JP2005068305A - Composite resin composition and method for producing the same - Google Patents
Composite resin composition and method for producing the same Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims description 51
- 239000000805 composite resin Substances 0.000 title claims description 34
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 111
- 239000000057 synthetic resin Substances 0.000 claims abstract description 111
- 239000011256 inorganic filler Substances 0.000 claims abstract description 83
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 83
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002699 waste material Substances 0.000 claims description 110
- 238000004898 kneading Methods 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- -1 carbide Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000010883 coal ash Substances 0.000 claims description 6
- 239000011874 heated mixture Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 5
- 229920001187 thermosetting polymer Polymers 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 239000005909 Kieselgur Substances 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 239000002956 ash Substances 0.000 claims 2
- 235000015170 shellfish Nutrition 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 1
- 238000005453 pelletization Methods 0.000 claims 1
- 239000004567 concrete Substances 0.000 abstract description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 8
- 239000003063 flame retardant Substances 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000002440 industrial waste Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 238000011067 equilibration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 125000005394 methallyl group Chemical group 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
【課題】合成樹脂と無機フィラーとの結合状態を海島構造に形成することができ、無機フィラーの含有量を多くしても、コンクリートと同等特性の成形品を成形することができる。合成樹脂と共に無機フィラーの再利用効率を高めることができる。
【解決手段】合成樹脂材及び合成樹脂材より熱伝導率が高い無機フィラーを約３０乃至６０wt%の割合で含有し、合成樹脂材中に無機フィラーがほぼ均一に分散した海島構造からなる。
【選択図】 図１A bonded state between a synthetic resin and an inorganic filler can be formed in a sea-island structure, and even if the content of the inorganic filler is increased, a molded product having the same characteristics as concrete can be formed. The reuse efficiency of the inorganic filler can be increased together with the synthetic resin.
A synthetic resin material and a sea island structure in which an inorganic filler having a higher thermal conductivity than that of a synthetic resin material is contained at a ratio of about 30 to 60 wt%, and the inorganic filler is dispersed almost uniformly in the synthetic resin material.
[Selection] Figure 1
Description
本発明は、例えば産業廃棄物である使用済みの合成樹脂及びフライアッシュ等の無機フィラーの再利用を図るため、これらを原材料としてコンクリート代用製品の成形品を製造するのに使用する複合樹脂組成物及びその製造方法に関する。 The present invention is, for example, a composite resin composition used for producing a molded product of a concrete substitute product using these as raw materials in order to reuse used synthetic resin, such as industrial waste, and inorganic fillers such as fly ash. And a manufacturing method thereof.
使用済みの各種熱可塑性合成樹脂や、例えば石炭灰、フライアッシュ等の各種無機フィラーが産業廃棄物として大量に排出されている。これらの再利用により資源の有効活用を図るため、例えばトラフ、溝、管や枡（これら製品の用途を明確にする必要はないです。）等の各種コンクリート製品の代用品としてこれらを原材料とする成形品を製造している。 Various used thermoplastic synthetic resins and various inorganic fillers such as coal ash and fly ash are discharged in large quantities as industrial waste. In order to make effective use of resources by reusing them, for example, they are used as substitutes for various concrete products such as troughs, grooves, pipes and firewood (it is not necessary to clarify the use of these products). Manufactures molded products.
その際の製造方法としては、例えば特許文献１に示す成形物の製造方法が提案されている。 特許文献１の製造方法は、廃合成樹脂７０乃至９０重合％と、滑石、石炭灰、脈班石（elvan）、焼石灰、白土、黄土及び泥土からなる群から選択された一つ以上の結合剤１０乃至３０重合％とを各々１００メッシュ以上に粉砕した後、
５０乃至７０rpmの攪拌速度で攪拌させながら１５０乃至３００℃の温度範囲で溶融して 圧出成形することを特徴としている。
As a manufacturing method at that time, for example, a manufacturing method of a molded article shown in Patent Document 1 has been proposed. The production method of Patent Document 1 includes 70 to 90% by weight of a synthetic resin and one or more bonds selected from the group consisting of talc, coal ash, elvan, burnt lime, clay, loess and mud. After pulverizing 10 to 30% of the agent to 100 mesh or more,
It is characterized by melting and extrusion molding at a temperature range of 150 to 300 ° C. while stirring at a stirring speed of 50 to 70 rpm.
上記した製造方法により得られる成形品は、廃合成樹脂と無機フィラーとが均一に分散して結合していない構造であるため、耐薬品性（耐酸及び耐アルカリ性）、耐候性、耐強度性等が悪く、経時使用に伴って劣化し易く、短期間で破壊するおそれが高く、長期の使用を前提とするコンクリートの代用品としては有用でなかった。 The molded product obtained by the above manufacturing method has a structure in which the waste synthetic resin and the inorganic filler are not uniformly dispersed and bonded, so that chemical resistance (acid resistance and alkali resistance), weather resistance, strength resistance, etc. However, it is prone to deterioration with use over time, is likely to break down in a short period of time, and was not useful as a substitute for concrete assuming long-term use.
また、上記した製造方法にあっては、無機フィラーの含有量が１０乃至３０重合％と極めて低く、その再利用効率が悪かった。再利用効率を高めるために無機フィラーの含有量を増大させた場合には、合成樹脂中における無機フィラーの分散状態が不均一になって成形品強度等が著しく低下して耐久性が悪く、コンクリート代用品として使用できなかった。更に、合成樹脂単体で肉厚状のコンクリート代用品を成形した場合にあっては、成形時の冷却に時間がかかり、短時間に多数の製品を成形できなかった。
本発明が解決しようとする問題点は、溶融した合成樹脂に無機フィラーを混ぜた組成物で成形された成形品は、コンクリートと同等の特性を有していない点にある。また、合成樹脂に対する無機フィラーの含有量を多くした場合には、成形品自体が極度に脆弱化してコンクリート代用品としての使用に耐えられない点にある。更に、無機フィラーの含有量が低く抑えられるために無機フィラーの再利用効率が悪い点にある。 The problem to be solved by the present invention is that a molded product molded with a composition in which an inorganic filler is mixed with a melted synthetic resin does not have the same properties as concrete. Further, when the content of the inorganic filler with respect to the synthetic resin is increased, the molded product itself becomes extremely weak and cannot be used as a concrete substitute. Furthermore, since the content of the inorganic filler is kept low, the reuse efficiency of the inorganic filler is poor.
本発明の複合樹脂組成物は、合成樹脂と無機フィラーとの結合状態を海島構造に形成することができ、無機フィラーの含有量を多くしても、コンクリートと同等特性の成形品を成形することができる利点がある。また、合成樹脂と共に無機フィラーの再利用効率を高めることができる利点がある。配合される無機フィラーが合成樹脂に比べて熱伝導性が高いため、合成樹脂単体に比べて成形後の冷却時間を短縮し、短時間に大量成形を可能にする利点がある。 The composite resin composition of the present invention can form a bonded state between a synthetic resin and an inorganic filler in a sea-island structure, and can mold a molded product having the same characteristics as concrete even if the content of the inorganic filler is increased. There is an advantage that can be. Moreover, there exists an advantage which can improve the reuse efficiency of an inorganic filler with a synthetic resin. Since the blended inorganic filler has higher thermal conductivity than the synthetic resin, there is an advantage that the cooling time after molding is shortened compared to the synthetic resin alone and mass molding is possible in a short time.
本発明は、合成樹脂材及び該合成樹脂材より熱伝導率が高い無機フィラーを約３０乃至６０wt%の割合で含有し、合成樹脂材中に無機フィラーがほぼ均一に分散した海島構造からなることを特徴とする。 The present invention comprises a synthetic resin material and a sea-island structure in which an inorganic filler having a higher thermal conductivity than that of the synthetic resin material is contained at a ratio of about 30 to 60 wt%, and the inorganic filler is dispersed almost uniformly in the synthetic resin material. It is characterized by.
以下に実施形態を示す図に従って本発明を説明する。
図１において、複合樹脂組成物は、主に産業廃棄物として排出される使用済みの合成樹脂材（以下、廃合成樹脂という）と該廃合成樹脂より熱伝導率が高い無機フィラー（以下、廃無機フィラーという）を主成分とする。その内、廃合成樹脂は、ポリプロピレン、ポリエチレン、ポリスチレン、脱塩ポリ塩化ビニール、ポリウレタン、メタリリル樹脂等の熱可塑性樹脂で、所望の大きさ、即ち１０mm以下、望ましくは５mm以下の大きさにペレット化または破砕される。
The present invention will be described below with reference to the drawings showing embodiments.
In FIG. 1, a composite resin composition is composed of a used synthetic resin material (hereinafter referred to as waste synthetic resin) mainly discharged as industrial waste and an inorganic filler (hereinafter referred to as waste) having a higher thermal conductivity than the waste synthetic resin. Main ingredient is inorganic filler). Among them, the waste synthetic resin is a thermoplastic resin such as polypropylene, polyethylene, polystyrene, desalted polyvinyl chloride, polyurethane, and methallyl resin, and is pelletized to a desired size, that is, 10 mm or less, preferably 5 mm or less. Or it is crushed.
この廃合成樹脂は、その溶融温度がほほ一致する、例えばポリプロピレン、ポリエチレン、ポリスチレン、ポリウレタン等の組合せ、又は溶融温度が異なる、例えばポリプロピレン、ポリエチレンと脱塩ポリ塩化ビニール、メタクリル樹脂等の組合せであってもよい。 This waste synthetic resin may be a combination of, for example, polypropylene, polyethylene, polystyrene, polyurethane, or the like, or a combination of polypropylene, polyethylene, desalted polyvinyl chloride, methacrylic resin, etc., having different melting temperatures. May be.
尚、本発明の合成樹脂は、主に廃合成樹脂を使用するものであるが、廃合成樹脂に適宜比率でバージン樹脂を混ぜたものであってもよい。 In addition, although the synthetic resin of this invention mainly uses a waste synthetic resin, you may mix the virgin resin with the waste synthetic resin in a suitable ratio.
廃無機フィラーとしては、主として産業廃棄物として排出される石炭灰、フライアッシュ、高炉スラグ、炭化物、珪藻土、炭酸カルシウム、アルミナや一部フィラー換算された使用済みの熱硬化性樹脂等で、廃合成樹脂より熱伝導率が高いのを条件とし、所望の大きさ、例えば１００マイクロm以下、望ましくは４５マイクロm以下に微粉砕される。使用する廃無機フィラーとしては、単一種類又は複数種類のいずれであってもよい。尚、使用済みを含む微粉砕した熱硬化性樹脂にあっては、無機フィラーとしてではなく、増量材として添加してもよい。 Waste inorganic fillers mainly include coal ash, fly ash, blast furnace slag, carbides, diatomaceous earth, calcium carbonate, alumina, and used thermosetting resins that are partially converted into fillers, which are discharged as industrial waste. On the condition that the thermal conductivity is higher than that of the resin, it is pulverized to a desired size, for example, 100 μm or less, preferably 45 μm or less. The waste inorganic filler to be used may be either a single type or a plurality of types. In addition, in the finely pulverized thermosetting resin including used ones, it may be added not as an inorganic filler but as an extender.
上記した廃合成樹脂及び廃無機フィラーは以下の工程により複合樹脂組成物に製造される。 The above-mentioned waste synthetic resin and waste inorganic filler are produced into a composite resin composition by the following steps.
１．常温混合工程
廃合成樹脂材：約４０〜７０ｗｔ％及び廃無機フィラー：約３０〜６０ｗｔ％に助剤（難燃材、強化材、滑材、可塑剤、紫外線吸収剤、着色剤、帯電防止剤、抗菌剤、改築材等の内から成形物の用途に応じて選択される。）や、必要に応じて微粉砕した使用済みの熱硬化性樹脂粉等を増量材として所定量添加した混合物を常温下で攪拌して常温混合物を生成する。
1. Normal temperature mixing process waste synthetic resin material: about 40-70 wt% and waste inorganic filler: about 30-60 wt% auxiliary agent (flame retardant, reinforcing material, lubricant, plasticizer, UV absorber, colorant, antistatic agent Selected from the antibacterial agent, the remodeling material, etc. according to the use of the molded product.) Or a mixture obtained by adding a predetermined amount of used thermosetting resin powder, etc., finely pulverized if necessary as an extender Stir at room temperature to form a room temperature mixture.
上記攪拌作用により廃合成樹脂の表面に廃無機フィラーがほぼ均一に付着する。この付着作用は、攪拌に伴う廃合成樹脂の振動による摩擦により帯電する静電気またはファンデルワ−ルス力により無機フィラーを吸着するものと考えられる。 Due to the stirring action, the waste inorganic filler adheres almost uniformly to the surface of the waste synthetic resin. This adhesion action is considered to adsorb the inorganic filler by static electricity or van der Waals force charged by friction caused by vibration of waste synthetic resin accompanying stirring.
２．加熱混練工程
上記１により生成された常温混合物を廃合成樹脂の軟化温度下で加熱混練する。このとき、廃合成樹脂の表面にほぼ均一に付着した廃無機フィラーが廃合成樹脂より熱伝導率が高いため、先に軟化温度まで昇温して廃合成樹脂との間に温度差が発生し、昇温した廃無機フィラーを介して廃合成樹脂に熱エネルギーを供給して軟化させる。このとき、廃合成樹脂がガラス転移温度以上になると、電子がブラウン運動により振動して軟化し始める。
2. Heat kneading step The room temperature mixture produced by the above 1 is heat kneaded under the softening temperature of the waste synthetic resin. At this time, since the waste inorganic filler that adheres almost uniformly to the surface of the waste synthetic resin has a higher thermal conductivity than the waste synthetic resin, a temperature difference is generated between the waste synthetic resin and the softening temperature. Then, heat energy is supplied to the waste synthetic resin through the heated waste inorganic filler and softened. At this time, when the waste synthetic resin becomes equal to or higher than the glass transition temperature, electrons vibrate due to Brownian motion and begin to soften.
また、上記のように廃無機フィラーからの熱エネルギーにより廃合成樹脂が軟化した状態で混練圧が作用し、この混練圧と自己せん断熱の作用により凝集した廃無機フィラーを分散させながら軟化した廃合成樹脂内に廃無機フィラーを押し込み、加熱混合物を生成する。 In addition, as described above, the kneading pressure acts in a state where the waste synthetic resin is softened by the thermal energy from the waste inorganic filler, and the waste softened while dispersing the waste inorganic filler aggregated by the action of this kneading pressure and self-shearing heat. A waste inorganic filler is pushed into the synthetic resin to form a heated mixture.
３．溶融混練工程
上記２による加熱混合物を、廃合成樹脂の溶融温度下で加熱混練して溶融混合物を生成する。これにより廃合成樹脂自体、外部から直接付与される熱や廃無機フィラーを介して付与される熱や自己せん断熱により溶融して流動状態になる。このとき、廃合成樹脂と廃無機フィラーの界面では熱エネルギーの授受により浸漬熱が助長される。これにより多くの廃無機フィラーが溶融した廃合成樹脂に取り込まれて廃無機フィラーの表面に廃合成樹脂がコーティングされた状態になる。
3. Melt-kneading step The heated mixture according to 2 above is heated and kneaded at the melting temperature of the waste synthetic resin to produce a molten mixture. As a result, the waste synthetic resin itself melts into a fluid state due to heat applied directly from the outside, heat applied via the waste inorganic filler, or self-shearing heat. At this time, at the interface between the waste synthetic resin and the waste inorganic filler, the heat of immersion is promoted by the transfer of thermal energy. As a result, a large amount of the waste inorganic filler is taken into the molten waste synthetic resin, and the surface of the waste inorganic filler is coated with the waste synthetic resin.
この結果、廃無機フィラー自体、その表面には廃合成樹脂がコーティングされることにより溶融した廃合成樹脂との親和性が高くなり、溶融した廃合成樹脂中において廃無機フィラーを均一に分散させる。 As a result, the waste inorganic filler itself has a high affinity with the molten waste synthetic resin by coating the surface with the waste synthetic resin, and the waste inorganic filler is uniformly dispersed in the molten waste synthetic resin.
尚、この溶融混練工程においては、溶融した廃合成樹脂と廃無機フィラーとは熱伝導率が異なるために常に温度差があり、廃合成樹脂は廃無機フィラーからの熱エネルギーの供給状態が継続されることになる。 In this melt-kneading process, the molten waste synthetic resin and the waste inorganic filler always have a temperature difference because the thermal conductivity is different, and the waste synthetic resin is continuously supplied with thermal energy from the waste inorganic filler. Will be.
４．海島構造形成工程
上記３による溶融混合物の加熱及び混練状態を継続して廃合成樹脂及び廃無機フィラーの温度勾配が平衡状態化して複合樹脂組成物を生成する。この温度勾配の平衡化に伴い、廃合成樹脂において廃無機フィラーの分散状態がほぼ均一になり、海島構造を形成して複合樹脂組成物を生成する。
4). Sea-island structure forming step The heating and kneading state of the molten mixture according to 3 above is continued, and the temperature gradient of the waste synthetic resin and the waste inorganic filler is brought into an equilibrium state to produce a composite resin composition. Along with the equilibration of this temperature gradient, the dispersion state of the waste inorganic filler becomes almost uniform in the waste synthetic resin, and a sea-island structure is formed to produce a composite resin composition.
上記したように廃合成樹脂に対して熱伝導率が高い廃無機フィラーを使用し、加熱時に両者間に温度差を生じさて熱エネルギーを授受させることにより浸漬熱を助長させた状態で混練圧や自己せん断熱を作用させることにより、省エネルギーと、廃合成樹脂の濡れ性、廃合成樹脂に対する廃無機フィラーの付着性及び浸漬性を高め、高比率で廃無機フィラーを混合させると共に均一分散した海島構造化することができる。 As described above, a waste inorganic filler having a high thermal conductivity with respect to the waste synthetic resin is used, and a kneading pressure or By applying self-shear heat, energy saving, wet synthetic resin wettability, waste inorganic filler adherence to waste synthetic resin and soaking property are improved, and high proportion of waste inorganic filler is mixed and uniformly dispersed sea island structure Can be
上記により生成された複合樹脂組成物は、溶融状態のまま、又は必要に応じて溶融した複合樹脂組成物中に混在する空気を脱気した後に、例えば射出成形機または押出し成形機のホッパ部に供給し、例えばコンクリート代用品である所望の成形品に成形したり、溶融した複合樹脂組成物を微小空間内に通過させて棒状成形品に成形した後に所定の長さ毎に切断してペレット化し、射出成形機または押出し成形機に供給される成形原料とする。尚、ペレット状の複合樹脂組成物を製造する際には、微小空間内に溶融した複合樹脂組成物を通過させることにより含有した空気を脱気させることができ、特に脱気処理は不要である。 The composite resin composition produced as described above is in a molten state or, if necessary, after deaeration of air mixed in the molten composite resin composition, for example, in the hopper part of an injection molding machine or an extrusion molding machine. For example, it is molded into a desired molded product that is a substitute for concrete, or the molten composite resin composition is passed through a micro space to be molded into a rod-shaped molded product, and then cut into pellets by a predetermined length. The molding raw material is supplied to an injection molding machine or an extrusion molding machine. When producing a pellet-shaped composite resin composition, the contained air can be degassed by passing the molten composite resin composition into a minute space, and no degassing treatment is required. .
また、上記のように製造された溶融状態の複合樹脂組成物或いはペレット化された複合樹脂組成物を成形原料として生産された所望の製品にあっては、その使用後に所望の大きさに粉砕した後に溶融し、その溶融状態のまま、或いは硬化させた後に所望の大きさにペレット化して再び成形原料とすることができる。 In addition, in a desired product produced using the molten composite resin composition or the pelletized composite resin composition produced as described above as a molding raw material, the product was pulverized to a desired size after use. It can be melted later and left in its molten state or cured, and then pelletized to a desired size and used again as a forming raw material.
廃合成樹脂材：主にオレフィン系包装容器の廃合成樹脂で、ＰＰ、ＰＥ、ＰＳを使用し、約5mm前後のペレット状又は破砕したものを使用する。
廃無機フィラー：石炭灰（JISA6201II）を使用する。
助剤：強化材（平均線径10マイクロmの廃グラスファイバー）、難燃剤（デカブロン、難燃助剤として三酸化アンチモン）を使用する。
Waste synthetic resin material: Waste synthetic resin mainly for olefin-based packaging containers, using PP, PE, PS, pellets of about 5 mm or crushed.
Waste inorganic filler: Coal ash (JISA6201II) is used.
Auxiliary: Use reinforcing material (waste glass fiber with an average wire diameter of 10 μm) and flame retardant (decablon, antimony trioxide as a flame retardant aid).
常温混合工程
上記した廃合成樹脂48wt%、難燃助剤4wt%、難燃剤8wt%、強化材3wt%、廃無機フィラー37wt%を、上記順序で攪拌混合機に投入し、常温下、約20分の間、攪拌混合することにより廃合成樹脂材の表面に微粉体である廃無機フィラー、助剤を付着させる。このときの廃合成樹脂材と廃無機フィラーとの割合は、57：43になる、また、この攪拌混合において、廃合成樹脂材の表面に付着しきれない無機フィラー、助剤及び強化材は、廃合成樹脂間にて均一分散状態になる。
Room temperature mixing process The above-mentioned waste synthetic resin 48 wt%, flame retardant aid 4 wt%, flame retardant 8 wt%, reinforcing material 3 wt%, waste inorganic filler 37 wt% are put into the stirring mixer in the above order, and at room temperature, about 20 By stirring and mixing for a minute, the waste inorganic filler and auxiliary agent, which are fine powder, are adhered to the surface of the waste synthetic resin material. The ratio of the waste synthetic resin material and the waste inorganic filler at this time is 57:43, and in this stirring and mixing, the inorganic filler, the auxiliary agent and the reinforcing material that cannot adhere to the surface of the waste synthetic resin material are: Uniformly dispersed between the waste synthetic resins.
加熱混練工程
上記した常温混合物を、加熱押出し混合機における加熱シリンダ内に投入し、加熱温度：約180℃度乃至200℃で、混練しながら500Kg/hrの量で圧送しながら廃合成樹脂材の軟化温度下で加熱混練し、廃無機フィラーからの熱エネルギーにより廃合成樹脂が軟化した状態で作用する混練圧により凝集した廃無機フィラーを分散させながら軟化した廃合成樹脂内に廃無機フィラーを押し込み、加熱混合物を生成する。
Heating and kneading step The above-mentioned normal temperature mixture is put into a heating cylinder in a heat-extruding mixer and heated at a temperature of about 180 ° C. to 200 ° C. while being kneaded and pumped at an amount of 500 kg / hr, the waste synthetic resin material Waste inorganic filler is pushed into the softened waste synthetic resin while dispersing and agglomerating waste inorganic filler that is agglomerated by the kneading pressure that acts when the waste synthetic resin is softened by the thermal energy from the waste inorganic filler. To produce a heated mixture.
溶融混練工程
上記した加熱混合物を加熱押出し混合機における加熱シリンダ内に投入し、加熱温度：約230℃で、混練しながら500Kg/hrの量で圧送し、廃合成樹脂材を溶融しながら混練して溶融混合物を生成する。これにより廃合成樹脂自体、自己せん断熱と外部から直接付与される熱や廃無機フィラーを介して付与される熱により溶融して流動状態になり、廃合成樹脂と廃無機フィラーの界面では熱エネルギーの授受により浸漬熱が助長されることにより多くの廃無機フィラーが溶融した廃合成樹脂に取り込まれて廃無機フィラーの表面に廃合成樹脂がコーティングされた状態になる。
Melting and kneading process The above heated mixture is put into a heating cylinder in a heating and extruding mixer, heated at a temperature of about 230 ° C, and pumped at a rate of 500 kg / hr while kneading, and the waste synthetic resin material is kneaded while melting. To produce a molten mixture. As a result, the waste synthetic resin itself melts into a fluid state due to self-shearing heat, heat applied directly from the outside, or heat applied through the waste inorganic filler, and heat energy is generated at the interface between the waste synthetic resin and the waste inorganic filler. As the heat of immersion is promoted by giving and receiving, a lot of waste inorganic filler is taken into the molten waste synthetic resin, and the surface of the waste inorganic filler is coated with the waste synthetic resin.
この結果、廃無機フィラー自体、その表面には廃合成樹脂がコーティングされることにより溶融した廃合成樹脂との親和性が高くなり、溶融した廃合成樹脂中において廃無機フィラーを均一に分散させる。 As a result, the waste inorganic filler itself has a high affinity with the molten waste synthetic resin by coating the surface with the waste synthetic resin, and the waste inorganic filler is uniformly dispersed in the molten waste synthetic resin.
海島構造形成工程
上記した加熱押出し混合機による加熱混練状態（加熱温度：約230℃、混練圧送量：500Kg/hr）を継続することにより廃合成樹脂及び廃無機フィラーの温度勾配が平衡状態化して複合樹脂組成物を生成する。この温度勾配の平衡化に伴い、廃合成樹脂において廃無機フィラーの分散状態がほぼ均一になり、海島構造を形成して複合樹脂組成物を生成する。
Sea-island structure formation process The temperature gradient of the waste synthetic resin and the waste inorganic filler is brought into an equilibrium state by continuing the heating and kneading state (heating temperature: about 230 ° C., kneading pumping amount: 500 kg / hr) by the above-described heat-extrusion mixer. A composite resin composition is produced. Along with the equilibration of this temperature gradient, the dispersion state of the waste inorganic filler becomes almost uniform in the waste synthetic resin, and a sea-island structure is formed to produce a composite resin composition.
上記した加熱混練工程、溶融混練工程及び海島構造形成工程は、単一の加熱押出し混合機を使用して一体に行う。即ち、加熱押出し混合機における加熱シリンダの前段部分にて上記した加熱混練を、中段で上記した溶融混練を、更に後段で海島構造形成を行う。上記条件下における複合樹脂組成物の海島構造状態を図２に示す。図２は複合樹脂組成物の切断面を倍率５００倍で拡大した電子顕微鏡写真である。 The heating kneading step, the melt kneading step, and the sea-island structure forming step are integrally performed using a single heating extrusion mixer. That is, the above-described heat kneading is performed at the front part of the heating cylinder in the heat-extruding mixer, the melt kneading is performed at the middle stage, and the sea-island structure is formed at the subsequent stage. The sea-island structure state of the composite resin composition under the above conditions is shown in FIG. FIG. 2 is an electron micrograph obtained by enlarging the cut surface of the composite resin composition at a magnification of 500 times.
上記条件により製造された複合樹脂組成物を樹脂原料として成形されたケーブルトラフ（１５０×１２０×１０００mm、厚さ：１２mm、重量：１５kg）にあっては、トラフ本体及びトラフ蓋の曲げ強度試験で破壊荷重：１３．０KN以上(JISA1106付属書による)、蓋曲げ強度試験で破壊荷重：３５．０KN以上(JISA5327付属書10による)、本体曲げ強度試験で破壊荷重：３．２KN以上(JISA5327付属書10による)、５kg鉄球落下による落錘衝撃試験で破壊衝撃：３０．０J以上(JISK7211準拠による)であり、コンクリート製品の代用品として充分に実用に耐えれるものである。 For cable troughs (150 x 120 x 1000 mm, thickness: 12 mm, weight: 15 kg) molded with the composite resin composition produced under the above conditions as the resin raw material, the bending strength test of the trough body and trough lid Breaking load: 13.0KN or more (according to JISA1106 attachment), breaking load in lid bending strength test: 35.0KN or more (according to JISA5327 attachment 10), breaking load in body bending strength test: 3.2KN or more (JISA5327 attachment) (According to JISK7211), the impact is 50.0 J or more (according to JISK7211), and it can withstand practical use as a substitute for concrete products.
上記した混合割合の他の混合例を以下に示す。その際に廃合成樹脂材、廃無機フィラー及び助剤の材質に付いては、具体例１と同様とする。 Another example of mixing described above is shown below. At that time, the materials of the waste synthetic resin material, the waste inorganic filler, and the auxiliary agent are the same as those in Example 1.
配合例１（廃無機フィラー30：廃合成樹脂材70）
廃合成樹脂材：57.9wt%
難燃剤：14.4wt%
強化材：3.0wt%
廃無機フィラー：24.7wt%
Formulation Example 1 (Waste inorganic filler 30: Waste synthetic resin material 70)
Waste synthetic resin: 57.9wt%
Flame retardant: 14.4wt%
Reinforcement: 3.0wt%
Waste inorganic filler: 24.7wt%
配合例２（廃無機フィラー50：廃合成樹脂材50）
廃合成樹脂材：43.1wt%
難燃剤：10.8wt%
強化材：3.0wt%
廃無機フィラー：43.1wt%
Formulation Example 2 (Waste inorganic filler 50: Waste synthetic resin material 50)
Waste synthetic resin: 43.1wt%
Flame retardant: 10.8wt%
Reinforcement: 3.0wt%
Waste inorganic filler: 43.1wt%
配合例３（廃無機フィラー60：廃合成樹脂材40）
廃合成樹脂材：35.3wt%
難燃剤：8.8wt%
強化材：3.0wt%
廃無機フィラー：52.9wt%
Formulation Example 3 (Waste inorganic filler 60: Waste synthetic resin material 40)
Waste synthetic resin: 35.3wt%
Flame retardant: 8.8wt%
Reinforcement: 3.0wt%
Waste inorganic filler: 52.9wt%
何れの配合例による複合樹脂組成物にあっては、廃合成樹脂材に廃無機フィラーがほぼ均一に分散した海島構造になるように製造することができた。 The composite resin composition according to any formulation example could be manufactured to have a sea-island structure in which the waste inorganic filler was dispersed almost uniformly in the waste synthetic resin material.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008088326A (en) * | 2006-10-03 | 2008-04-17 | Sekisui Chem Co Ltd | Extrusion-molded body and method for producing the same |
| JP2008150405A (en) * | 2006-12-14 | 2008-07-03 | Sekisui Chem Co Ltd | Fly ash-reinforced thermoplastic resin |
| JP2013507543A (en) * | 2009-10-07 | 2013-03-04 | 成栗 李 | Artificial turf filler and artificial turf containing the same |
| US20140151924A1 (en) * | 2011-03-04 | 2014-06-05 | Revolutionary Plastics, Llc | Cycle time reduction masterbatches and their use in thermoplastic compounds |
| US9481768B1 (en) | 2013-03-15 | 2016-11-01 | Revolutionary Plastics, Llc | Method of mixing to form composition |
| US9605142B2 (en) | 2011-11-29 | 2017-03-28 | Revolutionary Plastics, Llc | Low density high impact resistant composition and method of forming |
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- 2003-08-26 JP JP2003300692A patent/JP3719257B2/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008088326A (en) * | 2006-10-03 | 2008-04-17 | Sekisui Chem Co Ltd | Extrusion-molded body and method for producing the same |
| JP2008150405A (en) * | 2006-12-14 | 2008-07-03 | Sekisui Chem Co Ltd | Fly ash-reinforced thermoplastic resin |
| JP2013507543A (en) * | 2009-10-07 | 2013-03-04 | 成栗 李 | Artificial turf filler and artificial turf containing the same |
| US20140151924A1 (en) * | 2011-03-04 | 2014-06-05 | Revolutionary Plastics, Llc | Cycle time reduction masterbatches and their use in thermoplastic compounds |
| US9290645B2 (en) * | 2011-03-04 | 2016-03-22 | Polyone Corporation | Cycle time reduction masterbatches and their use in thermoplastic compounds |
| US9976002B2 (en) | 2011-05-27 | 2018-05-22 | Revolutionary Plastics, Llc | Method to heuristically control formation and properties of a composition |
| US9605142B2 (en) | 2011-11-29 | 2017-03-28 | Revolutionary Plastics, Llc | Low density high impact resistant composition and method of forming |
| US9481768B1 (en) | 2013-03-15 | 2016-11-01 | Revolutionary Plastics, Llc | Method of mixing to form composition |
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