High-strength and high-tenacity plastic building template

Abstract

The invention relates to a high-strength and high-tenacity plastic building template. On one hand, the mixed material of plastics and rubber serves as the main material of the building template, the weight ratio of the rubber to the plastics is higher than that of rubber and plastics in the prior art, and a specific accessory ingredient system is adopted to improve the tenacity of the building template. On the other hand, common chopped fiber is replaced by a reinforced fiber net which serves as a reinforcing body of the building template, the rigidity of the plastic building template is improved accordingly, the reinforcing fiber net is embedded into a single plastic plate to be fixed with the plastic plate rather than be fixed with the plastic plate through splicing and other methods, so that the two sides of the reinforcing fiber net are made of the same material, and the problem that boundary is separated easily due to the fact that the reinforcing fiber net is fixed through a traditional splicing method is avoided. According to the high-strength and high-tenacity plastic building template, three aspects including tenacity improvement, rigidity improvement and boundary separation prevention are taken into consideration, and therefore the service life of the plastic building template is comprehensively prolonged. In addition, recycled plastics and/or rubber is used as the main raw material of the plastic building template, so that production cost is reduced.

Description

technical field [0001] The invention relates to the field of building construction formwork, in particular to a high-strength and high-toughness plastic building formwork. 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 in weight, difficult to transport, and is easy to bond with concrete during use and difficult to demould; wooden and bamboo building formwork is light in weight and wide in width. It is wide and has few seams, but its strength is relatively low, the number of times of use is small, it is not moisture-proof and waterproof, it is easy to mildew and rot, and it consumes resources. In contrast, plastic building formwork has the advantages of low cost,...

AI Technical Summary

Problems solved by technology

However, the shortcomings of low toughness of non-foamed plastic building formwork also need to be overcome, and its strength needs to be further improved

[0004] For the shortcomings of improving the strength and toughness of non-foaming plastic building templates, the Chinese patent application number 201010619052.9 improves it by adding chopped glass fibers and toughening agents to polyolefin resins; however, and due to the shortcoming of chopped glass fibers The reinforcement effect is far less than that of the fiber mesh, so the strength of the plastic building formwork is not improved enough, and the weight ratio of the rubber toughener to the polyolefin resin does not exceed 1:5, resulting in insufficient improvement in the toughness of the mold

Our company found that simply increasing the rubber content on the basis of this patented technology cannot achieve further toughening effect under the premise of ensuring the inherent strength, and the increase of rubber content also brings difficulty in processing

In addition, if the chopped fibers are replaced with fiber webs, if the method disclosed in the Chinese Patent Application No. 200710021398.7 is used to bond the fiber webs to the surface of the plastic building formwork by using a thin layer of polymer resin to realize the fiber web in the plastic building formwork. distribution, the interface peeling between the fiber mesh and the plastic sheet is prone to occur when the formwork is removed

In addition, the patented technology uses a new resin material, which is costly

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