梯度结构双组份纺粘水刺超细纤维非织造布透气性能数值模拟  

Numerical Prediction of Air Permeability for Bicomponent Spunbond-Spunlance Microfiber Nonwoven Materials with Gradient Structure

作　　者：赵宝宝 钱晓明[2] 朵永超 王震 钱幺 Baobao Zhao;Xiaoming Qian;Yongchao Duo;Zhen Wang;Yao Qian(School of Textile and Garment,Anhui Polytechnic University,Wuhu 241000,China;School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;School of Textile and Materials and Engineering,Wuyi University,Jiangmen 529020,China)

机构地区：[1]安徽工程大学纺织服装学院,安徽芜湖241000 [2]天津工业大学纺织科学与工程学院,天津300387 [3]五邑大学纺织材料与工程学院,广东江门529020

出　　处：《高分子材料科学与工程》2022年第5期81-88,共8页Polymer Materials Science & Engineering

基　　金：安徽省纺织工程技术研究中心和“纺织面料”安徽省高校重点实验室2021年度联合开放基金(2021AETKL16);2021年度安徽工程大学国家基金预研项目(Xjky2020043);安徽工程大学引进人才科研启动基金(2020YQQ012)。

摘　　要：为探究梯度结构对双组份纺粘水刺超细纤维非织造布透气性能的影响,采用三步法工艺制备了系列梯度结构双组份纺粘水刺超细纤维非织造布并测试其特征参数;利用Geodict软件建立了梯度结构双组份纺粘水刺超细纤维非织造布的三维纤维分布模型,分析了梯度结构对超细纤维非织造布的流速、流线和流场压力的影响,预测了其透气系数,结果分别为3544.07 mDarcy,2527.90 mDarcy,2320.68 mDarcy,1860.18 mDarcy和1770.46 mDarcy。得到的模拟结果与实验数据吻合良好,验证了模拟结果的有效性,揭示了梯度结构与性能之间的构效关系,且表明梯度结构明显的双组份纺粘水刺超细纤维非织造布具有较高的透气性能。In order to investigate the effect of gradient structure on the air permeability of bicomponent spunbond-spunlance microfiber nonwoven materials,a series of bicomponent spunbond-spunlance microfiber nonwoven materials with gradient structure were prepared by three-step process and their characteristic parameters were tested.The 3D fiber distribution modules of bicomponent spunbond-spunlance microfiber nonwoven materials with gradient structure were established by using Geodict software.The influences of gradient structure on the velocity distribution,streamlines and pressure distribution of microfiber nonwoven materials were analyzed.The permeability coefficients of M1,M2,M3,M4 and M5 were predicted,and the values are 3544.07 mDarcy,2527.90 mDarcy,2320.68 mDarcy,1860.18 mDarcy and 1770.46 mDarcy,respectively.The simulation results are in good agreement with the experimental data,which verify the validity of the simulation results and reveal the structure-activity relationship between the gradient structure and performance.Furthermore,the results indicate the bicomponent the spunbond-spunlance microfiber nonwoven material with obvious gradient structure has higher air permeability.

关 键 词：非织造布 透气性 超细纤维 纺粘水刺 梯度结构 

分 类 号：TS176[轻工技术与工程—纺织材料与纺织品设计]