Imitation natural stone sheet and making process thereof
A technology imitating natural stone and manufacturing process, which is applied in the field of wall insulation and decoration materials, can solve the problems of fast fading of pigments, serious flow lines, single color tone of molded sheets, etc., and achieve good flame retardant effect, high strength and high hardness Effect
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[0012] Taking the production of 1,000 kg of molded sheets for imitation granite exterior wall panels as an example, the raw materials are first to use high-temperature resistant resin, increase the resin content by 20%, second, reduce the content of shrinkage agent by 20%, and third, increase the anti-ultraviolet absorber, Antioxidant, the third is to reduce the original main filler calcium powder by 75%, and add aluminum hydroxide, 60-mesh natural colored stone particles and 15-mesh real stone particles. The raw material formula and weight ratio are: resin 230kg, low shrinkage agent 90kg, anti-ultraviolet absorber 2kg, antioxidant 1.4kg, dispersant 9kg, calcium powder 100kg, aluminum hydroxide 105kg, natural colored stone particles 390kg, glass fiber 66kg , Release agent 6kg, magnesium oxide 3.5kg, curing agent 2,6kg. Its preparation process is as follows:
[0013] 1. Preparation of low-shrinkage agent; put polystyrene, antioxidant, and anti-ultraviolet absorber into styrene...
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