Effect of composition and structure of macromolecular polyurethane surfactant on structures and properties of waterborne polyurethane-acrylate latex

doi:10.11949/j.issn.0438-1157.20160794

CIESC Journal ›› 2016, Vol. 67 ›› Issue (12): 5208-5214.DOI: 10.11949/j.issn.0438-1157.20160794

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Effect of composition and structure of macromolecular polyurethane surfactant on structures and properties of waterborne polyurethane-acrylate latex

WANG Haili¹, FAN Renxiang¹, FANG Huagao^1,2, LIU Yang¹, WEI Haibing^1,2, YANG Shanzhong^1,2, DING Yunsheng^1,2

1 School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China;
2 Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, Hefei 230009, Anhui, China

Received:2016-06-08 Revised:2016-08-24 Online:2016-12-05 Published:2016-12-05
Supported by:
supported by the National High Technology Research and Development Program of China(2015AA033903), the AVIC Beijing Institute of Aeronautical Materials(cxy2012HFGD24) and the Key Project of Anhui Province(1301021016).

聚氨酯大分子表面活性剂组成结构对WPUA胶粒结构及其膜性能的影响

王海利¹, 范仁祥¹, 方华高^1,2, 刘阳¹, 魏海兵^1,2, 杨善中^1,2, 丁运生^1,2

1 合肥工业大学化学与化工学院, 安徽合肥 230009;
2 安徽省先进功能材料与器件重点实验室, 安徽合肥 230009

通讯作者: 丁运生。dingys@hfut.edu.cn
基金资助:
国家高技术研究发展计划项目（2015AA033903）；中国航空工业集团产学研项目（cxy2012HFGD24）；安徽省重点攻关项目（1301021016）。

Abstract

Abstract:

Macromolecular polyurethane surfactants(PUS) with equal degree of polymerization but different compositions and structures were designed and synthesized by reacting PCDL, PBA and PPG with isophorone diisocyanate(IPDI). Methyl methacrylate(MMA) monomer was polymerized in PUS micelles to prepare WPUA emulsions and dried latex films with different latex structure and morphology. Transmission electron microscopy(TEM), Zeta nanosizer, and rotating viscometer were employed to characterize latex morphology, particle size, and shear viscosity of WPUA emulsions. ATR-FTIR, water absorption measurement, electromechanical universal testing machine, and UV-Vis spectroscopy were employed to characterize structures, water resistance, mechanical properties, and physical aging behaviors of WPUA films. PUS composition and structure had a significant influence on morphology and structure of WPUA latexes and properties of dried films. Distinct core-shell structure was achieved in WPUA latex using PCDL-based PUS as macromolecular surfactant. WPUA-PCDL film exhibited good mechanical and aging-resistant properties.

Key words: surfactants, composition and structure, waterborne polyurethane-acrylate, emulsions, film

摘要：

设计了聚合度相同，但组成结构不同的聚氨酯大分子表面活性剂（PUS），并将此大分子表面活性剂用于甲基丙烯酸甲酯（MMA）的聚合，制备出乳胶粒结构不同的水性聚氨酯-丙烯酸酯乳液（WPUA），乳液经干燥成膜后得到不同的样膜。应用透射电镜（TEM）、Zeta纳米粒度仪及旋转黏度计对WPUA乳胶粒形貌、粒径和乳液黏度进行了测试与表征，通过ATR-FTIR、吸水率测试、万能材料试验机和紫外-可见光谱仪对WPUA膜的结构、耐水性、力学性能和物理老化行为进行了研究。结果表明，PUS组成结构会影响WPUA乳胶粒的结构，进而影响形成的WPUA膜的性能。WPUA-PCDL乳胶粒的核壳结构明显，其膜的力学和耐老化性能较好。

关键词: 表面活性剂, 组成结构, 水性聚氨酯-丙烯酸酯, 乳液, 膜

CLC Number:

TQ323.8

WANG Haili, FAN Renxiang, FANG Huagao, LIU Yang, WEI Haibing, YANG Shanzhong, DING Yunsheng. Effect of composition and structure of macromolecular polyurethane surfactant on structures and properties of waterborne polyurethane-acrylate latex[J]. CIESC Journal, 2016, 67(12): 5208-5214.

王海利, 范仁祥, 方华高, 刘阳, 魏海兵, 杨善中, 丁运生. 聚氨酯大分子表面活性剂组成结构对WPUA胶粒结构及其膜性能的影响[J]. 化工学报, 2016, 67(12): 5208-5214.

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Effect of composition and structure of macromolecular polyurethane surfactant on structures and properties of waterborne polyurethane-acrylate latex

聚氨酯大分子表面活性剂组成结构对WPUA胶粒结构及其膜性能的影响

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