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journalId=1319355259157577875, language=EN, title=Influence of the Polyvinyl Alcohol Aqueous Solution Concentration on the Process Quality and Combustion Performance of Nitroguanidine-based Gas Generator, columnId=null, journalTitle=Chinese Journal of Explosives & Propellants, columnName=null, runingTitle=null, highlight=null, articleAbstract=null, authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1319722888274494463, articleId=1319722881731380221, tenantId=1146029695717560320, journalId=1319355259157577875, language=CN, title=聚乙烯醇水溶液浓度对硝基胍基产气药工艺质量和燃烧性能的影响, columnId=null, journalTitle=火炸药学报, columnName=null, runingTitle=null, highlight=null, articleAbstract=基于硝基胍与聚乙烯醇溶液的相互作用模型(NQ-sPVA模型),采用分子动力学方法模拟了硝基胍晶面吸附不同浓度聚乙烯醇水溶液的过程,确定了聚乙烯醇水溶液的最佳工艺浓度,试制了产气药样品并测试了其燃烧性能; 依据硝基胍的理论结构与单晶衍射分析的偏差优选力场模型; 采用分子力场方法基于MAE模型计算出了聚乙烯醇水溶液与硝基胍晶面的界面能、综合界面能、硝基胍晶面的修正吸附能; 采用扫描电镜、密度测试仪分析了聚乙烯醇水溶液浓度对产气药工艺质量的影响; 采用密闭爆发器测试了产气药药片的燃烧性能。结果表明,COMPASS II力场最适用于本研究体系,计算结果偏差最小; 聚乙烯醇与水质量比1:3.75是聚乙烯醇水溶液的最佳工艺浓度,硝基胍晶体与该浓度下聚乙烯醇水溶液间的综合界面能最低为0.33kJ/(mol·Å2),后者更容易被吸附; 聚乙烯醇包覆后的硝基胍(2 2 0)、(0 4 0)、(1 1 -1)、(1 1 1)晶面的修正附着能分别为-448.99、-548.40、-553.33、-574.80kJ/mol,重结晶的硝基胍晶面生长速率偏差降低,有助于提升黏合剂包覆效果; 基于最佳聚乙烯醇溶液浓度制备的产气药颗粒表面缺陷少,压制成型的药片厚度、质量、密度一致性好,燃烧稳定性最佳。优化黏合剂工艺浓度能改善产气药工艺质量和燃烧稳定性,是一种提升工艺效果、调节燃烧性能的有效方法。, authors=null, authorsList=null, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, 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火炸药学报
2025
, 48
(1) :
聚乙烯醇水溶液浓度对硝基胍基产气药工艺质量和燃烧性能的影响
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杨月桢 , 徐磊 , 许赵伟 , 王晓锋 , 孟航 , 郝艳萍
作者信息
Influence of the Polyvinyl Alcohol Aqueous Solution Concentration on the Process Quality and Combustion Performance of Nitroguanidine-based Gas Generator
Affiliations
文章导航
基于硝基胍与聚乙烯醇溶液的相互作用模型(NQ-sPVA模型),采用分子动力学方法模拟了硝基胍晶面吸附不同浓度聚乙烯醇水溶液的过程,确定了聚乙烯醇水溶液的最佳工艺浓度,试制了产气药样品并测试了其燃烧性能; 依据硝基胍的理论结构与单晶衍射分析的偏差优选力场模型; 采用分子力场方法基于MAE模型计算出了聚乙烯醇水溶液与硝基胍晶面的界面能、综合界面能、硝基胍晶面的修正吸附能; 采用扫描电镜、密度测试仪分析了聚乙烯醇水溶液浓度对产气药工艺质量的影响; 采用密闭爆发器测试了产气药药片的燃烧性能。结果表明,COMPASS II力场最适用于本研究体系,计算结果偏差最小; 聚乙烯醇与水质量比1:3.75是聚乙烯醇水溶液的最佳工艺浓度,硝基胍晶体与该浓度下聚乙烯醇水溶液间的综合界面能最低为0.33kJ/(mol·Å2),后者更容易被吸附; 聚乙烯醇包覆后的硝基胍(2 2 0)、(0 4 0)、(1 1 -1)、(1 1 1)晶面的修正附着能分别为-448.99、-548.40、-553.33、-574.80kJ/mol,重结晶的硝基胍晶面生长速率偏差降低,有助于提升黏合剂包覆效果; 基于最佳聚乙烯醇溶液浓度制备的产气药颗粒表面缺陷少,压制成型的药片厚度、质量、密度一致性好,燃烧稳定性最佳。优化黏合剂工艺浓度能改善产气药工艺质量和燃烧稳定性,是一种提升工艺效果、调节燃烧性能的有效方法。
物理化学
/
产气药
/
硝基胍
/
聚乙烯醇
/
PVA
/
NQ
/
分子动力学
杨月桢, 徐磊, 许赵伟, 王晓锋, 孟航, 郝艳萍.
聚乙烯醇水溶液浓度对硝基胍基产气药工艺质量和燃烧性能的影响.
火炸药学报,
2025
, 48
(1)
.
.
Influence of the Polyvinyl Alcohol Aqueous Solution Concentration on the Process Quality and Combustion Performance of Nitroguanidine-based Gas Generator[J].
Chinese Journal of Explosives & Propellants ,
2025
, 48
(1)
.
https://castjournals.cast.org.cn/joweb/hzyxb/CN/1319722881731380221
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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