氯化铁对多巴胺改性蚕丝织物的功能整理

doi:10.13475/j.fzxb.20181100905

摘要/Abstract

摘要：

为赋予蚕丝织物多功能性,采用生物质改性剂多巴胺对蚕丝织物进行改性,在织物的表面引入氨基、酚羟基等官能团,然后对改性织物进行氯化铁浸渍处理。借助分光测色仪、扫描电子显微镜、氧指数测定仪、微燃烧量热仪等测试手段来表征整理后织物的各项性能,并对整理后蚕织物的耐水洗性进行探讨。结果表明,聚多巴胺改性蚕丝织物能够提高其成炭性,并且能成功螯合铁离子,采用氯化铁整理改性织物后,织物的氧指数值提高到29.1%,且其热释放能力和总热释放量分别降低至40 J/(g·K)和2.3 kJ/g,整理后织物具备一定的紫外线屏蔽性能,水洗后织物的氧指数值仍达到28.2%。

关键词: 蚕丝织物, 多巴胺, 氯化铁, 功能整理, 阻燃整理, 抗紫外线

Abstract:

In order to endow silk fabric with multifunction, the bio-based dopamine was used to modify silk fabric, and functional groups such as amino group and phenolic hydroxyl group were introduced on the surface of the fabric, and then, the modified fabric was immersion treated with ferric chloride. The properties of the finished fabric were characterized by spectrophotometer, scanning electron microscope, oxygen index meter and micro-combustion calorimeter. The laundering durability to washing of the finished silk fabric was discussed. The results show that the polydopamine-modified silk fabric could improve its char formation and successfully chelate the iron ions. After being treated with ferric chloride, the oxygen index of dopamine modified silk fabric increass to 29.1%, and its heat release capacity and the total heat release are reduced to 40 J/(g·K) and 2.3 kJ/g, respectively. The finished fabric has certain UV shielding properties, and the oxygen index of the fabric after washing is still 28.2%.

Key words: silk fabric, dopamine, ferric chloride, functional finishing, flame retardant finishing, anti-UV

中图分类号:

TS190.6

关晋平, 匡小慧, 唐人成, 陈国强. 氯化铁对多巴胺改性蚕丝织物的功能整理[J]. 纺织学报, 2019, 40(02): 130-134.

GUAN Jinping, KUANG Xiaohui, TANG Rencheng, CHEN Guoqiang. Functional finishing of dopamine modified silk fabric with ferric chloride[J]. Journal of Textile Research, 2019, 40(02): 130-134.

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样品	L^*	a^*	b^*	C^*	H
Silk	94.80	-0.60	2.87	2.94	101.77
PDA-Silk	28.13	3.90	10.13	10.85	68.91
FeCl₃-PDA-Silk	32.73	9.43	17.74	20.09	62.01

样品	HRC/ (J·(g·K)^-1)	PHRR/ (W·g^-1)	THR/ (kJ·g^-1)	T/℃
Silk	146.0	132.8	8.6	310.4
PDA-Silk	132.0	130.0	8.7	313.1
FeCl₃-PDA-Silk	40	38.5	2.3	297.7

样品	极限氧指数/%	损毁长度/cm	阴燃时间/s
Silk	23.7	烧尽	0
PDA-Silk	23.9	烧尽	0
FeCl₃-PDA-Silk	29.1	11	15.7

样品	UPF	T_UVA/%	T_UVB/%
Silk	2.77	51.83	27.91
PDA-Silk	13.84	7.83	7.12
FeCl₃-PDA-Silk	10.79	9.29	9.27