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影响明胶膜性能的因素研究
引用本文:林海莉,曹静,陈高礼,生丽华. 影响明胶膜性能的因素研究[J]. 淮北煤炭师范学院学报(自然科学版), 2007, 28(4): 41-44
作者姓名:林海莉  曹静  陈高礼  生丽华
作者单位:淮北煤炭师范学院化学系,安徽,淮北,235000
基金项目:淮北煤炭师范学院人才引进启动基金项目(6293)
摘    要:用简单的手涂方法制备了明胶膜,研究了明胶溶液的浓度、pH值、增塑剂甘油的用量以及添加剂乙醇的用量对明胶膜抗拉强度的影响.研究结果表明:(1)明胶溶液浓度增加,膜的抗拉强度逐渐增大;(2)成膜液的pH值在7.0左右时,膜的抗拉强度最大;(3)随着增塑剂甘油含量的增加,膜干燥所需时间增长且抗拉强度降低;(4)乙醇用量为10%时,膜的抗拉强度最大;(5)明胶膜在不同pH值的缓冲溶液中,溶胀性能不同。

关 键 词:明胶  明胶膜  抗拉强度  溶胀性能
文章编号:1672-7177(2007)04-0041-04
收稿时间:2007-06-12
修稿时间:2007-06-12

Study on Influencing Factors of Gelatin Films
LIN Hai-li,CAO Jing,CHEN Gao-li,SHENG Li-hua. Study on Influencing Factors of Gelatin Films[J]. Journal of Huaibei Coal Industry Teachers College(Natural Science edition), 2007, 28(4): 41-44
Authors:LIN Hai-li  CAO Jing  CHEN Gao-li  SHENG Li-hua
Abstract:Gelatin films were prepared by the simple manual-coating technology.The effects of the concentration and pH of gelatin solution,amount of plasticizer-glycerin and ethanol on the tensile strength of gelatin films were studied.The results showed that:(1)the tensile strength of gelatin films increased as the concentration of gelatin increasing and reached a maximum;(2)when the pH of film-forming solution was about 7.0,the as-prepared gelatin film had the maximal tensile strength;(3)the drying time of gelatin films increased and the tensile strength decreased with the amount of glycerin;(4)the tensile strength of gelatin film reached a maximum when the amount of ethanol was about 10 %of gelatin;(5) and the swelling ratio of gelatin films changed with the different buffer solutions.
Keywords:gelatin  gelatin films  tensile strength  swelling property
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