Building template reinforced by composite of continuous fiber plastic coated belt material and preparation method thereof

Abstract

The invention discloses a building template reinforced by composite of a continuous fiber plastic coated belt material, which has the advantages of favorable mechanical property and complete waterproof and dampproof properties and can be recycled more than a hundred of times. In the composite reinforced building template of the continuous fiber plastic-coated belt materials, a wooden oriented structural board is used as a core layer, a macromolecular adhesive membrane and 2-4 layers of continuous fiber plastic-coated belt materials are outwards sequentially and flatly paved and fixed on the two sides of the wooden oriented structural board symmetrically to form multilayer-combined composite reinforced building template of the continuous fiber plastic-coated belt materials, with a sandwich structure, wherein surface resin on one face of the macromolecular adhesive membrane is polypropylene resin, the surface resin on the other face of the macromolecular adhesive membrane is maleic anhydride modified polypropylene resin, a macromolecular adhesive membrane face with the surface resin of the maleic anhydride modified polypropylene resin is laminated with the wooden oriented structural board as the core layer, and a macromolecular adhesive membrane face with the surface resin of the polypropylene resin is adhered to a thermoplastic resin plastic-coated layer of the continuous fiber plastic-coated belt materials through thermal compression; and the continuous fiber plastic-coated belt materials are manufactured by coating thermoplastic resin on continuous fiber warp-knitted unidirectional cloth, and the fiber content of the continuous fiber plastic-coated belt materials is 20-60%.

Description

technical field [0001] The invention relates to a building formwork and a preparation method thereof, more specifically to a continuous fiber plastic-coated tape composite reinforced building formwork and a preparation method thereof. Background technique [0002] Common building formwork is used for concrete pouring and molding. The early building formwork was made of iron, which was heavy, expensive, inconvenient to transport, and had hidden potential safety hazards in construction; currently, steel-wood composite formwork is mainly used in large-scale construction projects, while wood is still used in general construction projects. Glue formwork or bamboo formwork, made of multi-layer thin wood chips glued and hot-pressed, is easy to crack after water seepage, and the number of uses is only 3 to 5 times. After a short period of use, it can only become a pile of garbage, causing great harm to the environment. big negative impact. In recent years, various types of "plasti...

AI Technical Summary

Problems solved by technology

The early building formwork was made of iron, which was heavy, expensive, inconvenient to transport, and had hidden safety hazards in construction; currently, steel-wood composite formwork is mainly used in large-scale construction projects, while wood is still used in general construction projects. Glue formwork or bamboo formwork, made of multi-layer thin wood chips glued and hot-pressed, is easy to crack after water seepage, and the number of uses is only 3 to 5 times. After a short period of use, it can only become a pile of garbage, causing great harm to the environment. big negative impact

In recent years, various types of "plastic building formwork" have appeared one after another, such as wood-plastic formwork, GMT formwork, hollow plastic formwork, glass fiber reinforced plastic formwork, glass fiber cloth reinforced plastic formwork, film-covered formwork, etc. The main problem that still exists is the strength. And the stiffness is low, the heat resistance is poor, especially when the weather is hot, the template is prone to deformation; because of the poor water resistance at the same time, the template will bubble, warp or break if it is reused less than 10 times

In particular, there is no relevant report on the use of wood-based oriented strand board as the core substrate, the use of continuous fiber plastic-coated strips to compound the reinforcement material, and its application in the field of building templates.

Images