胶原降解物/三聚氰胺填料的制备
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- 英文论文题名：Preparation of degraded collagen/Melamine Fillings
- 论文作者：杨茂 ; 陈治军 ; 龙忠珍
- 英文论文作者：YANG Mao ; CHENG Zhijun ; LONG Zhongzhen ; Xuzhou Hoffen chemicals co. ; LTD.
- 年：2016
- 作者机构：徐州鸿丰高分子材料有限公司;
- 论文关键词：铬革屑 ; 废弃物 ; 胶原降解物 ; 三聚氰胺 ; 甲醛
- 英文论文关键词：chrome leather scraps ; waste ; degraded collagen ; melamine ; formaldehyde
- 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：TS529
- 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：44k
- 原文格式：O
- 会议级别：全国
摘要
采用石灰在反应温度85~90℃下对废弃铬革屑进行脱铬、降解提取胶原降解物。将提取的胶原降解物与三聚氰胺及甲醛共缩聚制得胶原降解物/三聚氰胺树脂(CMR)作为一种皮革填充剂。碘量法测得CMR中游离甲醛含量为61 mg/kg;聚丙烯酰胺凝胶电泳法测得CMR的分子量大于26.6kD,分子量分布较宽;SEM可知CMR粉体平均粒径明显增大,但仍保持胶原降解物原有的缔合形貌;电位分析及纳米粒度仪证实CMR水分散液等电点为pH4~5,平均粒径约为125 nm。
In the experiment,wasted chrome leather scraps were degraded by lime to removing chromium and extracting collagen at 85~90 ℃.As a leather filler,the degraded collagen/melamine resin was prepared by extracted degraded collagen,melamine and formaldehyde.And the free formaldehyde content of CMR was 61 mg/kg tested by iodine volume method;the molecular weight of CMR is over 26.6 kD,and present a broad molecular weight distribution measured by polyacrylamide gel electrophoresis;the average particle size observed by SEM become significantly large,but still keep the original association morphology of degraded collagen;the isoelectric point of CMR aqueous dispersions was pH 4~5,the average particle size was about 125 nm.
In the experiment,wasted chrome leather scraps were degraded by lime to removing chromium and extracting collagen at 85~90 ℃.As a leather filler,the degraded collagen/melamine resin was prepared by extracted degraded collagen,melamine and formaldehyde.And the free formaldehyde content of CMR was 61 mg/kg tested by iodine volume method;the molecular weight of CMR is over 26.6 kD,and present a broad molecular weight distribution measured by polyacrylamide gel electrophoresis;the average particle size observed by SEM become significantly large,but still keep the original association morphology of degraded collagen;the isoelectric point of CMR aqueous dispersions was pH 4~5,the average particle size was about 125 nm.
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