Nitration of soft wood pulp board

作者：Wang Feijun^*; Shao Ziqiang; Feng Lei; Wang Jixun; Wang Wenjun; Li Yonghong

来源：Chinese Journal of Explosives & Propellants, 2010, 33(6): 69-72.

• Morphology
• Nitration
• Organic chemistry
• Reaction kinetics
• Soft wood pulp board
• Uniformity

The morphology and aggregated structure of soft pulp and the nitration of soft wood pulp board were investigated by SEM, XRD and micropolariscope. The results show that the soft wood pulp has lower crystallinity and looser morphology than refined cotton. Diffusion rate of different nitration reagent to soft wood pulp board is various. Compared with HNO3-H 2SO4-H2O mixture, the diffusion rate of HNO3-CH2Cl2 mixture is fast. The reaction of soft wood pulp board with HNO3-CH2Cl2 is a second order reaction. The homogeneity and nitrogen content of product increase with the increase of time,considering that 40 minutes is appropriate reaction time. The nitration reaction contains two steps and each step has its own rate constant. The first rate constant is about twoorder of magnitude larger than the second one.

• 出版日期2010
• 单位北京理工大学