Ukutshiza irabha ene-asphalt engangeni manzi ngokukhawuleza kukugcoba okusekelwe emanzini. Ukuba i-diaphragm ayigcinwanga ngokupheleleyo emva kokutshiza, amanzi akayi kuphuma ngokupheleleyo, kwaye amaqamza omoya axineneyo aya kuvela lula ngexesha lokubhaka kubushushu obuphezulu, okubangela ukuba ifilimu engangeni manzi inciphe, kunye nokungangeni manzi kakuhle, ukungangeni manzi, kunye nokumelana nemozulu. Ngenxa yokuba iimeko zokugcinwa kwendawo yokwakha zihlala zingalawuleki, kubalulekile ukuphucula ukumelana nobushushu obuphezulu kwerabha ene-asphalt engangeni manzi ngokukhawuleza ngokwembono yokwenziwa.
I-cellulose ether enyibilikayo emanzini ikhethwe ukuphucula ukumelana nobushushu obuphezulu kwezinto zokungangenisi manzi zerabha ezitshizwayo ngokukhawuleza. Kwangaxeshanye, iziphumo zohlobo kunye nobungakanani be-cellulose ether kwiipropati zoomatshini, ukusebenza kokutshiza, ukumelana nobushushu kunye nokugcinwa kwe-asphalt yerabha etshizwayo ngokukhawuleza zifundwe.
Ukulungiselela isampuli
Nyibilikisa i-hydroxyethyl cellulose kwi-1/2 yamanzi axutyiweyo, uvuselele ide inyibilike ngokupheleleyo, uze wongeze i-emulsifier kunye ne-sodium hydroxide kumanzi asele e-1/2 amanzi axutyiweyo kwaye uvuselele ngokulinganayo ukulungiselela isisombululo sesepha, kwaye ekugqibeleni, xuba oku kungasentla. Izisombululo ezibini zixutywe ngokulinganayo ukuze kufunyanwe isisombululo samanzi se-hydroxyethyl cellulose, kwaye ixabiso layo le-pH lilawulwa phakathi kwe-11 kunye ne-13.
Xuba i-asphalt emulsified, i-neoprene latex, isisombululo samanzi se-hydroxyethyl cellulose, i-defoamer, njl. ngokwesilinganiselo esithile sokufumana izinto u-A.
Lungisa umxube othile wesisombululo samanzi seCa(NO3)2 njengesixhobo se-B.
Sebenzisa izixhobo ezikhethekileyo zokutshiza ngombane ukutshiza izinto u-A kunye nezinto u-B kwiphepha lokukhupha ngaxeshanye, ukuze ezo zinto zimbini zikwazi ukuchukunyiswa kwaye zifakwe ngokukhawuleza kwifilimu ngexesha lenkqubo yokudityaniswa kwe-atomization.
Iziphumo neengxoxo
I-Hydroxyethyl cellulose ene-viscosity ye-10 000 mPa·s kunye ne-50 000 mPa·s yakhethwa, kwaye indlela yokongeza emva koko yamkelwe ukuze kufundwe imiphumo ye-viscosity kunye nobungakanani bokongeza kwe-hydroxyethyl cellulose ekusebenzeni kokutshiza kwe-asphalt yerabha ekhawulezayo yokubeka ii-coatings ezingangeni manzi, iipropati zokwenza ifilimu, ukumelana nobushushu, iipropati zoomatshini kunye neepropati zokugcina. Ukuze kuthintelwe umonakalo kwibhalansi yenkqubo ebangelwa kukongezwa kwesisombululo se-hydroxyethyl cellulose, okubangela i-demulsification, kongezwa i-emulsifier kunye ne-pH regulator ngexesha lokulungiselela isisombululo se-hydroxyethyl cellulose.
Impembelelo yokuqina kweHydroxyethyl Cellulose (HEC) kwiPropati zokuFafaza kunye nokwenza ifilimu yeCoatings engangeni manzi
Okukhona i-viscosity ye-hydroxyethyl cellulose (HEC) inkulu, kokukhona impembelelo enkulu kwiipropati zokutshiza kunye nokwenza ifilimu ze-coating ezingangeni manzi. Xa ubungakanani bayo bokongeza buyi-1‰, i-HEC ene-viscosity ye-50 000 mPa·s yenza i-viscosity yenkqubo yokugquma engangeni manzi Xa inyuswa ngama-10 amaxesha, ukutshiza kuba nzima kakhulu, kwaye i-diaphragm iyancipha kakhulu, ngelixa i-HEC ene-viscosity ye-10 000 mPa·s ingenampembelelo ingako ekutshizeni, kwaye i-diaphragm iyancipha ngokwesiqhelo.
Isiphumo seHydroxyethyl Cellulose (HEC) kwi-Resistance Heat of Waterproof Coatings
I-asphalt yerabha efakwe ngokukhawuleza efakwe i-asphalt, efakwe i-spray, ifafazwe kwiphepha le-aluminiyam ukulungiselela isampuli yovavanyo lokumelana nobushushu, kwaye yanyangwa ngokweemeko zokunyangwa kwe-asphalt, efakwe i-asphalt, efakwe emanzini, echazwe kwi-GB/T 16777-2008 esemgangathweni kazwelonke. I-hydroxyethyl cellulose ene-viscosity ye-50 000 mPa·s inobunzima obukhulu beemolekyuli. Ukongeza ekulibaziseni ukufuma kwamanzi, ikwanayo nefuthe elithile lokuqinisa, okwenza kube nzima ukuba amanzi aphume ngaphakathi kwe-coating, ngoko ke iya kuvelisa amaqhuqhuva amakhulu. Ubunzima beemolekyuli ze-hydroxyethyl cellulose ene-viscosity ye-10 000 mPa·s buncinci, obunefuthe elincinci kumandla ezinto kwaye abuchaphazeli ukuwohloka kwamanzi, ngoko ke akukho kuveliswa kwamaqamza.
Isiphumo sobungakanani be-hydroxyethyl cellulose (HEC) eyongeziweyo
I-Hydroxyethyl cellulose (HEC) ene-viscosity ye-10 000 mPa·s ikhethwe njengenjongo yophando, kwaye iziphumo zokongezwa okwahlukeneyo kwe-HEC ekusebenzeni kokutshiza kunye nokumelana nobushushu kweengubo ezingangeni manzi ziphandwe. Ukuqwalasela ukusebenza kokutshiza, ukumelana nobushushu kunye neepropati zoomatshini zeengubo ezingangeni manzi ngokupheleleyo, kucingelwa ukuba isixa esifanelekileyo sokongeza i-hydroxyethyl cellulose yi-1‰.
I-neoprene latex kwi-sprayed quick-setting rubber asphalt waterproof coating kunye ne-emulsified asphalt zinomahluko omkhulu kwi-polarity kunye noxinano, nto leyo ekhokelela ekuqhekekeni kwezinto A ngexesha elifutshane ngexesha lokugcina. Ke ngoko, ngexesha lokwakha kwindawo kufuneka ivuselelwe ngokulinganayo ngaphambi kokuba itshizwe, kungenjalo iya kukhokelela kwiingozi ezisemgangathweni. I-Hydroxyethyl cellulose inokusombulula ngempumelelo ingxaki ye-demination ye-sprayed quick-setting rubber asphalt waterproof coatings. Emva kwenyanga enye yokugcina, akusekho delamination. I-viscosity yenkqubo ayitshintshi kakhulu, kwaye uzinzo lulungile.
ukugxila
1) Emva kokuba i-hydroxyethyl cellulose yongezwe kwi-asphalt yerabha etshiziweyo ngokukhawuleza, ukumelana nobushushu kwe-asphalt engangeni manzi kuphucuka kakhulu, kwaye ingxaki yamaqamza axineneyo kumphezulu we-asphalt iphucuka kakhulu.
2) Phantsi kwengcamango yokuba ayichaphazeli inkqubo yokutshiza, ukusebenza kwefilimu kunye neempawu zoomatshini zezinto, i-hydroxyethyl cellulose yafunyaniswa ukuba yi-hydroxyethyl cellulose ene-viscosity ye-10 000 mPa·s, kwaye isixa esongeziweyo yayiyi-1‰.
3) Ukongezwa kwe-hydroxyethyl cellulose kuphucula uzinzo lokugcina lwe-asphalt yerabha etshiziweyo ekhawulezayo, kwaye akukho kususwa kwe-delanitation eyenzekayo emva kokugcinwa inyanga enye.
Ixesha lokuthumela: Meyi-29-2023