CAJ | 학술논문

对不同类型吹膜级聚乙烯树脂LL1201、2426H和9455F进行了微观结构和薄质性能分析,并对其流变性能进行了对比研究,讨论了影响树脂吹膜加工的流变学参数.结果表明:2426H的支化程度较高,9455F的分子量分布宽,LL1201薄膜的综合性能优于2426H,9455F薄膜的力学性能好但雾度高.流变性能研究表明:2426H的黏流活化能量高,黏度对温度变化量敏感,2426H和9455F的黏度对剪切速率变化敏感程度接近,都大于LL1201.9455F的熔体强度高于2426H和LL1201.
대불동류형취막급취을희수지LL1201、2426H화9455F진행료미관결구화박질성능분석,병대기류변성능진행료대비연구,토론료영향수지취막가공적류변학삼수.결과표명:2426H적지화정도교고,9455F적분자량분포관,LL1201박막적종합성능우우2426H,9455F박막적역학성능호단무도고.류변성능연구표명:2426H적점류활화능량고,점도대온도변화량민감,2426H화9455F적점도대전절속솔변화민감정도접근,도대우LL1201.9455F적용체강도고우2426H화LL1201.
The microstructure and film properties of different PE resins,such as LL1201,2426H and 9455F, for film blowing were investigated.The effect of rheological parameters on film blowing of resins was discussed.The results show that:the branch degree of 2426H is high,the molecular weight distribution of 9455F is wide.the general property of LL1201 film is better than that of 2426H film, the mechanical property of 9455F film is excellent,but the haze is high.The results of rheological propertV show that:the flow activation energy of 2426H is the highest,its viscosity is the most sensitive to temperature;the sensitivity of viscosity to shear rate of 2426H and 9455F is similar,both are higher than that of LL1201:the melt strength of 9455f is higher than that of 2426H and LL1201.