Low temperature-resistant high-strength PVC (Polyvinyl Chloride) tube

Abstract

The invention discloses a low temperature resistant high-strength PVC (Polyvinyl Chloride) tube which comprises the following components in parts by weight: 10-15 parts of fire retardant, 50-60 parts of SG-5 type PVC, 20-40 parts of SG-3 type PVC, 8-18 parts of powdered butyronitrile, 3-5 parts of stabilizer, 55-15 parts of light calcium carbonate, 1-4 parts of lubricant, 5-1.5 parts of plasticizer and 5-20 parts of pigment. The low temperature resistant high-strength PVC tube has the beneficial effects of remarkably improving the performance of the tube and being high in strength, especially suitable for the low temperature environment and being low in cost.

Description

technical field [0001] The invention relates to a high-strength PVC pipe material resistant to low temperature. Background technique [0002] Polyvinyl chloride pipes account for the highest proportion in various plastic pipe applications due to their low price, convenient processing and installation, and excellent use effects. Among them, rigid polyvinyl chloride UPVC is the most used. However, UPVC has a weakness, namely high brittleness and weak impact resistance. At present, CPE or ACR is generally used as PVC impact modifier. Although various impact modifiers have different shear increasing mechanisms due to their different chemical structures, what they all have in common is that they all need to have a low glass transition temperature and have a certain compatibility with PVC. However, it cannot be fully compatible, and must form a second phase with an appropriate shape, forming a two-phase coexistence structure with PVC. In addition, it is necessary to have a good ...

AI Technical Summary

Problems solved by technology

But it is not completely compatible, it must form a second phase with proper shape, and form a two-phase coexistence structure with PVC