CAJ | 학술논문

以马来酸酐接枝反式-1，4-聚异戊二烯(TPI-g-MAH)，马来酸酐接枝乙烯–辛烯共聚物(POE-g-MAH)、马来酸酐接枝三元乙丙橡胶(EPDM-g-MAH)和马来酸酐接枝氢化苯乙烯–丁二烯–苯乙烯共聚物(SEBS-g-MAH)为增韧剂，以质量分数为15%的玻璃纤维(GF)为增强剂，通过双螺杆挤出机制备了一系列增韧型GF增强尼龙(PA)6复合材料，研究了增韧剂种类及含量对复合材料力学性能和熔体流动速率(MFR)的影响。结果表明，随着增韧剂含量的增加，复合材料的缺口冲击强度逐渐上升，拉伸强度、弯曲强度和MFR逐渐下降；其中，EPDM-g-MAH对复合材料的增韧效果最好，TPI-g-MAH和POE-g-MAH次之，SEBS-g-MAH的增韧效果最差；当增韧剂质量分数均为10%时，TPI-g-MAH增韧的复合材料的缺口冲击强度与EPDM-g-MAH增韧的已相差不大，且相对于其它增韧剂， TPI-g-MAH增韧的复合材料的拉伸强度、弯曲强度和MFR下降幅度最小。综合可知，TPI-g-MAH对GF增强PA6复合材料增韧效果明显且对其强度和MFR影响最小，是一种新型高效的增韧改性剂。
이마래산항접지반식-1，4-취이무이희(TPI-g-MAH)，마래산항접지을희–신희공취물(POE-g-MAH)、마래산항접지삼원을병상효(EPDM-g-MAH)화마래산항접지경화분을희–정이희–분을희공취물(SEBS-g-MAH)위증인제，이질량분수위15%적파리섬유(GF)위증강제，통과쌍라간제출궤제비료일계렬증인형GF증강니룡(PA)6복합재료，연구료증인제충류급함량대복합재료역학성능화용체류동속솔(MFR)적영향。결과표명，수착증인제함량적증가，복합재료적결구충격강도축점상승，랍신강도、만곡강도화MFR축점하강；기중，EPDM-g-MAH대복합재료적증인효과최호，TPI-g-MAH화POE-g-MAH차지，SEBS-g-MAH적증인효과최차；당증인제질량분수균위10%시，TPI-g-MAH증인적복합재료적결구충격강도여EPDM-g-MAH증인적이상차불대，차상대우기타증인제， TPI-g-MAH증인적복합재료적랍신강도、만곡강도화MFR하강폭도최소。종합가지，TPI-g-MAH대GF증강PA6복합재료증인효과명현차대기강도화MFR영향최소，시일충신형고효적증인개성제。
Using maleic anhydride (MAH) grafted trans-1,4-polyisoprene (TPI-g-MAH),MAH grafted ethylene-octene copolymer(POE-g-MAH),MAH grafted ethylene-propylene-diene block copolymer (EPDM-g-MAH) and MAH grafted styrene-ethylene-butylene-styrence block copolymer (SEBS-g-MAH) as toughening agent,glass fiber (GF) with mass fraction of 15%as enhancer,a series of toughened GF reinforced nylon(PA)6 composites were prepared by twin screw extruder. The effects of the toughening agents on the mechanical properties and melt flow rate (MFR) of the toughened composites were investigated. The results show that as the content of the toughening agents increases,the tensile strength,flexural strength as well as MFR decrease but the notched impact strength increases significantly,the toughening effect of EPDM-g-MAH is the best,the effects of TPI-g-MAH and POE-g-MAH follow,and the SEBS-g-MAH is the worst of all. When the mass fraction of toughening agent is 10%,the notched impact strength of TPI-g-MAH toughened composite is the same with that of EPDM-g-MAH toughened composite,meanwhile, comparing with other toughening agent,TPI-g-MAH can minimize the decrease degrees of the tensile strength,flexural strength and MFR of the toughened composite. In summary,TPI-g-MAH has obvious toughening effect on the GF reinforced PA6 composite and gets little impact on strength and MFR,it is a new and efficient toughening agent for the GF reinforced PA6 composite.