火炸药学报2017，Vol.40Issue(2)：65-68,4.DOI:10.14077/j.issn.1007-7812.2017.02.012
微米级硝化纤维素的制备及性能研究
Study on the Preparation and Properties of Micron Nitrocellulose
摘要
Abstract
To make nitrification reaction perform in an approximate homogeneous condition,the microcrystalline cellulose with uniform crystallinity was prepared by hydrolysis treatment of refined cotton and dilute acid hydrolysis method.Then micron nitrocellulose was prepared via nitrification using mixed acid of nitric acid/sulphuric acid.The microtopography and structure of micron nitrocellulose were characterized by SEM and FTIR,the thermal property was analyzed by DSC,and the impact sensitivity and viscosity were tested.The results show that the optimum conditions for preparing micron nitrocellulose are determined as: the volume ratio of mixed acid of nitric acid/sulphuric acid as 1:3,nitrification time 30min,and nitrification temperature 35℃.The granularity of prepared micron nitrocellulose samples is uniform,and with characteristic drop height of 57.466cm,viscosity of 478mPa·s,and decomposition peak temperature of 211.20℃.Its nitrificaion is uniform,and the nitrogen content of micron nitrocellulose can reach 12.8%.关键词
硝化棉/微晶纤维素/安定性/硝化度/精制棉/硝化纤维素Key words
nitrocellulose/microcrystalline cellulose/stability/nitrification degree/refined cotton/nitrocellulose分类
军事科技引用本文复制引用
赵海平,刘天生,刘登程..微米级硝化纤维素的制备及性能研究[J].火炸药学报,2017,40(2):65-68,4.基金项目
国家自然科学基金(No.11572292) （No.11572292）
