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ID:32047935
大小:1.35 MB
页数:5页
时间:2019-01-31
《beba对丁羟推进剂界面粘接作用的研究》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、固体火箭技术第39卷第5期JournalofSolidRocketTechnologyVol.39No.52016BEBA对丁羟推进剂界面粘接作用的研究①张习龙,刘苗娥,王祝愿,邓剑如(湖南大学化学化工学院,长沙410082)摘要:合成了聚醚类和聚酯类互联单体,并用互联单体合成了硼酸酯键合剂(BEBA)。采用反相气相色谱法,测算了AP、RDX、丁羟聚氨酯(HTPB⁃PU)基体和BEBA间的界面酸碱作用焓。结果显示,5种BEBA与AP、RDX的界面作用焓,均远大于HTPB⁃PU基体与AP、RDX、BEBA的界面作用焓,表明5种BEBA均优先吸附
2、在AP、RDX上,以聚酯链段合成的BEBA⁃4更有利于吸附,并采用EDS证实了BEBA⁃4吸附在AP、RDX表面。通过接触角法,测算了AP、RDX吸附BEBA⁃4后的AP、RDX与HTPB⁃PU基体间的界面张力和界面粘附功。结果表明,吸附BEBA⁃4的AP、RDX与HTPB⁃PU基体间的界面张力降低,界面粘附功增加,界面粘接强度增强。BEBA用于推进剂力学性能测试和SEM观察的结果与界面粘接作用结果基本吻合,即以聚己二酸丁二醇酯为互联链段合成的BEBA⁃4对推进剂力学性能改善的效果最为显著。关键词:丁羟推进剂;硼酸酯键合剂;互联链段;反相气相
3、色谱;接触角中图分类号:V512文献标识码:A文章编号:1006⁃2793(2016)05⁃0667⁃05DOI:10.7673/j.issn.1006⁃2793.2016.05.013StudyoninterfacialadhesioninteractionofBEBAusedforHTPBpropellantZHANGXi⁃long,LIUMiao⁃e,WANGZhu⁃yuan,DENGJian⁃ru(CollegeofChemistryandChemicalEngineering,HunanUniversity,Changsha4100
4、82,China)Abstract:Thepolyetherandpolyesterinterconnectionmonomersweresynthesized,andtheborateesterbondingagents(BE⁃BAs)weresynthesizedusingaboveinterconnectionmonomers.TheinterfaceinteractionenthalpiesofAP,RDX,HTPBpolyurethane(HTPB⁃PU)matrixandBEBAswerecalculatedusinginvers
5、egaschromatography.TheresultsindicatethattheinterfaceinteractionenthalpiesofBEBAsandAPorRDXaremuchhigherthanthoseofHTPB⁃PUandAPorRDXorBEBAs,whichindicatesthattheBEBAsarepreferentiallyadsorbedonAPorRDX,andthepolyesterchainsegmentofBEBA⁃4ismoreconducivetotheabsorptionamongthe
6、m.TheelectronspectroscopyresultsdirectlyprovethatBEBA⁃4isadsorbedonAPorRDXsurface.Theinterfacialtensionandinterfacialadhesionbetweenthefillers,theHTPB⁃PUmatrixandthefillerscoatedBEBA⁃4aremeasuredusingthecontactan⁃glemethod.Theresultsindicatethattheinterfacialtensionbetweent
7、hefillerscoatedBEBA⁃4andtheHTPB⁃PUmatrixisde⁃creased,theinterfacialadhesionisincreasedandtheinterfacialbondstrengthisenhanced.Theresultsfromthemechanicalproper⁃tiestestingandSEMobservationsaregreatlyinaccordancewithconclusionsfromtheinterfacialadhesioninteractions.Theresult
8、showsthatBEBA⁃4preparedfrompoly(butyleneadipate)cansignificantlyimprovethemechanic
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