亚微米TATB除酸方法比较

分别采用超声波震荡、加热下介质处理、稀碱处理等方法研究亚微米超细TATB夹杂酸的脱除.结果表明,超声波震荡法不利于亚微米TATB晶间酸的去除,有利于防止超细TATB粒子聚集;稀碱处理法能迅速降低细化料液的酸值,但仍不能有效去除晶体间夹杂酸,且处理后超细TATB样品灰分含量高;加热条件下有利于去除亚微米TATB晶间酸,却会造成亚微米TATB粒子团聚;以DMSO/水为介质,在加热条件下处理亚微米超细TATB样品,可控制pH值和粒度在许可范围.

COMPARISON OF METHODS IN THE ELIMINATION OF ACIDITY IN SUBMICRON TATB

Methods of eliminating acidity in submicron TATB have been studied applying consecutively the ultrasonic shaking, medium treatment upon heating, dilute alkali treatment etc. The results show that ultrasonic shaking is not favourable to the elimination of acids among submicron TATB's crystals, but it is favourable to preventing the congregation of ultra-fine TATB particles. In using dilute alkali treatment, atidity in the refined fluid could be rapidly reduced, but it could not effetively eliminate the acid among the submicron TATB's crystals and after disposing the ultra-fine TATB samples' ash remained high. The medium treatment method upon heating, favors in eliminating the acid among submicron TATB's crystals while it brought the submicron TATB particles' to augment in size. The results also show that when taking DMSO and water as the medium and upon heating, the ultra-fine TATB's pH value and size could be controlled within a permissive range.