PBO纤维湿法非织造材料热压工艺  

Hot pressing process of PBO fiber wet-laid nonwoven materials

作　　者：李志刚 张星 朱佳慧 LI Zhigang;ZHANG Xing;ZHU Jiahui(School of Textile Science and Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学纺织科学与工程学院,陕西西安710048

出　　处：《西安工程大学学报》2023年第3期15-20,共6页Journal of Xi’an Polytechnic University

基　　金：陕西省重点研发计划项目(2021GY-212);中国纺织工业联合会科技指导性项目(2019025)。

摘　　要：为了提高PBO纤维湿法成型纤网的力学性能,采用热压工艺对其进行加固增强,利用Box-Behnken响应面法以热压温度、热压压力和热压时间3个因素为自变量,以PBO纤维湿法非织造材料断裂强力为响应值,建立响应面模型。结果表明,建立的响应面模型极其显著,并且拟合性好,能较好地预测PBO纤维湿法非织造材料断裂强力,并得出影响PBO纤维湿法非织造材料断裂强力的因素依次为热压压力>热压温度>热压时间。热压的最佳工艺参数为热压温度245.6℃,热压压力8.4 MPa,热压时间9.3 min,在此工艺参数下所得到的PBO纤维湿法非织造材料断裂强力平均值为393.9 N。In order to improve the mechanical properties of PBO fiber wet-laid forming mesh,the hot pressing process was used to strengthen it,and the Box-Behnken response surface method was used to establish a response surface model by taking three factors of hot pressing temperature,hot pressing pressure and hot pressing time as independent variables,and taking the fracture strength of PBO fiber wet-laid nonwoven materials as the response value.The resulTS show that the established response surface model is significant and has good fit.The Box-Behnken response surface method can predict the fracture strength of PBO fiber wet-laid nonwoven materials,and conclude that the factors affecting the fracture strength of PBO fiber wet-laid nonwoven materials are hot pressing pressure>hot pressing temperature>hot pressing time.The optimize process parameters of hot pressing are hot pressing temperature 245.6℃,hot pressing pressure 8.4 MPa,and hot pressing time 9.3 min.The average breaking strength of PBO fiber wet-laid nonwoven material obtained under this process parameter is 393.9 N.

关 键 词：PBO纤维 湿法非织造材料 Box-Behnken响应面法 热压工艺 

分 类 号：TS174.5[轻工技术与工程—纺织材料与纺织品设计]