Steel wire mesh skeleton plastic composite pipe and preparation method thereof

Abstract

The invention relates to the technical field of composite pipelines, and particularly discloses a steel wire mesh framework plastic composite pipe and a preparation method thereof. The steel wire mesh framework plastic composite pipe comprises an outer-layer polyethylene pipe, an inner-layer polyethylene pipe and a steel wire mesh arranged between the outer-layer polyethylene pipe and the inner-layer polyethylene pipe, and bonding layers are arranged between the outer-layer polyethylene pipe and the steel wire mesh and between the inner-layer polyethylene pipe and the steel wire mesh. Each bonding layer is prepared from a bonding agent, and the bonding agent is prepared from the following raw materials in parts by weight: 50-60 parts of polyethylene, 10-20 parts of maleic anhydride, 3-5 parts of an initiator, 20-30 parts of EVA resin, 10-15 parts of microcrystalline wax, 5-10 parts of ground calcium carbonate, 2-6 parts of a plasticizer, 2-5 parts of a tackifier, 1-3 parts of an antioxidant and 4-6 parts of titanium dioxide. The composite pipe with high peel strength is prepared by taking polyethylene as a matrix of the outer-layer pipe and the inner-layer pipe of the composite pipe, taking the bonding layers as a connecting carrier and taking the steel wire mesh as a reinforcing framework.

Description

technical field [0001] This application relates to the technical field of composite pipes, more specifically, it relates to a steel mesh skeleton plastic composite pipe and a preparation method thereof. Background technique [0002] Steel mesh skeleton plastic composite pipe is an improved new type of steel skeleton plastic composite pipe, also known as srtp pipe. This new type of pipe is made of high-strength plastic steel mesh skeleton and thermoplastic polyethylene as raw materials. As the skeleton reinforcement of polyethylene plastic pipe, polyethylene is used as the matrix to make it have excellent composite effect. Because the high-strength steel wire reinforcement is wrapped in continuous thermoplastic, this composite pipe overcomes the respective shortcomings of steel pipes and plastic pipes, while maintaining the respective advantages of steel pipes and plastic pipes, and is widely used in oil fields. , power plants, chemical and petrochemical enterprises, water c...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the joint of the composite pipe does not solve the problem of the steel-plastic interface, and the peel strength of the composite pipe is low. During the use of the composite pipe, there are gaps between the steel and the plastic of the composite pipe. Delamination

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