I-adhesives ye-tile ziyizithako eziphambili ekwakhiweni, ukubonelela nge-adhesion egcina iileyile kwiintlobo ezahlukeneyo ze-substrates. Nangona kunjalo, imiceli mngeni efana nokuvezwa kwe-thermal kunye nemijikelo yokunyibilika komkhenkce inokubeka esichengeni ukuthembeka kwezi zinto zincamathelayo, nto leyo ekhokelela ekungaphumeleliyo nakwimiba yesakhiwo. I-Hydroxypropyl methylcellulose (HPMC) iye yavela njengesongezo esithembisayo sokuphucula ukumelana nobushushu kunye nokuzinza kwe-freeze-thaw of adhesives tile. Eli nqaku liphonononga iindlela ezisemva kwezi zixhasi, impembelelo ye-HPMC ekusebenzeni kokuncamathelisa, kunye neengqwalaselo ezisebenzayo zokuyibandakanya kwimiqulu.
Izinto zokuncamathelisa iithayile zidlala indima ebalulekileyo kulwakhiwo lwangoku njengendawo encamathelayo iithayile kwii-substrates ezifana nekhonkrithi, iinkuni okanye iplasterboard. Ezi zibophelelo kufuneka zikwazi ukumelana neemeko ezahlukeneyo zokusingqongileyo, kubandakanywa utshintsho lweqondo lokushisa kunye nokubonakaliswa komswakama, ukuqinisekisa ukunyaniseka kwexesha elide le-tile surface. Nangona kunjalo, izincamathelisi zemveli zinokuzabalaza ukugcina ukusebenza kwazo phantsi kobushushu obugqithisileyo okanye imijikelo ephindaphindiweyo yokunyibilikisa, ekhokelela ekungaphumeleli kwebhondi kunye nokutsalwa kweethayile. Ukujongana nale mingeni, abaphandi kunye nabavelisi bahlola ukusetyenziswa kwezongezo ezifana ne-hydroxypropyl methylcellulose (HPMC) ukunyusa ukuxhathisa ukushisa kunye nokuzinza kwe-freeze-thaw of adhesives tile.
Isishwankathelo sokuncamathelisa kwethayile
Ngaphambi kokuba uhlolisise indima ye-HPMC, kuyimfuneko ukuqonda ukubunjwa kunye nemisebenzi ye-adhesive tile. Ezi zibophelelo zidla ngokuba nomxube wesamente yasePortland, iaggregate ecolekileyo, iipolymers kunye nezongezo. Isamente yasePortland isebenza njengesibophelelo sokuqala, ngelixa iipolymers zonyusa ukuguquguquka, ukunamathela, kunye nokumelana namanzi. Ukongezwa kwezongezo kunokuguqula iimpawu ezithile ezifana nexesha lokunyanga, ixesha elivulekileyo kunye ne-rheology. Ukusebenza kwe-adhesives ye-tile ivandlakanywa ngokusekelwe kwizinto ezinjengokuqina kwebhondi, amandla okucheba, ukuguquguquka kunye nokuchasana noxinzelelo lwendalo.
Imingeni yeNtsebenzo yeTile yokuncamathelisa
Ngaphandle kokuhambela phambili kwetekhnoloji yokuncamathelisa, ukufakwa kweethayile kusajongene nemingeni ethile enokubeka esichengeni ukuqina kwayo. Imiba emibini ebalulekileyo kukuvezwa kobushushu kunye nemijikelo yokunyibilika komkhenkce. Amaqondo obushushu aphezulu akhawulezisa inkqubo yokuncamathelisa, nto leyo ebangela ukoma kwangaphambi kwexesha kunye nokunciphisa amandla ebhondi. Ngakolunye uhlangothi, ukuvezwa kwamaqondo okushisa okukhenkceza kunye nokunyibilika kunokubangela ukuba ukufuma kungene kwaye kwandise ngaphakathi kwendawo yokunamathela, okubangela ukuba i-tile idibanise kwaye iqhekeke. Le mingeni ifuna uphuhliso lwezincamathelisi ezinokumelana okuphezulu nobushushu kunye nemijikelo yokunyibilika komkhenkce.
Indima ye-HPMC ekuphuculeni iimpawu zokuncamathelisa
I-HPMC iphuma kwi-cellulose kwaye inomdla kwiipropati zayo ezinemisebenzi emininzi kwizinto zokwakha. Xa ifakwe kwi-adhesives yethayile, i-HPMC isebenza njenge-rheology modifier, i-thickener, i-agent yokugcina amanzi, kunye ne-adhesive. Ulwakhiwo lwemolekyuli ye-HPMC yenza ukuba yenze iibhondi ze-hydrogen kunye neemolekyuli zamanzi, zenza ijeli ye-viscous ephucula ukuqhubekeka kunye nokwandisa ixesha elivulekileyo. Ukongezelela, i-HPMC iphucula ukubambelela ngokwenza ifilimu ekhuselayo kwi-tile ye-ceramic, ukunciphisa ukunyuswa kwamanzi, kunye nokuphucula intsebenziswano phakathi kwe-adhesive kunye ne-substrate.
Indlela yokuphucula ukumelana nobushushu
Ukongezwa kwe-HPMC kwi-adhesives yethayile kuphucula ukuxhathisa ubushushu ngokusebenzisa iindlela ezininzi. Okokuqala, i-HPMC isebenza njenge-insulator ye-thermal, inciphisa ukuhanjiswa kobushushu ngokusebenzisa i-adhesive layer kunye nokunciphisa ukuguquguquka kweqondo lokushisa. Okwesibini, i-HPMC iphucula inkqubo ye-hydration ye-cement particles kwaye ikhuthaza ukubunjwa kwe-hydrated calcium silicate (CSH) gel, ngaloo ndlela iphucula iimpawu ze-mechanical ze-adhesive kumaqondo aphezulu okushisa. Ukongeza, i-HPMC inciphisa umngcipheko wokuqhekeka kwe-thermal ngokunciphisa i-shrinkage kunye noxinzelelo lwangaphakathi ngaphakathi kwe-matrix enamathelayo.
Iinkqubo ezisemva kozinzo oluphuculweyo lokunyibilika komkhenkce
I-HPMC idlala indima ebalulekileyo ekuphuculeni uzinzo lokunyibilikisa lokunyibilika kwezinto zokuncamathelisa iithayile ngokunciphisa iziphumo ezibi zokungenwa kokufuma kunye nokwandiswa. Ngaphantsi kweemeko zokukhenkceza, i-HPMC yenza umqobo okhuselayo othintela ukungena kwamanzi kwi-adhesive layer. Ukongeza, indalo ye-hydrophilic ye-HPMC iyenza ikwazi ukugcina ukufuma kwi-matrix yokuncamathelisa. ix, thintela ukunyibilika kunye nokugcina ukuguquguquka ngexesha lemijikelo yokunyibilika komkhenkce. Ukongezelela, i-HPMC isebenza njenge-pore yangaphambili, idala inethiwekhi ye-micropores ehambelana nokwandiswa kwamanzi ngaphandle kokubangela ukuba i-tile idilize okanye iqhekeke.
Impembelelo ye-HPMC kwiipropati ezincamathelayo
Ukongezwa kwe-HPMC kuchaphazela iipropathi ezahlukeneyo zokuncamathelisa iithayile, kubandakanya i-viscosity, ukusebenza, amandla ebhondi kunye nokuqina. Uxinzelelo oluphezulu lwe-HPMC lukhokelela ekwandeni kwe-viscosity kunye nokuphucula ukuxhathisa kwe-sag, evumela usetyenziso oluthe nkqo kunye nephezulu ngaphandle kokuwa. Nangona kunjalo, umxholo ogqithisileyo we-HPMC unokukhokelela ekunciphiseni amandla ebhondi kunye nobude ngexesha lekhefu, ngoko ke imixube kufuneka ilungiswe ngononophelo. Ukongeza, ukhetho lwebakala le-HPMC kunye nobunzima bemolekyuli buchaphazela ukusebenza kwe-adhesive phantsi kweemeko ezahlukeneyo zokusingqongileyo.
Iingqwalasela ezisebenzayo zokudityaniswa kwe-HPMC
Xa udibanisa i-HPMC kwi-adhesives ye-tile, izinto ezininzi eziphathekayo kufuneka ziqwalaselwe ukwandisa ukusebenza kunye nokuqinisekisa ukuhambelana nokuqulunqwa okukhoyo. Ukukhethwa kwamabanga e-HPMC kufuneka kuthathelwe ingqalelo izinto ezifana ne-viscosity, ukugcinwa kwamanzi, kunye nokuhambelana nezinye izongezo. Ukusasazwa okufanelekileyo kwamasuntswana e-HPMC kubalulekile ukufezekisa ukufana kunye nokuthintela i-agglomeration kwi-matrix enamathelayo. Ukongeza, iimeko zokunyanga, ukulungiswa kwe-substrate, kunye neendlela zokusetyenziswa kufuneka zilungelelaniswe ukuze kwandiswe iingenelo kunye nokunciphisa ukungalungi okunokwenzeka kwe-HPMC.
IHydroxypropyl methylcellulose (HPMC) inamandla amakhulu okomeleza ukuxhathisa ubushushu kunye nokuzinza komkhenkce kokuncamatheliswa kweethayile zethayile. Iipropati ezininzi ze-HPMC njenge-rheology modifier, i-arhente yokugcina amanzi kunye ne-adhesive iphucula ukuqhubekeka kokuncamathelisa, ukunamathela kunye nokuqina kwiimeko ezinzima zokusingqongileyo. Ngokuqonda iindlela ezisemva kokusebenza okuphuculweyo kwe-HPMC kunye nokujongana neengqwalaselo ezisebenzayo zokubandakanywa kwayo, abaphandi kunye nabavelisi banokuphuhlisa i-adhesives eqinile, ethembekileyo yeethayile eziqinisekisa ukuthembeka kwexesha elide lemigangatho yeethayile kwiinkqubo ezahlukeneyo zokwakha.
Ixesha lokuposa: Feb-28-2024