Synthesis and surface properties
of polyurethane modified by polysiloxane

doi:10.1007/s11458-008-0001-8

Front. Chem. China

2008, Vol. 3

Issue (1) : 1-5 https://doi.org/10.1007/s11458-008-0001-8

Synthesis and surface properties of polyurethane modified by polysiloxane

BAI Chenyan, FENG Linlin, ZHANG Xingyuan, DAI Jiabing, GE Zhen, CHAO Jing

Department of Polymer Science and Engineering, University of Science and Technology of China

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Abstract A series of polyurethanes modified by polysiloxane (Si-PU) were synthesized based on 2,4-toluene diisocyanate (TDI), dihydroxybutyl-terminated polydimethylsiloxane (DHPDMS), polytetramethylene glycol (PTMG) and 1,4-butanediol (BDO). Fourier transform infrared spectroscopy analysis showed that DHPDMS had been incorporated into the polyurethane chains. With the increase of DHPDMS content, the water contact angle increased while the surface tension decreased. As the DHPDMS content increases above 5%, both the contact angle and the surface tension tend to approach a constant. The contact angle increases with increasing temperature, and it tends to approach a constant when the temperature is higher than 50°C. The result indicates that Si-PU exhibits good surface and mechanical properties when the DHPDMS content is 5%.

Issue Date: 05 March 2008

Cite this article:

FENG Linlin,BAI Chenyan,ZHANG Xingyuan, et al. Synthesis and surface properties of polyurethane modified by polysiloxane[J]. Front. Chem. China, 2008, 3(1): 1-5.

URL:

https://academic.hep.com.cn/fcc/EN/10.1007/s11458-008-0001-8
https://academic.hep.com.cn/fcc/EN/Y2008/V3/I1/1

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