PVC (Polyvinyl Chloride) crusted and foamed flitch for construction and preparation method thereof

Abstract

The invention provides a PVC (Polyvinyl Chloride) crusted and foamed flitch for construction. The flitch has a hollow and rectangular cross section and is prepared from the following raw materials in parts by weight: 130-165 parts of PVC reclaimed materials, 5-10 parts of PVC resin powder, 1.5-2.5 parts of stabilizer, 1.5-4 parts of foaming regulator, 0.5-0.8 part of white foaming agent, 0.15-0.3 part of yellow foaming agent, 0.2-0.4 part of plasticizer and 0.4-0.7 part of lubricant, wherein the lubricant is prepared through mixing an external lubricant, i.e., PE (Polyethylene) wax and an internal lubricant, i.e., ZB-60. The invention further provides a preparation method of the PVC crusted and foamed flitch for construction. According to the PVC crusted and foamed flitch for construction and the preparation method thereof, the PVC reclaimed materials serve as a main raw material, so that the waste is changed into the valuable, the production cost is reduced, and energy is saved; the adopted preparation method is simple and is easy in operation, the prepared product is smooth and attractive in surface, high in strength and good in aging resistance, and thus the surface of the product is not required to be cleaned after demolding; the product can be used repeatedly, the degree of aging is 15% after 6 years, and thus, the service life is long.

Description

technical field [0001] The invention relates to a wooden cube, in particular to a PVC-skinned foamed wooden cube for construction and a preparation method thereof. Background technique [0002] With the rapid advancement of the urbanization process, housing construction is in full swing in various parts of the country. When building a house, it is necessary to use wooden squares to reinforce and load-bearing the back of the building formwork, so the demand for wooden squares is increasing. However, the existing wooden squares are mainly prepared from wood, which are often prone to fragmentation or softening and deformation due to poor weather resistance, cannot be recycled, and consume a large amount of forest resources. Contents of the invention [0003] The technical problem to be solved in the present invention is to propose a kind of PVC-skinned foamed wooden square for building with strong weather resistance, recyclable use, energy saving and environmental protection ...

AI Technical Summary

Problems solved by technology

However, the existing wooden cubes are mainly prepared from wood, which are often prone to cracking or softening and deformation due to poor weather resistance, and cannot be recycled, and consume a large amount of forest resources.