Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surf...Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surface modification of polybutylene terephthalate(PBT) melt blown nonwovens is realized by plasma induced and grafted process.Main parameters affecting low temperature plasma inducement and graft modification of acrylicacid onto PBT melt blown nonwovens are studied.展开更多
运用扩散空气和氩气等离子体对聚丙烯非织造布进行表面改性实验。用朗缪尔双探针诊断等离子体的电子温度和电子密度随气压和等离子体放电功率的变化关系;改性结果用聚丙烯非织造布表面蒸馏水的接触角变化和X射线光电子能谱(XPS)表征,分...运用扩散空气和氩气等离子体对聚丙烯非织造布进行表面改性实验。用朗缪尔双探针诊断等离子体的电子温度和电子密度随气压和等离子体放电功率的变化关系;改性结果用聚丙烯非织造布表面蒸馏水的接触角变化和X射线光电子能谱(XPS)表征,分析了改性后样品表面亲水性的时效性;利用扫描电子显微镜(SEM)对聚丙烯非织造布表面形貌进行了观察。结果表明,等离子体处理后的样品表面由于引入了C O,O C O等含氧基团,使聚丙烯非织造布表面的亲水性明显提高;空气等离子体处理样品的亲水性优于氩气等离子体处理的样品。展开更多
基金Sponaored by the Science & Tochnology Fund of Shanghai Education Commission
文摘Melt blown nonwovens are good filtration media for leukocyte depletion in view of their excellent structures.And the critical wetting surface tension(CWST)of nonwovens media affects the adhesion to leukocytes.The surface modification of polybutylene terephthalate(PBT) melt blown nonwovens is realized by plasma induced and grafted process.Main parameters affecting low temperature plasma inducement and graft modification of acrylicacid onto PBT melt blown nonwovens are studied.
文摘运用扩散空气和氩气等离子体对聚丙烯非织造布进行表面改性实验。用朗缪尔双探针诊断等离子体的电子温度和电子密度随气压和等离子体放电功率的变化关系;改性结果用聚丙烯非织造布表面蒸馏水的接触角变化和X射线光电子能谱(XPS)表征,分析了改性后样品表面亲水性的时效性;利用扫描电子显微镜(SEM)对聚丙烯非织造布表面形貌进行了观察。结果表明,等离子体处理后的样品表面由于引入了C O,O C O等含氧基团,使聚丙烯非织造布表面的亲水性明显提高;空气等离子体处理样品的亲水性优于氩气等离子体处理的样品。