[1]宋育芳,肖乐勤,菅晓霞,等.低分子量聚丙烯酸钾的合成及其应用[J].爆破器材,2019,48(05):40-45.[doi:10.3969/j.issn.1001-8352.2019.05.008]
　SONG Yufang,XIAO Leqin,JIAN Xiaoxia,et al.Synthesis of Potassium Polyacrylate with Low Molecular Weight and Its Application[J].EXPLOSIVE MATERIALS,2019,48(05):40-45.[doi:10.3969/j.issn.1001-8352.2019.05.008]
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低分子量聚丙烯酸钾的合成及其应用()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
48
期数:
2019年05
页码:
40-45
栏目:
爆炸材料
出版日期:
2019-09-29

文章信息/Info

Title:
Synthesis of Potassium Polyacrylate with Low Molecular Weight and Its Application
文章编号:
5261
作者:
宋育芳; 肖乐勤; 菅晓霞; 周伟良
南京理工大学化工学院（江苏南京，210094）
Author(s):
SONG Yufang;  XIAO Leqin;  JIAN Xiaoxia;  ZHOU Weiliang
School of Chemical Engineering, Nanjing University of Science and Technology (Jiangsu Nanjing, 210094)
关键词:
消焰剂; 有机钾盐; 相容性; 燃烧残渣
Keywords:
flame suppressant;  organic potassium salt;  compatibility;  combustion remains
分类号:
TQ569
DOI:
10.3969/j.issn.1001-8352.2019.05.008
文献标志码:
A
摘要:
采用水溶液聚合法制备了低分子量聚丙烯酸钾（PAAK），并作为新型消焰剂加入单基发射药中。通过火焰原子吸收光谱法测试了PAAK中钾的含量；用乌氏黏度计测定了特性黏度；采用DSC法研究不同pH值的PAAK与硝化棉（NC）的相容性；利用充氮氧弹法对添加PAAK、硝酸钾KNO3、硫酸钾K2SO4的单基发射药的燃烧残渣进行了对比研究。结果表明，合成的PAAK中，钾的质量分数为15.21%，相对分子量在3 000左右，有利于和NC均匀混合，且在中性或微碱性（pH＝7.0~7.5）的情况与NC相容性良好。与传统的KNO3、K2SO4消焰剂相比，PAAK能够和NC均匀混合，制备均质透明的单基发射药；PAAK发射药的燃烧残渣最少，占发射药质量的0.18%。
Abstract:
Potassium polyacrylate (PAAK) with the low molecular weight was synthesized by aqueous solution polymerization, and it was used as an organic flame suppressant to prepare single-based propellant. Potassium content in PAAK was tested by a flame atomic absorption spectrometry, and intrinsic viscosity was measured by a Ubbelohde viscometer. Compatibility of PAAK with nitrocellulose (NC) was investigated by DSC method, and combustion residues of single-based propellant containing PAAK, KNO3 or K2SO4 were compared by nitrogen-bomb method. The results show that mass fraction of potassium in PAAK is 15.21%, and the molecular weight is about 3 000, which is beneficial to mix with NC uniformly. It has a good compatibility with NC in neutral or slightly alkaline (pH=7.0-7.5). Compared with single-based propellant containing KNO3 or K2SO4, the single-based propellant containing PAAK is homogeneous and transparent due to PAAK being evenly mixed NC. Combustion residue of PAAK propellant is the least, accounting for 0.18% of the mass of propellant.

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备注/Memo

备注/Memo:
收稿日期：2018-04-27
基金项目：陆装预研项目（301110104）
第一作者：宋育芳（1992－），女，博士研究生，主要从事含能材料的研究。E-mail: syfsong@yeah.net
通信作者：肖乐勤（1972－），女，副研究员，主要从事含能高分子材料的研究。E-mail:leqinxiao@163.com
更新日期/Last Update: 2019-09-29