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Chemical solvent-resistant conduction type PC/ABS composite material

A composite, conductive technology

Inactive Publication Date: 2019-01-25
合肥卓汇新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In daily life and production, many materials are prone to static electricity during the production process, causing vicious accidents such as vacuuming, electric shock, and even explosion after sparks are generated. The commonly used plastics are usually better insulating materials and have a high volume. Resistivity and surface resistivity make it easy to accumulate static electricity during application, which affects the appearance and hygiene of the product, damages the performance of the product and even causes serious accidents. Usually, the method for obtaining antistatic properties of thermoplastic resins generally adopts this method. Signature conductive polymers or conductive fillers are filled with thermoplastic resins, or resins are blended with organic antistatic agents, or antistatic coatings are used for molded parts or films. In the prior art, the block class is permanently The antistatic agent is used in the PC / ABS system. Although the antistatic effect has been improved, due to the excessive addition, thermal oxygen aging and degradation of the PC material have occurred during the processing process, resulting in a significant decline in material performance. Application No. 201610685328.0 discloses a preparation method of a new type of conductive PC / ABS material, using PC resin, barium titanate ceramic powder and siloxane coupling agent to prepare a conductive matrix, and then blending with ABS to prepare a bicontinuous structure to reduce titanium The amount of barium titanate ceramic powder is reduced, thereby reducing the cost and reducing the adverse effect of barium titanate ceramic powder on physical properties. In actual use, although the impact on mechanical strength is reduced, with the improvement of product requirements, it has been unable to meet market demand. , when used as a decorative board, it is necessary to spray a finishing layer on its surface. The chemical solvent in the finishing material is highly corrosive, and it is easy to affect the mechanical properties of the product.

Method used

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  • Chemical solvent-resistant conduction type PC/ABS composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A conductive PC / ABS composite material resistant to chemical solvents, comprising the following raw materials in parts by weight: 62 parts of PC resin, 31 parts of ABS resin, 18 parts of modified o-cresol novolac epoxy resin, 2.9 parts of barium titanate ceramic powder, 1.2 parts of imide salt, 0.7 part of antioxidant, 0.2 part of initiator, 0.2 part of zinc stearate;

[0022] The melting temperature of the PC resin is 225°C, and the melt flow rate is 40g / 10min;

[0023] The ABS resin is an acrylonitrile-butadiene-styrene copolymer, and its relative molecular weight is 160000-200000g / mol; wherein the weight percentage of acrylonitrile monomer is 38%, and the weight ratio of butadiene monomer is 18% , the balance is styrene monomer;

[0024] The preparation method of modified o-cresol novolac epoxy resin is as follows: in parts by weight, take 70 parts of o-cresol novolac epoxy resin with a mass ratio content of easily saponifiable chlorine lower than 100 μg / g, 5 parts ...

Embodiment 2

[0034] A conductive PC / ABS composite material resistant to chemical solvents, comprising the following raw materials in parts by weight: 60 parts of PC resin, 34 parts of ABS resin, 16 parts of modified o-cresol novolac epoxy resin, 2.6 parts of barium titanate ceramic powder, 0.8 part of imide salt, 0.6 part of antioxidant, 0.3 part of initiator, 0.1 part of zinc stearate;

[0035] The melting temperature of the PC resin is 220°C, and the melt flow rate is 50g / 10min;

[0036] The ABS resin is an acrylonitrile-butadiene-styrene copolymer, and its relative molecular weight is 160000-200000g / mol; wherein the weight percentage of acrylonitrile monomer is 36%, and the weight ratio of butadiene monomer is 20% , the balance is styrene monomer;

[0037]The preparation method of modified o-cresol novolac epoxy resin is as follows: in parts by weight, take 75 parts of o-cresol novolac epoxy resin with a mass ratio content of easily saponifiable chlorine lower than 100 μg / g, 4 parts of...

Embodiment 3

[0047] A conductive PC / ABS composite material resistant to chemical solvents, comprising the following raw materials in parts by weight: 65 parts of PC resin, 28 parts of ABS resin, 20 parts of modified o-cresol novolac epoxy resin, 3.2 parts of barium titanate ceramic powder, 1.6 parts of imide salt, 0.8 part of antioxidant, 0.1 part of initiator, 0.3 part of zinc stearate;

[0048] The melting temperature of the PC resin is 230°C, and the melt flow rate is 30g / 10min;

[0049] The ABS resin is an acrylonitrile-butadiene-styrene copolymer, and its relative molecular weight is 160000-200000g / mol; wherein the weight percentage of acrylonitrile monomer is 40%, and the weight ratio of butadiene monomer is 15% , the balance is styrene monomer;

[0050] The preparation method of the modified o-cresol novolac epoxy resin is as follows: in parts by weight, take 65 parts of o-cresol novolac epoxy resin, 6 parts of C5 petroleum resin, and 1 6 parts, 6 parts of diisocyanate, after heat...

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Abstract

The invention belongs to the technical field of processing of a macromolecular material and particularly relates to a chemical solvent-resistant conduction type PC / ABS composite material. The chemicalsolvent-resistant conduction type PC / ABS composite material comprises the following raw materials in parts by weight: 60 to 65 parts of PC resin, 28 to 34 parts of ABS resin, 16 to 20 parts of modified o-cresol formaldehyde epoxy resin, 2.6 to 3.2 parts of barium titanate ceramic powder, 0.8 to 1.6 parts of imide salt, 0.6 to 0.8 part of antioxidant, 0.1 to 0.3 part of initiator and 0.1 to 0.3 part of zinc stearate. Compared with the prior art, the chemical solvent-resistant conduction type PC / ABS composite material has the following advantages: the prepared composite material has high conductivity; the modified o-cresol formaldehyde epoxy resin can effectively improve the chemical solvent resistance and the high-temperature resistance of the composite resin; and the o-cresol formaldehydeepoxy resin with specific properties is modified by using C5 petroleum resin, so that the processing property of the composite material is improved, the impact strength and the ageing resistance of the composite material can be guaranteed and the service life of the material is prolonged.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing, and in particular relates to a conductive PC / ABS composite material resistant to chemical solvents. Background technique [0002] In daily life and production, many materials are prone to static electricity during the production process, causing vicious accidents such as vacuuming, electric shock, and even explosion after sparks are generated. The commonly used plastics are usually better insulating materials and have a high volume. Resistivity and surface resistivity make it easy to accumulate static electricity during application, which affects the appearance and hygiene of the product, damages the performance of the product and even causes serious accidents. Usually, the method for obtaining antistatic properties of thermoplastic resins generally adopts this method. Signature conductive polymers or conductive fillers are filled with thermoplastic resins, or resins are blend...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L63/04C08L57/02C08K13/06C08K9/04C08K3/24C08K5/098C08K3/26C08K5/3415
CPCC08K2003/265C08K2201/011C08L69/00C08L2205/035C08L55/02C08L63/04C08L57/02C08K13/06C08K9/08C08K9/04C08K3/24C08K5/098C08K3/26C08K5/3415
Inventor 郭平
Owner 合肥卓汇新材料科技有限公司
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