服用聚苯硫醚纤维的制备及其性能  

Preparation and properties of polyphenylene sulfide composite fiber for clothing

作　　者：连丹丹 王镭 杨雅茹 尹立新[2] 葛超 卢建军 LIAN Dandan;WANG Lei;YANG Yaru;YIN Lixin;GE Chao;LU Jianjun(College of Textile Engineering,Taiyuan University of Technology,Jinzhong,Shanxi 030600,China;Jiangsu Hengli Chemical Fiber Co.,Ltd.,Suzhou,Jiangsu 215226,China;College of Materials and Textile Engineering,Jiaxing University,Jiaxing,Zhejiang 314001,China)

机构地区：[1]太原理工大学轻纺工程学院,山西晋中030600 [2]江苏恒力化纤股份有限公司,江苏苏州215226 [3]嘉兴学院材料与纺织工程学院,浙江嘉兴314001

出　　处：《纺织学报》2023年第8期1-8,共8页Journal of Textile Research

基　　金：国家自然科学基金青年基金项目(51903184);中国博士后科学基金资助项目(2021M701129)。

摘　　要：为提高聚苯硫醚(PPS)纤维的吸湿性能、染色性能和抗紫外线性能,利用双螺杆挤出机和熔融纺丝机将聚丙烯酸钠(PAAS)和纳米TiO_(2)与PPS共混制备复合纤维,并对PPS/PAAS/TiO_(2)复合纤维的结构、性能进行了分析。结果表明:PAAS和纳米TiO_(2)在PPS基体中的分散相容良好,纳米TiO_(2)可提高PPS的结晶度,而PAAS会降低PPS的结晶度;当PAAS质量分数为2%时,复合纤维的综合性能最优,断裂强度为3.06 cN/dtex,断裂伸长率为30.4%,水接触角达52.1°,标准回潮率提高到3.5%,上染率为90.9%,耐皂洗色牢度达到5级,耐光照色牢度达到7级,50℃加速紫外光老化120 h后强度保持率在85%以上。PAAS和纳米TiO_(2)附带的功能基团和在PPS基体中形成的多级网络结构提高了复合纤维吸湿性、染色性能和抗紫外线性能。Objective Special protective clothing are used against high temperature,acid and alkali corrosion,fire and other special environments,and high-performance fibers are essential for special protective clothing.Polyphenylene sulfide(PPS)fiber is a high-performance fiber with excellent mechanical properties,chemical resistance,self-flame retardancy and insulation and other outstanding properties,and it is a suitable raw material for special protective clothing.However,the poor moisture absorption,dyeing performance and light resistance of PPS fiber,limit the applications in apparel.Method PPS fibers were modified with sodium polyacrylate(PAAS)and nano-TiO_(2) to obtain PPS/PAAS/TiO_(2) composite fibers with better hygroscopic property,dyeing performance and UV resistance.The PPS/PAAS/TiO_(2) composite masterbatches were prepared by melt blending the vacuum-dried PPS with PAAS and nano-TiO_(2) using a twin-screw extruder before these composite masterbatches were vacuum dried at 130℃for 13 h.The composite fibers were prepared by a one-step spinning and drawing process using melt spinning.The spinning speed was 800 m/min,the pump supply was 22 g/min,and two-zone drafting was used,with the temperature of each drafting hot plate setting at 88,102 and 108℃,and the drafting multiplier was 3.2.The mechanical properties,moisture absorption properties,dyeing rate,color fastness,and ultraviolet(UV)resistance of the prepared fibers were characterized.Results PAAS and nano-TiO_(2) were able to disperse uniformly in the polyphenylene sulfide(PPS)fiber matrix and form a good cross-compatibility(Fig.2),but when the mass fraction of PAAS exceeded 3%,agglomeration appeared and the poor dispersion led to poor spinnability of PPS composite fibers(Tab.1).The use of Nano-TiO_(2) improved the crystallinity of PPS fibers,while PAAS made the glass transition temperature and crystallinity of composite fibers decrease(Fig.3 and Tab.2).Increasing the internal free volume and amorphous zone of fibers resulted in a slight decrease in the brea

关 键 词：聚苯硫醚纤维 服用改性 吸湿性能 染色性能 抗紫外线性能 聚丙烯酸钠 二氧化钛 

分 类 号：TS102.5[轻工技术与工程—纺织工程] TS102.6[轻工技术与工程—纺织科学与工程]