固体火箭技术Issue(3)：339-344,6.
硝化羟烷基纤维素的制备及其力学性能
Synthesis and mechanical properties of nitrohydroxyethycellulose
杨斐霏 1邵自强 1张有德 1吕少一 1王飞俊1
作者信息
摘要
Abstract
In order to overcome the poor mechanical properties of NC at low temperature,hydroxyethylcellulose( HEC)was synthesized ,and then HEC was nitrified in mix-solvent HNO3/CH2Cl2 to obtain nitrohydroxyethylcellulose(NHEC). In the paper, we discussed the nitrogen content of NHEC synthesized in mix-solvent of various ratios, the glass transition temperature of NHEC tested by dynamic mechanical analysis and the tensile test of NHEC. The experimental results indicated that high nitrogen content can be obtained only at appropriate HNO, concentration ranges,deficit HNO3 leads to insufficient nitrification,surplus HNO3 induces gel. When compared with known NC, NHEC has good flexibility and lower glass transition temperature. With the degree of etherification increasing, the glass transition temperature reduced. Tensile test showed NHEC was tough and strong, but not brittle as NC when subjected to low temperature.关键词
硝化羟烷基纤维素/纤维素醚/硝化反应/力学分析Key words
nitrohydroxyethylcellulose/cellulose ether/nitration/mechanical analysis分类
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杨斐霏,邵自强,张有德,吕少一,王飞俊..硝化羟烷基纤维素的制备及其力学性能[J].固体火箭技术,2011,(3):339-344,6.
