CAJ | 학술논문

利用γ-氨丙基三乙氧基硅烷偶联剂(KH550)对高岭土(kaolin)进行表面改性，制备了改性kaolin (M-kaolin)，然后将聚丙烯(PP)接枝上顺丁烯二酸酐(MAH)，制备了PP-g-MAH，将两者经过熔融共混制备了PP-g-MAH/M-kaolin复合材料，研究了M-kaolin添加量对复合材料力学性能和热稳定性的影响。结果表明，当M-kaolin粒子质量分数为1%时，PP-g-MAH/M-kaolin复合材料的拉伸强度和断裂伸长率达到最大值，与纯PP相比分别提高了10.4%和122%；当M-kaolin粒子质量分数为2%时，复合材料的缺口冲击强度达到最大值，较纯PP提高了96.5%，且热稳定性最好。这表明kaolin粒子经KH550改性且PP经MAH接枝后，PP与kaolin相容性得到优化，从而使复合材料的强度和韧性都得到了提高。
이용γ-안병기삼을양기규완우련제(KH550)대고령토(kaolin)진행표면개성，제비료개성kaolin (M-kaolin)，연후장취병희(PP)접지상순정희이산항(MAH)，제비료PP-g-MAH，장량자경과용융공혼제비료PP-g-MAH/M-kaolin복합재료，연구료M-kaolin첨가량대복합재료역학성능화열은정성적영향。결과표명，당M-kaolin입자질량분수위1%시，PP-g-MAH/M-kaolin복합재료적랍신강도화단렬신장솔체도최대치，여순PP상비분별제고료10.4%화122%；당M-kaolin입자질량분수위2%시，복합재료적결구충격강도체도최대치，교순PP제고료96.5%，차열은정성최호。저표명kaolin입자경KH550개성차PP경MAH접지후，PP여kaolin상용성득도우화，종이사복합재료적강도화인성도득도료제고。
γ-aminopropyltriethoxysilane (KH550) was used to modify kaolin for preparing surface modified kaolin (M-kaolin) and polypropylene (PP) was grafted with MAH for preparing PP-g-MAH,then a series of PP-g-MAH/M-kaolin composites were prepared by melt blending method. The results show that when the mass fraction of M-Kaolin is 1%,the tensile strength and elongation at break of the composite reach the maximum and improves by 10.4%and 122%respectively comparing with PP,when the mass fraction of M-Kaolin is 2%,the composite has the highest impact strength and improves by 96.5%comparing with PP, meanwhile,it's thermal stability is best. These indicate that kaolin being modified by KH550 and PP being grafted with MAH can optimize the compatibility of kaolin and PP and improve the strength and toughness of the composite.