Five-layer co-extrusion laminated board for sanitary ware and preparation method thereof

Abstract

The invention discloses a five-layer co-extrusion laminated board for sanitary ware and a preparation method thereof, wherein the first layer and the fifth layer are made from PMMA and UV; the secondlayer and the fourth layer are made from the PMMA, ABS, the UV and a titanium dioxide color master batch; and the third layer is made from the ABS and the titanium dioxide color master batch. The preparation method of the board comprises the following steps: uniformly mixing and stirring the raw materials of each layer in respective mixing hoppers; drying the raw materials and then plasticizing, melting and extruding the raw materials into corresponding flow channels of a distributor at a certain temperature by three extruders; and extruding the raw materials by a T-shaped die head and flattening the raw materials through a flattening system to prepare the board. The invention has the advantages that after long-term uneven cold and hot changes, the board is not easy to generate delamination to crack, has good hot water circulation resistance and the function of ultraviolet ray resistance, can be guaranteed to be not easy to fade during use and have cracking resistance, chemical corrosion resistance, hot water circulation resistance, stable color, difficult fading after being exposed to the sun and the rain for a long term, and the like. The invention is also widely suitable for other fields such as indoor and outdoor decoration, and the like.

Description

technical field [0001] The invention relates to a five-layer co-extruded composite board for sanitary ware and a preparation method thereof. Background technique [0002] Acrylic composite panels are widely used in the sanitary ware industry such as bathtubs and bathtubs. At present, the raw materials for preparing such panels are mostly acrylonitrile-butadiene-polystyrene copolymer (ABS) and polymethyl methacrylate (PMMA). , but from the perspective of chemical mechanism, ABS and PMMA are not structurally compatible, which leads to the disadvantages of poor crack resistance, chemical corrosion resistance and hot water cycle resistance of the board produced by extrusion. Contents of the invention [0003] One of the purposes of the present invention is to provide a five-layer co-extruded composite board for sanitary ware: [0004] The five-layer co-extruded composite board for sanitary ware consists of five layers: [0005] The first layer: benzotriazole ultraviolet abso...

AI Technical Summary

Problems solved by technology

[0002] Acrylic composite panels are widely used in the sanitary ware industry such as bathtubs and bathtubs. At present, the raw materials for preparing such panels are mostly acrylonitrile-butadiene-polystyrene copolymer (ABS) and polymethyl methacrylate (PMMA). , but from the perspective of chemical mechanism, ABS and PMMA are not structurally compatible, which leads to the disadvantages of poor crack resistance, chemical corrosion resistance and hot water cycle resistance of the board produced by extrusion.