高等级化学防护服面料用水刺聚酰亚胺无纺布制备及性能
Preparation and performance of spunlace polyimide non-woven fabric for high-grade chemical protective clothing fabrics
李君美 1班德茂 1沈华 1刘丽芳1
作者信息
- 1. 东华大学 纺织学院,上海 201620
- 折叠
摘要
以聚酰亚胺短纤为原料,采用水刺工艺制备无纺布,以期用作高等级化学防护服面料骨架层.采用扫描电镜、电子织物强力机、织物阻燃性能测试仪等,研究单位面积质量对无纺布微观结构、断裂强力、化学稳定性能和阻燃性能等的影响.结果表明:单位面积质量为100 g/m2 的无纺布具有较好的综合性能,其纵向断裂强力为448 N,横向断裂强力为102 N;具有优异的耐高温/低温性能;无续燃和阴燃现象、无熔滴滴落,纵向和横向的损毁长度均小于2 mm,具有优异的阻燃性能;经30%盐酸、40%硝酸、20%氢氧化钠浸泡处理后,仍具有良好的力学性能.综上所述,采用水刺工艺制备聚酰亚胺无纺布作为化学防护服的骨架层具有显著优势.
Abstract
Polyimide(PI)staple fiber was used as raw material to prepare non-woven fabrics by spunlace process,in order to be used as the skeleton layer of high-grade chemical protective cloth-ing fabrics.Scanning electron microscope(SEM),electronic fab-ric strength machine,fabric flame retardant performance tester,etc.,were used to study the effects of unit area mass(gram weight)on the microstructure,mechanical properties,flame retar-dant and chemical stability properties of non-woven fabrics.The results show that the non-woven fabric with a gram weight of 100 g/m2 has good comprehensive properties,and has a longitudinal breaking strength of 448 N and a cross breaking strength of 102 N.It has excellent high/low temperature resistance.There is no continuous combustion and smoldering phenomenon,no melt droplet dripping,and the longitudinal and transverse damage length is less than 2 mm,which has excellent flame retardant per-formance.It still has good mechanical properties after being soaked in 30%hydrochloric acid,40%nitric acid and 20%so-dium hydroxide.In summary,the preparation of polyimide non-woven fabrics by spunlace process as the skeleton layer of chemi-cal protective clothing has significant advantages.
关键词
聚酰亚胺/无纺布/水刺工艺/化学防护/断裂强力Key words
polyimide/non-woven fabrics/spunlace process/chemical protection/breaking strength引用本文复制引用
出版年
2024
NETL
NSTL
万方数据