Regenerated plastic base sisal hemp fiber reinforced construction mould plate and its processing method

Abstract

The present invention relates to sisal fiber reinforced regenerated plastic building shuttering and its making process. The sisal fiber reinforced regenerated plastic building shuttering consists of laminated plastic base and sisal fabric-dry sisal leaf layer, and through hot pressing to form integral. The building shuttering is made through sorting, cleaning and pelletizing waste plastic; banburing together with stuffing to form sheet in certain size; laminating the plastic sheets and sisal fabric-dry sisal leaf layers and hot pressing. The building shuttering has high strength, high corrosion resistance, high rain water resistance, smooth surface, convenient construction and environment friendship.

Description

technical field [0001] The invention relates to a building template prepared by using sisal leaves, sisal fibers and modified waste general-purpose plastics and a processing method thereof. Background technique [0002] As we all know, building formwork is a very large and indispensable auxiliary tool in the construction industry. With the development of high-rise buildings, the amount of cast-in-place concrete structures is increasing, and the use of building formwork is also increasing. According to estimates, every The construction area per square meter generally requires an average of about 2.65 square meters of building formwork. The extensive use of building formwork has promoted the rapid development of formwork technology, the level of formwork engineering design and construction technology has been continuously improved, and the variety and specifications have increased rapidly. At present, there are mainly the following types: [0003] (1) Wooden plywood formwork...

AI Technical Summary

Problems solved by technology

[0007] Due to the high amount of waste and damage when assembling or disassembling the formwork, generally it can only be reused two or three times. Therefore, in actual construction projects, the consumption of natural resources such as bamboo and wood is extremely alarming; if steel formwork is used, other Assembly and disassembly are also very troublesome, and storage is also very inconvenient in large-scale construction projects; at present, the formwork structure and materials used at home and abroad have made great progress, but the problem of punching holes in the formwork has not been well resolved , the formwork is damaged after punching, especially the bamboo formwork and plywood formwork. Due to the erosion of the cement slurry in the concrete, the formwork is easily deformed during use. The gap between the formwork and the tension bolts is filled with cement slurry. Bolts produce a lot of resistance, and the template surface is destroyed quickly, which cannot reach the designed number of uses, and the flatness is not good, it is easy to crack, and the service life is short, which urgently needs to be improved

[0008] With the development of the plastics processing industry, there are also wood-plastic formworks and bamboo-plastic formworks made of waste plastics, wood, and bamboo composites on the market, such as patents CN1486841A, CN1584257A, etc. This wood-plastic formwork and bamboo-plastic formwork are one On the one hand, it solves the problem of waste plastic recycling and reuse, and at the same time, it also solves the problem that the conventional formwork is easy to deform, the gap between the formwork and the pull bolts is filled with cement slurry, the formwork surface is destroyed quickly when the formwork is removed, the flatness is not good, and the service life is short, etc. problems, has a good application prospect

[0009] The building templates produced by waste plastics currently on the market mainly have the following problems in production and use: (1) Since materials such as wood chips and bamboo chips have no affinity with plastics, at the same time, in order to ensure the physical and mechanical properties of the templates Performance, wood chips or bamboo chips are required to be tight when they are arranged, and it is difficult for plastic materials to pass through these wood chips or bamboo chips to form a "rivet" effect, which makes the produced bamboo-plastic and wood-plastic templates easy to crack; (2) wood chips, bamboo The strengthening effect of the sheets on the made building formwork has directionality. Only through a certain arrangement can the force of the formwork be isotropic. Therefore, the arrangement of wood chips and bamboo chips has a great influence on the performance of the made building formwork. At the same time, it is very complicated and cumbersome to the whole processing process; (3) Wood chips and bamboo chips are relatively "brittle", and the building templates made basically do not have bending properties, and cannot be processed into special-shaped buildings through secondary molding template

Images