A kind of bendable PVC rigid-flexible composite board and its preparation method

Abstract

The invention discloses a bendable PVC rigid-flexible composite board and a preparation method thereof. It comprises a rigid layer, a flexible layer and a facing layer. The rigid layer is provided with male corner grooves and female corner grooves. The raw materials of the rigid layer include: PVC resin, Calcium zinc composite stabilizer, stearic acid, polyethylene wax, polyacrylate, chlorinated polyethylene, bamboo wood powder, calcium carbonate stone powder, azodicarbonamide, antibacterial filler and sodium iodide; flexible layer raw materials include: PVC Resin, PVC softener, calcium zinc complex stabilizer, stearic acid, polyethylene wax, calcium carbonate stone powder, azodicarbonamide, antibacterial filler and sodium iodide. The invention adopts a rigid-flexible composite structure, which has good impact resistance; it can be bent along the yin and yang corner grooves, and the yin and yang corners can be seamlessly spliced; antibacterial fillers are added to improve the mechanical properties of the board and make the board waterproof and mildew-proof; the rigid layer , The flexible layer and the decorative layer are hot-pressed and compounded together, the process is simple, the use of glue is avoided, and it is more energy-saving and environmentally friendly.

Description

A kind of foldable PVC rigid-flex composite board and preparation method thereof technical field The present invention relates to building material technical field, especially relate to a kind of foldable angle PVC rigid-flexible composite board and preparation thereof method. Background technique PVC is a thermoplastic polymer material, which is often combined with wood (wood cellulose, plant cellulose), stone Powder and other mixtures are processed into new composite decorative materials such as wood-plastic panels and stone-plastic panels, because they have both wood and plastic or stone powder and plastic. Its performance and characteristics have been widely used in interior decoration and other fields. [0003] The traditional wood-plastic board or stone-plastic board has poor bending resistance and is easy to break. When used for wall or ground decoration, it encounters a corner, The board must be sawed and then spliced ​​through the inner corner or the outer c...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the poor bending resistance and easy breakage of the composite boards in the prior art. When they are used for wall or floor decoration, when corners are encountered, the boards must be sawed and then spliced ​​through internal corner lines or external corner lines. , the construction process is cumbersome, the connection stability of the boards is poor, and the decorative effect is affected. A PVC rigid-flexible composite board with bendable angles and its preparation method are provided. Layer compounding, so that the PVC rigid-flexible composite board has good mechanical properties, not easy to break and deform, and at the same time, it can be bent at the corner without cutting and connecting with male and female corners, which simplifies the construction process , to ensure the decorative effect

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