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CN104263455A - Silicone oil composition - Google Patents

Silicone oil composition Download PDF

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Publication number
CN104263455A
CN104263455A CN201410547079.XA CN201410547079A CN104263455A CN 104263455 A CN104263455 A CN 104263455A CN 201410547079 A CN201410547079 A CN 201410547079A CN 104263455 A CN104263455 A CN 104263455A
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CN
China
Prior art keywords
ester
silicone oil
sebate
trihydroxymethylpropanyl
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410547079.XA
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Chinese (zh)
Inventor
赵小艳
宗明
曹毅
赵玉贞
何清玉
黄健龙
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China Petroleum and Chemical Corp
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China Petroleum and Chemical Corp
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Publication date
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Priority to CN201410547079.XA priority Critical patent/CN104263455A/en
Publication of CN104263455A publication Critical patent/CN104263455A/en
Pending legal-status Critical Current

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Abstract

The invention provides silicone oil composition which comprises larger than 0, smaller than or equal to 15% by weight of an ester mixture and the balance of silicone oil, wherein the ester mixture contains two or three of trimethylolpropane ester, pentaerythritol ester and sebacate. The provided silicone oil composition comprises two or three of trimethylolpropane ester, pentaerythritol ester and sebacate, so that rubber cannot shirk obviously when the silicone oil composition is contacted with the rubber, and experiment results prove that the rubber shrinkage is lower than 6% when the provided silicone oil composition is contacted with the rubber.

Description

A kind of silicone oil composite
Technical field
The invention belongs to lubricating oil field, particularly relate to a kind of silicone oil composite.
Background technology
Silicone oil is a kind of organopolysiloxane of different polymerization degree chain-like structure, belongs to organosilicon polymer, and its research and development started from for 18th century, were obtain one of industrialized synthetic lubricant the earliest.
Silicone oil has multiple excellent performance: 1) excellent viscosity-temperature characteristics energy, and its viscosity-temperature characteristics can be best in liquid lubricant, and in wide temperature range, viscosity change is little; 2) excellent thermostability, its heat decomposition temperature is more than 300 DEG C; 3) excellent thermo-oxidative stability, its life-time service temperature range is-50 ~ 180 DEG C, and along with the increase of phenyl content in molecule, its use temperature also can improve 20 ~ 70 DEG C; 4) excellent electrical insulating property, its volume resistance remains unchanged within the scope of 25 ~ 130 DEG C; 5) excellent shear stability, silicone oil has absorption vibration, prevents the function of Vibration propagation.
Because silicone oil has above excellent properties, it is made to be widely used in lubricating oil field: 1) instrument oil: silicone oil is accurate, small-sized, sensitive, instrument accurately as the main application of instrument oil, is used in the occasion that high temperature, low temperature or high/low temperature are taken into account; 2) electric insulation oil: silicone oil is applicable to make insulation cooling oil, buffering oil, transformer oil, insulation impregnating liquid and heat-eliminating medium; 3) hydraulic efficiency oil: be applicable to high/low temperature and require high hydraulic efficiency system, as aviation hydraulic system; 4) braking fluid: silicone oil has good hydrophobicity, unreactiveness and electrical insulating property, is suitable for making motor vehicle brake fluid; 5) damping fluid: silicone oil has excellent shear stability, has absorbing vibration, prevents the performance of vibration transmission, be widely used as damping fluid; 6) compressor oil: can be used as long lifetime compressor oil; 7) heat trnasfer oil: the silicone oil that viscosity is lower is good heat-transfer medium; 8) grease base oil.
Silicone oil, in the use in above lubricating oil field, more or less can touch quality of rubber materials, and silicone oil contacts with rubber rubber can be made to occur obvious shrinkage phenomenon, thus causes the rubber loss of seal effect as sealing material.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of silicone oil composite, when silicone oil composite provided by the invention contacts with rubber phase, rubber there will not be obvious shrinkage phenomenon.
The invention provides a kind of silicone oil composite, comprising:
Be greater than the ester mixture that 0 is less than or equal to 15wt%;
The silicone oil of surplus;
Described ester mixture is in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three.
Preferably, described ester mixture is trihydroxymethylpropanyl ester and sebate;
The mass ratio of described trihydroxymethylpropanyl ester and sebate is 3 ~ 7:7 ~ 3.
Preferably, described ester mixture is trihydroxymethylpropanyl ester and pentaerythritol ester;
The mass ratio of described trihydroxymethylpropanyl ester and pentaerythritol ester is 2 ~ 6:8 ~ 4.
Preferably, described ester mixture is sebate and pentaerythritol ester;
The mass ratio of described sebate and pentaerythritol ester is 1 ~ 7:9 ~ 3.
Preferably, described ester mixture is trihydroxymethylpropanyl ester, pentaerythritol ester and sebate;
The mass ratio of described trihydroxymethylpropanyl ester, pentaerythritol ester and sebate is 2 ~ 5:2 ~ 3:6 ~ 2.
Preferably, described trihydroxymethylpropanyl ester is one or more in tricarboxymethyl propane oleate, trimethylolpropane caprylate and TriMethylolPropane(TMP) mixed ester.
Preferably, described pentaerythritol ester is PETO and/or tetramethylolmethane octanoate.
Preferably, described sebate is octyl sebacate and/or the own ester of sebacic acid.
Preferably, described silicone oil is methyl-silicone oil, branched chain methyl silicone oil, phenyl silicone oil or side chain tolyl silicone oil.
Preferably, described silicone oil composite comprises the ester mixture of 4 ~ 10wt%.
Compared with prior art, the invention provides a kind of silicone oil composite, comprising: be greater than the ester mixture that 0 is less than or equal to 15wt%; The silicone oil of surplus; Described ester mixture is in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three.Silicone oil composite provided by the invention comprises in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three, when it contacts with rubber phase, and rubber there will not be obvious shrinkage phenomenon.Experimental result shows, when silicone oil composite provided by the invention contacts with rubber phase, the shrinking percentage of rubber is lower than 6%.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The invention provides a kind of silicone oil composite, comprising:
Be greater than the ester mixture that 0 is less than or equal to 15wt%;
The silicone oil of surplus;
Described ester mixture is in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three.
The invention provides a kind of silicone oil composite, comprise ester mixture and silicone oil.Wherein, described ester mixture is two or three in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate.Described trihydroxymethylpropanyl ester be preferably in tricarboxymethyl propane oleate, trimethylolpropane caprylate and TriMethylolPropane(TMP) mixed ester one or more, be more preferably tricarboxymethyl propane oleate or TriMethylolPropane(TMP) n-caprylic acid ester.Wherein, described TriMethylolPropane(TMP) mixed ester a kind ofly carries out the obtained organic compound of esterification by TriMethylolPropane(TMP) and multiple carboxylic acid, and described multiple carboxylic acid is preferably in enanthic acid, sad and n-nonanoic acid two or three.Described pentaerythritol ester is preferably PETO and/or tetramethylolmethane octanoate, is more preferably PETO or tetramethylolmethane four 2-ethylhexoate.Described sebate is preferably octyl sebacate and/or the own ester of sebacic acid, is more preferably diisooctyl sebacate.In certain embodiments of the present invention, described ester mixture is preferably trihydroxymethylpropanyl ester and sebate, and the mass ratio of described trihydroxymethylpropanyl ester and sebate is preferably 3 ~ 7:7 ~ 3; In certain embodiments of the present invention, described ester mixture is preferably trihydroxymethylpropanyl ester and pentaerythritol ester, and the mass ratio of described trihydroxymethylpropanyl ester and pentaerythritol ester is preferably 2 ~ 6:8 ~ 4; In certain embodiments of the present invention, described ester mixture is preferably sebate and pentaerythritol ester, and the mass ratio of described sebate and pentaerythritol ester is preferably 1 ~ 7:9 ~ 3; In certain embodiments of the present invention, described ester mixture is preferably trihydroxymethylpropanyl ester, pentaerythritol ester and sebate, and the mass ratio of described trihydroxymethylpropanyl ester, pentaerythritol ester and sebate is preferably 2 ~ 5:2 ~ 3:6 ~ 2.The content of described ester mixture in silicone oil composite is less than or equal to 15wt% for being greater than 0, is preferably 4 ~ 10wt%.
Silicone oil composite provided by the invention comprises silicone oil, and described silicone oil is the organopolysiloxane of chain-like structure, is preferably methyl-silicone oil, branched chain methyl silicone oil, phenyl silicone oil or side chain tolyl silicone oil.
Described methyl-silicone oil has formula (I) structure:
In formula (I), n is the polymerization degree, and n is preferably 20 ~ 150.
Described branched chain methyl silicone oil has formula (II) structure:
In formula (II), a, b, c are the polymerization degree, and a is preferably 3 ~ 20, b and is preferably 95 ~ 485, c and is preferably 1 ~ 3; X is O.
In the present invention, described silicone oil and ester mixture are mixed in proportion and can obtain silicone oil composite.
Silicone oil composite provided by the invention comprises in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three, when it contacts with rubber phase, and rubber there will not be obvious shrinkage phenomenon.Experimental result shows, when silicone oil composite provided by the invention contacts with rubber phase, the shrinking percentage of rubber is lower than 6%.
For the purpose of clearer, be described in detail below by following examples.
Embodiment 1
The diisooctyl sebacate of the branched chain methyl silicone oil (a=12, b=388, c=2, X are O) of formula (II) structure of 94 weight parts, the tricarboxymethyl propane oleate of 2.4 weight parts and 3.6 weight parts is mixed, obtains silicone oil composite.
Carry out rubber compatibility test (testing method is GB/T 1690 vulcanized rubber seakeeping test method) to above-mentioned silicone oil composite, result as shown in Table 1 and Table 2.Wherein, sample 1 is branched chain methyl silicone oil, sample 2 is the mixture of the branched chain methyl silicone oil of 94 weight parts and the tricarboxymethyl propane oleate of 6 weight parts, and sample 3 is the mixture of the branched chain methyl silicone oil of 94 weight parts and the diisooctyl sebacate of 6 weight parts, and sample 4 is above-mentioned silicone oil composite.
The compatibility test of table 1 and paracril
Can be found out by table 1, the rubber volume change of the silicone oil composite prepared of embodiment 1 when contacting with paracril and changes in weight minimum.
The compatibility test of table 2 and natural rubber
Can be found out by table 2, the rubber volume change of the silicone oil composite prepared of embodiment 1 when contacting with natural rubber and changes in weight minimum.
Embodiment 2
The PETO of the methyl-silicone oil (n=50) of formula (I) structure of 93 weight parts, the TriMethylolPropane(TMP) n-caprylic acid ester of 5.6 weight parts and 1.4 weight parts is mixed, obtains silicone oil composite.
Carry out rubber compatibility test (testing method is GB/T 1690 vulcanized rubber seakeeping test method) to above-mentioned silicone oil composite, result as shown in Table 3 and Table 4.Wherein, sample 1 is methyl-silicone oil, sample 2 is the mixture of the methyl-silicone oil of 93 weight parts and the TriMethylolPropane(TMP) n-caprylic acid ester of 7 weight parts, and sample 3 is the mixture of the methyl-silicone oil of 93 weight parts and the PETO of 7 weight parts, and sample 4 is above-mentioned silicone oil composite.
The compatibility test of table 3 and paracril
Can be found out by table 3, the rubber volume change of the silicone oil composite prepared of embodiment 2 when contacting with paracril and changes in weight minimum.
The compatibility test of table 4 and natural rubber
Can be found out by table 4, the rubber volume change of the silicone oil composite prepared of embodiment 2 when contacting with natural rubber and changes in weight minimum.
Embodiment 3
Sebacic acid two 2-ethylhexoate of the methyl-silicone oil (n=50) of formula (I) structure of 94.5 weight parts, the PETO of 2.75 weight parts and 2.75 weight parts is mixed, obtains silicone oil composite.
Carry out rubber compatibility test (testing method is GB/T 1690 vulcanized rubber seakeeping test method) to above-mentioned silicone oil composite, result as shown in table 5 and table 6.Wherein, sample 1 is methyl-silicone oil, sample 2 is the mixture of the methyl-silicone oil of 94.5 weight parts and the PETO of 5.5 weight parts, and sample 3 is the mixture of the methyl-silicone oil of 94.5 weight parts and the diisooctyl sebacate of 5.5 weight parts, and sample 4 is above-mentioned silicone oil composite.
The compatibility test of table 5 and paracril
Can be found out by table 5, the rubber volume change of the silicone oil composite prepared of embodiment 3 when contacting with paracril and changes in weight minimum.
The compatibility test of table 6 and natural rubber
Can be found out by table 6, the rubber volume change of the silicone oil composite prepared of embodiment 3 when contacting with natural rubber and changes in weight minimum.
Embodiment 4
The tetramethylolmethane octanoate of the branched chain methyl silicone oil (a=12, b=388, c=2, X are O) of formula (II) structure of 94 weight parts, the tricarboxymethyl propane oleate of 1.4 weight parts, the diisooctyl sebacate of 2.6 weight parts and 2.0 weight parts is mixed, obtains silicone oil composite.
Carry out rubber compatibility test (testing method is GB/T 1690 vulcanized rubber seakeeping test method) to above-mentioned silicone oil composite, result is as shown in table 7 and table 8.Wherein, sample 1 is branched chain methyl silicone oil, sample 2 is the mixture of the silicone oil of 94 weight parts and the tricarboxymethyl propane oleate of 6 weight parts, sample 3 is the mixture of the silicone oil of 94 weight parts and the tetramethylolmethane octanoate of 6 weight parts, sample 4 is the mixture of the silicone oil of 94 weight parts and the diisooctyl sebacate of 6 weight parts, and sample 5 is above-mentioned silicone oil composite.
The compatibility test of table 7 and paracril
Can be found out by table 7, the rubber volume change of the silicone oil composite prepared of embodiment 4 when contacting with paracril and changes in weight minimum.
The compatibility test of table 8 and natural rubber
Can be found out by table 8, the rubber volume change of the silicone oil composite prepared of embodiment 4 when contacting with natural rubber and changes in weight minimum.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. a silicone oil composite, comprising:
Be greater than the ester mixture that 0 is less than or equal to 15wt%;
The silicone oil of surplus;
Described ester mixture is in trihydroxymethylpropanyl ester, pentaerythritol ester and sebate two or three.
2. composition according to claim 1, is characterized in that, described ester mixture is trihydroxymethylpropanyl ester and sebate;
The mass ratio of described trihydroxymethylpropanyl ester and sebate is 3 ~ 7:7 ~ 3.
3. composition according to claim 1, is characterized in that, described ester mixture is trihydroxymethylpropanyl ester and pentaerythritol ester;
The mass ratio of described trihydroxymethylpropanyl ester and pentaerythritol ester is 2 ~ 6:8 ~ 4.
4. composition according to claim 1, is characterized in that, described ester mixture is sebate and pentaerythritol ester;
The mass ratio of described sebate and pentaerythritol ester is 1 ~ 7:9 ~ 3.
5. composition according to claim 1, is characterized in that, described ester mixture is trihydroxymethylpropanyl ester, pentaerythritol ester and sebate;
The mass ratio of described trihydroxymethylpropanyl ester, pentaerythritol ester and sebate is 2 ~ 5:2 ~ 3:6 ~ 2.
6. composition according to claim 1, is characterized in that, described trihydroxymethylpropanyl ester is one or more in tricarboxymethyl propane oleate, trimethylolpropane caprylate and TriMethylolPropane(TMP) mixed ester.
7. composition according to claim 1, is characterized in that, described pentaerythritol ester is PETO and/or tetramethylolmethane octanoate.
8. composition according to claim 1, is characterized in that, described sebate is octyl sebacate and/or the own ester of sebacic acid.
9. composition according to claim 1, is characterized in that, described silicone oil is methyl-silicone oil, branched chain methyl silicone oil, phenyl silicone oil or side chain tolyl silicone oil.
10. the composition according to any one of claim 1 ~ 9, is characterized in that, comprises the ester mixture of 4 ~ 10wt%.
CN201410547079.XA 2014-10-16 2014-10-16 Silicone oil composition Pending CN104263455A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105348805A (en) * 2015-12-11 2016-02-24 无锡亨宇减震器科技有限公司 Engine silicone oil shock absorber
CN105886087A (en) * 2016-05-10 2016-08-24 中国石油化工股份有限公司 Automobile brake lubricating grease composition
CN108165351A (en) * 2017-12-22 2018-06-15 武汉博达特种润滑技术有限公司 A kind of high/low temperature instrument fluid composition and preparation method thereof
CN109054955A (en) * 2018-09-25 2018-12-21 中国石油化工股份有限公司 A kind of composition and its application method improving compatibility between silicone oil and rubber
CN112175694A (en) * 2020-10-22 2021-01-05 安徽中天石化股份有限公司 Lubricating grease for automobile brake and preparation method thereof
CN112266811A (en) * 2020-10-23 2021-01-26 中国石油化工股份有限公司 Antirust instrument oil composition and antirust instrument oil

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105348805A (en) * 2015-12-11 2016-02-24 无锡亨宇减震器科技有限公司 Engine silicone oil shock absorber
CN105886087A (en) * 2016-05-10 2016-08-24 中国石油化工股份有限公司 Automobile brake lubricating grease composition
CN108165351A (en) * 2017-12-22 2018-06-15 武汉博达特种润滑技术有限公司 A kind of high/low temperature instrument fluid composition and preparation method thereof
CN109054955A (en) * 2018-09-25 2018-12-21 中国石油化工股份有限公司 A kind of composition and its application method improving compatibility between silicone oil and rubber
CN112175694A (en) * 2020-10-22 2021-01-05 安徽中天石化股份有限公司 Lubricating grease for automobile brake and preparation method thereof
CN112266811A (en) * 2020-10-23 2021-01-26 中国石油化工股份有限公司 Antirust instrument oil composition and antirust instrument oil

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