PVC (polyvinyl chloride) profile for anti-cracking impact-resistant back net reinforcing ribs and treatment technique thereof

Abstract

The invention discloses a PVC (polyvinyl chloride) profile for anti-cracking impact-resistant back net reinforcing ribs, which comprises a PVC substrate and a reinforcing agent. The reinforcing agent is composed of the following components in parts by weight: 5-10 parts of high-efficiency impact modifier based on acrylic ester polymer, 0.5-1 part of organotin stabilizing agent, 1-1.5 parts of light calcium carbonate, 0-0.5 part of active calcium, 0.05-0.1 part of toughener, 3 parts of chlorinated polyethylene, 0.08 part of oxidized wax, 0.3 part of polyethylene wax, 0.6-0.9 part of organic wax and 0.1-0.3 part of modifier. Ethyl silicate and heat-resistant pigment and filler are added into the modifier. The heat-resistant pigment and filler comprises nano smectite silicate and blocking functional filler in a mass ratio of 1.5:1:1. Compared with the prior art, the PVC profile for anti-cracking impact-resistant back net reinforcing ribs effectively reduces the problem of cracking of the reinforcing ribs due to long-time usage, and enhances the cracking resistance and impact resistance of the reinforcing ribs.

Description

technical field [0001] The invention belongs to the processing field of PVC profiles, in particular to a PVC profile for crack-resistant and impact-resistant back net reinforcing ribs and a treatment process thereof. Background technique [0002] The application of PVC began in the 1930s and has a history of more than 70 years. It is a product with relatively mature production technology, experimental testing, standardization, design and construction specifications; due to its good cost performance and excellent physical machinery Performance, has been widely used in engineering, accounting for about 62% of the entire plastic pipe market. [0003] The wide application of PVC products benefits from its good mechanical properties, as well as its economy and environmental protection; the short-term strength of PVC is as high as 50MPa at 20°C; the long-term hydrostatic strength of 50 years is not less than 25MPa (MRS has reached 25MPa); however, PVC-U has insufficient toughness...

AI Technical Summary

Problems solved by technology

[0003] The wide application of PVC products benefits from its good mechanical properties, as well as its economy and environmental protection; the short-term strength of PVC is as high as 50MPa at 20°C; the long-term hydrostatic strength of 50 years is not less than 25MPa (MRS has reached 25MPa); however, PVC-U has insufficient toughness, that is, high brittleness, poor impact resistance and crack resistance, and is prone to brittle failure when it is subjected to strong external impact; When the reinforcing rib is used, if it receives a large impact, it is very easy to cause cracking and damage