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篇目详细内容 |
【篇名】 |
Synthesis and surface properties of polyurethane modified by polysiloxane |
【刊名】 |
Frontiers of Chemistry in China |
【刊名缩写】 |
Front. Chem. China |
【ISSN】 |
1673-3495 |
【EISSN】 |
1673-3614 |
【DOI】 |
10.1007/s11458-008-0001-8 |
【出版社】 |
Higher Education Press and Springer-Verlag |
【出版年】 |
2008 |
【卷期】 |
3
卷1期 |
【页码】 |
1-5
页,共
5
页 |
【作者】 |
FENG Linlin;
ZHANG Xingyuan;
DAI Jiabing;
GE Zhen;
CHAO Jing;
BAI Chenyan;
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【关键词】 |
dihydroxybutyl-terminated polydimethylsiloxane; polyurethane modified by polysiloxane; contact angle; surface tension |
【摘要】 |
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%. |
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