Compression molding forming method of plastic plate containing fiber net

Abstract

The invention relates to a compression molding forming method of a plastic plate containing a fiber net. The compression molding forming method is characterized by fixing the fiber net on the surface of an upper die and/or a lower die of a mould pressing die and embedding the fiber net in the plastic plate by virtue of concave-convex lines on the surface of the die, so that the fiber floating condition when the fiber net is fixed on the surface of the upper die and/or the lower die by a conventional method can be avoided, so that the service life of the plastic plate is prolonged; meanwhile, the method is also capable of tensioning the fiber net during forming the plastic plate, so that the strength of the plastic plate is ensured; in addition, the fiber net is embedded in the single plastic material, but not fixed on the plastic plate by virtue of manners of adhesion and the like, so that the two sides of the fiber net are made of the same material, and thus the problem that the interface is stripped in the conventional manners of adhesion, fixation and the like is avoided; the strength of the produced plastic plate is improved; the plastic plate produced by the method can be used as a building template.

Description

technical field [0001] The invention relates to the field of composite materials and building formwork manufacturing, in particular to a method for molding a plastic plate containing a fiber net. Background technique [0002] The building templates used in building construction mainly include wooden, bamboo, steel, plastic building templates and composite building templates formed by compounding several of the above-mentioned building templates. Although steel building formwork is strong and has a high number of uses, it is expensive, easy to rust, heavy, and difficult to transport; bamboo and wooden building formwork are light in weight, wide in width, and have few seams, but their strength is relatively low, and they are not moisture-proof and waterproof. It is easy to mildew and rot, and consumes green resources; plastic building formwork has the advantages of low cost, light weight, high reusability, stainless, non-stick cement, and waterproof. The production methods of...

AI Technical Summary

Problems solved by technology

However, in this method, the reinforcing fibers are in a discrete state, and its reinforcing effect is far less than that of fiber mesh cloth that can be restrained horizontally and vertically, such as glass fiber mesh cloth.

Although it is possible to set fiber nets such as glass fiber mesh cloth in the inner cavity of the molding die, so that the fiber nets can be molded together with the plastic material extruded into the mold, thereby forming a plastic sheet containing fiber nets, but the conventional method can only achieve fiber The net is fixed on the surface of the plastic board, so floating fibers are prone to appear on the surface of the plastic board. The fiber net on the surface of this building formwork is easy to wear and break during repeated use, resulting in a significant decrease in the strength of the building formwork and affecting the service life.

Moreover, whether the fiber mesh can be tensioned inside the plastic board also seriously affects the strength and life of the building formwork.

Images