11-氨基十一酸改性PA6的制备及性能研究
Preparation and Characterization of PA6 Modified by 11-Aminoundecanoic Acid
李益仁 1汤廉 1吉鹏 2郝莱丹 1唐自远 1王朝生1
作者信息
- 1. 东华大学纤维改性国家重点实验室,材料科学与工程学院,上海201620
- 2. 东华大学纺织产业关键技术协同创新中心,上海201620
- 折叠
摘要
以己内酰胺、水、己二酸为原料,11-氨基十一酸作为改性剂聚合得到改性尼龙6(PA6),随后通过熔融纺丝成形后制备了改性PA6纤维,并对改性的PA6切片、纤维和织物进行了表征.结果表明:经11-氨基十一酸改性后,PA6切片中热水可萃取物的质量分数降低了3％,切片的饱和吸水率下降了大约5％,熔融温度从221.50℃下降到206.20℃,结晶温度从184.11℃下降到165.26℃,PA6纤维的模量和断裂伸长率下降,断裂强度有所提高;织物的硬挺度、弯曲刚度和弯曲滞后矩减小,说明改性后PA6织物的柔软性能变好,手感更活络.
Abstract
Modified nylon 6 (PA6) was prepared by polymerization of caprolactam,water,adipic acid and 11-aminoundecanoic acid,then modified PA6 fiber was prepared by melt spinning.The modified PA6chips,fibers and fabrics were characterized.The results show that after 11-aminoundecanoic acid modification,the content of hot water extract in PA6 decreases by 3％,the saturated water absorption rate of the chip decreases by about 5％,the melting temperature decreases from 221.5 ℃ to 206.20 ℃ and the crystallization temperature decreases from 184.11 ℃ to 165.26 ℃.The mechanical properties show that the modulus and elongation at break of the fiber decrease,and the fracture strength increases.The stiffness and bending performance test show that fabric stiffness,bending stiffness and bending hysteresis moment decrease,indicating the better soft performance and feeling of modified PA6 fabric.
关键词
PA6/11-氨基十一酸/改性/吸水率/柔软性Key words
PA6/11-aminoundecanoic acid/modification/water absorption/softness引用本文复制引用
基金项目
国家重点基础研究发展计划项目(2016YFB0302700)
国家自然科学基金(51703023)
出版年
2018
NETL
NSTL
维普
万方数据