中空桔瓣型高收缩聚酯/聚酰胺6超细纤维非织造布的制备及其性能

doi:10.13475/j.fzxb.20210802407

纺织学报 ›› 2022, Vol. 43 ›› Issue (02): 98-104.doi: 10.13475/j.fzxb.20210802407

中空桔瓣型高收缩聚酯/聚酰胺6超细纤维非织造布的制备及其性能

朵永超¹, 钱晓明¹(), 郭寻¹, 高龙飞¹, 白赫¹^,², 赵宝宝³

1.天津工业大学纺织科学与工程学院, 天津 300387
2.天津师范大学物理与材料科学学院,天津 300387
3.安徽工程大学纺织服装学院, 安徽芜湖 241000

收稿日期:2021-08-02 修回日期:2021-11-17 出版日期:2022-02-15 发布日期:2022-03-15
通讯作者: 钱晓明
作者简介:朵永超(1992—),男,博士生。主要研究方向为新型非织造材料制备技术。
基金资助:
国家自然科学基金项目(U1607117);天津市应用基础与前沿技术计划项目(16JCZDJC36400);天津市科技计划项目(17PTSYJC00150)

Preparation and properties of hollow pie-segmented high shrinkage polyester/polyamide 6 microfiber nonwovens

DUO Yongchao¹, QIAN Xiaoming¹(), GUO Xun¹, GAO Longfei¹, BAI He¹^,², ZHAO Baobao³

1. School of Textiles Science and Engineering, Tiangong University, Tianjin 300387, China
2. School of Physics and Materials Science, Tianjin Normal University, Tianjin 300387, China
3. School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China

Received:2021-08-02 Revised:2021-11-17 Published:2022-02-15 Online:2022-03-15
Contact: QIAN Xiaoming

摘要/Abstract

摘要：

针对中空桔瓣型超细纤维非织造布开纤率低、悬垂性差的问题,以高收缩聚酯(HSPET)、聚酰胺(PA6)为原料,通过双组分纺粘水刺技术制备了不同面密度的HSPET/PA6超细纤维非织造布,分析了热收缩处理对非织造布开纤率、悬垂性、柔软度、透气性、过滤效率以及力学性能的影响。结果表明:当水刺压力一定时,与PET/PA6非织造布相比,HSPET/PA6非织造布的开纤率提高48.1%;经热收缩处理后,HSPET/PA6非织造布收缩率可达到20.31%,热收缩可促进纤维裂离,使非织造布内部结构相对蓬松,改善其悬垂性;HSPET/PA6非织造布的过滤效率随着开纤率的增加而增加,当其面密度为140 g/m²时,对于粒径大于或等于1.5 μm颗粒的过滤效率接近于100%,但经热收缩处理后HSPET/PA6非织造布过滤效率有所下降。

关键词: 高收缩聚酯/聚酰胺6超细纤维, 中空桔瓣型纤维, 纺粘水刺技术, 热收缩, 非织造布

Abstract:

Aiming at the problems of low fiber splitting rate and poor drapability of hollow pie-segmented microfiber nonwoven, high shrinkage polyester/polyamide 6 microfiber nonwovens with different areal densities were prepared by bicomponent spunbond spunlace technology with high shrinkage polyester (HSPET) and polyamide (PA6) as raw materials. The effect of heat shrinkage treatment on fiber splitting rate, drapability, softness, air permeability, filtration efficiency and mechanical properties of the nonwovens were analyzed. The results show that when the spunlace pressure was constant, the fiber splitting rate of the HSPET/PA6 nonwoven fabric is increased by 48.1% compared with that of PET/PA6 nonwoven. After heat shrinkage treatment, the shrinkage rate of HSPET/PA6 nonwoven reaches 20.31%. Heat shrinkage promotes the fiber splitting, resulting in a relatively fluffy internal structure of the nonwoven, offering drapability improvement. The filtration efficiency of HSPET/PA6 nonwovens was increased as the increased fiber splitting rate. The filtration efficiency of HSPET/PA6 nonwovens was close to 100% for particles with size greater than or equal to 1.5 μm when the areal density of the nonwoven was 140 g/m², but the filtration efficiency of HSPET/PA6 nonwovens was reduced after heat shrinkage treatment.

Key words: high-shrinkage polyester/polyamide 6 microfiber, hollow pie-segmented fiber, spunbond spunlace technology, heat shrinkage, nonwovens

中图分类号:

TS174.8

朵永超, 钱晓明, 郭寻, 高龙飞, 白赫, 赵宝宝. 中空桔瓣型高收缩聚酯/聚酰胺6超细纤维非织造布的制备及其性能[J]. 纺织学报, 2022, 43(02): 98-104.

DUO Yongchao, QIAN Xiaoming, GUO Xun, GAO Longfei, BAI He, ZHAO Baobao. Preparation and properties of hollow pie-segmented high shrinkage polyester/polyamide 6 microfiber nonwovens[J]. Journal of Textile Research, 2022, 43(02): 98-104.

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参考文献 16

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试样名称	收缩率/%		断裂强力/cN	断裂伸长率/%
试样名称	沸水	干热	断裂强力/cN	断裂伸长率/%
HSPET/PA6	12.27	10.57	5.46	80.42
PET/PA6	1.23	1.09	6.74	61.47

面密度/ (g·m^-2)	沸水收缩率/%
面密度/ (g·m^-2)	PET/PA6	HSPET/PA6	PET/PA6	HSPET/PA6
80	1.234	20.31	1.056	16.29
120	1.402	20.18	1.034	16.25
140	1.561	19.67	1.214	15.61

试样名称	80 g/m²		120 g/m²		140 g/m²
试样名称	静态悬垂系数	动态悬垂系数	静态悬垂系数	动态悬垂系数	静态悬垂系数	动态悬垂系数
HSPET/PA6	65.48	79.34	80.34	86.99	85.52	90.22
干热收缩HSPET/PA6	73.02	82.59	84.14	87.45	89.95	92.74
沸水收缩HSPET/PA6	62.00	72.36	74.20	79.92	78.14	83.23
PET/PA6	73.80	82.70	85.69	89.43	91.56	94.57

试样名称	80 g/m²				120 g/m²				140 g/m²
	断裂强力/N		断裂伸长率/%		断裂强力/N		断裂伸长率/%		断裂强力/N		断裂伸长率/%
	纵向	横向	纵向	横向	纵向	横向	纵向	横向	纵向	横向	纵向	横向
HSPET/PA6	361.0	154.0	48.45	55.62	548.3	270.0	54.35	64.55	621.1	336.5	60.67	70.23
干热收缩HSPET/PA6	421.3	176.3	46.15	54.13	623.4	292.1	52.92	62.75	721.4	372.9	53.47	68.25
沸水收缩HSPET/PA6	408.3	206.0	53.35	62.85	611.3	289.3	58.95	68.60	675.2	374.5	61.88	72.32
PET/PA6	378.5	147.3	41.34	53.19	572.3	273.7	46.41	60.95	643.2	304.5	45.79	64.32

中空桔瓣型高收缩聚酯/聚酰胺6超细纤维非织造布的制备及其性能

Preparation and properties of hollow pie-segmented high shrinkage polyester/polyamide 6 microfiber nonwovens

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