ABS/PBT/弹性体三元共混合金的研究  

Study on ABS/PBT/Elastomer Blend Alloys

作　　者：陈晓浪[1] 罗筑[2] 于杰[3] 谭红 陈兴江 郭少云[1] 

机构地区：[1]高分子材料工程国家重点实验室四川大学高分子研究所,四川成都610065 [2]贵州大学材料中心,贵州贵阳550003 [3]贵州省材料技术创新基地,贵州贵阳550014

出　　处：《塑料工业》2005年第6期16-18,共3页China Plastics Industry

基　　金：国家863计划项目资助(2003AA32×230);贵州省科学基金资助(黔基合计字20023006)

摘　　要：研究了弹性体NBR和SBS对ABS/PBT共混合金体系的力学性能和熔体质量流动速率的影响,并对共混合金的相容性进行了研究。结果表明加入弹性体NBR后,共混合金在保持较好刚性的同时,断裂伸长率和韧性得到了较大的改善。当NBR用量为20份时,共混合金的断裂伸长率提高了313%,冲击强度提高了54%;SBS对ABS/PBT共混合金的增韧效果不明显,加入弹性体后,ABS/PBT共混合金体系的粘度增大,MFR降低,但仍明显好于纯ABS。The influence of elastomers NBR and SBS on the mechanical properties and melt flow rate of ABS/PBT alloys was studied.The compatibility of the alloy systems was analyized by means of SEM.The results showed that the addition of NBR made the toughness of the alloy improved obviously and kept the tensile strength at acceptable level.When the content of NBR was 20 phr,the elongation at break of the alloy increased by 313%,while the impact strength increased by 54%;the toughening effect of SBS on ABS/PBT alloy was not obvious;after the addition of elastomer,the viscosity of ABS/PBT alloy increased,MFR decreased,but still better than that of pure ABS.

关 键 词：NBR SBS ABS PBT 共混合金 增韧 

分 类 号：TQ334[化学工程—橡胶工业]