引用本文:
陈精华, 刘伟区, 宣宜宁, 张斌. 氨基硅油改性聚醚型聚氨酯[J]. 应用化学,
2004, 21(6): 629-632.
Citation: CHEN Jing-Hua, LIU Wei-Qu, XUAN Yi-Ning, ZHANG Bin. Modification of Polyether Polyurethane with Amino Siloxane[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 629-632.
Citation: CHEN Jing-Hua, LIU Wei-Qu, XUAN Yi-Ning, ZHANG Bin. Modification of Polyether Polyurethane with Amino Siloxane[J]. Chinese Journal of Applied Chemistry, 2004, 21(6): 629-632.
氨基硅油改性聚醚型聚氨酯
English
Modification of Polyether Polyurethane with Amino Siloxane
Abstract:
A series of modified polyurethane preoligomers with different amino siloxane content were synthesized by reaction of aminoethyl-aminopropyl poly(dimethyl siloxane)(AEAPS) with toluene diisocyanate and polyoxypropylene glycol and characterized by FT-IR. The modified polyurethane materials were prepared by the reacting the preoligomers with curing agent 3,3'-dichloro-4,4'-diamino-diphenylmethane(MOCA). The properties of materials were examined by stress-strain analysis, thermal resistance analysis and surface water contact angle measurement. The siloxane modified polyurethanes with 10%(mass fraction) AEAPS revealed the best comprehensive properties in comparison with the pure polyurethanes, the strain and stress were improved by 31% and 52% respectively, and the water contact angle increased by 23°.
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Key words:
- polyurethane
- / amino siloxane
- / modification
- / synthesis
- / property
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