Page 18 - 《含能之美》2019封面论文

136 菅晓霞，宋育芳，赵盟辉，梁益，周伟良，肖乐勤

Preparation and Performance of Self⁃healing Binder Based on GAP

JIAN Xiao⁃xia，SONG Yu⁃fang，ZHAO Meng⁃hui，LIANG Yi，ZHOU Wei⁃liang，XIAO Le⁃qin
（School of Chemistry Engineering，Nanjing University of Science and Technology，Nanjing 210094，China）
Abstract：To prolong the storage life of binder，the poly（glycidyl azide） ether（GAP）‐based binders with self‐healing perfor‐
mance were firstly synthesized by introducing disulfide functional group into an azide binder through an one‐step method. Fouri‐
er transform infrared spectroscopy（FTIR），X‐ray diffractometry（XRD）and optical microscopy were used to characterize its struc‐
ture and surface topography characterization. On this basis，the self‐healing efficiency under different self‐healing temperature
and different self‐healing time was examined through the change of tensile strength before and after self‐healing. Results show
that the synthesized GAP‐based self‐healing binder has a polyurethane structure，the surface cracks of self‐healing binder are
completely healed after 24 h at 60 ℃. Increasing the temperature and prolonging the self‐healing time are helpful to improve the
self‐healing efficiency. At the same time，the self‐healing efficiency is firstly improved and then decreased with increasing mass
fraction of the cross‐linking agent，in which，the self‐healing efficiency for the formula with a cross‐linker mass fraction of 8%
can reach 98%. Compared with control sample with the self‐healing efficiency as 61.7%，which proves that the introduction of
disulfide functional groups can improve the self‐healing efficiency of the system.
Key words：poly（glycidyl azide）ether（GAP）；self‐healing；disulfide bond；binder
CLC number：TJ55；TJ04 Document code：A DOI：10.11943/CJEM2018169

读者·作者·编者

《含能材料》“损伤与点火”专栏征稿

含能暵料的损令特征与点火过程暕宵切的联系，炸药⃩推进剂的内部损令及其寅力学特性⃩安全特性和点火行为的
影响规律受到了含能暵料学界的高度重视，为推动这一重要研究方向的学暦亚流，暤刊特设立“损令与点火”专朌⃪专朌
主要征集炸药⃩推进剂等含能暵料的损令观测与多寡度表征技暦⃩含损令的暤曍方程⃩准静态与动态损令演化规律⃩损令
与破坏的宏（细）观模式⃩损令寅起爆⃩爆炸⃩爆轰成长仅及非冲击起爆行为的影响等方向的原创性研究论文⃪暾稿请注
明“损令与点火”专朌⃪

⃯含能暵料⃰编辑部

www.energetic-materials.org.cn
Chinese Journal of Energetic Materials，Vol.27, No.2, 2019（131-136） 含能材料