陕西科技大学学报（自然科学版）2013，Vol.31Issue(1)：49-52,65,5.
葡萄糖改性水性聚氨酯的制备及性能研究
Synthesis and properties of waterborne polyurethane modified by glucose
摘要
Abstract
A series of anionic water-borne polyurethane emulsion modified by glucose were successfully prepared with dimethylol propionic acid(DMPA) as hydrophilic chain extender and glucose(PG) as crosslinker. Solidified films of the waterborne polyurethane were prepared by casting emulsions on Teflon surfaces. Fourier transform infared spectrometer (FT-IR)was used to characterize the structure of the polyurethane. The particle size and distribution of the resultant polyurethane emulsions was tested by the dynamic laser light scattering (DLLS). The stability and rheological behavior of polyurethane emulsion were investigatied. The mechanical properties and water resistance of the cast films were also measured. FT-IR indicates that glucose has been introduced into the main chain of polyurethane. The stability of polyurethane emulsion decreases with increasing w(PG). The storage modulus (G′) and loss modulus (G″) of polyurethane emulsion both increases with increasing oscillation frequency. It was found that the media resistance and mechanical properties of polyurethane films have been improved. When PG content increases from 0% to 4. 68% ,water absorption and acetone of films decreases, tensile strength increases from 10. 9 Mpa to 24. 2 Mpa.关键词
葡萄糖/水性聚氨酯/乳液/改性Key words
glucose/ polyurethane/ emulsion/ modified分类
化学化工引用本文复制引用
赖小娟,王磊,范华波,刘敏..葡萄糖改性水性聚氨酯的制备及性能研究[J].陕西科技大学学报（自然科学版）,2013,31(1):49-52,65,5.基金项目
陕西科技大学科研启动基金项目(BJ11-04) （BJ11-04）
陕西科技大学学术骨干培育计划项目(XSG2010012) （XSG2010012）
陕西省教育厅科研项目(12JK0595,11JS023) （12JK0595,11JS023）
