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Modified PVC material for wires and preparation method of modified PVC material

A PVC material and modified technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of unstable anti-swing performance, poor dispersion of nano-calcium carbonate, general dispersion, etc., to achieve fatigue resistance Increase, improve mechanical properties, ensure the effect of dispersion uniformity

Inactive Publication Date: 2019-11-22
苏州凯佰乐电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As for the anti-swing performance, the material is usually modified. In the existing modification methods, fillers are usually added to the PVC material to increase the performance of PVC. Among them, the more effective method is to add nano-calcium carbonate. Physical mixing can enhance the toughness of PVC. However, due to the poor dispersion of nano-calcium carbonate in PVC materials, even if modified materials are used, the dispersion is still average, resulting in insufficient stability of the anti-swing performance of the prepared product. toughness

Method used

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  • Modified PVC material for wires and preparation method of modified PVC material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] S1: Take 50 parts of nano silicon dioxide and mix it with deionized water, add 2 parts of polymerizable carbon-carbon double bond coupling agent at the same time, heat and stir for 30min, the temperature is 70-80°C;

[0025] S2: Get 50 parts of nano-calcium carbonate, add 10 parts of mixed solvent methyl methacrylate, 15 parts of emulsifier, 10 parts of ethyl acrylate, stir so that the outer wrapping mixed solvent particle of nano-calcium carbonate;

[0026] S3: Take 300 parts of PVC matrix and 100 parts of ABS rubber for polymerization reaction, and evenly disperse the mixture of the two in water with a dispersant. During the reaction, add the modified nano-silica prepared in S1 to obtain a modified polymer Vinyl product A;

[0027] S4: Take 30 parts of microcrystalline muscovite powder, after desorbing water, add a coupling agent, and mix with a high-speed mixer to prepare modified muscovite powder;

[0028] S5: Take the modified polyethylene product A prepared in S3...

Embodiment 2

[0030] The invention proposes a modified PVC material for electric wires, including 300-800 parts of PVC matrix, 100-200 parts of ABS rubber, 50-100 parts of nano-silica, 50-100 parts of nano-calcium carbonate, and 30 parts of microcrystalline muscovite -50 parts, 2-10 parts of plasticizer, 2-10 parts of stabilizer, 2-10 parts of lubricant, 2-10 parts of polymerizable carbon-carbon double bond coupling agent.

[0031] S1: Take 80 parts of nano silicon dioxide and mix it with deionized water, add 2 parts of polymerizable carbon-carbon double bond coupling agent at the same time, heat and stir for 30min, the temperature is 70-80°C;

[0032] S2: Get 80 parts of nano-calcium carbonate, add 1 part of mixed solvent methyl methacrylate, 15 parts of emulsifier, 10 parts of ethyl acrylate, stir so that the nano-calcium carbonate is wrapped with mixed solvent particles;

[0033] S3: Take 500 parts of PVC matrix and 150 parts of ABS rubber for polymerization reaction, and evenly disperse...

Embodiment 3

[0037] S1: Take 50 parts of nano-silica and mix it with deionized water, add 7 parts of a polymerizable carbon-carbon double bond coupling agent at the same time, heat and stir for 30 minutes, and the temperature is 70-80 ° C;

[0038] S2: Get 100 parts of nano-calcium carbonate, add 10 parts of mixed solvent methyl methacrylate, 15 parts of emulsifier, 10 parts of ethyl acrylate, stir so that the outer wrapping mixed solvent particle of nano-calcium carbonate;

[0039] S3: Take 800 parts of PVC matrix and 200 parts of ABS rubber for polymerization reaction, and evenly disperse the mixture of the two in water with a dispersant. During the reaction, add the modified nano-silica prepared in S1 to obtain a modified polymer Vinyl product A;

[0040] S4: Take 50 parts of microcrystalline muscovite powder, after desorbing water, add a coupling agent, and mix with a high-speed mixer to prepare modified muscovite powder;

[0041] S5: Take the modified polyethylene product A prepared ...

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Abstract

The invention provides a modified PVC material for an electric wire. The PVC material comprises 300-800 parts of a PVC matrix, 100-200 parts of ABS rubber, 50-100 parts of nano silicon dioxide, 50-100parts of nano calcium carbonate, 30-50 parts of microcrystalline white mica, 2-10 parts of a plasticizer, 2-10 parts of a stabilizer, 2-10 parts of a lubricant and 2-10 parts of a polymerizable carbon-carbon double bond coupling agent. According to the material, ABS and PVC are mixed, the prepared material is of a sea-island structure and a nearly continuous phase structure, shear yield and cavitation are achieved, and the fatigue resistance of a final product is improved; the chemical forms of the nano silicon dioxide and the PVC are respectively modified, so the problem of uneven dispersionof calcium carbonate is solved through cooperation with modification in a physical form and modification in a chemical form of nano calcium carbonate, the compatibility of the added microcrystallinewhite mica with PVC and ABS materials is improved after modification, the dispersion uniformity is guaranteed, and the mechanical property of the material is improved.

Description

technical field [0001] The invention relates to the field of new materials, in particular to a modified PVC material for electric wires and a preparation method thereof. Background technique [0002] In the existing technology and products, the sheath of the wire and cable is usually made of modified PVC material, and the required performance is different due to the different uses of the wire. In actual production, some cables are used during use. In the dynamic state, the anti-swing performance of the wire is stronger. [0003] As for the anti-swing performance, the material is usually modified. In the existing modification methods, fillers are usually added to the PVC material to increase the performance of PVC. Among them, the more effective method is to add nano-calcium carbonate. Physical mixing can enhance the toughness of PVC. However, due to the poor dispersion of nano-calcium carbonate in PVC materials, even if modified materials are used, the dispersion is still a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L55/02C08L91/06C08K13/06C08K9/06C08K9/10C08K3/36C08K3/26C08K3/34C08K5/521H01B3/44
CPCC08K2003/265C08K2201/011C08L27/06C08L2203/202C08L2205/03H01B3/443C08L55/02C08L91/06C08K13/06C08K9/06C08K9/10C08K3/36C08K3/26C08K3/34C08K5/521
Inventor 张庭华
Owner 苏州凯佰乐电子有限公司
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