Degradable HDPE double-wall corrugated pipe

Abstract

The invention discloses a degradable HDPE double-wall corrugated pipe. The degradable HDPE double-wall corrugated pipe comprises an inner wall and an outer wall. The inner wall is prepared from the following raw materials by weight: 80 to 120 parts of high density polyethylene, 20 to 35 parts of phthalate, 6 to 15 parts of stearic acid, 5 to 15 parts of 4'-fluoro-3'-nitroacetophenone, 10 to 20 parts of ethylene bisstearamide, 15 to 30 parts of tetrapentaerythritol ester, 1 to 5 parts of sorbitol, 3 to 15 parts of phosphorous oxychloride and 10 to 15 parts of chlorinated paraffin. The outer wall is prepared from the following raw materials by weight: 90 to 110 parts of high density polyethylene, 5 to 14 parts of polylactic acid, 1 to 8 parts of 3,5-dibenzyloxyacetophenone, 5 to 25 parts of triethylenediamine, 3 to 7 parts of 2,6-dichloroaniline, 2 to 10 parts of 2,6-tert-butyl-4-methylphenol, 2 to 6 parts of bisthioether, 5 to 10 parts of glycollic acid, 3 to 8 parts of aluminic acid ester and 4 to 10 parts of zinc oxide. According to the invention, a plurality of HDPE degradation promoters and inducing agents are added into the raw materials, so usage of the prepared corrugated pipe is not influenced by degradation in prescribed service life of the corrugated pipe, and when the corrugated pipe reaches retirement life, the corrugated pipe can be naturally degraded, which is environment-friendly and pollution-free.

Description

technical field [0001] The invention relates to the field of pipe materials, in particular to a degradable HDPE double-wall corrugated pipe. Background technique [0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the direction of folding and stretching. Bellows are widely used in instruments and meters, the main purpose is as a pressure measuring instrument Measuring element , to convert pressure to displacement or force. Due to the gradual increase in the scope of use, people pay more and more attention to the production process and use technology of bellows, and people have been looking for materials that are suitable for manufacturing more advanced and stronger bellows. HDPE is a highly crystalline, non-polar thermoplastic resin. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, environmental stress crackin...

AI Technical Summary

Problems solved by technology

However, with the continuous development of industry, the disposal of waste plastics has become a gap that is difficult to break through in environmental protection.

A large number of plastic waste products appear every year, which seriously pollutes the environment. The disposal of these waste plastic products also increases the economic burden of enterprises and causes a waste of resources.