Page 191 - 《精细化工》2021年第5期

第 38 卷第 5 期 精 细 化 工 Vol.38, No.5
202 1 年 5 月 FINE CHEMICALS May 2021

橡塑助剂
酪素基 rGO 复合乳液的制备及其阻燃性能

安 文 1,2 ，马建中 1,2* ，徐群娜 1,2*

（1. 陕西科技大学 轻工科学与工程学院，陕西 西安 710021；2. 轻化工程国家级实验教学示范中心，
陕西 西安 710021）

摘要：为制备具有增强阻燃效果的皮革涂饰材料，首先以天然石墨为原料，采用 Hummers 法制备氧化石墨烯
（GO），并采用 NaBH 4 对其进行还原得到还原氧化石墨烯（rGO）。通过 FTIR，XRD 和 TEM 等对其进行表征。
结果表明，成功制备了 rGO 纳米材料。随后，采用物理共混法将 rGO 引入天然蛋白质酪素体系，制备酪素基 rGO
复合乳液并将其应用于皮革涂饰，对涂饰后革样的阻燃性能、力学性能和耐干湿擦性能进行测试。结果表明，
当 rGO 的含量为酪素体系溶质质量的 0.5%时，与未含 rGO 的酪素体系相比，涂饰后革样的燃烧速率下降 47.2%，
极限氧指数（LOI）由 24.2%增加至 26.3%，热释放速率（HRR）下降 53.1%，总热释放速率（THR）也有所降
低。rGO 的引入对涂饰后革样的力学性能和耐干湿擦性能影响不大。
关键词：酪素；rGO；阻燃性；皮革涂饰；橡塑助剂
中图分类号：TS529.5 文献标识码：A 文章编号：1003-5214 (2021) 05-1045-08

Preparation and flame retardant properties of

casein-based rGO composite emulsion

1,2
AN Wen , MA Jianzhong 1,2* , XU Qunna 1,2*
（1. College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science & Technology, Xi'an
710021, Shaanxi, China; 2. National Demonstration Center for Experimental Light Chemistry Engineering Education,
Xi'an 710021, Shaanxi, China）

Abstract: In order to prepare leather finishing materials with enhanced flame retardant effect, graphene
oxide (GO) was prepared from natural graphite by modified Hummers method, and reduced by NaBH 4 to
obtain reduced graphene oxide (rGO). The as-obtained graphene was characterized by FTIR, XRD and
TEM. The results showed that rGO was successfully prepared. Then, physical blending method was used to
introduce rGO into natural protein casein system to prepare casein-based rGO composite emulsion. The
composite emulsion was used as leather finish. The flame-retardant properties, mechanical property, as well
as dry and wet rubbing resistance of the finished leather samples were tested. Compared with those of the
leather sample finished by the casein system without rGO, the combustion rate of the leather samples
finished by the casein system (rGO content being 0.5% of the solute mass of the casein system) decreased
by 47.2%, the limit oxygen index (LOI) increased from 24.2% to 26.3%, the heat release rate (HRR)
decreased by 53.1%, and the total heat release rate (THR) also decreased. At the same time, the introduction
of rGO had little effect on the mechanical properties, as well as dry and wet rubbing resistance of finished
leather samples.
Key words: casein; rGO; flame resistance; leather finishing; rubber and plastics auxiliarie

近年来，国内外火灾频繁发生，对人们的生活 造成了极大的危害。其中，因皮革制品易燃引起的

收稿日期：2020-09-21; 定用日期：2020-12-08; DOI: 10.13550/j.jxhg.20200881
基金项目：国家自然科学基金重点项目（21838007）；国家自然科学基金面上项目（22078185）
作者简介：安 文（1994—），女，硕士生，E-mail：anwensust@163.com。联系人：马建中（1960—），男，教授，E-mail：majz@
sust.edu.cn；徐群娜（1987—），女，副教授，E-mail：xxqqnn870304@163.com。