纳米ZnO/有机氟硅改性聚丙烯酸酯乳液的合成及应用

doi:10.13475/j.fzxb.20190602207

Abstract

Abstract:

In order to improve the wearability of cotton fabrics, such as ultraviolet resistance, hydrophobicity and softness, the core-shell type nano-ZnO/fluorosilicone modified polyacrylate emulsion was prepared by semi-continuous seed emulsion copolymerization using nano-ZnO, dodecafluloroheptry methacrylate, 3-(trimethoxysilyl)propyl methacrylate, methyl methacrylate and butyl acrylate as reaction monomers, and it was applied to finishing cotton fabrics. Structure and properties of the prepared latex film were characterized and analyzed by infrared spectrometer, X-ray photoelectron spectrometer and thermogravimetric analyzer. Application performance of the finished cotton fabrics was tested by fabric stylistic instrument. The results show that the prepared composite emulsion has the core-shell structure. The average particle size is 45.64 nm and the average Zeta potential is -43.4 mV. The cotton fabrics treated with composite emulsion show good ultraviolet protection performance with the transmi-ttance (UVA) being 2.13%, and the ultraviolet protection factor 50.18. The contact angle of the fabric to water is 136.14°. The bending rigidity and friction coefficient (static and dynamic) is decreased obviously. The cotton fabric is endowed with excellent softness and smooth handle.

Key words: nano-ZnO, core-shell structure, fabric finishing agent, ultraviolet protection performance, hydrophobic performance

CLC Number:

TS195.3

SUI Zhihui, SAN Jinglong, WANG Xu, CHANG Jiang, WU Xuedong, ZU Bin. Synthesis and application of nano-ZnO/organic fluorosilicon modified polyacrylate emulsion[J].Journal of Textile Research, 2020, 41(04): 84-90.

Figures/Tables 10

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References 14

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元素种类	胶膜-空气界面	胶膜-玻璃界面
C1s	61.25	67.42
O1s	19.16	19.80
F1s	10.03	5.06
Si2p	3.98	2.26

纳米ZnO 质量分数/%	透过率/%		UPF值	白度/%
纳米ZnO 质量分数/%	UVA	UVB	UPF值	白度/%
0.0	5.27	5.68	16.90	92.02
0.3	4.17	4.55	21.19	99.69
0.6	3.52	3.30	29.24	101.60
0.9	3.11	2.72	35.21	102.30
1.2	2.65	2.12	43.04	104.00
1.5	2.13	2.08	50.18	104.80

有机氟质量分数/%	断裂强力/N		水接触角/(°)
有机氟质量分数/%	经向	纬向	水接触角/(°)
0	281	274	64.87
5	312	303	84.87
10	337	326	98.60
15	363	342	119.16
20	372	368	136.14
25	379	371	139.62

有机硅质量分数/ %	弯曲刚度/ (cN·mm^-1)		刚性指数		动摩擦因数		静摩擦因数
有机硅质量分数/ %	经向	纬向	经向	纬向	经向	纬向	经向	纬向
0	5.87	5.55	0.29	0.28	0.470	0.432	0.606	0.671
1	3.87	4.59	0.19	0.23	0.416	0.419	0.532	0.461
2	3.04	2.75	0.15	0.14	0.483	0.348	0.489	0.425
3	2.61	2.12	0.13	0.11	0.340	0.297	0.402	0.376
4	1.78	1.41	0.09	0.07	0.279	0.123	0.332	0.357
5	1.71	1.32	0.09	0.07	0.274	0.102	0.317	0.357

Synthesis and application of nano-ZnO/organic fluorosilicon modified polyacrylate emulsion

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