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賽鋼料的性能

相關標簽:波蘭ZAT POM、美國Tyne POM、三井化學 POM塑膠原材料、高強度 POM、合金 POM、高剛性 POM塑膠原材料

賽鋼料的性能:聚甲醛英文名稱:Poly甲醛(POM)具有高強度,剛度,良好的彈性,良好的耐磨性和耐磨性。其機械性能優異,比強度可達到50.5MPa,比剛度可達到2650MPa,非常接近金屬。POM的機械性能隨溫度變化不大,共聚POM的變化略大于均聚物POM。POM的沖擊強度高,但常規沖擊不如ABS和PC。POM對缺口很敏感,缺口可將沖擊強度降低多達90%。POM的疲勞強度非常突出。經過10次交替載荷,疲勞強度可以達到35MPa,而PA和PC僅為28MPa。POM的蠕變與PA相似,在20℃,21MPa和3000h時蠕變僅為2.3%,受溫度的影響很小。POM具有較小的摩擦系數和良好的耐磨性(POM>PA66>PA6>ABS>HPVC>PS>PC)。它的極限PV值大且自潤滑性好。當在研磨過程中承受高負荷時,POM產品易于發出尖叫聲。聚碳酸酯是無色透明,耐熱,耐沖擊,阻燃的BI級,在正常使用溫度下具有良好的機械性能。與接近聚甲基丙烯酸甲酯的性能相比,聚碳酸酯具有良好的抗沖擊性,高折射率和良好的加工性能。它不需要添加劑即可具有UL94V-0阻燃性。但是,聚甲基丙烯酸甲酯比聚碳酸酯便宜,并且可以通過本體聚合來生產大規模裝置。聚碳酸酯的耐磨性差。一些用于耐磨應用的聚碳酸酯裝置需要對表面進行特殊處理。 。以上文獻若需轉載請備注出處:pbt塑料 //shanglikaiguan.cn/

延伸閱讀—POM 美國RTP 841 DEL應用案列
其它 其它 注塑
參考數據
性能項目 試驗條件[狀態] 測試方法 測試數據
比重 ASTM D792 1.56 g/cm3
收縮率 流動3.18mm ASTM D955 2.0 %
吸水率 ASTM D570 0.3 %
拉伸模量 ASTM D638 4140 MPa
抗張強度 ASTM D638 45.5 MPa
伸長率 ASTM D638 7.0 %
彎曲模量 ASTM D790 3450 MPa
彎曲強度 ASTM D790 76.5 MPa
懸臂梁缺口沖擊強度 3.18mm ASTM D256 53.4 J/m
懸臂梁無缺口沖擊強度 3.18mm ASTM D4812 534 J/m
熱變形溫度 0.45MPa,未退火 ASTM D648 160
熱變形溫度 1.8MPa,未退火 ASTM D648 116
體積電阻率 ASTM D257 1.0E+14 ohms*cm
阻燃等級 UL 94 HB
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