纳米SiO2/含氟硅防水透湿整理剂的制备及其应用

doi:10.13475/j.fzxb.20210704908

摘要/Abstract

摘要：

为提高涤纶织物的防水透湿性能,采用半连续种子乳液聚合法,以丙烯酸酯类单体为聚合单体,以纳米SiO₂ 、甲基丙烯酸十二氟庚酯(G04)、乙烯基三甲氧基硅烷( A-171) 为功能单体,制备出纳米SiO₂/含氟硅改性聚丙烯酸酯乳液,并将其应用于涤纶织物的整理。对改性共聚乳液的化学结构进行表征,并测试了整理后织物的应用性能。结果表明:各单体均参与乳液聚合反应,且改性共聚乳液的热稳定性大大提高,乳胶粒子平均粒径为66 nm;在整理剂中加入质量分数为2%的交联剂后,整理织物的静水压和耐水洗性能都得到显著的改善,其接触角为138°,相比未整理织物的防水性能明显提高;整理后织物的透湿率也有所提高,且经向断裂强力由315.6 N增加到493.4 N。

关键词: 纳米SiO₂, 乳液聚合, 防水透湿, 整理剂, 涤纶织物, 功能整理

Abstract:

In order to improve the waterproof and moisture-permeable properties of polyester fabrics, a semi-continuous seed emulsion polymerization method was adopted, where acrylate monomers were used as polymerized monomers, nano-SiO₂, dodecafluoroheptyl methacrylate (G04) and vinyl trimethoxy using silane (A-171) as functional monomer. As a result, nano-SiO₂/fluorine-containing silicon modified polyacrylate emulsion was prepared and applied to polyester fabric. The chemical structure of the modified copolymer emulsion was characterized and the application performance of the finished fabric was tested. The results show that all monomers participated in the emulsion polymerization reaction, and the thermal stability of the modified copolymer emulsion was greatly improved. The average particle size of the particles is 66 nm. After adding 2% of crosslinking agent to the finishing agent, the hydrostatic pressure and washing resistance of the finished fabric were significantly improved compared with the unfinished polyester fabric, with the contact angle becoming 138°. The water-repellent performance of the finished fabric was significantly improved, the moisture permeability of the finished fabric was also increased, and the warp breaking strength was increased from 315.6 N to 493.4 N.

Key words: nano-SiO₂, emulsion polymerization, waterproof and moisture permeable, finishing agent, polyester fabric, function treatment

中图分类号:

TS195.2

梅敏, 钱建华, 周榆凯, 杨晶晶. 纳米SiO₂/含氟硅防水透湿整理剂的制备及其应用[J]. 纺织学报, 2022, 43(12): 118-124.

MEI Min, QIAN Jianhua, ZHOU Yukai, YANG Jingjing. Preparation and application of nano-SiO₂/fluorine-containing silicon waterproof and moisture-permeable finishing agent[J]. Journal of Textile Research, 2022, 43(12): 118-124.

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交联剂质量分数/%	静水压/kPa
交联剂质量分数/%	未水洗	水洗5次	水洗10次	水洗15次
1	2.146	1.839	1.249	1.088
2	2.251	2.009	1.566	1.238
3	2.326	2.158	1.740	1.380

项目	C1s	O1s	F1s	Si2p
理论值	63.54	18.84	14.33	3.29
实验值	63.03	17.23	15.39	4.35

纳米SiO₂/含氟硅防水透湿整理剂的制备及其应用

Preparation and application of nano-SiO₂/fluorine-containing silicon waterproof and moisture-permeable finishing agent

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