Synthesis and characterization of PDMS modified UV-curable waterborne polyurethane dispersions for soft tact layers

被引:61
作者
Chenyan Bai [1 ]
Xingyuan Zhang [1 ]
Jiabing Dai [1 ]
机构
[1] Univ Sci & Technol China, Dept Polymer Sci & Engn, Anhua 230026, Peoples R China
关键词
waterborne polyurethane; UV-curable; polysiloxane; soft tact layer;
D O I
10.1016/j.Porgcoat.2007.07.003
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A series of UV-curable waterborne polyurethane dispersions (Si-PUs) modified by hydroxybutyl-terminated polydimethylsiloxanes (PDMS) were synthesized by incorporating the PDMS into the soft segment of PU chains. The structure was confirmed by the Fourier transform infrared spectroscopy (FTIR). The effect of PDMS content on the Si-PUs properties was investigated. The results of UV curing behaviors showed that the incorporation of PDMS decreased the C = C conversion rate but had little effect on the final conversion. Water resistance and surface properties of the UV cured films with different PDMS content had been investigated. The water diffusion behavior in the films agreed with the Fickian diffusion mechanism. The investigation of the scrub resistance to methyl ethyl ketone (MEK) and the flexibility illustrated that PDMS modified UV-curable waterborne polyurethanes could exhibit both good chemical resistance and flexibility. In addition, the tensile strength of the films with different PDMS content was also studied. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:63 / 68
页数:6
相关论文
共 21 条
[1]  
Abusafieh A, 1997, J APPL POLYM SCI, V63, P75, DOI 10.1002/(SICI)1097-4628(19970103)63:1<75::AID-APP8>3.0.CO
[2]  
2-P
[3]   A new UV curable waterborne polyurethane: Effect of C=C content on the film properties [J].
Bai, CY ;
Zhang, XY ;
Dai, JB ;
Li, WH .
PROGRESS IN ORGANIC COATINGS, 2006, 55 (03) :291-295
[4]  
Davis J, 2003, MATER PERFORMANCE, V42, P24
[5]   Accelerated testing of waterborne coatings [J].
Fekete, É ;
Lengyel, B .
PROGRESS IN ORGANIC COATINGS, 2005, 54 (03) :211-215
[6]   A complete new design for waterborne 2-pack PUR coatings with robust application properties [J].
Geurink, PJA ;
Scherer, T ;
Buter, R ;
Steenbergen, A ;
Henderiks, H .
PROGRESS IN ORGANIC COATINGS, 2006, 55 (02) :119-127
[7]  
Huang L, 2002, ADHES AGE, V45, P19
[8]   SURFACE-ENERGY ANALYSIS OF BIOADHESION [J].
KAELBLE, DH ;
MOACANIN, J .
POLYMER, 1977, 18 (05) :475-482
[9]   UV-curable polyurethane dispersion for cationic electrodeposition coating [J].
Kim, YB ;
Kim, HK ;
Yoo, JK ;
Hong, JW .
SURFACE & COATINGS TECHNOLOGY, 2002, 157 (01) :40-46
[10]   Comparison of the properties of waterborne polyurethane-ureas containing different triblock glycols for water vapor permeable coatings [J].
Kwak, YS ;
Kim, EY ;
Kim, HD ;
Lee, JB .
COLLOID AND POLYMER SCIENCE, 2005, 283 (08) :880-886