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倍韧/BESTPERNE® EN70A-11
热塑性弹性体Thermoplastic Elastomer
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产品说明Product description |
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EN70A-11是一款以SEBS为主基材的热塑性弹性体,成型快，好配色。 EN70A-11 is a kind of thermoplastic elastomer material based on SEBS as main material.Also it has rapid molding and easy coloring properties. |
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关键特性Key characteristic |
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1.手感柔软细腻，干爽，耐刮擦性好。Exquisite， soft and dry touch，good scratch resistance. 2.抗老化及耐腐蚀性优良。Excellent ageing resistance and corrosion resistance 3.可以包PP,PE It can be spliced with PP and PE |
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功能Function |
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产品应用 Main application |
1 汽车用品 Automotive products |
3手把Handlebar |
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2 运动器材Sports equipment |
4玩具产品Toy products |
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加工方法Processing method |
注塑成型Injection molding |
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环保认证 Environmental certification |
ROHS |
REACH |
EN71-3 |
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PAHS |
ASTM-F963 |
Phthalate |
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颜色Color |
本色 Natural |
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气味Smell |
少许树脂味A little resin smell |
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外型Appearance |
圆球形小颗粒Cylindrical particle，about 3mm×1.5mm |
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储藏期Storage period |
常温下通风干燥，24个月Ventilated dry at normal temperature，about 24 months |
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包装方式Packaging method |
25公斤/袋 25kg/bag |
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物理性能Physical properties |
结果Result |
单位Unit |
方法Method |
成型条件Molding condition |
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比重Specific gravity |
1.07±0.02 |
g/cm3 |
ASTM D792 |
干燥温度Drying temp 70℃ |
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硬度Hardness |
70±5 |
shoreA |
ASTM D2240 |
干燥时间Drying time 2Hours |
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拉伸强度Tensile strength |
>3 |
Mpa |
ASTM D412 |
射嘴温度Nozzle temp 190℃ |
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断裂延伸Elongation at break |
>400 |
% |
ASTM D412 |
螺筒一段温度Screw 1 temp 180℃ |
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撕裂强度Tearing strength |
>20 |
Kn/m |
ASTM D624 |
螺筒二段温度Screw 2 temp 170℃ |
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熔融指数Melt index |
>30 |
g/10min |
ASTM D1238 |
螺筒三段温度Screw 3 temp 160℃ |
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注意事项Matters need attention |
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清洗料管 Purge compound |
需使用PP或 PE清洗干净机台螺杆，且把机台射嘴彻底清除干净Please make sure you that you have cleaned the machine screw with PP or PE, and put the machine nozzle thoroughly clean |
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着色 Coloring
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请选择以PE或EVA为基材之色母，切勿使用以PVC为基材者。另外加工时请采用较高的螺杆转速和较高的背压，才能让着色剂达到较好的分散效果Please select color master batch on PE or EVA material with the exception of PVC.Higher screw speed and backpressure are needed for better colorant dispersion |
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回收 Recycling |
二次料（水口料）回收比率建议最多20%。 Consistent regrind usage of up to 20% is permissible |
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减少tpe材料气味的小细节
TPE之所以会有气味，主要是高温共混或加工组分小分子挥发所致。建议如下：
1.TPE配混体系，尽量选择VOC挥发小的操作油及加工助剂。操作油应选择氢化度高的品种。
2.TPE共混料。充分冷却后打包，料粒的气味会小些。
3.TPE制品加工。高温注塑成型，气味难免，油的含量越大，气味越大。但加工成品冷却后，制品气味会慢慢变淡。
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