High-temperature-resistant dewaxing molecular sieve double-wall corrugated pipe and preparation method

Abstract

The invention discloses a high-temperature-resistant dewaxing molecular sieve double-wall corrugated pipe and a preparation method. The high-temperature-resistant dewaxing molecular sieve double-wall corrugated pipe is prepared from the following raw materials in parts by weight: 80-86 parts of high-density polyethylene, 2-3 parts of POE plastic, 1-2 parts of octyl isothiazolone, 4-5 parts of flaming retarding master batch, 5-10 parts of master batch, 1-2 parts of tert-butyl aluminum benzoate, 2-4 parts of poly-4-methyl-1-amylene, and 5-10 parts of modified aluminum oxide hollow microspheres. The preparation method of the high-temperature-resistant dewaxing molecular sieve double-wall corrugated pipe comprises the following steps: stirring to disperse the raw materials in the formula for 5-10 minutes at the room temperature at the rotation speed of 100-200rpm, stirring at 90-100 DEG C, automatically cooling after being uniformly stirred, automatically feeding, extruding by using a single-screw extruder, pulling out a product from a forming machine, performing fixed-scale cutting by using a cutting machine, inspecting, and storing in a warehouse. The high-temperature-resistant dewaxing molecular sieve double-wall corrugated pipe has the beneficial effects that the problems that the mounting and use property and the drainage reliability can be affected as the ring stiffness of a polyethylene double-wall corrugated pipe at high temperature is degraded can be solved.

Description

technical field [0001] The invention relates to a polyethylene double-wall corrugated pipe, in particular to a high-temperature-resistant polyethylene double-wall corrugated pipe and a preparation method thereof. Background technique [0002] The development and application of polyethylene double-wall corrugated pipes in my country mainly started from the beginning of this century, and the large-scale promotion and application only took about ten years. Although it is only a short ten years, it has been generally accepted by the market and is a cheap Wumart's better drainage pipes with higher cost performance have become mainstream products in the construction market and municipal engineering. However, because the product has not been used for a long time, there are still some problems in product performance and use, and there are areas that need to be improved and expanded. [0003] The climate in most regions of China presents the characteristics of cold winter and hot sum...

AI Technical Summary

Problems solved by technology

However, the rigidity of pure polyethylene material will decrease significantly with the increase of temperature, which is commonly known as softening, which is manifested in the physical and chemical indicators of polyethylene double-wall corrugated pipe, that is, the measured value of ring stiffness decreases significantly.