CAJ | 학술논문

采用溶液聚合法合成了苯乙烯-甲基丙烯酸缩水甘油酯共聚物扩链剂KL-E4370，用红外光谱仪和差示扫描量热仪对其组成和结构进行了表征。并对其在聚乳酸(PLA)、二氧化碳环氧丙烷共聚物(PPC)、聚酰胺(PA)回收料以及PA/聚乙烯(PE)回收料中的应用进行了研究。结果表明，添加扩链剂KL-E4370，可以抑制PLA加工过程中的降解，提高其熔体强度；可以抑制PPC的“解拉链”降解，提高其耐热性；可以提高回收PA的熔体强度，与吸酸剂复配效果更佳；可以改善PA/PE回收料的相容性，提高其熔体强度。
채용용액취합법합성료분을희-갑기병희산축수감유지공취물확련제KL-E4370，용홍외광보의화차시소묘량열의대기조성화결구진행료표정。병대기재취유산(PLA)、이양화탄배양병완공취물(PPC)、취선알(PA)회수료이급PA/취을희(PE)회수료중적응용진행료연구。결과표명，첨가확련제KL-E4370，가이억제PLA가공과정중적강해，제고기용체강도；가이억제PPC적“해랍련”강해，제고기내열성；가이제고회수PA적용체강도，여흡산제복배효과경가；가이개선PA/PE회수료적상용성，제고기용체강도。
Styrene-glycidyl methacrylate copolymer chain extender KL-E4370 was synthesized by solution polymerization. Infrared spectroscopy and DSC were used to characterize the structure and composition. The applications of KL-E4370 in PLA, PPC,recycling PA and recovering PA/PE were studied. The results show that through adding chain extender KL-E4370,the degradation of PLA during processing is inhibited and the melt strength is improved;the“unzippering”degradation of PPC is inhibited and the heat resistance is improved;the melt strength of recycled PA is improved,having a better effect with an acid absorbing agent;the compatibility and the melt strength of PA/PE recycling material are improved.