华南师范大学学报(自然科学版)
華南師範大學學報(自然科學版)
화남사범대학학보(자연과학판)
JOURNAL OF SOUTH CHINA NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)
2014年
6期
75-79
,共5页
聚丙烯%丙烯腈-丁二烯-苯乙烯%相容剂%活性碳酸钙%力学性能
聚丙烯%丙烯腈-丁二烯-苯乙烯%相容劑%活性碳痠鈣%力學性能
취병희%병희정-정이희-분을희%상용제%활성탄산개%역학성능
polypropylene%acrylonitrile-butadiene styrene%compatibilizer%active micro-sized calcium carbonate%mechanical strength
将乙烯-醋酸乙烯共聚物( EVA)、苯乙烯-丁二烯-苯乙烯( SBS)、聚丙烯接枝马来酸酐( PP-g-MAH)3种不同种类的相容剂分别加入PP/ABS(70/30)中,通过同向双螺杆挤出机熔融共混制得PP/ABS共混物和高含量活性碳酸钙( CaCO3)填充PP/ABS复合材料.利用熔体流动速率仪、电子万能试验机、记忆式冲击试验机研究了相容剂类型和含量对PP/ABS共混物及其CaCO3填充复合材料力学性能和加工流动性的影响.结果表明,PP-g-MAH对PP/ABS共混物具有较好的增容效果.当PP-g-MAH含量为30 phr时,使PP/ABS/CaCO3的拉伸强度提高42%,弯曲强度提高37.5%.由于相容剂PP-g-MAH的增韧作用,当CaCO3用量为60%时,PP/ABS/CaCO3复合材料仍然具有较好的力学强度和加工流动性.
將乙烯-醋痠乙烯共聚物( EVA)、苯乙烯-丁二烯-苯乙烯( SBS)、聚丙烯接枝馬來痠酐( PP-g-MAH)3種不同種類的相容劑分彆加入PP/ABS(70/30)中,通過同嚮雙螺桿擠齣機鎔融共混製得PP/ABS共混物和高含量活性碳痠鈣( CaCO3)填充PP/ABS複閤材料.利用鎔體流動速率儀、電子萬能試驗機、記憶式遲擊試驗機研究瞭相容劑類型和含量對PP/ABS共混物及其CaCO3填充複閤材料力學性能和加工流動性的影響.結果錶明,PP-g-MAH對PP/ABS共混物具有較好的增容效果.噹PP-g-MAH含量為30 phr時,使PP/ABS/CaCO3的拉伸彊度提高42%,彎麯彊度提高37.5%.由于相容劑PP-g-MAH的增韌作用,噹CaCO3用量為60%時,PP/ABS/CaCO3複閤材料仍然具有較好的力學彊度和加工流動性.
장을희-작산을희공취물( EVA)、분을희-정이희-분을희( SBS)、취병희접지마래산항( PP-g-MAH)3충불동충류적상용제분별가입PP/ABS(70/30)중,통과동향쌍라간제출궤용융공혼제득PP/ABS공혼물화고함량활성탄산개( CaCO3)전충PP/ABS복합재료.이용용체류동속솔의、전자만능시험궤、기억식충격시험궤연구료상용제류형화함량대PP/ABS공혼물급기CaCO3전충복합재료역학성능화가공류동성적영향.결과표명,PP-g-MAH대PP/ABS공혼물구유교호적증용효과.당PP-g-MAH함량위30 phr시,사PP/ABS/CaCO3적랍신강도제고42%,만곡강도제고37.5%.유우상용제PP-g-MAH적증인작용,당CaCO3용량위60%시,PP/ABS/CaCO3복합재료잉연구유교호적역학강도화가공류동성.
PP/ABS blends and their composites filled by active micro-sized calcium carbonate ( CaCO3 ) were pre-pared by a co-rotating twin-screw extruder using EVA ( ethylene-vinyl acetate copolymer ) , SBS ( styrene-butadi-ene-styrene) and PP-g-MAH ( maleic anhydride grafted polypropylene) as compatibilizers.The effect of kinds and contents of compatibilizers on mechanical properties and processing fluidity were measured by melt flow rate instru-ment, electron universal testing machine and impact testing machine.The results showed that PP-g-MAH exhibited the best compatibilization on the PP/ABS blends.At the content of PP-g-MAH of 30 phr, the tensile and flexural strength of PP/ABS/CaCO3 composites increased by 42%and 37.5%, respectively.As the PP-g-MAH was used as compatibilizers, 60%CaCO3 filled PP/ABS(70/30) blend has good mechanical strength and processing fluidity.