皮胶原的状态对荆树皮栲胶渗透与填充的影响
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- 英文论文题名：Influence of the Status of Leather collagen on the Penetration and Filling of Mimosa extract
- 论文作者：付丽红 ; 佟付常 ; 田荟琳 ; 刘东磊 ; 匡卫 ; 芦建梅
- 英文论文作者：FU Lihong ; TONG Fuchang ; TIAN Huilin ; LIU Donglei ; KUANG Wei ; LU Jianmei ; College of Leather Chemical and Engineering ; Qilu University of Technology
- 年：2016
- 作者机构：齐鲁工业大学皮革化学与工程学院;
- 论文关键词：荆树皮栲胶 ; 渗透率 ; 填充 ; 液态明胶 ; 凝胶态明胶 ; 酸皮
- 英文论文关键词：mimosa extract ; penetration ; filling ; gelatin solution ; gelatin gel ; pickled skin
- 会议召开时间：2016-07-27
- 会议录名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会摘要集
- 英文会议录名称：Abstracts of 2016 the 11th National Conference on Leather Chemicals & 21st Annual Convention of China Leather Science and Technology Commission
- 语种：中文
- 分类号：TS512
- 学会代码：ZGHG
- 会议名称：2016第十一届全国皮革化学品学术交流会暨中国皮革协会技术委员会第21届年会
- 会议地点：中国山东济南
- 主办单位：中国皮革协会技术委员会、中国皮革协会皮革化工专业委员会、中国化工学会精细化工专业委员会
- 学会名称：中国化工学会
- 页数：1
- 文件大小：66k
- 原文格式：O
- 会议级别：全国
摘要
基于液态、凝胶态明胶和酸皮,通过改变明胶的浓度与pH、皮的电荷状态,测定不同阶段栲胶溶液的紫外吸光度、皮的厚度与面积和崩裂强度,探讨不同状态的皮胶原与栲胶渗透、填充和结合之间的关系。结果表明,(1)栲胶在皮胶原三种状态中现象结果异同;(2)栲胶与pH>5的液态明胶不结合,与pH≤4.5的迅速结合并生成沉淀,与pH5.0的明胶有结合;(3)栲胶在pH 4.5-5.1的明胶凝胶中渗透快,在pH 3.5中渗透慢,且栲胶与明胶的质量比(M/G)越大,栲胶的渗透越快。(4)植鞣前pH 5.0、鞣后pH 3.5-4.5,栲胶的吸收率大、填充与结合好,皮革面积得率和增厚率大、崩裂强度高。
Gelatin solution,gelatin gel and pickled skin were chosen to represent the three kinds of status of leather collagen.The penetration,filling and combination between leather collagen and vegetable tannin extract were investigated by measuring the ultraviolet absorbance of mimosa extract solution,thickness,area and bursting strength of skin at different stages when adjusting the concentration and pH value of gelatin solution and the charge status of skin.Although the experimental phenomena when adding mimosa extract into three kinds of leather collagen system were different,the results were the same.When pH value was higher than 5,mimosa extract did not combine gelatin in solution state.When pH value was lower than4.5,mimosa extract combined with gelatin immediately and precipitation appeared.When pH value was 5,mimosa extract combined with gelatin also.The penetration rate of mimosa extract in gelatin gel was larger when pH value ranged from 4.5 to 5.1.When pH value was 3.5,the penetration rate was smaller.Moreover with the increase of the ratio between mimosa extract and gelatin(M/G),the penetration rate of mimosa extract became bigger.As to pickled skin,when the pH value before vegetable tanning was 5.0 and after tanning was 3.5~4.5,the absorption rate,filling and combination of mimosa extract were good.
Gelatin solution,gelatin gel and pickled skin were chosen to represent the three kinds of status of leather collagen.The penetration,filling and combination between leather collagen and vegetable tannin extract were investigated by measuring the ultraviolet absorbance of mimosa extract solution,thickness,area and bursting strength of skin at different stages when adjusting the concentration and pH value of gelatin solution and the charge status of skin.Although the experimental phenomena when adding mimosa extract into three kinds of leather collagen system were different,the results were the same.When pH value was higher than 5,mimosa extract did not combine gelatin in solution state.When pH value was lower than4.5,mimosa extract combined with gelatin immediately and precipitation appeared.When pH value was 5,mimosa extract combined with gelatin also.The penetration rate of mimosa extract in gelatin gel was larger when pH value ranged from 4.5 to 5.1.When pH value was 3.5,the penetration rate was smaller.Moreover with the increase of the ratio between mimosa extract and gelatin(M/G),the penetration rate of mimosa extract became bigger.As to pickled skin,when the pH value before vegetable tanning was 5.0 and after tanning was 3.5~4.5,the absorption rate,filling and combination of mimosa extract were good.
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