可海水降解聚乙醇酸纤维及无纺布的连续制备与性能  

Continuous preparation and performance of seawater degradable polyglycollate fibers and nonwovens

作　　者：纪旭 张睿[1] 王小红[1] 徐鼐[2] 冯玉红[2] 潘莉莎[1] JI Xu;ZHANG Rui;WANG Xiaohong;XU Nai;FENG Yuhong;PAN Lisha(School of Chemistry and Chemical Engineering,Hainan University,Haikou 570228,China;School of Materials Science and Engineering,Hainan University,Haikou 570228,China)

机构地区：[1]海南大学化学化工学院,海口570228 [2]海南大学材料科学与工程学院,海口570228

出　　处：《工程塑料应用》2024年第7期49-56,共8页Engineering Plastics Application

摘　　要：为缓解不可降解无纺布对环境的压力,利用聚乙醇酸(PGA)材料制备纤维及无纺布,研究PGA材料的热性能以及探究纺丝机热加工温度、热辊温度、计量泵转速对纤维的直径、线密度、拉伸性能及无纺布的克重、厚度、拉伸性能、生产稳定性的影响,优选生产工艺。结果表明,在一、二、三、四区的温度分别为225,225,230,235℃,机头温度为215℃,计量泵转速为24 Hz,热辊温度为50℃的条件下,PGA可实现纤维及无纺布的连续制备,纤维及无纺布的综合性能较优:未牵伸前纤维的直径为0.153 mm,线密度为258.38 dtex,拉伸强度为1.55 cN/dtex;无纺布克重为335.52 g/m^(2),厚度为0.672 mm,拉伸强度为17.07 MPa,断裂伸长率为552.50%,制备的无纺布的厚度误差为5.7%,属于一等品。In order to alleviate the pressure of non-degradable nonwovens on the environment,polyglycolic acid(PGA)materials were used to prepare fibers and nonwovens,and the thermal properties of PGA materials,and the effects of thermal processing temperature,hot roller temperature and metering pump speed of spinning machine on the diameter,linear density,tensile properties of fibers,gram weight,thickness,tensile properties and production stability of nonwovens were studied,and the production process was optimized.The results show that under the conditions of 225,225,230℃and 235℃in the 1,2,3 and 4 zones respectively,the head temperature is 215℃,the speed of the metering pump is 24 Hz,and the temperature of the hot roller is 50℃,it can realize the continuous preparation of fibers and nonwovens of PGA,and the comprehensive properties of fibers and nonwovens are better:the fiber diameter before drafting is 0.153 mm,the linear density is 258.38 dtex,and the tensile strength is 1.55 cN/dtex.The weight of the nonwoven fabric is 335.52 g/m^(2),the thickness is 0.672 mm,the tensile strength is 17.07 MPa,the elongation at break is 552.50%,and the thickness error of the prepared non-woven fabric is 5.7%,which belongs to the first-class product.

关 键 词：聚乙醇酸 熔融纺丝 可降解材料 纤维 无纺布 

分 类 号：TS174[轻工技术与工程—纺织材料与纺织品设计]