聚酰亚胺短切纤维及其表面处理对丁异戊橡胶性能的影响  

Influence of polyimide chopped fiber and its surface treatment on properties of butadiene-isoprene rubber

作　　者：刘辉 曾金芳[1] 余惠琴[1] 朱文苑[1] LIU Hui;ZENG Jinfang;YU Huiqin;ZHU Wenyuan(Xi’an Research Institute of Aerospace Composites,Xi’an 710025,China)

机构地区：[1]西安航天复合材料研究所,陕西西安710025

出　　处：《弹性体》2018年第6期10-14,共5页China Elastomerics

摘　　要：将聚酰亚胺(PI)纤维作为耐烧蚀填料加入到丁异戊橡胶(BIR)中,可显著改善BIR烧蚀性能,当PI加入量为10份时,线烧蚀率从0.395mm/s降至0.149mm/s。分别用酸、碱、偶联剂、胶黏剂对PI短切纤维进行表面处理,分析不同处理方式对BIR复合材料性能的影响。结果表明,纤维表面处理可改善PI/BIR复合材料的力学性能,偶联剂处理后,其拉伸强度可达到9.08MPa。Polyimide(PI)fiber which significantly improved BIR ablation performance as an ablative filler was added to butadiene-isoprene rubber(BIR).When the amount was10parts,the linear ablation rate decreased from0.395mm/s to0.149mm/s.The surface treatment of PI chopped fibers with acid,alkali,coupling agent and adhesive was carried out to analyze the effects of different treatment methods on the properties of BIR composites.The result indicated that the surface treatment of fiber improved the mechanical properties of PI/BIR composites.After coupling agent treatment,the tensile strength of the composite reached9.08MPa.

关 键 词：聚酰亚胺短切纤维 表面处理 丁异戊橡胶 烧蚀性能 力学性能 

分 类 号：TQ342.731[化学工程—化纤工业]