| 生产木塑复合材料的塑料原料 |
| 添加时间：2019/12/21 14:25:32 浏览次数： |
| 随着对木塑复合材料的研发，生产木塑复合材料的塑料原料，除了有高密度聚乙烯或聚丙烯以外，还有聚氯乙烯和PS。工艺也由最早的单螺杆挤出机发展成第二代锥形双螺杆挤出机，再到由平行双螺杆挤出机初步造粒，再由锥形螺杆挤出成型，可以弥补难以塑化，抗老化性差、抗蠕变性差、色彩的一致性和持久性差和拉伸强度等。 With the development of WPC, the raw materials of WPC are not only HDPE or PP, but also PVC and PS. The process also developed from the earliest single screw extruder to the second generation conical twin-screw extruder, then to the parallel twin-screw extruder for preliminary granulation, and then to the conical screw extrusion molding, which can make up for the poor plasticization, aging resistance, creep resistance, color consistency, durability and tensile strength. 我国多家科研院所和汉永塑料新材料经过多年的研发和积累，所制造的WPC材料完全可以达到GB/T 24137和ASTM D7031 ；ASTM D7032；BS DD CEN/TS 15534-3的要求。 After years of R & D and accumulation, many scientific research institutes and Hanyong plastic new materials in China have manufactured WPC materials that can completely meet the requirements of GB / T 24137 and ASTM d7031; ASTM d7032; BS DD CEN / TS 15534-3. |
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