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废塑料都不同程度地粘有污垢,一般须加以清洗,不然会影响产品质量,但用废塑料制瓦对清洗要求并不严格。在废塑料中加入粉煤灰、石墨、酸钙,粉煤灰化学组成属于CaO-Al2O3-SiO2系统,其表面积很大,塑料与其具有良好的结合力,可保证制备的瓦具有较高的强度和寿命。加入碳酸钙能提高
Waste plastics have varying degrees of dirt, generally need to be cleaned, otherwise it will affect the quality of products, but with waste plastic tile cleaning requirements are not strict. The addition of fly ash, graphite, calcium carbonate and fly ash in the waste plastics belongs to the CaO-Al2O3-SiO2 system. The surface area of the fly ash is very large. The plastic has a good combination with the plastic to ensure that the prepared tile has high strength And life expectancy. Adding calcium carbonate can improve