The effect of electron beam (e-beam) irradiation on the mechanical and thermal properties of ethylene-vinyl acetate copolymer (EVA)/ternary copolyamide (tPA) blends was studied. The crosslinking of EVA/tPA induced by e-beam irradiation was carried out over a dose range from 50 to 250 kGy with tripropylene glycol diacrylate (TPGDA), trimethylolpropane trimethacrylate (TMPTMA), pentaerythritol tetraacrylate (PETA), and dipentaerythritol hexaacrylate (DPEHA) as crosslinking co-agents. With increasing irradiation dose, the gel contents of EVA/tPA containing the co-agents increased more significantly than that of EVA/tPA. After electron beam irradiation of 250 kGy, the gel content of EVA/tPA with 3 phr TPGDA reached 81%, much higher than 22% for EVA/tPA without any co-agent. The irradiated EVA/tPA/TPGDA (70/30/3) also exhibited high tensile strength and oil-resistance properties. The addition of TPGDA and the irradiation dose are two crucial factors affecting the mechanical properties of the EVA/tPA blend.

研究了电子束（电子束）辐照对乙烯-乙酸乙烯酯共聚物（EVA）/三元共聚酰胺（tPA）共混物的机械和热性能的影响。通过电子束辐射诱导的EVA / tPA的交联反应在50至250 kGy的剂量范围内与三丙二醇二丙烯酸酯（TPGDA），三羟甲基丙烷三甲基丙烯酸酯（TMPTMA），季戊四醇四丙烯酸酯（PETA）和二季戊四醇六丙烯酸酯（DPEHA）进行作为交联助剂。随着辐照剂量的增加，含有助剂的EVA / tPA的凝胶含量比EVA / tPA的凝胶含量增加更多。在250 kGy的电子束辐照后，含3 phr TPGDA的EVA / tPA的凝胶含量达到81％，远高于不含任何助剂的EVA / tPA的22％。辐照的EVA / tPA / TPGDA（70/30/3）也表现出高拉伸强度和耐油性。TPGDA的添加和辐照剂量是影响EVA / tPA共混物机械性能的两个关键因素。