【摘要】 利用介质阻挡放电改善聚丙烯纤维润湿性能,通过润湿天平法测量装置测量改性后纤维的接触角并计算黏附功,研究处理功率和处理时间对聚丙烯纤维润湿性能的影响。结果表明:等离子体处理后聚丙烯纤维衰退接触角的微小变化能导致其黏附功的较大变化,不同处理功率和时间下的改性聚丙烯纤维黏附功衰退速度在前5 d最为急剧,到18 d左右时样品黏附功衰退速度趋于缓和,基本达到平衡。在功率为200 W,处理时间为0.31 s的条件下改性后纤维的润湿性能衰退比较缓慢,而且最后的黏附功比较大。更多还原

【Abstract】 The wettability of polypropylene fiber was improved by DBD.Contact angles of polypropylene fibers were measured by a wetting balance and the adhesion power was calculated,and then the effect of treating power and time on the decay of wettability of polypropylene fiber was researched when using DBD treatment.The results indicate that any slight change of contact angle of the treated polypropylene fiber will bring about marked change of adhesion power decay of the fiber.The rate of decay of polypropylene fiber treated by DBD at different powers and durations of treatment exhibits very fast in the first 5 days and slows down and tends to equilibrium after 18 days.The decay of wettability of polypropylene fiber treated by DBD at power=200 W and time=0.31 s is slower and residual adhesion power is larger.更多还原