Injection molding method of fiber network-containing plastic board

Abstract

The invention relates to an injection molding method of a fiber network-containing plastic board. According to the injection molding method, a fiber network is fixed on the surface of a female mold and/or a male mold in a mold cavity and is embedded in the plastic board by concave-convex lines on the surface of the mold, and therefore, a phenomenon that the fiber network is only fixed on the surface of the female mold and/or the male mold to cause the fiber flotation is avoided, and the service life of the plastic board is prolonged; and besides, according to the method, the fiber network can be tensioned in a plastic board forming process, and therefore, the strength of the plastic board is ensured; in addition, the fiber network is embedded in a single plastic material and is fixed together with the plastic board without bonding and the like, so that two sides of the fiber network are made of the same material, the interface stripping problem in the traditional bonding and fixing mode is avoided, and the strength of the plastic board is improved; and the plastic board produced by the method can be used as a building template and the like.

Description

technical field [0001] The invention relates to the field of composite material and building formwork manufacturing, in particular to an injection molding production method of a fiber net-containing plastic plate. 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 pro...

AI Technical Summary

Problems solved by technology

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

Although fiber nets such as glass fiber mesh cloth can be placed in the inner cavity of the injection mold to form the fiber net and the plastic material extruded into the mold together to form a plastic sheet containing the fiber net, 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