一种高剥离强度和透气性的玻纤/纺粘无纺布复合滤材的制备工艺与性能  

Preparation and properties of a glass fiber/spunbond composite filter with high peel strength and permeability

作　　者：熊晨 张久政 王洪[1] XIONG Chen;ZHANG Jiuzheng;WANG Hong(Key Laboratory of Textile Science&Technology,Ministry of Education,Donghua University,Shanghai 201620,China;No.707 Research Institute Jiujiang Branch,China Shipbuilding Industry Corporation,Jiujiang 332000,China)

机构地区：[1]东华大学纺织面料技术教育部重点实验室,上海201620 [2]中国船舶重工集团公司第七〇七研究所九江分部,九江332000

出　　处：《复合材料学报》2022年第5期2398-2404,共7页Acta Materiae Compositae Sinica

摘　　要：玻纤滤材具有过滤精度高和纳污量大等优点,但其耐折和耐压性能较差,需要与非织造布复合以提高其加工性和使用寿命,但传统的上胶复合工艺容易造成玻纤复合滤材透气性下降。将热熔胶树脂颗粒通过熔喷技术以超细纤维形式均匀负载到纺粘布上,进一步利用热轧复合技术与玻纤滤材复合,得到了剥离强力高、透气性基本不变的玻纤/纺粘复合滤材。通过对比复合玻纤滤材的剥离强度和透气性变化,发现超细纤维负载量对复合滤材的性能影响最大,当负载量为8 g/m^(2)时,复合滤材剥离强度即可达到要求,对透气性也不会造成明显影响。综合考虑产品性能与生产实际,建立了最佳复合工艺为上胶量8 g/m^(2)、辊间距0.3 mm、热轧温度120℃、热轧速度15 m/min,在此工艺下玻纤滤材和纺粘布间达到了较好的粘合效果,且复合滤材透气性变化较小。Glass fiber materials,a kind of filter medium,have advantages of high filtration accuracy and large holding capacity of pollution.It is usually composited with nonwoven materials to improve its processability and service life by overcoming the poor folding ability and pressure resistance.However,the air permeability of this kind of composites will be decreased caused by the hot melt adhesive coating method.In this paper,this issue is addressed by creating a melt-blown fibrous bonding layer of hot melt resin rather than just coating a compact film between glass fiber medium and spunbond nonwoven materials.By this approach,the loading amount of melt-blown fibrous layer plays a significant role in the filtration performance of this filter medium.The results show that a high peel strength can be achieved but without compromising the permeability when loading 8 g/m^(2) melt-blown fibers.And,considering the properties of the product and the production,a filter medium product with good mechanical properties and filtration performance can be fabricated when setting the loading amount of melt-blown fibers,gauge,temperature,and speed of hot calender at 8 g/m^(2),0.3 mm,120℃and 15 m/min,respectively.

关 键 词：熔喷 玻纤滤材 热熔胶 复合 透气性 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]