PPA------------------------1

EMS Grivory系列PPA型号特点简介；

PPA (Polyphthalamide ) 聚邻苯二甲酰胺，在高温高湿状态下，PPA的抗拉强度比尼龙6高20%，比尼龙66更高；PPA材料的弯曲模量比尼龙高20%，硬度更大，能抗长时间的拉伸蠕变；且PPA的耐汽油、耐油脂和冷却剂的能力也比PA强；一种耐高温尼龙，这种材料可以耐200℃的持续高温，并且还能保持良好的尺寸稳定性。聚邻苯二甲酰胺（简称PPA）树脂是以对苯二甲酸或邻苯二甲酸为原料的半芳香族聚酰胺。既有半结晶态的，也有非结晶态的，其玻璃化温度在255°F左右。非结晶态的PPA主要用于要求阻隔性能的场合；半结晶态的PPA树脂主要用于注塑加工，也用于其它熔融加工工艺。下文主要介绍后者——半结晶态PPA树脂，特别注明的除外。半结晶态PPAS的熔点约为590°F，以不透明矩形切片的形式供应。

EMS Grivory系列PPA 同系列通用型号介绍

Grivory G 16 Aromatic; Barrier Resin; Food Contact Acceptable

Grivory G 21 Aromatic; Barrier Resin; Food Contact Acceptable

Grivory G 25 Aromatic; Barrier Resin; Food Contact Acceptable

Grivory GM-4H Aromatic; Medium Heat Resistance

Grivory GTR 45 Aromatic; Barrier Resin; Food Contact Acceptable

Grivory GV-2 FWA black 9225 Aromatic; Food Contact Acceptable

Grivory GV-2 FWA nat Aromatic; Food Contact Acceptable

Grivory GV-2H Nylon Aromatic

Grivory GV-2H black Aromatic

Grivory GV-4 FWA black 9225 Aromatic; Food Contact Acceptable

Grivory GV-4 FWA nat Aromatic; Food Contact Acceptable

Grivory GV-4H Aromatic

Grivory GV-5 FWA nat Aromatic; Food Contact Acceptable

Grivory GV-5H Aromatic

Grivory GV-5HL Aromatic; Good UV Resistance

Grivory GV-6 FWA black 9225 Aromatic; Food Contact Acceptable

Grivory GV-6 FWA nat Aromatic; Food Contact Acceptable

Grivory GV-6H Aromatic

Grivory GV-6H black Aromatic; High Impact Resistance

Grivory GVL-4H nat High Heat Resistance

Grivory GVL-5H black 9915 High Heat Resistance

Grivory GVL-5H nat High Heat Resistance

Grivory GVL-6H black 9915 High Heat Resistance

Grivory GVL-6H nat High Heat Resistance

Grivory GVN-35H black 9915 Aromatic; High Impact Resistance

Grivory GVN-5H black 9915 Aromatic; Good Flow; Good Mold Release

Grivory GVS-5H black 9915 Aromatic

Grivory GVS-5H nat Aromatic

Grivory GVX-5 H Aromatic; Good Flow; Good Mold Release

Grivory GVX-5 H nat Aromatic

Grivory GVX-6 H black 9915 Aromatic; Good Flow; Good Mold Release

Grivory GVX-6 H nat Aromatic; Good Flow; Good Mold Release

Grivory GVX-65 H black 9915 Aromatic; Good Flow; Good Mold Release

Grivory GVX-65 H nat Aromatic; Good Flow; Good Mold Release

Grivory GVX-7 H black 9915 Aromatic; Good Flow; Good Mold Release

Grivory GVX-7 H nat Aromatic; Good Flow; Good Mold Release