相關標簽:LG化學 PMMA、沙伯基礎 PMMA、美國RTP PMMA塑料、光澤低 PMMA、吹塑薄膜 PMMA、中等分子量 PMMA塑料
亞克力材料耐高溫多少度?
雖然玻璃化溫度達到104℃但是,在不同的工作條件下,最高連續使用溫度在65°C至95°C之間變化。熱變形溫度為約96℃,維卡軟化點為約113℃。通過使單體與甲基丙烯酸丙酯或乙二醇丙烯酸二酯丙烯酸酯共聚可以提高耐熱性。聚甲基丙烯酸甲酯的耐寒性也很差,脆化溫度約為9.2℃。聚甲基丙烯酸甲酯的熱穩定性適中,優于聚氯乙烯和聚甲醛,但不如聚烯烴和聚苯乙烯。熔融加工溫度范圍很廣。
專業防火阻燃PMMA、高透明PMMA、耐劃痕PMMA、耐磨PMMA、耐候抗UVPMMA、食品級PMMA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 其它 | |
標準材料 |
性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
吸水率 | 24hr | ASTM D-570 | 0.3 | % |
熔融指數 | 230°C.3.8kg | ASTM D-1238 | 6.0 | g/10min |
比重 | ASTM D-792 | 1.19 | ||
全光線透射系數 | 3.2mm | ASTM D-1003 | 93 | % |
折射率 | nd | ASTM D-542 | 1.49 | |
成形收縮率 | ASTM D-955 | 0.2-0.6 | % | |
抗彎強度 | 1/4棒 | ASTM D-790 | 1050 | Kg/cm |
延展率 | ASTM NO.1 | ASTM D-638 | 5 | % |
懸臂梁式沖擊強度 | 1/4 | ASTM D-256 | 1.6 | kg.cm/cm |
抗壓強度 | ASTM D-695 | 1050 | Kg/cm | |
彎曲彈性模量 | 1/4棒 | ASTM D-790 | 3.1×10 | Kg/cm |
抗拉強度 | ASTM NO.1 | ASTM D-638 | 700 | Kg/cm |
洛氏硬度 | M scale | ASTM D-785 | 92 | |
表面電阻系數 | JIS K-6911 | >1×10 | Ω | |
耐電弧性 | JIS K-6911 | 耐電弧性 | ||
絕緣擊穿強度 | JIS K-6911 | 20 | kv/mm | |
體積電阻系數 | JIS K-6911 | >1×10 | Ω.m | |
介質損耗角正切 | 60HZ | JIS K-6911 | 0.05 | |
介電常數 | 60HZ | JIS K-6911 | 3.7 | |
熱傳導系數 | ASTM C-177 | 5×10 | cal/s/cm/°C | |
比熱 | 0.35 | cal/g/°C | ||
載荷撓曲溫度 | 18.56kg/cm | ASTM D-648 | 89 | °C |
線膨脹系數 | ASTM D-696 | 6×10 | cm/cm/°C | |
維卡軟化點 | 1kg | ASTM D-1525 | 104 | °C |
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