Glass fiber-reinforced PE (Poly Ethylene) compound material and preparation method and application thereof

Abstract

The invention discloses a glass fiber-reinforced PE (Poly Ethylene) compound material, which consists of the following components in percentage by weight: 70-85 percent of PE resin, 1-10 percent of a lubricating agent and 10-25 percent of glass fiber. The glass fiber-reinforced PE compound material has the beneficial effects: 1, the high-temperature resistance is superior, and the temperature of water conveyed by using a pipeline can be up to 120 DEG C under the normal working pressure; 2, the refrigerating resistance is high, better refrigerating resistance than a PE pipe is achieved when the glass fiber-reinforced PE compound material is used in a refrigerating state, the low-temperature resistance is ultrahigh, and the glass fiber-reinforced PE compound material can be used normally at the temperature of 40 DEG C below zero; 3, the impact resistance is higher, the weight is lighter (the specific gravity is only one eighth that of a metal), the strength is enhanced, the pipeline is prevented from dropping downwards, the passwords and quantity of fixed supporting points are reduced, and the comprehensive cost of engineering is lowered; and 4, the expansion coefficient is low, is only 20 percent that of an ordinary PP-R (Polypropylene Random) pipe and is approximate to that of a metal, and the problem that a plastic pipeline is bent and extends and contracts when meeting hot water is solved completely.

Description

technical field [0001] The invention relates to a PE composite material, in particular to a glass fiber reinforced PE composite material and a preparation method and application thereof, belonging to the field of plastic pipes. Background technique [0002] At present, in China's municipal pipe market, plastic pipes are developing steadily, and PE pipes, PP-R pipes, and UPVC pipes all occupy a place, among which the strong development momentum of PE pipes is the most eye-catching. PE pipes are used in a wide range of fields. Among them, water supply pipes and gas pipes are the two largest application markets. PE (polyethylene) material is widely used in the field of water supply pipe manufacturing due to its high strength, high temperature resistance, corrosion resistance, and non-toxicity. Because it will not rust, it is an ideal pipe to replace ordinary iron water supply pipes. However, there are also some defects in daily use: 1. Generally, when erecting pipelines, the...

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Problems solved by technology

However, there are also some defects in daily use: 1. Generally, when erecting pipelines, the span is relatively large, and the current PE pipe is not strong enough, and often sags in the middle, and then ruptures; 2. It is easy to bend and expand when exposed to hot water. , expansion, resulting in deformation of the water pipe, and damage to the wall

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