乙二胺后扩链TDI型聚氨酯水分散体的过程

doi:10.11949/j.issn.0438-1157.20161013

化工学报 ›› 2017, Vol. 68 ›› Issue (3): 1247-1252.DOI: 10.11949/j.issn.0438-1157.20161013

• 材料化学工程与纳米技术 • 上一篇下一篇

乙二胺后扩链TDI型聚氨酯水分散体的过程

范仁祥¹, 陈丁丁¹, 李嘉晋¹, 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 先进功能材料与器件安徽省重点实验室, 安徽合肥 230009

收稿日期:2016-07-20 修回日期:2016-11-21 出版日期:2017-03-05 发布日期:2017-03-05
通讯作者: 丁运生,dingys@hfut.edu.cn
基金资助:
安徽省重点攻关项目（1301021016）；中国航空工业集团产学研项目（cxy2012HFGD24）。

Macromolecular post-chain extension study of TDI-based waterborne polyurethane dispersions with ethylene diamine

FAN Renxiang¹, CHEN Dingding¹, LI Jiajin¹, 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, Hefei 230009, Anhui, China

Received:2016-07-20 Revised:2016-11-21 Online:2017-03-05 Published:2017-03-05
Contact: 10.11949/j.issn.0438-1157.20161013
Supported by:
supported by Key Project of Anhui Province (1301021016) and AVIC Beijing Institute of Aeronautical Materials (cxy2012HFGD24).

摘要/Abstract

摘要：

以甲苯二异氰酸酯（TDI）、聚氧化丙烯二醇和二羟甲基丙酸等为主要原料制备了聚氨酯水分散体，研究了水、扩链温度、原料的-NCO/-OH摩尔比及扩链比对乙二胺（EDA）后扩链TDI型聚氨酯水分散体过程的影响。FT-IR测试表明，分散体中的H₂O可通过与聚氨酯中残留异氰酸酯基团（-NCO）的竞争反应影响EDA的后扩链过程。分子量及粒径与zeta电位测试表明，H₂O扩链导致分散体失稳；低扩链比时，H₂O对EDA的后扩链过程影响明显，但高扩链比时，后扩链聚氨酯的分子量降低；扩链温度升高，经EDA后扩链聚氨酯的分子量降低，而分散体粒径增大。当原料的-NCO/-OH摩尔比为1.20、扩链温度为30℃、扩链比为60%时，可有效降低H₂O对EDA后扩链聚氨酯过程的影响。

关键词: 聚氨酯, 分散体, 甲苯二异氰酸酯, 水, 后扩链, 扩链比, 粒度分布

Abstract:

A series of polyurethane aqueous dispersions, which were prepared from raw materials of toluene diisocyanate (TDI), polypropylene glycol (PPG), and dimethylol propionic acid (DMPA), were used to study post-chain extension process with ethylene diamine (EDA) as chain extender, including factors of H₂O, temperature of post-chain extension, molar ratio of -NCO/-OH in raw materials, and chain extension ratio. FT-IR results showed that the post-chain extension process of polyurethanes with EDA was affected by H₂O in aqueous dispersion through competitive reactions of H₂O with residual -NCO groups in polyurethane chains. Measurement of molecular weight, particle diameter, and zeta potential of polyurethane dispersions before and after chain extension indicated that chain extension by H₂O resulted in instability of polyurethane dispersions. The influence of H₂O on EDA post-chain extension process was significant at low chain extension ratio, whereas molecular weight of chain-extended polyurethanes was lowered at high chain extension ratio. When chain extension temperature was increased, molecular weight of EDA chain-extended polyurethanes was decreased,but diameters of polyurethane dispersions were increased. With molar ratio of -NCO/-OH in raw materials at 1.20, chain extension temperature at 30℃, and chain extension ratio at 60%, the H₂O impact on post-chain extension of polyurethanes with EDA was reduced effectively.

Key words: polyurethane, dispersion, toluene diisocyanate, water, post-chain extension, chain extension ratio, particle size distribution

中图分类号:

TQ323.8

范仁祥, 陈丁丁, 李嘉晋, 丁运生. 乙二胺后扩链TDI型聚氨酯水分散体的过程[J]. 化工学报, 2017, 68(3): 1247-1252.

FAN Renxiang, CHEN Dingding, LI Jiajin, DING Yunsheng. Macromolecular post-chain extension study of TDI-based waterborne polyurethane dispersions with ethylene diamine[J]. CIESC Journal, 2017, 68(3): 1247-1252.

参考文献 23

[1]	PENG S J, JIN Y, CHENG X F, et al. A new method to synthesize high solid content waterborne polyurethanes by strict control of bimodal particle size distribution[J]. Progress in Organic Coatings, 2015, 86:1-10.
[2]	ZHAO J, ZHOU T, ZHANG J H, et al. Synthesis of a waterborne polyurethane-fluorinated emulsion and its hydrophobic properties of coating films[J]. Industrial & Engineering Chemistry Research, 2014, 53(49):19257-19264.
[3]	MADBOULY S A, XIA Y, KESSLER M R. Rheological behavior of environmentally friendly castor oil-based waterborne polyurethane dispersions[J]. Macromolecules, 2013, 46(11):4606-4616.
[4]	FLORIAN P, JENA K K, ALLAUDDIN S, et al. Preparation and characterization of waterborne hyperbranched polyurethane-urea and their hybrid coatings[J]. Industrial & Engineering Chemistry Research, 2010, 49(10):4517-4527.
[5]	WU G, LI J Q, CHAI C P, et al. Synthesis and characterization of novel post-chain extension flame retardant waterborne polyurethane[J]. RSC Advances, 2015, 5(118):97710-97719.
[6]	LEI L, ZHONG L, LIN X Q, et al. Synthesis and characterization of waterborne polyurethane dispersions with different chain extenders for potential application in waterborne ink[J]. Chemical Engineering Journal, 2014, 253:518-525.
[7]	NANDA A K, WICKS D A, MADBOULY S A, et al. Effect of ionic content, solid content, degree of neutralization, and chain extension on aqueous polyurethane dispersions prepared by prepolymer method[J]. Journal of Applied Polymer Science, 2005, 98(6):2514-2520.
[8]	KWAK Y S, PARK S W, KIM H D. Preparation and properties of waterborne polyurethane-urea anionomers-influences of the type of neutralizing agent and chain extender[J]. Colloid and Polymer Science, 2003, 281(10):957-963.
[9]	孙启龙, 黄少婵, 李建宗, 等. 乙二胺扩链剂对水性聚氨酯性能的影响[J]. 中国胶黏剂, 2005, 14(10):1-5. SUN Q L, HUANG S C, LI J Z, et al. The effect of ethylene diamine on the properties of aqueous polyurethane[J]. China Adhesives, 2005, 14(10):1-5.
[10]	张婷婷, 张龙越, 项尚林, 等. 乙二胺对复合薄膜用水性聚氨酯胶黏剂的影响[J]. 包装工程, 2007, 28(12):38-40. ZHANG T T, ZHANG L Y, XIANG S L, et al. Effects of ethylene diamine on waterborne polyurethane adhesives applied in laminated films[J].Packaging Engineering, 2007, 28(12):38-40.
[11]	JHON Y K, CHEONG I W, KIM J H. Chain extension study of aqueous polyurethane dispersions[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2001, 179(1):71-78.
[12]	LIU J, LIU H F, DENG L, et al. Improving aging resistance and mechanical properties of waterborne polyurethanes modified by lignin amines[J]. Journal of Applied Polymer Science, 2013, 130(3):1736-1742.
[13]	LI Y Y, NOORDOVER B A J, BENTHEM V R, et al. Chain extension of dimer fatty acid-and sugar-based polyurethanes in aqueous dispersions[J]. Chemical Engineering Journal, 2014, 52:12-22.
[14]	DELEBECQ E, PASCAULT J P, BOUTEVIN B, et al. On the versatility of urethane/urea bonds:reversibility, blocked isocyanate, and non-isocyanate polyurethane[J]. Chemical Reviews, 2013, 113(1):80-118.
[15]	WANG H Y, ZHOU Y M, HE M, et al. Effects of soft segments on the waterproof of anionic waterborne polyurethane[J]. Colloid and Polymer Science, 2015, 293(3):875-881.
[16]	LEE D K, TSAI H B, WANG H H, et al. Aqueous polyurethane dispersions derived from polycarbonatediols[J]. Journal of Applied Polymer Science, 2004, 94(4):1723-1729.
[17]	LI M, DANIELS E S, DIMONIE V, et al. Preparation of polyurethane/acrylic hybrid nanoparticles via a miniemulsion polymerization process[J]. Macromolecules, 2005, 38(10):4183-4192.
[18]	TIELEMANS M, ROOSE P, DE GROOTE P, et al. Colloidal stability of surfactant-free radiation curable polyurethane dispersions[J]. Progress in Organic Coatings, 2006, 55(2):128-136.
[19]	WU H C, LI Z G, ZHU L B, et al. Synthesis and stability research of reproducible aqueous polyurethane micelles with low de-blocking temperature[J]. Journal of Applied Polymer Science, 2015, 132(18):1-12.
[20]	POLJANSEK I, FABJAN E, MODERC D, et al. The effect of free isocyanate content on properties of one component urethane adhesive[J]. International Journal of Adhesion and Adhesives, 2014, 51:87-94.
[21]	KROL P. Synthesis methods, chemical structures and phase structures of linear polyurethanes. Properties and applications of linear polyurethanes in polyurethane elastomers, copolymers and ionomers[J]. Progress in Materials Science, 2007, 52(6):915-1015.
[22]	王小君, 余冬梅, 王静昌, 等. 不同二胺类后扩链剂对水性聚氨酯性能的影响[J]. 聚氨酯工业, 2014, 29(3):29-32. WANG X J, YU D M, WANG J C, et al. The effect of different diamine post chain extender on properties of waterborne polyurethane[J]. Polyurethane Industry, 2014, 29(3):29-32.
[23]	LI H, WEI S Q, QING C L, et al. Discussion on the position of the shear plane[J]. Journal of Colloid and Interface Science, 2003, 258(1):40-44.

乙二胺后扩链TDI型聚氨酯水分散体的过程

Macromolecular post-chain extension study of TDI-based waterborne polyurethane dispersions with ethylene diamine

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