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為什么制備的PVDF溶液變色

相關標簽:沙伯基礎 PVDF、美國舒爾曼ICO Polymers PVDF、德國Melos PVDF塑料膠粒、低粘度 PVDF、氣味低到無 PVDF、高分子量 PVDF塑料膠粒

制備的PVDF溶液的變色是由于溶劑的高含水量,并且還可能導致一些氫氧化鋰掉入。鋰在PVDF上取代了F.PVDF是聚偏二氟乙烯。它的外觀是半透明或白色粉末或顆粒。分子鏈緊密排列并具有強氫鍵。氧指數為46%,不燃,結晶度為65%~78%,密度為1.77~1.80g/cm3,熔點為172℃,熱變形溫度為112~145℃,長期使用溫度為-40~150°C。它結合了氟樹脂和通用樹脂的特性。它具有良好的耐化學性,耐高溫性,抗氧化性,耐候性和耐輻射性。它還具有壓電性,介電性能,熱電性等。特殊性能是氟塑料生產中的第二大產品。 。以上文獻若需轉載請備注出處:pbt塑料 //shanglikaiguan.cn/

延伸閱讀—PVDF 美國Techmer HiFill® PVDF CF15 BK應用案列
注射成型 黑色
填料:碳纖維增強材料。
參考數據
性能項目 試驗條件[狀態] 測試方法 測試數據
比重 ASTMD792 1.75 g/cm3
收縮率-流動(3.18mm) ASTMD955 0.30 %
吸水率(24hr) ASTMD570 0.020 %
抗張強度(斷裂) ASTMD638 51.7 MPa
伸長率(斷裂) ASTMD638 2.5 %
彎曲模量 ASTMD790 8550 MPa
彎曲強度 ASTMD790 124 MPa
洛氏硬度(R級) ASTMD785 106
載荷下熱變形溫度(1.8MPa,未退火) ASTMD648 168 °C
線形熱膨脹系數-流動 ASTMD696 4.5E-5 cm/cm/°C
體積電阻率 ASTMD257 1.0E+2to1.0E+6 ohmscm
UL阻燃等級(0.8mm) UL94 V-0
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