A paper sizing agent based on leather collagen hydrolysates modified by glycol diglycidyl ether and its compound performance

作者：Wang, Xuechuan^*; Chen, Ke; Li, Wei; Hao, Dongyan; Guo, Peiying

来源：International Journal of Biological Macromolecules, 2019, 124: 1205-1212.

DOI：10.1016/j.ijbiomac2018.12.047

• Collagen hydrolysate
• Sizing agent
• Cross-linking agent
• Corrugated paper
• Water resistance

In this research, collagen hydrolysates with different average molecular weights (Mn) from leather collagen were chosen as raw materials. Five environmental-friendly sizing agents (SA) were prepared by cross-linking collagen hydrolysates with glycol diglycidyl ether (GDE) and further grafting them with butyl acrylate (BA) and styrene (St). Then the compound sizing agents (SGDESA-x, x = 1, 2, 3 and 4) were obtained by simple physical mixing of GDESA and starch. The surface sizing performance of GDESA and compound sizing agents were studied. The research result shows that both physical, mechanical properties and water resistance of the corrugated paper coated by GDESA were significantly improved when Mn of collagen hydrolysate was about 10,000, and its emulsion exhibited robust stability in long standing time. Furthermore, when the SGDESA-2 was used as a sizing agent, the coated corrugated paper exhibited strong water resistance, good physical and mechanical properties even after refolded for 20 times.

• 出版日期2019-3-1
• 单位陕西科技大学