Heat-resistant polyvinyl chloride material, preparation method thereof and wire

A polyvinyl chloride and polyvinyl chloride resin technology, applied in circuits, electrical components, plastic/resin/wax insulators, etc., can solve the problems of high cost, limited wide application, poor low temperature brittleness, etc. Cost, effect of good mechanical and physical properties

Active Publication Date: 2015-07-29
FUTONG GROUP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The heat-resistant polyvinyl chloride cable material provided by the prior art has excellent mechanical strength, thermal stability, weather resistance, aging resistance, wear resistance and other properties, and has a good flame retardant effect. After the flame disappears, the flame can be extinguished

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0085] The invention provides a method for preparing a heat-resistant polyvinyl chloride material, comprising:

[0086] Polyvinyl chloride resin powder, trioctyl trimellitate, filler, Ca-Zn composite stabilizer, ethylene-n-butyl acrylate-hydroxyl elastomer and flame retardant are mixed to obtain a mixture; the filler includes carbonic acid Calcium and kaolin, the flame retardant includes Sb 2 o 3 and / or Sb 2 o 3 Alternatives, the Sb 2 o 3 The substitutes are in parts by weight, including: 45 to 46 parts of silicon dioxide; 30 to 35 parts of magnesium oxide; 8 to 9 parts of montmorillonite; 2 to 2.5 parts of zinc oxide; 5.5 parts of aluminum oxide; 1 to 1.5 parts of copper oxide;

[0087] The mixture is mixed to obtain an intermediate product;

[0088] The intermediate product is vulcanized to obtain a heat-resistant polyvinyl chloride material.

[0089] The invention mixes polyvinyl chloride resin powder, trioctyl trimellitate, filler, Ca-Zn composite stabilizer, ethyl...

Embodiment 1

[0113] The raw material ratio of preparing heat-resistant PVC material is:

[0114] 100g of PVC resin powder;

[0115] 50g of TOTM;

[0116] 20g of ground calcium carbonate;

[0117] 5g of kaolin;

[0118] The Ca-Zn composite stabilizer of 5g;

[0119] 2g of Sb 2 o 3 ;

[0120] 1g of Sb 2 o 3 substitution;

[0121] 7g of HP441.

[0122] The above-mentioned raw materials were mixed uniformly under stirring conditions to obtain a mixture; the mixture was mixed for 15 minutes at 160° C. in a HZ-7015 rubber mixer provided by Shanghai Hengzhun Instrument Technology Co., Ltd. to obtain an intermediate product; The intermediate product is vulcanized at 170°C in a HZ-7014 model vulcanizer provided by Shanghai Hengzhun Instrument Technology Co., Ltd. to obtain a heat-resistant PVC material. The preheating time in the vulcanization process is 5 minutes, and the pressurization time is 5 minutes. 5 minutes, pressurization pressure is 20MPa, cooling time is 5 minutes.

[0123] ...

Embodiment 2

[0126] The heat-resistant PVC material was prepared according to the method described in Example 1. The difference from Example 1 was that 5 g of HP441 was used to replace 7 g of HP441 in Example 1.

[0127] According to the method described in the above technical solution, the density, thermal stability, volume resistivity, low-temperature brittleness, oxygen index and hardness of the heat-resistant PVC material prepared in Example 2 of the present invention were tested. The test results are shown in Table 1.

[0128] The cost of the heat-resistant PVC material prepared in Example 2 of the present invention is 10.23 yuan / Kg.

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Abstract

The invention provides a heat-resistant polyvinyl chloride material which is prepared from the following raw materials: 100 parts of polyvinyl chloride resin powder, 45-52 parts of trioctyl trimellitate and 22-31 parts of a filling agent which comprises calcium carbonate and kaoline, 3-8 parts of Ca-Zn composite stabilizer, 4-7 parts of ethylene-n-butyl acrylate-hydroxy elastomer and 1.5-5 parts of a flame retardant; the flame retardant comprises Sb2O3 and/or an Sb2O4 substitute. The heat-resistant polyvinyl chloride material provided by the invention is higher in low-temperature fragility and lower in cost; furthermore, the heat-resistant polyvinyl chloride material is higher in mechanical physical performance and heat stability. An experiment result shows that the low-temperature fragility of the heat-resistant polyvinyl chloride material is -11 DEG C to -21 DEG C. The invention further provides a preparation method of the heat-resistant polyvinyl chloride material and a wire.

Description

technical field [0001] The invention relates to the technical field of polyvinyl chloride materials, in particular to a heat-resistant polyvinyl chloride material and electric wires. Background technique [0002] The insulating material used in domestic wires is generally heat-resistant polyvinyl chloride (PVC) material. As the insulating material of wires, there are high requirements for the thermal stability of heat-resistant PVC materials. At the same time, heat-resistant PVC materials must also meet the insulation properties. Requirements, the volume resistivity at 30°C must reach 10 12 Ω·cm or more. [0003] The Chinese patent application number 201410284164.1 discloses a heat-resistant 105°C polyvinyl chloride cable material and its preparation method, which is made of the following raw materials in parts by weight: 100 parts of S-70 polyvinyl chloride resin, 15 to 20 parts of Bisphenol A polycarbonate, 8-12 parts of chlorinated polyethylene, 25-35 parts of trioctyl ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08K13/02C08K5/12C08K3/26C08K3/34C08K3/22C08K3/36H01B3/44
CPCC08K2201/014C08L27/06C08L2201/08C08L2203/202H01B3/443C08L23/0869C08K13/02C08K5/12C08K2003/265C08K3/346C08K3/2279C08K3/36C08K2003/222C08K2003/2296C08K2003/2227C08K2003/2248
Inventor 闫孝敏于友姬李国昌潘旭东吴震辰
Owner FUTONG GROUP CO LTD
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