Page 217 - 《精细化工》2021年第12期
P. 217
第 38 卷第 12 期 精 细 化 工 Vol.38, No.12
2021 年 12 月 FINE CHEMICALS Dec. 2021
纺织染整助剂
重氮化直接灰 D 共价改性石墨烯的水分散性
及其用于织物的抗辐射整理
1
1*
温玉鑫 ,鲍利红 1,2* ,凌嘉雯
(1. 北京服装学院 材料设计与工程学院,北京 100029;2. 北京市服装材料研发与评价重点实验室,北
京 100029)
摘要:将直接灰 D 重氮化后共价接枝到自制的还原氧化石墨烯(rGO)上,制备了改性石墨烯(MG),以提高
石墨烯在水中的分散性,使其更适用于纺织品整理。采用 Raman、FTIR、XPS、TGA 对得到的 MG 进行了表征,
采用 UV-Vis 考察了其在水中的分散性。结果表明,染料分子成功接枝到石墨烯上,接枝率达 21.7%左右。结果
发现,相对于 rGO,MG 在水中的分散性和稳定性都大大提高,MG 水溶液的最大饱和度达到 0.185 g/L,静置 7
d 后,仍可达到 0.092 g/L。将 MG 初步用于棉织物的抗辐射功能整理,整理织物的表面电阻为 53 MΩ,相对直
接灰 D 和 rGO 所整理织物的表面电阻(>220 MΩ)大大降低,且经过 10 次洗涤后,其表面电阻仍可保持在 120
MΩ 以内。
关键词:重氮盐;共价键;功能化石墨烯;分散性;导电性;纺织染整助剂
中图分类号:X791 文献标识码:A 文章编号:1003-5214 (2021) 12-2579-07
Water dispersibility of diazotized direct grey D covalently modified
graphene and its use in anti-radiation finishing of fabrics
1
1*
WEN Yuxin , BAO Lihong 1,2* , LING Jiawen
(1. School of Materials Design & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China;
2. Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing 100029, China)
Abstract: In order to improve the dispersion of graphene in water and make it more suitable for textile
finishing, diazotized direct grey D was covalently grafted onto self-made reduced graphene oxide (rGO)
and modified graphene (MG) was prepared. The obtained MG was characterized by Raman, FTIR, XPS and
TGA. Its dispersibility in water was investigated by UV-Vis. The results showed that the dye molecule was
successfully grafted on rGO and the grafting rate reached a 21.7%. The dispersibility and stability of MG in
water were greatly improved compared with those of rGO. The maximum saturation of MG was 0.185 g/L
and still remained 0.092 g/L after standing for 7 d. MG was preliminarily used in the anti-radiation finishing
cotton fabric. It was found that the surface resistance of the finished fabric was 53 MΩ, which was smaller
than those of the fabrics finished by direct grey D and rGO (>220 MΩ). Moreover, after 10 times of
washing, the surface resistance could still keep within 120 MΩ.
Key words: diazonium salt; covalent bond; functionalized graphene; dispersion properties; conductivity;
dyeing and finishing auxiliaries
2
[4]
石墨烯是一种以 sp 杂化碳原子相连接,呈蜂 表面积 ,受到国内外学者的广泛关注。目前已成
[1]
窝状二维结构的材料,因其具有高的热导率 、电 为生物、医学、物理、化学等领域的研究热点。
[2]
[3]
导率 、室温载流子迁移率 以及非常可观的理论比 普通石墨烯由于 π-π 堆积、表面极性基团含量
收稿日期:2021-05-18; 定用日期:2021-09-08; DOI: 10.13550/j.jxhg.20210505
作者简介:温玉鑫(1996—),男,硕士生,E-mail:1194807814@qq.com。联系人:鲍利红(1978—),女,教授,E-mail:clyblh@ bift.edu.cn;
凌嘉雯(1999—),女,硕士生,E-mail:552079279@qq.com。