改性聚乙烯醇缩甲醛胶的合成及应用_徐德林

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9219946Vol.9No.2JOURNALOFZHENGZHOUINSTITUTEOFLIGHTINDUSTRYJun.1994’“(450002),,,;4A,.;;;;TQ4330,.,.、、.,,,、.,,,.,,;,4A`.1l·l[`·,,:~~,{H:CHCHZH~CH:(:H—+HCHO~~HZ{HCHZ℃H~CHZ{H—OHOHOHO{HZ—O:,,;,,,::19940307,53,1994HHHHHH!H+__`l}}HOHOHOHH+、~`CHZH{HZCH~CHZ〔H~~~CHZesCH〔HZ{H-HZCHHlOH!OH\/H/100HH____U/UUn/\HOHH20=~~=~~~CHZH~CH:(:HCHZ〔H—;~=~~、H:{H{H:,H-~~H:.H}}}}}}0-C+HOHOH\H0H:OH+OHH+===~~~{H:〔Hes〔H:H{HZ~CH—}}}0-CHZ—0,,.:、~HZ{HesCH:CHCH:〔H}}}OH==={H:~CH〔H:(:H-H:CHOHOHOHol}}OHOHl。HCHOH20~==~~{HZHee.H:CH(:HZCH—;~、~、HH{HZeeCH-CHZ.{HHtOH1OH/\H/H1OHlOH/\H/!01O,,86.5%.5%,,.,..}}NHZCNHZHCHOHCHONHZCNHCH20H}}HOCHZNHCNHCH20H.,,,.1.2,,1.1.329`189,。%.500ml,80℃,1009,9095℃·80℃,69,30min.409,2:20mni,70~80℃1h.60℃,10%pH7~.850℃,0.59,lh·l/95%,175050)36%36%~38%)97%99%10.80.6O。2pHL4s[’〕1.4.1、、pH、、、.22pH(25℃)/%/%7~8.55Pa·51.206911·11.4.2d,,4.4004.500Pa·s,,·2〔7〕.,4A.4A,20℃,10.3%,.2.1,,.32.248925912.59,,12.59.48、189179,19.19943/%279A313,121352。32。3-、、,.44/Pa·/%h/3.65034.8%,,,,,2.3.22,,.lh,.、33.1,,,.3.2,,,.3.3,,.3.4,;、;;2:.().:,1981..:,197p,.,1987,(5):31~35.PvA.,1990,(1):52~53..:,1992..,1987,(2):41~42..,c。。,5420047,5402..,c。。,5426829,540228..:,1978THEPREPARATIONANDAPPLICATIONOFMODIFYINGPOLYVINYLFORMALADHESIVEFORBUILDINGENGINEERINGXuDelinYangYiemin(Cheical,`:ee,9Dea,te:tojZILI)ABSTRACTThesynthesisofthePolyvinylformaladhesiveforbuildingengineeringandthemodiifeationbyusingtheurea15rePortedthebadodoroftheProdueteanberemoredbythissynthesis.Attheend,zeolite4A15addedtoadhesive,50that,themoistureProofPaintforbuildings15PrePared·Keywords:Polyvinylformaladhesive;synthesis;modifieation;damPProof;Paint

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