相關標簽:荷蘭Witcom POM、德國BARLOG plastics POM、美國Lucent POM塑膠粒、耐候 POM、抗紫外線 POM、模塑 POM塑膠粒
賽鋼材料密度是多少?
pom塑料的密度為1.42g/cm3。POM是結晶塑料。它非常堅固,通常被稱為“鋼”。它具有優異的性能,如抗疲勞性,抗蠕變性,耐磨性,耐熱性和抗沖擊性,摩擦系數小,自潤滑性好。POM不易吸收水分,吸水率為0.22至0.25%。在潮濕的環境中具有良好的尺寸穩定性。收縮率為2.1%(更大)。在注射過程中難以控制尺寸。熱變形溫度為172°C,有兩種聚甲醛,它們具有不同的特性(均質聚甲醛具有更好的耐熱性)。POM易于分解,分解溫度為240度。分解過程中會產生刺激性和腐蝕性氣體,因此模具鋼應采用耐腐蝕材料制成。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/
其它 其它 注塑 | |
性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
比重 | ASTM D792 | 1.50 | g/cm3 | |
收縮率 | 流動3.18mm | ASTM D955 | 0.4 | % |
含水量 | 0.15 | % | ||
拉伸模量 | ASTM D638 | 8960 | MPa | |
抗張強度 | ASTM D638 | 75.8 | MPa | |
伸長率 | ASTM D638 | 1.0-2.0 | % | |
彎曲模量 | ASTM D790 | 8270 | MPa | |
彎曲強度 | ASTM D790 | 110 | MPa | |
懸臂梁缺口沖擊強度 | 3.18mm | ASTM D256 | 48.0 | J/m |
懸臂梁無缺口沖擊強度 | 3.18mm | ASTM D4812 | 214 | J/m |
熱變形溫度 | 1.8MPa,未退火 | ASTM D648 | 152 | ℃ |
阻燃等級 | UL 94 | HB |
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