可挤压的支架和加强杠有时会被聚丙烯泡沫或者成型的塑性塑料替代。
Polypropylene foam or formed thermoplastic sometimes is used in addition to or instead of crushable brackets and a bar.
是聚乙烯、聚丙烯、聚苯乙烯、ABS树脂、聚脂、纤维素树脂和泡沫塑料的廉价通用抗氧剂，特别适用于白色或浅色制品。
Is polyethylene, polypropylene, polystyrene, ABS resin, polyester resin, cellulose and cheap general foam plastics antioxidants, especially suitable for white or light color products.
泡沫抑制剂添加剂都是有机硅或聚丙烯酸酯。
Foam inhibitor additives are either silicones or polyacrylates.
聚丙烯(PP)具有优良的物理化学性能，来源丰富，价格便宜，PP泡沫产品在许多领域将有广泛的用途。
Polypropylene (pp) has good physical and mechanical properties with rich sources and low price, and its foamed articles have wide applications in many fields.
以改性聚丙烯酰胺与甲苯二异氰酸酯等进行混合发泡合成功能泡沫塑料。
The functional polyether polyurethane foam was synthesized by mixing the polyacrylamide and toluene 2, 4-diisocyanate, etc.
以改性聚丙烯酰胺与甲苯二异氰酸酯等进行混合发泡合成功能泡沫塑料。
The functional polyether polyurethane foam was synthesized by mixing the polyacrylamide and toluene 2, 4-diisocyanate, etc.
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