IHydroxypropylmethylcellulose (HPMC) iphuma kwi cellulose esetyenziswa ngokubanzi njengesibophelelo kunye nokujiya kwiinkalo ezahlukeneyo ezibandakanya ukwakhiwa, amayeza kunye nokutya.I-HPMC yipolima enyibilikayo emanzini enokuthi ibonelele ngeenzuzo ezinkulu njengento yokuncamathelisa kushishino lweethayile.Kule nqaku, sixubusha indima ye-hydroxypropylmethylcellulose (HPMC) kwi-adhesive tile.
ukwazisa
I-adhesives ye-tile zizinto ezisekelwe kwi-polymer ezisetyenziselwa ukudibanisa iileyile kwii-substrates ezahlukeneyo ezifana nodaka lwesamente, ikhonkrithi, i-plasterboard kunye nezinye iindawo.I-adhesives ye-tile inokwahlulwa ibe yi-organic adhesives kunye ne-inorganic adhesives.Izinto zokuncamathelisa iithayile ze-Organic zihlala zisekelwe kwiipolymers zokwenziwa ezifana ne-epoxy, i-vinyl okanye i-acrylic, ngelixa i-inorganic adhesives isekelwe kwi-samente okanye kwizinto ezimbiwa.
I-HPMC isetyenziswa ngokubanzi njenge-additive in organic tile adhesives ngenxa yeempawu zayo ezizodwa ezifana nokugcinwa kwamanzi, i-thickener, kunye neempawu ze-rheological.Ezi zakhiwo zibalulekile ukuqinisekisa ukuba i-adhesives ye-tile ixutywe kakuhle, ikhuthaza ukusebenza kakuhle kunye nokunciphisa ixesha lokumisa.HPMC kwakhona kunceda ukwandisa amandla okuncamathelisa ithayile, iyenza ukuba yomelele ngakumbi.
ukugcinwa kwamanzi
Ukugcinwa kwamanzi kuyipropathi ephambili yokuqinisekisa ukuba i-adhesives ye-tile ayimisi ngokukhawuleza.I-HPMC yinto ebalaseleyo yokugcina amanzi, inokugcina ukuya kuthi ga kwi-80% yobunzima bayo emanzini.Le propati iqinisekisa ukuba i-adhesive ihlala isebenziseka ixesha elide, inika isilungisi se-tile ixesha elininzi lokubeka i-tile, nokuba yonke imini.Ukongeza, i-HPMC yongeza inkqubo yokunyanga, iqinisekisa ibhondi eyomeleleyo kunye nokuphucula ukuqina.
ujiya
I-viscosity ye-adhesives ye-tile ihambelana ngokuthe ngqo nobunzima bomxube, obuchaphazela ukukhululeka kwesicelo kunye namandla okudibanisa.I-HPMC sisityebi esisebenza kakuhle kakhulu esinokufikelela kwi-viscosities ephezulu nakwizigxina ezisezantsi.Ngaloo ndlela, abaphuhlisi be-adhesive tile banokusebenzisa i-HPMC ukuvelisa i-adhesives ye-tile kunye nokuhambelana okufanelekileyo kuyo nayiphi na imfuno yesicelo esithile.
Iimpawu zeRheological
Iimpawu ze-rheological ze-HPMC zinokuphucula ukusebenza kwee-adhesives tile.Ukutshintsha kwe-viscosity kunye neqondo loxinzelelo lokucheba olusetyenzisiweyo, ipropathi eyaziwa ngokuba yi-chear thinning.I-Shear thinning iphucula iimpawu zokuhamba kwe-adhesive tile, okwenza kube lula ukusabalalisa phezu kweendonga kunye nemigangatho ngomzamo omncinci.Ukongeza, i-HPMC ibonelela ngokulinganayo ukusasazwa komxube, ukuphepha ukuhlangana kunye nesicelo esingalinganiyo.
Ukuphucula amandla ebhondi
Ukusebenza kwe-adhesives ye-tile kuxhomekeke kakhulu kumandla ebhondi: i-adhesive kufuneka ibe yomelele ngokwaneleyo ukuze igcine i-tile ibambelele ngokuqinileyo kumphezulu kwaye imelane noxinzelelo olunokubangela ukuba i-tile idibanise okanye itshintshe.I-HPMC inegalelo kule propati ngokuphucula umgangatho wokunamathela kunye nokuphucula ukunamathela kwayo.Iintlaka ze-HPMC zivelisa izinto zokuncamathelisa iithayile eziphezulu zokusebenza ezinamazinga aphezulu okuqina kwebhondi kunye nokuqina okwandisiweyo.Ukusetyenziswa kwe-HPMC kunceda ukukhusela i-grout okanye i-tile yokuqhekeka kwaye igcina i-tile ingaguquki ixesha elide eligqityiweyo.
ukuququmbela
Ukuqukumbela, i-HPMC iphucula izinto zokuncamathelisa iithayile eziphilayo ngokubonelela ngeenzuzo ezininzi, kubandakanywa ukugcinwa kwamanzi, ukutyeba, iipropati zerheological kunye nokuphuculwa kokuqina kwebhondi.Ikhono le-HPMC lokuphucula ukusebenza, ukunciphisa ixesha lokumisa kunye nokuthintela ukuqhekeka kwetayile kwenze ukuba kube yinxalenye ebalulekileyo yoshishino lweethayile.Ukusetyenziswa kwe-HPMC ekuphuhliseni i-adhesives ye-tile kunokuphucula umgangatho wemveliso ngelixa ibonelela ngezisombululo eziqinileyo, eziqinileyo ezisebenzayo njengoko zikhangeleka.Zonke ezi zibonelelo zingqina ukuba i-HPMC yipolymer etshintsha umdlalo kwimarike yokuncamathelisa iithayile.
Ixesha lokuposa: Jun-21-2023