High-performance modified plastic

Abstract

The invention discloses high-performance modified plastic. The high-performance modified plastic is prepared from the following components: polyvinyl chloride, polypropylene, high-alumina bauxite, aluminum powder, calcium hexaluminate, kieselguhr, a dispersant, heat stabilizer and a plasticizer. The high-performance modified plastic has good mechanical property, tensile strength, impact resistance and particularly notch impact resistance; by adding modified high-alumina bauxite in the plastic, the heat resistance and the ageing resistance of the plastic are mainly improved; by utilizing processed calcium hexaluminate, the weather resistance of the plastic is further improved, and the adaptability of the plastic under different environments is improved; a production process is simple, the cost is low, and the prepared plastic has excellent heat stability.

Description

Technical field [0001] The invention relates to the field of plastic production, in particular to a high-performance modified plastic. Background technique [0002] Generally, polyvinyl chloride plastics on the market have a low degree of branching, a relative density of about 1.4, a glass transition temperature of 77~90℃, and a decomposition at about 170℃. The stability to light and heat is poor. Above 100℃ or under long-term sunlight Exposure to the sun will decompose to produce hydrogen chloride, which will further autocatalyze and decompose, causing discoloration, rapid decline in physical and mechanical properties, greater brittleness and poor impact resistance. These shortcomings restrict its application. Summary of the invention [0003] The purpose of the present invention is to provide a high-performance modified plastic, which is achieved through the following technical solutions: [0004] A high-performance modified plastic made of the following components in parts by we...

AI Technical Summary

Problems solved by technology

[0002] General polyvinyl chloride plastics on the market have a small degree of branching, a relative density of about 1.4, a glass transition temperature of 77~90°C, and begin to decompose at about 170°C. They have poor stability to light and heat. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration, rapid decline in physical and mechanical properties, greater brittleness and poor impact resistance, etc. These shortcomings limit its application.

Images