相關標簽：美國Ovation TPU、愛彼斯 TPU、臺灣高鼎 TPU塑料米、良好的顏色穩定性 TPU、耐低溫良好 TPU、壓縮模塑 TPU塑料米
?TPU料注塑時注意事項：
TPU是一種常見的材料，稱為熱塑性聚氨酯彈性體橡膠。這種材料可以在持續加熱下軟化，但在常溫下可以保持不變。TPU具有很強的高張力和高拉力。它是一種成熟的環保材料，安全，無毒，無害，可以回收再利用。TPU注塑成型時應注意什么？今天，我將向您介紹TPU注塑成型的注意事項。1.物料干燥由于TPU容易吸收水分并且容易水解，因此未完全干燥的TPU原料很容易導致加工困難。注射產品的表面將有氣泡或銀紋，擠出產品的表面將顯示不平整，暗淡，泡沫和泡沫。為確保生產的零缺陷和產品質量，建議在加工之前必須將TPU原料充分干燥至水分含量低于0.05％。如果使用碳粉或母料進行染色，則必須將其與TPU天然色料充分混合并一起干燥。通常，使用循環空氣干燥機或除濕干燥機來干燥TPU。根據硬度，建議的干燥溫度為80-110℃，干燥時間約為3小時。2，材料著色除某些特殊需要外，TPU通常以自然色提供。用戶可以輕松地為TPU著色。直接，簡單和可靠的方法是添加調色劑或色母料進行著色。建議用量如下：碳粉：0.2-0.5％，色母：1-4％3.再生材料加工可以將噴嘴材料，洗衣機材料或不良的最終產品壓碎，然后與新材料混合使用，但使用前必須再次干燥。對于某些機械物理要求，不允許將再生材料用于注塑工藝。占全部原材料的30％以上。擠出的再生材料應單獨加工或添加到新的注塑材料中。此外，回收材料不應存放太長時間。使用干燥的頂部。無法回收的廢料可以被焚化以獲得熱量。4，注塑通常，單螺桿三級注塑機適用于TPU注塑加工。與其他塑料相比，由于TPU熔融時具有很高的粘度，因此很容易在料筒中產生高剪切力并破壞TPU本身的物理性能。通常，螺桿L/D比為約16-20且壓縮比為2.0-25的注射成型機是更合適的。5.擠出加工注射壓力，保持壓力，注射速度和背壓的調節和控制對于產品尺寸穩定性和釋放性能非常重要。保壓太低容易導致產品凹陷，太高則容易導致產品脫模。注射壓力保持壓力應在100-1200bar的范圍內可調，注射壓力應設置為僅消除產品壓降，通常將保持壓力設置為注射壓力的50％。為確保均勻塑化，背壓應控制在注射壓力的10-25％之內。
專業高透明TPU、高彈性TPU、抗紫外線耐候耐水解抗黃變TPU、耐低溫高溫TPU、耐磨TPU、高撕裂強度TPU、醫療級TPU、食品級TPU、阻燃TPU等原材料采購請來電咨詢 。以上文獻若需轉載請備注出處：PBT樹脂 //shanglikaiguan.cn/
| 其它 其它 注塑 | |
| 工業零件汽車配件運動器材：蛙鞋、鞋飾片其他：表帶、寵物用具、滾輪、扣具 | |
| 建議干燥溫度：105℃，2-3hrs 建議加工溫度：185℃-195℃ | |
| 性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
| 磨耗性 | ASTM D-1044 | 40↓ | mg | |
| 伸長率 | ASTM D-412 | 400±50 | % | |
| 肖氏硬度 | ASTM D-2240 | 90±2A | ||
| 反撥彈性 | ASTM D-2632 | 40↑ | % | |
| 撕裂強度 | ASTM D-412 | 120±10 | kg/cm | |
| 拉力強度 | ASTM D-412 | 400±50 | kg/cm | |
| 100%抗拉模數 | ASTM D-412 | 55±10 | ||
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