细菌纤维素在炸药环境中的酶解研究

Enzymatic Hydrolysis of Bacterial Cellulose Under RDX Circumstance

采用酶解将细菌纤维素/黑索今中的细菌纤维素载体去除可提高炸药含量,为研究炸药对细菌纤维素酶解的影响,从黑索今炸药环境下酶含量、酶解时间及酶解温度等工艺条件对细菌纤维素酶解程度的影响进行了研究。结果表明:黑索今对细菌纤维素的酶解有一定的抑制作用。细菌纤维素的酶降解程度因处理的温度、酶量及时间等工艺条件的不同而表现出差异;在45℃、50℃和55℃条件下,细菌纤维素的酶解程度随酶量的增加和酶解时间的延长而不断提高;在炸药环境下,细菌纤维素酶解的适宜温度在50℃附近。

In order to improve the purity of RDX in nano-structured explosive by eliminating bacterial cellulose（BC） ,enzymatic hydrolysis was adopted. The effects of explosive on enzymatic hydrolysis of BC,such as enzyme concentration,hydrolysis time and temperature were investigated. The results show that RDX inhibits enzymatic hydrolysis of BC and hydrolysis degree of BC（HDBC） varies with enzyme concentration,hydrolysis temperature and time; HDBC increases with the increase of enzyme concentration and hydrolysis time at 45 ℃ ,50℃ and 55℃ ; the best temperature of enzymatic hydrolysis for BC is around 50℃.