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Cold-resistant compound modified plastic and preparation method thereof

A composite modification and cold-resistant technology, applied in the field of modified plastics, can solve the problems of poor nitrogen stability and narrow application range, and achieve the effects of stable performance, wide applicability and improved tensile properties.

Inactive Publication Date: 2017-05-24
QUANJIAO XIANGRUI PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyvinyl chloride is a thermoplastic resin polymerized under the action of an initiator. It has strong flame retardancy and is cheap. It can be made into a variety of hard, soft and transparent products, and can exhibit different physical properties and mechanics. Performance, so it is widely used, nitrogen stability is poor, so its application range is narrow, the use temperature is between -15-55 °C, and in practical applications, higher requirements are put forward for the cold resistance of plastic products. At the same time, Service life, corrosion resistance and strength are also normal requirements for plastic products, so reinforcement is required

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A cold-resistant composite modified plastic, the raw materials of which include by weight: 38 parts of polyvinyl chloride, 22 parts of soluble polytetrafluoroethylene, 18 parts of styrene-butadiene-styrene SBS thermoplastic elastomer, and 12 parts of magnesium oxide , 2 parts of copper oxide, 4 parts of polyphenylene sulfide, 6 parts of fluorene methoxycarbonyl succinimide, 3 parts of diethyl carbonate, 4 parts of tribasic lead sulfate, 1.2 parts of potassium pyrophosphate, 0.8 parts of speed mites parts, 0.4 parts of silver sulfate, 5 parts of n-butyl acrylate, 2 parts of linear low density polyethylene grafted maleic anhydride, 0.03 parts of nitroammonium, and 2.4 parts of epoxidized soybean oil.

[0015] Wherein, the degree of polymerization of the polyvinyl chloride is 1800, and the molecular weight of the soluble polytetrafluoroethylene is 4×10 7 -8×10 7 , the melt index of the styrene-butadiene-styrene SBS thermoplastic elastomer is 2.8 g / 10min; the fineness of t...

Embodiment 2

[0022] A cold-resistant composite modified plastic, the raw materials of which include by weight: 42 parts of polyvinyl chloride, 18 parts of soluble polytetrafluoroethylene, 20 parts of styrene-butadiene-styrene SBS thermoplastic elastomer, and 10 parts of magnesium oxide , 2 parts of copper oxide, 6 parts of polyphenylene sulfide, 4 parts of fluorene methoxycarbonyl succinimide, 5 parts of diethyl carbonate, 3 parts of tribasic lead sulfate, 1.2 parts of potassium pyrophosphate, 0.6 parts of speed mites parts, 0.3 parts of silver sulfate, 5 parts of n-butyl acrylate, 3 parts of linear low-density polyethylene grafted maleic anhydride, 0.02 parts of nitroammonium, and 1.8 parts of epoxidized soybean oil.

[0023] The preparation method is the same as in Example 1.

Embodiment 3

[0025] A cold-resistant composite modified plastic, the raw materials of which include by weight: 45 parts of polyvinyl chloride, 16 parts of soluble polytetrafluoroethylene, 24 parts of styrene-butadiene-styrene SBS thermoplastic elastomer, and 12 parts of magnesium oxide , 3 parts of copper oxide, 4 parts of polyphenylene sulfide, 6 parts of fluorene methoxycarbonyl succinimide, 3 parts of diethyl carbonate, 4 parts of tribasic lead sulfate, 0.8 parts of potassium pyrophosphate, 0.9 parts of speed mites parts, 0.1 part of silver sulfate, 7 parts of n-butyl acrylate, 4 parts of linear low density polyethylene grafted maleic anhydride, 0.04 part of nitroammonium, and 2 parts of epoxidized soybean oil.

[0026] The preparation method is the same as in Example 1.

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Abstract

The invention belongs to the technical field of modified plastics and particularly relates to a cold-resistant compound modified plastic and a preparation method of the cold-resistant compound modified plastic. The cold-resistant compound modified plastic comprises the raw materials of polyvinyl chloride, soluble polytetrafluoroethylene, styrene-butadiene-styrene (SBS) thermoplastic elastomer, magnesium oxide, copper oxide, polyphenylene sulfide, N-(9-fluorenylmethoxycarbonyloxy) succinimide, diethyl carbonate, lead sulfate tribasic, potassium permanganate, pyridaben, silver sulfate, n-butyl acrylate, linear low density polyethylene grafted maleic anhydride, ammonium nitrate, and epoxidized soybean oil. Compared with the prior art, the cold-resistant compound modified plastic has the following advantages that the magnesium oxide and the copper oxide are used as fillers, and the various raw materials are compounded and modified, so that the prepared plastic keeps higher properties of high temperature resistance and wear resistance, improves the tensile property, is anti-ageing, has no crack when bent at the temperature of minus 42 DEG C, is stable in properties, and is wide in applicability.

Description

technical field [0001] The invention belongs to the technical field of modified plastics, and in particular relates to a cold-resistant composite modified plastic and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a thermoplastic resin polymerized under the action of an initiator. It has strong flame retardancy and is cheap. It can be made into a variety of hard, soft and transparent products, showing different physical properties and mechanics. Therefore, it is widely used, and the nitrogen stability is poor, so its application range is narrow, and the operating temperature is between -15-55 °C. In practical applications, higher requirements are placed on the cold resistance of plastic products. At the same time, Longevity, corrosion resistance and strength are also common requirements for plastic products and therefore require reinforcement. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a cold-res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L27/18C08L53/02C08L81/02C08L51/06C08L91/00C08K13/02C08K3/22
CPCC08L27/06C08K2201/003C08K2201/011C08L2201/08C08L2205/035C08L2207/04C08L27/18C08L53/02C08L81/02C08L51/06C08L91/00C08K13/02C08K2003/222C08K3/22
Inventor 刘仕明
Owner QUANJIAO XIANGRUI PLASTIC