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《材料导报》期刊社  2017, Vol. 31 Issue (14): 46-51    https://doi.org/10.11896/j.issn.1005-023X.2017.014.010
  材料研究 |
改性纳米二氧化硅/水性聚氨酯杂化皮革补伤剂的制备及表征*
龚居霞, 刘新华, 但卫华, 李晓琴, 但年华
四川大学皮革化学与工程教育部重点实验室, 成都 610065;
Preparation and Evaluation of a Leather-repairing Agent Made of Modified Nanometer-SiO2/Waterborne Polyurethane
GONG Juxia, LIU Xinhua, DAN Weihua, LI Xiaoqin, DAN Nianhua
The Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065;
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摘要 以自制聚酯和异佛尔酮二异氰酸酯(IPDI)为原料,添加不同用量的纳米SiO2,通过物理共混和原位聚合合成不同的水性聚氨酯乳液,并与进口聚氨酯补伤剂A比较。物理共混与原位聚合合成法制得聚氨酯的力学性能、粘数、吸水率、透光率、附着力均与纳米SiO2的改性方式与用量有关,与进口补伤剂A相比,所得聚氨酯的透光率不足,但附着力要优于进口补伤剂A。通过比较,添加0.10%吐温-80改性纳米SiO2和一定的助剂,原位聚合制得的纳米SiO2/水性聚氨酯材料可作为皮革补伤剂。
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龚居霞
刘新华
但卫华
李晓琴
但年华
关键词:  水性聚氨酯  纳米SiO2  改性  原位聚合  皮革补伤剂    
Abstract: The emulsion of different kinds of waterborne polyurethane was synthesized by the methods of physical blending and in-situ polymerization, in which home-made polyester and IPDI in the laboratory were used as raw materials and the addition of different amounts of nano-SiO2 was operated afterwards. The average particle size, mechanical property, viscosity, water absorption ratio, transmittance ratio, adhesion strength of polyurethane were closely associated with the dosage and modification method of nano-SiO2. As a conclusion, the optimal modified method was that the nano-SiO2/waterborne polyurethane emulsion was synthesized using the in-situ polymerization with addition of 0.10% nano-SiO2 modified by Tween-80, and then it was mixed with some auxiliary with appropriate proportion to make the leather-repairing agent.
Key words:  waterborne polyurethane    nano-SiO2    modification    in situ polymerization    leather-repairing agent
出版日期:  2017-07-25      发布日期:  2018-05-04
ZTFLH:  TS54  
基金资助: *四川省科技支撑计划(2016GZ0362)
作者简介:  龚居霞:女,1992年生,硕士研究生,研究方向为生物质化学工程 E-mail:gongjuxia1992@163.com 但年华:通讯作者,男,1975年生,副教授,主要从事清洁化制革生产研究 E-mail:lamehorse-8@163.com
引用本文:    
龚居霞, 刘新华, 但卫华, 李晓琴, 但年华. 改性纳米二氧化硅/水性聚氨酯杂化皮革补伤剂的制备及表征*[J]. 《材料导报》期刊社, 2017, 31(14): 46-51.
GONG Juxia, LIU Xinhua, DAN Weihua, LI Xiaoqin, DAN Nianhua. Preparation and Evaluation of a Leather-repairing Agent Made of Modified Nanometer-SiO2/Waterborne Polyurethane. Materials Reports, 2017, 31(14): 46-51.
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https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.014.010  或          https://www.mater-rep.com/CN/Y2017/V31/I14/46
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