常压等离子体处理后超高模量聚乙烯的老化  

Study on the aging effects of atmospheric plasma treatments on ultra high modulus polyethlene fibers

作　　者：吕雪娜[1] 邱夷平[1] 

机构地区：[1]东华大学纺织学院,上海200051

出　　处：《纺织科技进展》2006年第3期42-44,共3页Progress in Textile Science & Technology

摘　　要：研究了常压等离子体处理后，超高模量聚乙烯纤维的老化过程。超高模量聚乙烯纤维经等离子体处理后，被贮存在湿度为0，温度分别为-80℃、250C的环境中，和温度为25℃，湿度分别为0、100％的环境中。测试老化时间分别为0，7，15和30天时，试样的层间剪切力波及接触角。经等离子体处理后，超高模量聚乙烯纤维的层间剪切力比未处理纤维高3～4倍。老化过程中，温度越高，湿度越大，纤维的层间剪切力下降速度越快。等离子体处理后，超高模量聚乙烯纤维的接触角由128°降至73°。老化过程中，接触角逐渐增大，但始终低于未处理纤维。湿度越高，接触角的增大速度越快。The aging effects of atmospheric plasma treatments on ultra high modulus polyethylene （UHMPE）fibers are studied. UHMPE fibers are treated and then stored at temperatures varying -80 ℃ to 25 ℃ on the same humidity 0M and on humidities varying 0% to 100% at the same tempera ture 25℃. The samples are tested for fiber/epoxy interfacial shear strength and contact angle measurements at time intervals of 0, 7, 15 and 30 days after initial plasma treatment. Interracial shear strengths （IFSS） for plasma treated fibers are 3 - 4 times as high as that of the control. With the decrease of temperature,the IFSS for the plasma treated fibers decreased more slowly during aging. And with the increase of humidity, the IFSS for the plasma treated fibers decreased more quickly during aging. The contact angle drops dramatically from 128 for the control specimen to 73 for the treated specimens. The contact angle measurements increased during aging, but still lower than the control specimen. The higher moisture, the more quickly increase of the contact angle during aging.

关 键 词：耐温淀粉酶 退浆 工艺 地衣芽孢杆菌 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]