Beta PP-R tubular product, and manufacturing method thereof

Abstract

The invention discloses a beta PP-R tubular product. The beta PP-R tubular product comprises PP-R; PP-R comprises, by mass, 40 to 70% of Beta-PPR, 2 to 4 % of a color master, 0.7 to 2% of nano silicon carbide, 0.5 to 2% of a long-acting oxygen inhibitor, and 1 to 3% of a nucleating agent. The invention also relates to a manufacturing method of the beta PP-R tubular product. The manufacturing method is simple; production efficiency is high; structural strength and performance of obtained products are improved greatly; service life is prolonged significantly; the beta PP-R tubular product possesses super high-temperature resistance, high compression strength, excellent high-temperature creep resistance, low linear expansion coefficient, and high heat distortion temperature; hot-melt conjunction of the beta PP-R tubular product with pipe fittings is convenient; installation is simple; and artificial cost is reduced greatly.

Description

technical field [0001] The invention is a βPP-R pipe, and also relates to a method for manufacturing the βPP-R pipe. Background technique [0002] At present, the most common pipe is PP-R pipe, which has great advantages in performance and is deeply loved by the people. However, the existing PP-R pipes on the market still have deficiencies and need to be improved. For example, the resistance to ring stress is not high, which affects the service life, the thermal deformation temperature is not high, and it does not have high temperature creep resistance. At the same time, the thermal expansion coefficient is large, which causes deformation during installation and use and affects the appearance. In addition, before the inflection point in the production process The pipe is plastic failure, followed by brittle failure after the inflection point, which leads to an increase in production costs and needs to be improved. [0003] It can be seen from the above that it is imminent ...

AI Technical Summary

Problems solved by technology

However, PP-R pipes on the existing market still have deficiencies and need to be improved

For example, the resistance to ring stress is not high, which affects the service life, the thermal deformation temperature is not high, and it does not have high temperature creep resistance. At the same time, the thermal expansion coefficient is large, which causes deformation during installation and use and affects the appearance. In addition, before the inflection point in the production process The pipe is plastic failure, followed by brittle failure after the inflection point, resulting in an increase in production costs, which needs to be improved