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首页> 外文期刊>Journal of Applied Polymer Science >Study on Porous Silk Fibroin Materials. II. Preparation and Characteristics of Spongy Porous Silk Fibroin Materials
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Study on Porous Silk Fibroin Materials. II. Preparation and Characteristics of Spongy Porous Silk Fibroin Materials

机译:多孔丝素蛋白材料的研究。二。海绵多孔丝素蛋白材料的制备及特性

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摘要

Porous silk fibroin materials, with average pore size 10 -300 1J.In, pore : density I -2000/mm2, and porosity 35 -70%, were prepared by freeze drying aqueous ~ solution of silk fibroin obtained by dissolving silk fibroin in ternary solvent CaCI2 .~ CH3CH2OH .~O. Pore size distribution of such materials mostly accorded with :l logarithmic normal distribution. It is possible to control the aforementioned structural " parameters and the physical properties of moisture permeability, compressibility, strength, elongation, etc., by adjusting freezing temperature and concentration of silk fibroin solution. Above glass transition zone ( -34 --20°C) of silk fibroin, the freezing : temperature has more significant effect on the structure and properties of porous silk,t fibroin materials.
机译:通过将由丝素蛋白溶解于三元溶液中得到的丝素蛋白水溶液冷冻干燥,制得平均孔径为10 -300 1J的多孔丝素蛋白材料。孔隙:密度I -2000 / mm2,孔隙率35 -70%。溶剂为CaCl2·〜CH3CH2OH·〜O。这些材料的孔径分布主要符合对数正态分布。通过调节冷冻温度和丝素蛋白溶液的浓度,可以控制上述结构参数和透湿性,可压缩性,强度,伸长率等物理性能。在玻璃化转变温度以上(-34 --20°C丝素蛋白的冷冻过程:温度对多孔丝素蛋白材料的结构和性能影响更大。

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