一次性发泡塑料餐具由聚苯乙烯制成,简称PS聚苯乙烯特点成本低、加工方便,同时硬而刚、透明度好,化学稳定性、介电性能良好,着色性佳;成型性能好,在使用温度范围内,成品收缩变形性小,尺寸稳定;耐水性好,化学稳定性随温度的升高而降低;对一定浓度的无机酸、有机酸、盐类溶液及碱类、醇类、植物油类等都有较好的抵抗性,易溶于二氯甲烷、甲苯、 Disposable foam plastic tableware made of polystyrene, referred to as PS polystyrene features low cost, easy processing, hard and just, good transparency, chemical stability, good dielectric properties, good coloring; molding performance, In the use of temperature range, shrinkage of the finished product is small, dimensional stability; water resistance, chemical stability decreases with increasing temperature; to a certain concentration of inorganic acids, organic acids, salts and alkalis, alcohols, Vegetable oils, etc. have better resistance, soluble in dichloromethane, toluene,