	US 11,746,232 B2
	Method of preparing vinyl collagen microsphere polyamide fiber composite material
Na Xu, Xi'an (CN); Yanmei Xing, Xi'an (CN); and Xuechuan Wang, Xi'an (CN)
Assigned to SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY, Shaanxi (CN)
Filed by Na Xu, Xi'an (CN); Yanmei Xing, Xi'an (CN); and Xuechuan Wang, Xi'an (CN)
Filed on Oct. 11, 2021, as Appl. No. 17/498,181.
Claims priority of application No. 202110004775.6 (CN), filed on Jan. 4, 2021.
Prior Publication US 2022/0213318 A1, Jul. 7, 2022
Int. Cl. C08L 77/00 (2006.01); C08J 3/24 (2006.01); C08L 89/06 (2006.01); D06M 10/00 (2006.01); D06M 13/127 (2006.01); D06M 13/507 (2006.01); D06M 15/15 (2006.01); D06M 101/34 (2006.01)

CPC C08L 77/00 (2013.01) [C08J 3/247 (2013.01); C08L 89/06 (2013.01); D06M 10/001 (2013.01); D06M 13/127 (2013.01); D06M 13/507 (2013.01); D06M 15/15 (2013.01); C08J 2389/06 (2013.01); C08L 2205/16 (2013.01); C08L 2205/18 (2013.01); C08L 2312/00 (2013.01); D06M 2101/34 (2013.01); D06M 2400/01 (2013.01)]

6 Claims

1. A method of preparing a vinyl collagen microsphere polyamide fiber composite material, comprising the following steps:

step 1: modifying a collagen with methacrylic anhydride to obtain a vinyl collagen, then emulsifying and cross-linking the vinyl collagen to obtain vinyl collagen microspheres;

step 2: treating a polyamide fiber substrate with formaldehyde to obtain a hydroxylated polyamide fiber substrate, treating the hydroxylated polyamide fiber substrate with (3-mercaptopropyl)trimethoxysilane (MPS) to obtain a sulfhydrylated polyamide fiber substrate; and

step 3: modifying the sulfhydrylated polyamide fiber substrate with the vinyl collagen microspheres to obtain the vinyl collagen microsphere polyamide fiber composite material.