高校化学工程学报2017，Vol.31Issue(4)：996-1000,5.DOI:10.3969/j.issn.1003-9015.2017.00.033
胶原降解物-三聚氰胺复合物及粉粒性能
Degraded-Collagen/Melamine Composites and their Powder Properties
王帅 1杨茂 1张悦 1陈治军 2单志华1
作者信息
- 1. 皮革化学与工程教育部重点实验室(四川大学), 四川 成都 610065
- 2. 徐州鸿丰高分子材料有限公司, 江苏 徐州 221200
- 折叠
摘要
Abstract
In order to recycle chrome leather scraps, degraded collagen was extracted from chrome leather scraps by an alkaline method, which is further used in the preparation of the degraded-collagen/melamine compound (CMC). Free formaldehyde contents in CMC were controlled by multiple addition of degraded collagen. SDS-PAGE results show that the molecular weight of CMC is in a range of 15~25 kDa, which is larger than original samples. Free amino groups of CMC also decrease. SEM results show that the average particle size of CMC is significantly larger than that of degraded collagen, white the original particle morphology is kept. The average particle size of CMC dispersed in water is ~ 125 nm with narrow distribution when pH is 7~8. The isoelectric point of CMC is pH 4~5 from potentiometric analysis. The hot melting temperature of CMC is ≥120℃. These results indicate potential applications of the CMC powder prepared.关键词
铬革屑/胶原降解物/三聚氰胺/复合物/粉粒Key words
chrome leather scraps/degraded collagen/melamine/compound/powder分类
生物科学引用本文复制引用
王帅,杨茂,张悦,陈治军,单志华..胶原降解物-三聚氰胺复合物及粉粒性能[J].高校化学工程学报,2017,31(4):996-1000,5.
