聚丙烯酸酯/罗丹明B复合乳胶的细乳液聚合制备及其应用

doi:10.13475/j.fzxb.20181205906

摘要/Abstract

摘要：

为提升罗丹明B在水中的分散稳定性,通过细乳液聚合制备了聚丙烯酸酯/罗丹明B复合乳胶,并对其性能进行了研究。借助粒径分析仪、透射电子扫描显微镜、X射线衍射仪、荧光光谱仪测试了聚丙烯酸酯/罗丹明B复合乳胶的粒径、Zeta电位、形态结构及荧光性能;采用刮印的方法将制备的聚丙烯酸酯/罗丹明B复合乳胶整理于棉织物,讨论了乳胶质量分数、黏合剂质量分数对棉织物荧光反射率的影响。结果表明,所制备的聚丙烯酸酯/罗丹明B复合乳胶平均粒径为86.2 nm,Zeta电位为-54.7 mV,分散稳定性较好,荧光性能增强;当乳胶质量分数为10%、黏合剂质量分数为20%时,整理后棉织物的K/S值和荧光反射率较高,织物的耐水洗色牢度达到4级,耐摩擦色牢度为3~4级。

关键词: 细乳液聚合, 复合乳胶, 荧光性能, 聚丙烯酸酯, 罗丹明B

Abstract:

In order to improve the stability of rhodamine B in water, polyacrylate/rhodamine B composite latex was prepared by miniemulsion polymerization and the property of polyacrylate/rhodamine B composite latex was also discussed. The particle size, Zeta potential, morphological structure and fluorescenct performance of rhodamine B solution and composite latex were tested by particle size analysis, transmission electron microscopy, X-ray diffractometry and fluorescence spectrometry, respectively. The influences of composite latex mass percent and binder mass percent on the fluorescent properties of cotton fabrics were discussed as application of polyacrylate/rhodamine B composite latex on the cotton fabrics by scraping. It is found that the average particle size and Zeta potential of polyacrylate/rhodamine B composite latex are 86.2 nm and -54.7 mV, respectively. The dispersion stability and fluorescent performance of composite latex are enhanced. The K/S values and fluorescent reflectance of cotton fabrics are higher, and the washing fastness and rubbing fastness reaches grade 4 and 3-4 under the condition of the mass percent of latex 10% and the binder mass percent of latex 20%, respectively.

Key words: miniemulsion polymerization, composite latex, fluorescence property, polyacrylate, rhodamine B

中图分类号:

TS194.9

项伟, 杨宏林, 全琼瑛. 聚丙烯酸酯/罗丹明B复合乳胶的细乳液聚合制备及其应用[J]. 纺织学报, 2019, 40(09): 122-127.

XIANG Wei, YANG Honglin, QUAN Qiongying. Preparation and application of polyacrylate/rhodamine B composite latex by miniemulsion polymerization[J]. Journal of Textile Research, 2019, 40(09): 122-127.

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罗丹明B 质量分数/%	平均粒径/ nm	PDI	Zeta电位值/ mV
0.4	70.3	0.053	-50.7
0.6	78.0	0.488	-45.8
0.8	85.8	0.515	-44.0
1.0	89.8	0.483	-37.2
1.2	116.5	0.588	-27.2

乳化剂质量分数/%	平均粒径/ nm	PDI	Zeta电位值/ mV
0.4	89.8	0.483	-37.2
2.0	88.4	0.501	-45.6
4.0	87.1	0.377	-49.9
6.0	86.2	0.324	-54.7

复合乳胶质量分数/%	K/S值	ΔR/%
5	0.882 7	3.92
10	1.578 6	5.05
15	2.150 8	3.15
20	2.616 1	1.67
25	3.406 1	1.66

黏合剂质量分数/%	K/S值	ΔR/%
5	1.598 5	5.27
10	1.532 4	5.23
20	1.578 6	5.05
30	1.467 8	5.02