I-Cellulose ethers zizithako eziguquguqukayo ezisetyenziswa kwiintlobo ngeentlobo zamashishini kubandakanya ukutya, amayeza kunye nokwakhiwa. Kwishishini lokwakha, i-cellulose ethers ziyizithako eziphambili kwizinto ezininzi zokwakha kunye neemveliso, kuquka i-gypsum spray plasters. I-Gypsum spray stucco lukhetho oludumileyo kudonga lwangaphakathi kunye nokugqitywa kwesilingi ngenxa yokumelana nomlilo okugqwesileyo, iipropati ze-acoustic kunye nokulula kwesicelo. Nangona kunjalo, umgangatho kunye nokusebenza kwe-gypsum spray plaster kuxhomekeke kakhulu kuhlobo kunye nesixa se-cellulose ether esetyenziswe ekuqulunqweni. Kweli nqaku, siza kuxubusha indima ebalulekileyo ye-cellulose ethers kwi-gypsum spray stucco.
Ngaphambi kokuba sihlolisise indima ye-cellulose ether kwi-gypsum spray plaster, masiqale siqonde ukuba yintoni i-cellulose ether. I-cellulose ethers iikhemikhali eziphuma kwi-cellulose, inxalenye ephambili yeendonga zeeseli zesityalo. Yipolymer enganyibilikiyo emanzini e-nonionic esetyenziswa ngokuqhelekileyo njenge-thickener, binder kunye ne-stabilizer. Kwishishini lokwakha, i-cellulose ethers isetyenziswa kakhulu njengeejenti zokugcina amanzi, izilawuli ze-viscosity kunye neziphuculi zokusebenza.
Ukubuyela kwi-stucco ye-gypsum spray, i-cellulose ethers idlala indima ebalulekileyo ekuphuculeni iipropati zezinto ngeendlela ezininzi. Okokuqala, i-cellulose ether isebenza njenge-arhente yokugcina amanzi, inceda ukuphucula ukusebenza kunye nokunciphisa ukuqhekeka kwe-plaster. Oku kungenxa yokuba iimolekyuli ze-cellulose ether ziyi-hydrophilic, okuthetha ukuba zifunxa ngokulula kwaye zigcine iimolekyuli zamanzi, ezithintela udaka ukuba lome ngokukhawuleza. Ngenxa yoko, i-stucco ihlala imanzi ixesha elide, ivumela i-plasterer ukuba ifake kwaye igqibe i-stucco ngakumbi kwaye ngokulinganayo.
I-cellulose ethers isebenza njenge-viscosity modifiers, inceda ukulawula ukuhamba kunye nokuhambelana kwegypsum. Oku kubaluleke ngakumbi nge-gypsum sprayed stucco, efuna ipateni ezinzileyo kunye neyokutshiza. Ukongezwa kwe-cellulose ethers kwi-gypsum formulations kunceda ukwandisa i-viscosity kunye nokuphucula ukuziphatha kwe-thixotropic ye-gypsum. Oku kuthetha ukuba istucco siya siba ngqindilili kwaye sibe ne-viscous ngakumbi xa singatshizwanga, kodwa siye sibemanzi kwaye kube lula ukusitshiza phantsi koxinzelelo. Ngenxa yoko, abatyabi banokufezekisa ipateni engaguqukiyo kunye neyokutshiza ukuze kube lula, ukugqitywa kobuhle.
I-cellulose ethers isebenza njengezixhasi zokusebenza, inceda ukuphucula ukuphatha kunye nokugqiba iimpawu ze-stucco. Oku kungenxa yokuba iimolekyuli ze-cellulose ether zinde kwaye ziguquguqukayo, ezivumela ukuba zihlangane kunye kwaye zenze inethiwekhi ye-dimensional emithathu kwi-matrix ye-gypsum. Esi sakhiwo sothungelwano sinegalelo kubumbano kunye namandla e-stucco, okwenza kube lula ukuqhekeka, ukugoba okanye ukuncipha. Ukongeza, ubukho be-cellulose ethers kwi-stucco kunceda ekunciphiseni umthamo womoya, ngaloo ndlela kwandisa ukuqina kwe-stucco kunye nokuxhathisa amanzi kunye nezinye izinto zokusingqongileyo.
I-cellulose ethers ikwanceda ekuphuculeni ukuxhathisa umlilo kwe-gypsum spray stucco. Oku kungenxa yokuba i-cellulose ether ayinakutsha kwaye inokumelana namaqondo obushushu aphezulu ngaphandle kokubola. Ukongezelela, ubukho be-cellulose ethers kwi-gypsum kunceda ukunciphisa ukutsha kunye nokuveliswa komsi we-gypsum, okwenza kube yinto ekhuselekileyo kunye neyokumelana nomlilo.
I-cellulose ethers idlala indima ebalulekileyo ekuphuculeni umgangatho kunye nokusebenza kwe-gypsum spray plaster. Ngokusebenza njengama-agent okugcina amanzi, i-viscosity modifiers, iziphuculi zokusebenza kunye ne-flame retardants, i-cellulose ethers inceda ukuphucula ukusebenza, ukutshiza, ukunyangeka, amandla kunye nokuqina kwe-stucco. Emva koko, oku kukhokelela kwizinto ezithandekayo, ezihlala ixesha elide kunye nokumelana nomlilo. Ngoko ke, ukusetyenziswa kwe-cellulose ethers kwi-gypsum spray plasters kunye nezinye izinto zokwakha kunconywa kakhulu ukwenzela ukuba iipropati zabo ezincedo zisetyenziswe ngokupheleleyo.
Ixesha lokuposa: Aug-08-2023