聚丙烯(PP)的成型加工:
聚丙烯的成型加工性好,成型的方法很多,如注塑、吹塑、真空热成型、涂覆、旋转成型、熔接、机加工、电镀和发泡等,并可在金属表面喷涂。其中注塑成型的比 例大,注塑温度在180~200之间,注塑压力在68.6~137.2MPa,模具温度为40~60℃。预干燥温度在80℃左右。应避免PP长时间与金属 壁接触
聚丙烯的二次加工性很好,其印刷性比聚乙烯好,照相凸版,胶版、平凹板等印刷方法均可使用,要获得良好的良好的耐热、耐油、耐水等要求的印刷性能,须经电晕放电处理等再行印刷。
PP材料的其他牌号:
RheTech Polypropylene G13P100-598UV RheTech, Inc. PP
RheTech Polypropylene G13P100-724UV RheTech, Inc. PP
RheTech Polypropylene G20P100-00 RheTech, Inc. PP
RheTech Polypropylene G20P100-01 RheTech, Inc. PP
RheTech Polypropylene G30P100-00 RheTech, Inc. PP
RheTech Polypropylene G30P100-01 RheTech, Inc. PP
RheTech Polypropylene G40P100-00 RheTech, Inc. PP
RheTech Polypropylene G40P100-01 RheTech, Inc. PP
RheTech Polypropylene G40P100-04UV RheTech, Inc. PP
RheTech Polypropylene GC10P100-00 RheTech, Inc. PP
RheTech Polypropylene GC10P100-01 RheTech, Inc. PP
RheTech Polypropylene GC20P100-00 RheTech, Inc. PP
RheTech Polypropylene GC20P100-00UV RheTech, Inc. PP
RheTech Polypropylene GC20P100-01 RheTech, Inc. PP
RheTech Polypropylene GC20P100-04 RheTech, Inc. PP
RheTech Polypropylene GC20P100-177UV RheTech, Inc. PP
RheTech Polypropylene GC20P104-08 RheTech, Inc. PP
RheTech Polypropylene GC20P105-08FA RheTech, Inc. PP
RheTech Polypropylene GC20P600-01UV RheTech, Inc. PP
加工方法 | · 注射成型 |
| | | |
比重 | 1.05 | g/cm3 | ASTM D792 |
熔流率 (230°C/2.16 kg) | 8.0 | g/10 min | ASTM D1238 |
| | | |
硬度计硬度 (邵氏 D) | 75 | | ASTM D2240 |
| | | |
抗张强度 2 | 64.7 | MPa | ASTM D638 |
弯曲模量 - 正切 | 3520 | MPa | ASTM D790 |
| | | |
悬壁梁缺口冲击强度 (23°C) | 69 | J/m | ASTM D256 |
落锤冲击 | 0.452 | J | ASTM D5420 |
| | | |
热变形温度 | | | ASTM D648 |
| | | |
| | | |
| | | |
干燥温度 | 65.6 到 82.2 | °C | |
干燥时间 | 1.0 到 2.0 | hr | |
建议的最大水分含量 | 0.050 | % | |
螺筒后部温度 | 199 到 227 | °C | |
螺筒中部温度 | 204 到 232 | °C | |
螺筒前部温度 | 210 到 238 | °C | |
射嘴温度 | 216 到 227 | °C | |
模具温度 | 26.7 到 48.9 | °C | |
注塑温度 | 2.76 到 10.3 | MPa | |
保压 | 2.07 到 8.27 | MPa | |
背压 | 0.345 到 1.03 | MPa | |
合模力 | 2.8 到 3.4 | kN/cm2 | |
|
Cycle Time: Wall Thickness Dependant
Drying is Optional
Injection Speed: Variable - Application Dependant
Screw recovery 3 seconds before mold opens |