氧化石墨烯协同二硫代焦磷酸酯阻燃粘胶纤维的制备及其性能

doi:10.13475/j.fzxb.20190408306

纺织学报 ›› 2020, Vol. 41 ›› Issue (03): 15-19.doi: 10.13475/j.fzxb.20190408306

氧化石墨烯协同二硫代焦磷酸酯阻燃粘胶纤维的制备及其性能

马君志¹^,², 王冬¹, 付少海¹()

1.生态纺织教育部重点实验室(江南大学), 江苏无锡 214122
2.恒天海龙(潍坊)新材料有限责任公司, 山东潍坊 261100

收稿日期:2019-04-30 修回日期:2019-12-16 出版日期:2020-03-15 发布日期:2020-03-27
通讯作者: 付少海
作者简介:马君志(1976—),男,博士生。主要研究方向为阻燃再生纤维素纤维。
基金资助:
国家重点研发计划项目(2017YFB0309004);江苏省自然科学基金项目(BK20190613)

Preparation and properties of flame-retardant viscose fiber/dithiopyrophosphate incorporated with graphene oxide

MA Junzhi¹^,², WANG Dong¹, FU Shaohai¹()

1. Key Laboratory of Eco-Textiles (Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
2. CHTC Helon (Weifang) New Materials Co., Ltd., Weifang, Shandong 261100, China

Received:2019-04-30 Revised:2019-12-16 Online:2020-03-15 Published:2020-03-27
Contact: FU Shaohai

摘要/Abstract

摘要：

为提高粘胶/二硫代焦磷酸酯(VF/DDPS)纤维的阻燃及力学性能,以氧化石墨烯(GO)作为协同阻燃剂添加到VF/DDPS基体中,通过湿法纺丝工艺制得VF/DDPS/GO复合纤维。借助热重分析仪、极限氧指数仪、微型量热仪和单丝强力仪研究GO对VF/DDPS复合纤维热性能、阻燃性能和力学性能的影响。结果表明:与VF/DDPS纤维相比,当GO质量分数为2.0%时,VF/DDPS/GO复合纤维的残炭量从20.0%增加到29.7%,极限氧指数从27.8%升高到29.1%,热释放速率峰值从141.5 W/g降低到99.4 W/g,干、湿断裂强度分别从2.08、0.96 cN/dtex增加到2.20、1.17 cN/dtex;GO的添加可提高VF/DDPS炭渣的石墨化程度和致密度,增强炭渣的热质阻隔作用。

关键词: 粘胶纤维, 氧化石墨烯, 二硫代焦磷酸酯, 阻燃纤维, 阻燃剂

Abstract:

To improve the flame-retardant and mechanical properties of viscose fiber/bisneopentyl glycol dithiopyrophosphate (VF/DDPS), graphene oxide (GO) was incorporated into VF/DDPS matrix as synergistic flame retardant to prepare VF/DDPS/GO composite fiber through wetting spinning. Using thermogravimetry, limiting oxygen index tester, microscale combustion calorimeter and single fiber tensile tester as performance indices, the effect of GO on the thermal, flame-retardant and mechanical properties of VF/DDPS composite fiber were studied. The results show that compared to VF/DDPS, when incorporating 2.0% GO, the char residues of VF/DDPS/GO composite fiber increases from 20.0% to 29.7%, limiting oxygen index rises from 27.8% to 29.1%, peak heat release rate decreases from 141.5 to 99.4 W/g and dry/wet breaking strength increases from 2.08,0.96 cN/dtex to 2.20,1.17 cN/dtex. It is concluded that GO could enhance the graphitic degree and compactness of char residues, which strengthens the barrier action of heat and mass.

Key words: viscose fiber, graphene oxide, bisneopentyl glycol dithiopyrophosphate, flame-retardant fiber, flame-retardant agent

中图分类号:

TS102.6

马君志, 王冬, 付少海. 氧化石墨烯协同二硫代焦磷酸酯阻燃粘胶纤维的制备及其性能[J]. 纺织学报, 2020, 41(03): 15-19.

MA Junzhi, WANG Dong, FU Shaohai. Preparation and properties of flame-retardant viscose fiber/dithiopyrophosphate incorporated with graphene oxide[J]. Journal of Textile Research, 2020, 41(03): 15-19.

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样品编号	断裂强度/(cN·dtex^-1)		断裂伸长率/%
样品编号	干	湿	断裂伸长率/%
1^#	2.26	1.14	19.2
2^#	2.08	0.96	19.4
3^#	2.17	1.06	19.8
4^#	2.23	1.14	18.5
5^#	2.29	1.26	18.1
6^#	2.20	1.17	17.6

氧化石墨烯协同二硫代焦磷酸酯阻燃粘胶纤维的制备及其性能

Preparation and properties of flame-retardant viscose fiber/dithiopyrophosphate incorporated with graphene oxide

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参考文献 13

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样品编号	α-纤维素质量分数	DDPS对α-纤维素质量分数	GO对α-纤维素质量分数
1^#	100	0	0.0
2^#	100	18	0.0
3^#	100	18	0.5
4^#	100	18	1.0
5^#	100	18	1.5
6^#	100	18	2.0

样品编号	α-纤维素质量分数	DDPS对α-纤维素质量分数	GO对α-纤维素质量分数
1^#	100	0	0.0
2^#	100	18	0.0
3^#	100	18	0.5
4^#	100	18	1.0
5^#	100	18	1.5
6^#	100	18	2.0

样品编号	α-纤维素质量分数	DDPS对α-纤维素质量分数	GO对α-纤维素质量分数
1^#	100	0	0.0
2^#	100	18	0.0
3^#	100	18	0.5
4^#	100	18	1.0
5^#	100	18	1.5
6^#	100	18	2.0