TPR,浙江供应TPR厂家,TPR包PP tpr材料 TPR产品 塑胶塑料材料RN50A-CY
苯乙烯类的TPE,SBS/SEBS之是三嵌段,而且两端是硬段PS段,就是因为PS段可以相互集结在一起,产生物理交联。这个物理交联并不是很牢固,达到一定温度之后硬段会无法保持足够的凝聚力,就像冰块融化了一样。硬段丧失了支撑能力就丧失了硬段的作用了。
SBS/SEBS的硬段PS段软化点在100℃左右,而在100℃之前PS的凝结力其实已经大幅下降了,所以TPE弹性体很少能耐高温超过100℃,在100℃时候TPE就会变成橡皮泥一样。很多耐高温的产品都是用橡胶去做的,橡胶的支撑点不是物理交联的PS段,而是化学交联。硫化产生的化学交联不论是强度,稳定性,耐高温等都比物理交联要好.
产品说明Product description |
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RN50A-CY是一款经济型玩具材料。 RN50A-CY is an economic toy material
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关键特性Key characteristic |
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1.表面光亮Bright surface. 2..可喷油,丝印,上胶水,油墨Oil injection,silkscreen,can be applied with glue and ink. |
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功能Function |
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产品应用 Main application |
玩具公仔Toy dolls |
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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 |
乳白色Milky-white |
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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,12个月Ventilated dry at normal temperature,about 12 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 |
1.21±0.02 |
g/cm3 |
ASTM D792 |
干燥温度Drying temp |
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硬度Hardness |
50±5 |
shoreA |
ASTM D2240 |
干燥时间Drying time |
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拉伸强度Tensile strength |
>2 |
Mpa |
ASTM D412 |
射嘴温度Nozzle temp 190℃ |
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断裂延伸Elongation at break |
>200 |
% |
ASTM D412 |
螺筒一段温度Screw 1 temp 180℃ |
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撕裂强度Tearing strength |
>16 |
Kn/m |
ASTM D624 |
螺筒二段温度Screw 2 temp 170℃ |
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熔融指数Melt index |
>6 |
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 are 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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