Method for manufacturing composite foamed plastic template

Abstract

The invention provides a method for manufacturing a composite foamed plastic template, and the composite foamed plastic template is composed of an upper surface, a lower surface layer and a core layer and has the following raw material proportioning: as for the upper surface layer and the lower surface layer, olefin plastics accounts for 40-90% of the raw materials and the filler accounts for 5-40% of the raw materials; as for the core layer, the glass fiber or plant fiber accounts for 10-60% of the raw materials while foaming agent is 0.2-3%, temperature regulator is 0.6-5%, and lubricant is 0.3-2%.The concrete processing procedures comprise pre-treatment, preparation of the core layer, the preparation of the upper surface layer and the lower surface layer and the like. The invention overcomes the defect that the plastic template only has rigidity without toughness; the product can be three-layer or multi-layer so as to enable the structure to be more reasonable, and the foaming materials are arranged in the middle, thus having the advantages of light weight, large rigidity, cold resistance, high temperature resistance and thermal insulation, high inventory turns, corrosion prevention, acid-base resistance and easy demoulding, reducing the shortcoming of large thermal shrinkage for plastics, having the capability of being customized in any size and reclaimed by 100%, reducing the joints of building wallboards, further smoothing and leveling the walls, saving materials and the like.

Description

technical field [0001] The invention relates to a method for manufacturing a composite foamed plastic formwork used in the construction field. Background technique [0002] At present, the building templates used in various construction fields are mainly steel material templates, wooden material templates and plastic templates. Although the steel material formwork has a strong structure and can be reused many times, it is easy to bond with concrete during use, it is difficult to demould, and it is heavy and easy to corrode, especially when it is eroded by water for a long time, it is easy to rust and rot , the number of repeated uses is greatly reduced, and the service life is easily limited by these problems. The wooden formwork is made of wood, which is easy to rot and deform after being soaked in water, and after a few times of use, it will be glued and layered and cannot be used, resulting in a large waste of wood and greatly increasing the construction cost. hazards t...

AI Technical Summary

Problems solved by technology

Although the steel material formwork has a strong structure and can be reused many times, it is easy to bond with concrete during use, it is difficult to demould, and it is heavy and easy to corrode, especially when it is eroded by water for a long time, it is easy to rust and rot , the number of repeated uses is greatly reduced, and the service life is easily limited by these problems

The wooden formwork is made of wood, which is easy to rot and deform after being soaked in water, and after a few times of use, it will be glued and layered and cannot be used, resulting in a large waste of wood and greatly increasing the construction cost. environmental and human hazards

Ordinary plastic formwork has disadvantages such as high specific gravity, high temperature deformation, cold and fragile, less repeated use, rigidity but no toughness, and specifications cannot be adjusted arbitrarily.