A kind of engineering plastic alloy composite plastic template and preparation method thereof

Abstract

The invention provides an engineering plastic alloy composite template and a preparation method thereof. A foaming reactor core material is obtained by foaming polyvinyl chloride through a foaming technology; the polyvinyl chloride foaming reactor core material and an engineering plastic alloy are subjected to co-extrusion forming, and the two surface layers are directly obtained and are engineering plastic; the engineering plastic alloy layers and the polyvinyl chloride foaming reactor core layer are directly fused, and alloy layers are formed at contact interfaces of the engineering plasticalloy layers and the polyvinyl chloride foaming reactor core layer; a bonding agent layer is not needed, the engineering plastic alloy composite template with a five-layer structure is finally formed,the two outer surfaces of the engineering plastic alloy composite template are the engineering plastic layers, the two engineering plastic alloy layers which are tightly attached to the surface layers are arranged on the inner sides of the surface layers, and the reactor core layer is the polyvinyl chloride foaming layer. The engineering plastic alloy composite template solves the problem that atraditional board is low in strength, low in temperature tolerance, low in impact strength and poor in flame retardancy, higher bending elasticity modulus and higher impact strength are achieved, andthe problems that the rigidity toughness of a traditional building template cannot be synchronously improved and the material is poor in temperature resistance are solved; the engineering plastic alloy composite template is simple in production process and environment-friendly.

Description

technical field [0001] The invention relates to an engineering plastic alloy composite plastic template and a preparation method thereof. Background technique [0002] China's annual infrastructure scale is 18 trillion, of which the formwork is about 500 billion, which consumes 16 billion square meters of wooden building formwork every year, and cuts down 20 million mu of forest every year. However, this part of wood becomes construction waste after only 4 months. China's huge Under the pressure of environmental protection, we have devoted ourselves to the new material industry, using recyclable plastics as building templates. [0003] In construction engineering, formwork engineering is an important part of concrete forming. As a leading procedure, formwork engineering is also an important part of construction design. The quality of the formwork project not only affects the progress of the project, but also determines the quality of the reinforced concrete project structur...

AI Technical Summary

Problems solved by technology

The engineering plastic alloy foamed board of the present invention solves the problems of low strength, poor temperature resistance, low impact strength and poor flame retardancy of traditional boards, has stronger flexural modulus of elasticity and stronger impact strength, and solves the problem of traditional building materials. The rigidity and toughness of the template cannot be improved simultaneously, and the temperature resistance of the material is poor, and the production process is simple and environmentally friendly

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