20 犆犺犻狀犲狊犲犑狅狌狉狀犪犾狅犳犈狓狆犾狅狊犻狏犲狊牔犘狉狅狆犲犾犪狀狋狊 201410 HTPB PBX "< ( KLM,MNO,>, ( 0 J 4 ), 1 621900) : 1 / HTPB$ PBX ;? Y,> S?@ <' +, [/ Y? K 4567,,PBX Y ] <? &? 9 $_ 70 90d>, Y 2 ;HTPB b ;? > Y?*H K!:J ;HTPB;$ PBX; ; Y "#$%&:TJ55;TQ560 ' :A ' &:1007 7812(2014)05 0020 05 犞狅犾狌犿犲犛犺狉犻狀犽犪犵犲狅犳犎犜犘犅犜犺犲狉犿狅狊犲狋犻狀犵犘犅犡犻狀狋犺犲犃犵犻狀犵犘狉狅犮犲狊 HEChuan lan,lanlin gang,wen Mao ping,pang Hai yan (InstituteofChemicalMaterials,CAEP,MianyangSichuan621900,China) 犃犫狊狋狉犪犮狋 :ThevolumeshrinkageofHTPBthermosetingPBXduringtheagingprocesswasstudiedbyaccelerated agingmethod.thereasonforvolumeshrinkagewasanalyzedfrom postcuringreactionandrelativecrosslinking density.theresultsshowthatthevolumeshrinkagerateofpbxincreaseswithagingtemperaturerisingandtime extendingattheearlyagingstage,andisclosetoconstantvalueafter90daysagingprocessat70.postcuringre actionofhtpbduringtheagingprocesisthefundamentalreasonofvolumeshrinkageofpbx. 犓犲狔狑狅狉犱狊 :physicalchemistry;htpb;thermosetingpbx;acceleratedaging;volumeshrinkage 2 3 /,$ PBX CD?CP,` Q c R c?c R P ;, PBX R! 7? D, 7? ' R! < < < ',IJR! P b c R 4 L? : b, IJ?-"K b' $ PBX, N??@W ) CD EY M [ 0(HTPB) b HTPB?$ b' #? N [1 7], HTPBH? b K / ; E, ]>? ; HTPB # 1 (TDI)?>, R M "$\T >?@ *([, ]& P? Y,K? @ < $ ' ' PBX R!? < b'?' PBX? b' S? [8],,PBX ;? ' I JKL ' / S N > PBX Y IJ,W? Hc :; PBX > ', HTPB $ PBX ;? ' /, [ ',E $ PBX R!?$ NO 1 : ; 1.1 FE [\ HTPB,, U, 1.34mmol/g; (DOS), 1#, [ ; 1 (TDI),9, [ ()*+:2014 03 26;,-*+:2014 06 18./01:0 =] M (11372292); 0 J 4 3M (2013A0203006) : 3(1970-),, \, & P) b'
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22 & 3,70, HTPB b?@ < 6 ]? $ $_,36d> _, >? @ < ]?$ KE HTPB? E, HTPB TDI?>, HTPB b M TDI?, K?? @ <]? $ $ _,] ^ ;?,HTPB? C C G P \ $? T \ A M,? @,? @ E C S? &4 #3 ( X @6 < Fig.3 Changecurveofvolumeshrinkagerateand crosslinkdensityofhtpbalongwithagingtime #4 HTPBb TDI< X Fig.4 CrosslinkingreactionanddegradationreactionofHTPBandTDI &3 &4,.>?@ K HTPB b?@ <. &, 36d> HTPB??@ < # _,> M H, C C G P A? M?? @ S,? @, E C,-OH -NCO A?/M?, K HTPB?6&?@ < 36d> / &3,, Y S
, <=,>?@,::HTPBAB PBXCDE 23?@ < ]?$ $,36d>2 # _ ]^?$, Y ' N, S?@ < 7?, 7 HTPB b? Y S?@ <' + b S K E? @ <? ' / > ( <), 1? C C G PA? M?? @? @,HTPB >? @ < & Y ; >, Y,]^?$,,?@ <, ' [,HTPB b? Y C D ( OH NCO? > ; R?> >, 1 MH )? OH NCO M, S Y > Y K,> HTPB b Y?*H K 2.2.3 PBX PTXY HTPBC XY5 GB11 741 P 1 HTPB b HT PB$ PBX 70 Y ]?',45@&5 CDR HTPB 1? > RDX MH " ;? I J, HTPB $ PBX ; Y? 2KL, *,> <, K PBX Y N HTPB b, Y 9 2.3 ( L PBX 9<O c R P ;,PBX R!? $ <D ±0.1mm Y E1.17%? PBX R!,! _1.2%, c 45@61 61 ] b: L Table1 Comparisonwithexperimentalresultsofthedesign dimensionsandthesamplesize % /mm /mm c /mm 1 60.00 60.70 60.05 2 100.00 101.17 100.02 3 120.00 121.39 119.95 4 150.00 151.75 150.06 5 200.00 202.34 200.02 61,HTPB$ PBX ;? Y E1.17% N E +, _ 1.2%?+2!,' HTPB$ PBX-. $ >! E D HTPB$ PBX R!P c R, K ; 9,R! 9! B /,' PBXR!? Pb EbD 3 #5 HTPB 9 PBX ( Fig.5 VolumeshrinkagecurvesofpureHTPB elastomerandpbx &5,70,HTPB $ PBX HTPB b? Y ]?$ $_, # <>' ', 7 HTPB $ PBX? Y HT PB b? Y 2S HTPB b 70 43d >, Y _ ; PBX S! 70d Y # _, 90d > _, 7 PBX Y N HTPB b D, ' RDX? * + T,K > < HTPB b K,HTPB $ PBX ; Y? K HTPB b? (1)HTPB$ PBX ]^ <? &? $, Y $ _, Y 0,>Y 70 90d >,HTPB $ PBX? Y 2 # _ (2)HTPB$ PBX Y? K HTPB TDI R? E, ;?> RDX?*+T,HTPB $ PBX Y N HTPB b 9 (3) HTBP $ PBX? $ 1.2%, ;$ >, E D TU' : [1] 1, P,,*.[ / b? / [J]. U_,2010,30(3):258 262. LIXu chang,jiaojian,yaojun yan,etal.study
24 anaginglaw of HTPB polyuretlraneelastomer[j]. JournalofXi anuniversity,2010,30(3):258 262. [2], W_,,*.[ #? b'?gh [J].I ' ),1996,4 (3):109 115. WANGChun hua,peng Wang da,weng Wu jun, etal,chemicalagingmechanismsofhtpbsolidprop erlantsandthewaystoimproveaging resistance[j]. ChineseJournalofEnergetic Materials,1996,4(3): 109 115. [3], >c, E,*.[ %8? [J]. agh,1994(1):63 67. ZHANGJing chun,chenshao jie,jing Quan bin, etal,anaginginvestigationof HTPBsheetspecim ents[j].journalofsolid Rocket Technology,1994 (1):63 67. [4] 2, 3&, 4,*.0 # 52=, 3 [J]. a,2008,34(3): 35 38. ZHANGYong jun,zhangxing gao,zhang Wei, etal,reviewontheagingpropertyofsolidpropelant andbondingabroad[j].journalofrocketpropelant, 2008,34(3):35 38. [5],6 -, 7,*. $ 8 HTPB #?-b'[j].,2010,33(3):76 79. CHANG Xin long,laijian wei,wang Ruo yu,et al.hygroscopicpropertiesofhtpbpropelantinthe hydrothermalenvironment[j].chinesejournalofex plosivesandpropelants,2010,3:76 79. [6] 1 9,R,* :,*. [ ; # b'?ij[j],,2012,35(3):71 74. ZHANG Xu dong,dong Ke hai,qu Kai,et al, Efectofmoistureageingon mechanicalperformance ofhtpbpropelant[j].chinesejournalofexplosives andpropelants,2012,35(3):71 74. [7] 6-,,,*.HTPB #? b'[j],,2012,35(3):80 83. LAIJian wei,chang Xin long,long King,etal, LowtemperaturemechanicalpropertiesofHTPBpro pelant[j],chinesejournalofexplosivesandpropel lants,2012,35(3):80 83. [8] a,,&y?.0 PBX [J].,2008,29(5):99 102. YANG Xue hai,zhang Qi rong,gao Xiao min. OverseasstudydynamicofPBX[J].JournalofSichuan Ordnance,2008,29(5):99 102. [9] &Y?,D7.I RDX PBX 3[J].I '),2010,18(2):236 240. GAOXiao min,huang Ming,ReviewonagingofI RDXandI RDXbasedPBX[J].JournalofEnergetic Materials,2010,18(2):236 240. [10]SpyckereleC,FrecheA,Eck G.Ageingofreduced sensitivityrdx andcom positionsbasedonreduced sensitivityrdx,anupdate[c] ProcInsensitiv Mu nitionandenergeticmaterialtechnologysymposium. Bristo:[s.n.],2006. [11]SpyckereleC,Freche A.AgeingofI RDX(andof composi tionsbasedoni RDX([C] Proc35thInter national Annua Conference of ICT. Karlsruhe: ICT, 2004. ( I19J) [15]RiceB M,HareJJ,ByrdEFC.Accuratepredictions equationofstatefordetonationproducts[j].sciencein ofcrystaldensitiesusingquantum mechanicalmolecu China,2008,38(12):1129 1131. larvolumes[j].j Phy Chem A,2007,111(42): [18]>?$, @, [,*. O M I ' " J 10874 10879.? 3[J]. # & P ),2013,11 [16]QiuL,Xiao H M,GongX D,etal.Crystaldensity (1):10 16. predictionsfornitraminesbasedonquantumchemistry BIFu qiang,xu Cheng,GE Zhong xue,etal.re [J].JHarzard Mater,2007,141(1):280 288. search progressin dinitromethylazole basedenergetic [17],,,*.VLW J + [J]. compounds[j].chemicalpropelantsand Polymeric 0] (BR),2008,38(12):1129 1131. Materials,2013,11(1):10 16. WU Xiong,LONGXin ping,hebi,etal.thevlw