CPVC (Chlorinated Polyvinyl Chloride) composite with better impact resistance

Abstract

The invention relates to a CPVC composite with better impact resistance, and belongs to the field of high molecular materials. The CPVC composite is characterized by being prepared from the following raw materials in parts by mass: 100 parts of CPVC resin, 3-8 parts of stabilizer, 1.2-3.2 parts of complex lubricating agent, 6-10 parts of complex toughened modifier, 0.5-2.0 parts of synergistic toughened modifier and 3-10 parts of filler. According to the invention, a complex impact resistant modifier and a synergistic toughened modifier are used for performing impact resistant modification on the CPVC composite, so that the impact resistance of the CPVC material is improved greatly, and the CPVC composite has higher tensile strength and better processability; meanwhile, production price of products is lowered, so that the product has higher market competitiveness.

Description

technical field [0001] The invention relates to a CPVC composition with good impact resistance, which belongs to the field of polymer materials. Background technique [0002] Chlorinated polyvinyl chloride resin (CPVC) is obtained by chlorination and modification of polyvinyl chloride resin (PVC), and its chlorine content is generally 61%-73%. Therefore, in terms of physical and mechanical properties, heat resistance, weather resistance, corrosion resistance, flame retardant and self-extinguishing properties, it has been greatly improved compared with PVC, and it is a material with excellent performance. It is widely used in the manufacture of various pipes, plates, profiles, sheets, injection molded parts, foam materials, anti-corrosion coatings, etc., and has a large market prospect. However, since the brittleness of PVC resin increases with the increase of chlorine content after chlorination, impact modification must be carried out during processing of CPVC resin. [00...

AI Technical Summary

Problems solved by technology

However, since the brittleness of PVC resin increases with the increase of chlorine content after chlorination, impact modification must be carried out when processing CPVC resin.

[0003] At present, the toughening modifiers used in CPVC are mainly acrylonitrile-butadiene-styrene copolymer (ABS) resin, methacrylate-butadiene-styrene copolymer (MBS) resin, chlorinated polystyrene Ethylene (CPE), acrylic polymer (ACR), silicone-acrylic elastomer, a large amount of ABS, MBS, CPE, ACR modifiers can improve the toughness of CPVC materials, making CPVC materials more difficult to process, and It greatly reduces the tensile strength of CPVC materials, while silicone-acrylic elastomers are not produced in China and are expensive

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