明胶/微纤化纤维素共混复合膜的逾渗研究
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摘要
以共混的方法制备了明胶/微纤化纤维素(Gelatin/MFC)复合膜。测定了不同MFC含量(0wt%～1wt%)下复合膜的抗拉强度[(2.3～13.3)MPa]、断裂伸长率(55%～9%)和热缩性(3.3%～1.9%)。当添加MFC到一定量时,复合膜的抗拉强度、断裂伸长率和热缩性的数值都发生了突变。结果表明,明胶/微纤化纤维素共混复合膜存在逾渗现象,逾渗阈值约为0.35wt%MFC含量。
Gelatin/MFC composite membranes were prepared by blending method. The tensile strength[(2.3～13.3)MPa], break elongation rate(55%～9%) and heat shrinkability(3.3%～1.9%) of the composite films with different MFC content(0 wt%～1 wt%) were determined. It was found that the tensile strength,break elongation rate and thermal shrinkage value of the composite films changed abruptly when the MFC was added to a certain amount. The results showed that there was percolation phenomenon in the blend membrane of gelatin/MFC, and the percolation threshold was about 0.35 wt% MFC content.
Gelatin/MFC composite membranes were prepared by blending method. The tensile strength[(2.3～13.3)MPa], break elongation rate(55%～9%) and heat shrinkability(3.3%～1.9%) of the composite films with different MFC content(0 wt%～1 wt%) were determined. It was found that the tensile strength,break elongation rate and thermal shrinkage value of the composite films changed abruptly when the MFC was added to a certain amount. The results showed that there was percolation phenomenon in the blend membrane of gelatin/MFC, and the percolation threshold was about 0.35 wt% MFC content.
引文
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[7]宋孝周,郭康权,冯德君,等.农作物秸秆特性及其重组材性能[J].农业工程学报,2009,25(7):180184.
[8]项秀东,万小芳,李友明,等.微纤化纤维素的制备及其应用的研究进展[J].中国造纸,2013,10(7):59-65.
[9]Saberi A A.Recent advances in percolation theory and its applications[J].Physics Reports,2015,578(1):1-32.
[10]Vigolo B,Coulon C,Maugey M,et al.An Experimental Approach to the Percolation of Sticky Nanotubes[J].Science,2005,5736(309):920-923.
[11]Saberi A A.Percolation description of the global topography of Earth and the moon[J].Physical Review Letters,2013,110(17):2368-2373.
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[15]Anekal S G,Bahukudumbi P,Bevan M A.Dynamic signature for the equilibrium percolation threshold of attractive colloidal fluids[J].Phys Rev E Stat Nonlin Soft Matter Phys,2006,73(1):020403.
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[17]Baek S K,Kim B J.Critical condition of the waterretention model[J].Physical Review E Statistical Nonlinear&Soft Matter Physics,2012,85(3 Pt 1):032103.
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[20]江泽慧,王汉坤,余雁,等.植物源微纤化纤维素的制备及性能研究进展[J].世界林业研究,2012,25(02):46-50.