相關標簽:比利時索爾維 PPA、德國開德阜 PPA、愛彼思 PPA塑膠顆粒、可熱封 PPA、導熱 PPA、脫模性能良好 PPA塑膠顆粒
PPA(聚鄰苯二甲酰胺)是聚鄰苯二甲酰胺。PPA是一種具有半結晶和非結晶結構的熱塑性功能尼龍。PPA通過鄰苯二甲酸和鄰苯二胺的縮聚獲得。它具有出色的熱,電,物理和抗性。在化學性質方面的綜合性能。優異的機械性能在200°C連續高溫,濕度,油和化學腐蝕,包括高剛性,高強度,高尺寸精度,低翹曲和穩定性,抗疲勞,抗蠕變性。主要應用主要是無定形PPA。PPA具有高硬度和優異的機械強度,例如在高溫下的彎曲,拉伸和沖擊,并且耐長期拉伸蠕變。它的剛性和強度甚至超過PPS和PEEK在120°C的高溫下。特別適合替代壓鑄合金以降低成本。PPA具有比PA46更高的熱穩定性,更好的CTI電弧電阻和紅外回流能力。即使在150°C時,PPA也能對各種油類(如汽油,柴油,機油,礦物油和變壓器油)具有出色的耐受性。PPA適用于長期戶外使用,即使在高紫外線,高濕度和高溫等極端氣候條件下也不會導致物理性能下降。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/
玻纖增強 其它 注塑 | |
GF35% |
性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
比重 | ASTM D792 | 1.48 | ||
吸水率 | ASTM D570 | 0.2 | % | |
成型收縮率 | 0.4-0.8 | % | ||
抗張強度 | ASTM D638 | 2250 | kgf/cm2 | |
伸長率 | ASTM D638 | 2.6 | % | |
伸縮強度 | ASTM D790 | 3000 | kgf/cm2 | |
彎曲彈性率 | ASTM D790 | 120000 | kgf/cm2 | |
Izod沖擊強度 | ASTM D256 | 11 | kgf.cm/cm | |
洛氏硬度 | ASTM D786 | 125 | R | |
體積電阻 | ASTM D257 | 10-16 | Ω.mm | |
內電壓 | ASTM D149 | 22 | KV/mm | |
耐電弧性 | ASTM D495 | 140 | Sec | |
熔點 | DSC | 310 | ℃ | |
熱變形溫度 | -,4.6kg/cm2 | ASTM D648 | 300 | ℃ |
熱變形溫度 | -,18.5kg/cm2 | ASTM D648 | 285 | ℃ |
阻燃性 | UL 94 | HB |
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