采用Kissroll工艺对聚丙烯(PP)非织造布进行亲水整理,然后经淋膜加工制备了具有亲水/疏水双面异性功能的聚乙烯膜/聚丙烯(PE/PP)复合非织造布。研究了亲水整理对淋膜剥离强度的影响,对比了淋膜前后PP亲水性能的变化,同时分析了PE/PP复合非织造布的柔韧性能。结果表明,亲水整理改变了PP非织造布原有的表面特征,并构筑了“弱边界层”,致使淋膜剥离强度下降;相对于后整理的PP非织造布,PE/PP的芯吸高度分别下降了34.3%(纯水)、28.6%(生理盐水),吸水比重分别下降44.8%(纯水)、43.2%(生理盐水);淋膜同时降低了PP的柔软度,但复合非织造布的力学性能明显提升。
Polypropylene (PP) non-woven fabric was hydrophilically finished by Kissroll process,and then polyethylene film/polypropylene (PE/PP) composite non-woven fabric with two-layer heterogeneity of hydrophilic/hydrophobic was prepared by laminating.The effect of hydrophilic finishing on the peeling strength of the laminating was studied,and the change of hydrophilic properties on PP before and after laminating was compared,the flexibility of PE/PP was analyzed simultaneously.The results shown that the hydrophilic finishing changed the original surface characteristics of the PP and constructed a “weak boundary layer”,which caused a decrease in the peeling strength of the laminating.Compared with the PP fabric after finishing,the wicking height of PE/PP decreased by 34.3% (pure water) and 28.6% (normal saline) respectively.The water absorption specific gravity decreased by 44.8% (pure water) and 43.2% (normal saline) respectively.Moreover,the softness of PP was reduced after laminating,but the mechanical properties of composite non-woven fabric were significantly improved.
[1] 郝习波,李辉芹,巩继贤,等.单向导湿功能纺织品的研究进展[J].纺织学报,2015,36(7):157-161.
[2] Xia L,Xi P,Cheng B W.Study of irradiation hydrophilic modification of polypropylene meltblown nonwovens[J].Advanced Materials Research,2013,627:348-352.
[3] Chen H,Kong L,Wang Y.Enhancing the hydrophilicity and water permeability of polypropylene membranes by nitric acid activation and metal oxide deposition[J].Journal of Membrane Science,2015,487:109-116.
[4] Zhao J,Shi I Q,Luan S,et al.Improved biocompatibility and antifouling property of polypropylene non-woven fabric membrane by surface grafting zwitterionic polymer[J].Journal of Membrane Science,2011,369(1-2):5-12.
[5] Wang K,Wang W,Yang D,et al.Surface modification of polypropylene non-woven fabric using atmospheric nitrogen dielectric barrier discharge plasma[J].Applied Surface Science,2010,256(22):6859-6864.
[6] 唐丽华,李鑫,江渊,等.等离子体引发丙烯酰胺接枝改性聚丙烯非织造布[J].纺织学报,2007,28(12):27-29.
[7] 蓝杰蕊,沈锦玉,李玖明,等.紫外光固化技术对聚丙烯非织造布的亲水改性[J].纺织学报,2017,38(5):98-103.
[8] Ren Y,Zhao J,Wang X.Hydrophilic and antimicrobial properties of acrylic acid and chitosan bigrafted polypropylene melt-blown nonwoven membrane immobilized with silver nanoparticles[J].Textile Research Journal,2018,88(2):182-190.
[9] Wang C,Yang F,Liu L F,et al.Hydrophilic and antibacterial properties of polyvinyl alcohol/4-vinylpyridine graft polymer modified polypropylene non-woven fabric membranes[J].Journal of Membrane Science,2009,345(1-2):223-232.
[10] Zhang C H,Yang F L,Wang W J,et al.Preparation and characterization of hydrophilic modification of polypropylene non-woven fabric by dip-coating PVA (polyvinyl alcohol)[J].Separation & Purification Technology,2008,61(3):276-286.
[11] 陈晶晶,吴海波.蚕丝/ES非织造布的亲水整理[J].东华大学学报(自然科学版),2015,41(5):615-619.
[12] 孙辉,于斌,朱斐超,等.汽车内饰用涤纶针刺布/聚乙烯淋膜复合材料研究[J].现代纺织技术,2017,25(4):6-9.
[13] 陈同海,贾明印,杨彦峰,等.纤维增强复合材料界面理论的研究[J].当代化工,2013(11):1558-1561.
[14] 王岚,贾永杰,张大伟,等.基于表面能理论研究盐冻循环对沥青-矿料界面粘附性的影响[J].复合材料学报,2016,33(10):2380-2389.
[15] 于宾,曾月宁,赵晓明,等.PAN预氧化纤维针刺复合滤料制备与性能研究[J].化工新型材料,2017(10):106-108.
基金资助
芜湖市科技计划项目(2017yf14,2017yf33);安徽工程大学中青年拔尖人才项目(2016BJRC007)
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