Masterbatch for polyethylene double-wall corrugated pipe and its preparation method

Abstract

A disclosed master batch applied to a polyethylene double-wall bellows comprises the following raw materials in parts by weight: 60-150 parts of an ultrafine inorganic mineral powder, 20-50 parts of high-density polyethylene resin, 8-15 parts of EVA grafted resin, 8-12 parts of organic-group modified polysiloxane, 3-4 parts of a powdery surfactant, and 3-5 parts of a polyolefin oligomer. A three-dimensional stereo structure is formed by taking high-density polyethylene resin and EVA grafted resin as matrix resin, and is taken as a scaffold of a material, so that the material is endowed with relatively good toughness and processing performances; and also the units of the three-dimensional net structure formed by the matrix resin are effectively filled with the ultrafine inorganic mineral powder, the structure formed by combination of the inorganic mineral powder and the matrix resin enables the master batch to have relatively high bending elasticity modulus, thereby guaranteeing relatively high strength, toughness and bearing capability of the bellows.

Description

technical field [0001] The invention relates to a polyethylene double-wall corrugated pipe, in particular to a master batch for the polyethylene double-wall corrugated pipe and a preparation method thereof. Background technique [0002] In recent years, my country's plastic pipe industry has developed rapidly and its application fields have continued to expand. It has become one of the important industries in the national economy and is known as the blood vessel in the city. It has attracted more and more attention from governments at all levels and relevant departments. At the same time, the relevant national policy guidance has enabled the further promotion and application of plastic pipes. "National Chemical Building Materials Industry Tenth Five-Year Plan and 2010 Development Plan Outline", the Ministry of Construction's "Announcement on Issuing the Ministry of Construction's Promotion and Application and Restriction of Prohibited Technologies" (Ministry of Construction ...

AI Technical Summary

Problems solved by technology

[0004] The masterbatch of the polyethylene large-diameter double-wall corrugated pipe in the above-mentioned prior art has the advantage of improving the ring stiffness level of the polyethylene large-diameter double-wall corrugated pipe; however, its disadvantage is: the The flexural modulus is low, resulting in low strength, toughness and load-carrying capacity of the bellows