CN105504678A - Corrosion-resistant conductive material and application thereof - Google Patents

Abstract

The invention belongs to the field of new electric power materials, and discloses a corrosion-resistant conductive material, which is prepared from the following raw materials in parts by weight: 1-2 parts of diatomite, 1-2 parts of glucose, and 1-2 parts of sodium water glass , 1-2 parts of zinc oxide, 1-2 parts of lithium bentonite, 1-2 parts of silicon carbide, 2-3 parts of sodium dodecyl sulfonate, 2-3 parts of magnesium hydroxide, 2-3 parts of barium stearate 3-4 parts of silver nitrate solution, 3-4 parts of glass fiber, 6-8 parts of glyceryl tristearate, 6-8 parts of polyethylene glycol diacrylate, 8-10 parts of chitosan, epoxy 10-12 parts of resin, 15-25 parts of chlorinated butadiene, 40-60 parts of graphite. While maintaining good conductivity, the conductive material of the invention also has good mechanical properties and corrosion resistance, and has good application prospects.

Description

A kind of corrosion-resistant conductive material and its application

technical field

The invention belongs to the field of new electric power materials, and in particular relates to a corrosion-resistant conductive material and its application.

Background technique

With the development of society, the use of conductive materials is becoming more and more common. It is a new type of functional material that has developed rapidly in recent years. In addition to having conductive and electric heating functions, it also needs to have good mechanical properties and corrosion resistance. The conductivity of composite materials mainly depends on the conduction effect of the conductive material. The quality of the conductive material directly affects the effect of conduction. The high-precision motor equipment used in modern industry puts higher requirements on the technical instructions of conductive materials. How to design a new type of conductive material with good conductivity, high strength, corrosion resistance, long life and simple process is the current goals that need to be addressed.

Contents of the invention

In order to solve the high conductivity, corrosion resistance, low cost, long service life and other properties required by the conductive materials in the prior art, the present invention provides a corrosion-resistant conductive material.

In order to solve the problems of the technologies described above, the technical solution of the present invention is as follows:

A corrosion-resistant conductive material, which is prepared from the following raw materials in parts by weight:

1-2 parts of diatomite, 1-2 parts of glucose, 1-2 parts of sodium silicate, 1-2 parts of zinc oxide, 1-2 parts of lithium bentonite, 1-2 parts of silicon carbide, dodecylsulfonic acid 2-3 parts of sodium, 2-3 parts of magnesium hydroxide, 2-3 parts of barium stearate, 3-4 parts of silver nitrate solution, 3-4 parts of glass fiber, 6-8 parts of glyceryl tristearate, poly 6-8 parts of ethylene glycol diacrylate, 8-10 parts of chitosan, 10-12 parts of epoxy resin, 15-25 parts of chlorinated butadiene, 40-60 parts of graphite;

Preferably, the diatomite, zinc oxide, lithium bentonite, silicon carbide, sodium dodecylsulfonate, magnesium hydroxide, barium stearate and graphite have a particle diameter of 200 meshes; the chitosan The particle diameter of the glass fiber is 100-200nm; the diameter of the glass fiber is 10-20um, and the length is 50-100um; the modulus of the sodium water glass is 2; the concentration of the silver nitrate solution is 1M.

Preferably, the preparation method of the conductive material comprises the following steps:

1) Take each raw material according to the weight part for later use;

2) Take sodium dodecyl sulfonate, polyethylene glycol diacrylate, epoxy resin, chlorinated butadiene and graphite, mix and stir evenly, then import into a twin-screw extruder, and extrude into a molten state , and then extruded and cooled to pelletize to obtain material A;

3) Put diatomaceous earth, zinc oxide, lithium-based bentonite, silicon carbide, magnesium hydroxide and barium stearate into the mixer in sequence, and stir at 300 rpm for 10 minutes to obtain material B;

4) Mix silver nitrate solution and chitosan, stir at 100 rpm for 15 minutes, and then dry at 70°C to obtain material C;

5) Put material A, material B, material C, glucose, sodium silicate, glass fiber and glyceryl tristearate into the centrifuge in turn, and centrifuge at 1000 rpm for 5 minutes. After mixing evenly, enter the twin-screw It is extruded into a molten state by an extruder, then extruded into an injection molding machine, and finally obtained by injection molding.

The beneficial effects obtained by the present invention mainly include the following aspects:

The graphite conductive material prepared by the present invention is separated by plastics and does not agglomerate with each other, and has good electrical conductivity; the present invention combines nano-chitosan with silver ions to improve electrical conduction, antibacterial, anti-ultraviolet, antistatic and other properties; appropriate amount of silicon carbide is added, The mechanical properties of the material are greatly improved; the sodium water glass improves the corrosion resistance of the material; while the conductive material of the present invention maintains good electrical conductivity, it also has good mechanical properties and corrosion resistance, and is simple to prepare. The cost is low and there is good application prospect.

detailed description

In order to enable those skilled in the art to better understand the technical solutions in the application, the following will describe the present invention more clearly and completely in conjunction with the specific embodiments of the application. Obviously, the described embodiments are only part of the implementation of the application. example, not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

A corrosion-resistant conductive material, which is prepared from the following raw materials in parts by weight:

1 part of diatomaceous earth, 1 part of glucose, 1 part of sodium silicate, 1 part of zinc oxide, 1 part of lithium bentonite, 1 part of silicon carbide, 2 parts of sodium lauryl sulfonate, 2 parts of magnesium hydroxide, stearin 2 parts of barium acid, 3 parts of silver nitrate solution, 3 parts of glass fiber, 6 parts of glyceryl tristearate, 6 parts of polyethylene glycol diacrylate, 8 parts of chitosan, 10 parts of epoxy resin, butyl chloride 15 parts of diene, 40 parts of graphite;

Wherein, the particle diameter of described diatomite, zinc oxide, lithium bentonite, silicon carbide, sodium dodecyl sulfonate, magnesium hydroxide, barium stearate and graphite is 200 orders; The particle diameter is 200nm; the diameter of the glass fiber is 10um and the length is 50um; the modulus of the sodium water glass is 2; the concentration of the silver nitrate solution is 1M.

The preparation method of described conductive material comprises the following steps:

1) Take each raw material according to the weight part for later use;

2) Take sodium dodecyl sulfonate, polyethylene glycol diacrylate, epoxy resin, chlorinated butadiene and graphite, mix and stir evenly, then import into a twin-screw extruder, and extrude into a molten state , and then extruded and cooled to pelletize to obtain material A;

3) Put diatomaceous earth, zinc oxide, lithium-based bentonite, silicon carbide, magnesium hydroxide and barium stearate into the mixer in sequence, and stir at 300 rpm for 10 minutes to obtain material B;

4) Mix silver nitrate solution and chitosan, stir at 100 rpm for 15 minutes, and then dry at 70°C to obtain material C;

5) Put material A, material B, material C, glucose, sodium silicate, glass fiber and glyceryl tristearate into the centrifuge in turn, and centrifuge at 1000 rpm for 5 minutes. After mixing evenly, enter the twin-screw It is extruded into a molten state by an extruder, then extruded into an injection molding machine, and finally obtained by injection molding.

Example 2

A corrosion-resistant conductive material, which is prepared from the following raw materials in parts by weight:

2 parts of diatomite, 2 parts of glucose, 2 parts of sodium silicate, 2 parts of zinc oxide, 2 parts of lithium bentonite, 2 parts of silicon carbide, 3 parts of sodium lauryl sulfonate, 3 parts of magnesium hydroxide, stearin 3 parts of barium acid, 4 parts of silver nitrate solution, 4 parts of glass fiber, 8 parts of glyceryl tristearate, 8 parts of polyethylene glycol diacrylate, 10 parts of chitosan, 12 parts of epoxy resin, butyl chloride 25 parts of diene, 60 parts of graphite;

Wherein, the particle diameter of described diatomite, zinc oxide, lithium bentonite, silicon carbide, sodium dodecyl sulfonate, magnesium hydroxide, barium stearate and graphite is 200 orders; The particle diameter is 100nm; the diameter of the glass fiber is 20um and the length is 100um; the modulus of the sodium water glass is 2; the concentration of the silver nitrate solution is 1M.

The preparation method of described conductive material comprises the following steps:

1) Take each raw material according to the weight part for later use;

2) Take sodium dodecyl sulfonate, polyethylene glycol diacrylate, epoxy resin, chlorinated butadiene and graphite, mix and stir evenly, then import into a twin-screw extruder, and extrude into a molten state , and then extruded and cooled to pelletize to obtain material A;

3) Put diatomaceous earth, zinc oxide, lithium-based bentonite, silicon carbide, magnesium hydroxide and barium stearate into the mixer in sequence, and stir at 300 rpm for 10 minutes to obtain material B;

4) Mix silver nitrate solution and chitosan, stir at 100 rpm for 15 minutes, and then dry at 70°C to obtain material C;

5) Put material A, material B, material C, glucose, sodium silicate, glass fiber and glyceryl tristearate into the centrifuge in turn, and centrifuge at 1000 rpm for 5 minutes. After mixing evenly, enter the twin-screw It is extruded into a molten state by an extruder, then extruded into an injection molding machine, and finally obtained by injection molding.

Example 3

The performance parameter test of the conductive material prepared by the present invention:

1. The volume resistivity of the conductive material in Example 1 is 0.029Ω·cm, the tensile strength (N/mm ² ) is 17.3, the elongation at break is 149%, and the thermal stability time (min) at 200°C is greater than 12h.

The volume resistivity of the conductive clip of Example 2 is 0.033Ω·cm, the tensile strength (N/mm ² ) is 16.9, the elongation at break is 151%, and the thermal stability time (min) at 200°C is greater than 12h.

2. Anti-corrosion performance test: soak the test material in 10% sodium chloride solution for 50 days, and measure the main performance parameters, see Table 1: The test material is soaked in 10% sulfuric acid solution for 50 days, and the main performance parameters Determination, see Table 2.

Table 1

group Tensile Strength Retention Rate (%) Elongation at break (%) Example 1 99.6 98.1 Example 2 99.7 97.9

Table 2

group Tensile Strength Retention Rate (%) Elongation retention at break (%) Example 1 97.9 98.3 Example 2 98.1 98.6

Finally, it should be noted that the above examples are only some specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All deformations that can be directly derived or associated by those skilled in the art from the content disclosed in the present invention should be considered as the protection scope of the present invention.

Claims (3)

1. a corrosion resistant electro-conductive material, it is prepared by the raw material of following weight part and obtains:

Diatomite 1-2 part, glucose 1-2 part, sodium silicate 1-2 part, zinc oxide 1-2 part, lithium bentonite 1-2 part, silicon carbide 1-2 part, sodium laurylsulfonate 2-3 part, magnesium hydroxide 2-3 part, barium stearate 2-3 part, silver nitrate solution 3-4 part, glass fibre 3-4 part, Tristearoylglycerol 6-8 part, polyethyleneglycol diacrylate 6-8 part, chitosan 8-10 part, epoxy resin 10-12 part, chlorination divinyl 15-25 part, graphite 40-60 part.

2. electro-conductive material according to claim 1, is characterized in that, preferably, described diatomite, zinc oxide, lithium bentonite, silicon carbide, sodium laurylsulfonate, magnesium hydroxide, the particle diameter of barium stearate and graphite is 200 orders; The particle diameter of described chitosan is 100-200nm; The diameter of described glass fibre is 10-20um, and length is 50-100um; The modulus of described sodium silicate is 2; The concentration of described silver nitrate solution is 1M.

3. electro-conductive material according to claim 1, is characterized in that, preferably, the preparation method of described electro-conductive material comprises the steps:

1) each raw material for standby is got according to weight part;

2) get sodium laurylsulfonate, polyethyleneglycol diacrylate, epoxy resin, chlorination divinyl and graphite, mixing and stirring, then import in twin screw extruder, be squeezed into molten state, then extrude and cooling and dicing, obtain material A;

3) by diatomite, zinc oxide, lithium bentonite, silicon carbide, magnesium hydroxide and barium stearate are put in stirrer successively, and 300 turns/min stirs 10min, obtains material B;

4) by silver nitrate solution and chitosan mixing, 100 turns/min stirs 15min, is then placed in 70 DEG C of oven dry, obtains material C;

5) by material A, material B, material C, glucose, sodium silicate, glass fibre and Tristearoylglycerol are put in whizzer successively, 1000 turns/min centrifugal mixer 5 minutes, after mixing, enters twin screw extruder and is squeezed into molten state, then be expressed in injection moulding machine, last injection moulding and get final product.