纺织学报 ›› 2022, Vol. 43 ›› Issue (08): 119-125.doi: 10.13475/j.fzxb.20210206608

• 染整与化学品 • 上一篇    下一篇

有机硅改性水性聚氨酯丙烯酸酯杂化胶乳的制备及其在涂料印花中的应用

谢子文1,2, 李家炜1,2(), 汪芬萍1,2, 戚栋明1,2, 严小飞1, 朱晨凯1, 赵磊3, 何贵平3   

  1. 1.浙江理工大学 绿色低碳染整技术浙江省工程研究中心, 浙江 杭州 310018
    2.浙江理工大学 先进纺织材料与制备技术教育部重点实验室, 浙江 杭州 310018
    3.浙江纳美新材料股份有限公司, 浙江 湖州 313301
  • 收稿日期:2021-02-25 修回日期:2022-05-07 出版日期:2022-08-15 发布日期:2022-08-24
  • 通讯作者: 李家炜
  • 作者简介:谢子文(1995—),男,博士生。主要研究方向为有机颜料的改性与应用。
  • 基金资助:
    国家自然科学基金项目(51703200);浙江省“尖兵”“领雁”研发攻关计划项目(2022C01210);浙江省基础公益研究计划项目(LGG20E030006)

Preparation of polydimethylsiloxane modified waterborne polyurethane acrylate hybrid latex and its applications in pigment printing

XIE Ziwen1,2, LI Jiawei1,2(), WANG Fenping1,2, QI Dongming1,2, YAN Xiaofei1, ZHU Chenkai1, ZHAO Lei3, HE Guiping3   

  1. 1. Zhejiang Provincial Engineering Research Center for Green and Low-Carbon Dyeing & Finishing, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Key Laboratory of Advanced Textile Materials & Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    3. Zhejiang Namei Material Technology Co., Ltd., Huzhou, Zhejiang 313301, China
  • Received:2021-02-25 Revised:2022-05-07 Published:2022-08-15 Online:2022-08-24
  • Contact: LI Jiawei

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摘要：

为提高涂料印花织物的手感、耐摩擦色牢度等性能,通过细乳液共聚将二端羟丁基聚二甲基硅烷(PDMS)作为聚氨酯(PU)的软段制得有机硅改性水性聚氨酯丙烯酸酯(Si–PUA)杂化胶乳,并应用于涤纶织物涂料印花。考察了PDMS质量分数对杂化胶膜耐水性、热力学性能及对印花织物表观色深、耐摩擦色牢度和硬挺度的影响。结果表明:与聚氨酯丙烯酸酯(PUA)相比,Si–PUA杂化胶膜的耐水性和柔性得到提升;当PDMS质量分数为20％时,杂化胶膜的水接触角较PUA胶膜增长了56.5％,–55 ℃时的储能模量降低了45.5％;将Si–PUA杂化胶乳用于涤纶织物涂料印花,具有更佳的色深性和耐磨性,其手感柔软度接近于原涤纶织物,具有良好的服用性能。

关键词: 杂化胶乳, 聚氨酯丙烯酸酯, 有机硅, 涂料印花

Abstract:

In order to improve the hand feeling, rubbing fastness and other performance of printed fabrics, dihydroxybutyl-terminated polydimethylsiloxane (PDMS) was used as the soft segment of polyurethane (PU) to prepare polydimethylsiloxane modified waterborne polyurethane acrylate (Si–PUA) hybrid latexes via miniemulsion polymerization for applications in pigment printing of polyester fabrics. The effects of PDMS mass fraction on water resistance and thermodynamic properties of the hybrid latex films, as well as the dye depth value, dry and wet rubbing fastness and stiffness of the printed fabric were investigated. The results showed that,compared with polyurethane acrylate (PUA), the water resistance and flexibility of the Si–PUA hybrid latex films are improved. When the mass fraction of PDMS was 20％, the water contact angle of Si–PUA hybrid latex film increased by 56.5％, the storage modulus of Si–PUA hybrid film at –55 ℃ decreased by 45.5％. Moreover, when the prepared Si–PUA latex was used in the pigment printing for polyester fabric, the printed fabric had better color depth and rubbing fastness, as well as the softness close to the bare polyester fabric, which exhibited good wearability.

Key words: hybrid emulsion, polyurethane acrylate, polydimethylsiloxane, pigment printing

中图分类号: 

  • TS193.5

图1

Si–PUA杂化乳胶的聚合反应示意图"

表1

Si–PUA杂化胶乳的实验配方"

试样
编号		 各配方用量/g PDMS质
量分数/％
BA St PDMS PCL IPDI HEMA AIBN HD DBTDL DNS–86
A1 11.4 6.1 — 14.2 3.3 0.3 0.18 1.05 0.05 1.4 0
A2 11.4 6.1 2.4 11.8 3.3 0.3 0.18 1.05 0.05 1.4 7
A3 11.4 6.1 5.3 8.9 3.3 0.3 0.18 1.05 0.05 1.4 15
A4 11.4 6.1 7.1 7.1 3.3 0.3 0.18 1.05 0.05 1.4 20

图2

PUA胶膜和Si–PUA杂化胶膜的红外光谱"

图3

PUA胶乳和Si–PUA杂化胶乳的粒径分布"

表2

PUA胶乳和Si–PUA杂化胶乳的平均粒径及其分布"

试样编号 平均粒径/nm 粒径分布指数
A1 170.3 0.127
A2 183.1 0.138
A3 135.6 0.121
A4 141.2 0.128

图4

PUA胶膜和Si–PUA杂化胶膜的水接触角和吸水率"

图5

PUA胶膜和Si–PUA杂化胶膜的对比照片"

图6

PUA胶膜和Si–PUA杂化胶膜截面的TEM照片"

图7

PUA胶膜和Si–PUA杂化胶膜的DMA曲线"

表3

PUA胶膜和Si–PUA杂化胶膜的储能模量和玻璃化转变温度"

试样编号 储能模量/Pa 玻璃化转变温度/℃
1# 2 005.7 –0.9
2# 1 928.2 –8.6
3# 1 624.3 –10.2
4# 1 092.5 –13.4

图8

涤纶原织物和不同有机颜料质量分数印花织物表面形貌SEM照片"

表4

有机颜料质量分数对印花织物性能的影响"

有机颜料质量
分数/％		 K/S值 耐干摩擦
色牢度/级		 耐湿摩擦
色牢度/级
1.2 9.7 4~5 4
1.8 10.1 4~5 4
2.4 15.5 4 4~5
3.0 17.2 2~3 3
3.6 19.6 2 2

表5

PUA和Si–PUA黏合剂印花织物K/S值、耐摩擦色牢度和相对硬挺度"

黏合剂
编号		 PDMS质
量分数/％		 K/S
值		 耐摩擦色牢度/级 相对硬挺
度/％
干 湿
A1 0 17.9 4 3 64.7
A2 7 17.5 4 4~5 57.2
A3 15 16.8 4~5 4 52.7
A4 20 16.2 4~5 5 49.9
涤纶原织物 — — — — 43.8

图9

不同颜料种类印花织物照片"

表6

颜料种类对印花织物性能的影响"

颜料种类 K/S值 耐摩擦色牢度/级 相对硬挺
度/％
干 湿
Xfast Yellow 0962 8.7 4 4 50.5
Xfast Green 8730 19.9 4 3 50.0
Xfast Orange 3100 6.2 4~5 4~5 49.5
Xfast Blue 7080 16.2 4~5 5 49.9
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