(1) Isishwankathelo se-HPMC
I-Hydroxypropyl Methyl Cellulose (HPMC) yi-ether ye-cellulose engekho ionic esetyenziswa ngokuqhelekileyo kwizinto zokwakha.I-HPMC ine-solubility egqwesileyo yamanzi, ukugcinwa kwamanzi, iipropati zokwenza ifilimu kunye nokuzinza, kwaye isetyenziswa ngokubanzi kwizinto zokwakha ezifana ne-adhesives tile, i-putty powder, ibhodi yegypsum kunye nodaka olomileyo.Kwizinto zokuncamathelisa iithayile ezisekwe kwisamente, i-HPMC idlala indima ebalulekileyo, kwaye indima yayo ibonakaliswa ikakhulu ekuphuculeni ukusebenza kolwakhiwo, ukwandisa amandla okubopha, ukwandisa ixesha elivulekileyo, kunye nokwandisa iipropathi ezichasene nokutyibilika.
(2) Indima ye-HPMC kwi-adhesive tile esekelwe kwi-samente
1. Ukuphucula ukusebenza kolwakhiwo
I-HPMC inokuphucula ngokufanelekileyo ukusebenza kolwakhiwo lwezincamathelisi zethayile esekwe kwisamente, ebonakaliswa ngokukodwa kule miba ilandelayo:
Ukwandisa i-rheology: I-HPMC ikwandisa i-viscosity ye-adhesive ngokusebenzisa isiphumo sayo sokuqina, isenza kube lula ukusasazeka kunye nokulungelelanisa, ngaloo ndlela iphucula ukwakhiwa lula.I-rheology efanelekileyo iqinisekisa ukuba i-adhesive inokwenza i-uniform bonding layer eludongeni okanye emgangathweni, obaluleke kakhulu ekubekweni kweetayile ezinkulu.
Phucula ugcino lwamanzi: I-HPMC inomthamo ogqwesileyo wogcino lwamanzi kwaye inokutshixa amanzi kwindawo yokuncamathelisa ukunqanda ukuba amanzi angabi ngumphunga ngokukhawuleza.Oku akuncedi kuphela i-samente ukuba i-hydrated ngokupheleleyo, kodwa iphinda ikhulise ixesha elivulekileyo lokubambelela, livumela abasebenzi bokwakha ixesha elide lokulungelelanisa nokulungisa indawo yeetayile.
Phucula i-anti-slippage: Xa ubeka iithayile, ngakumbi iithayile ezinkulu kwiindonga ezithe nkqo, ingxaki yokutyibilika kwethayile ihlala ikhathaza abasebenzi bokwakha.I-HPMC yonyusa i-viscosity ye-adhesive, ivumela iithayile ukuba zifumane ngokukhawuleza amandla athile okudibanisa okokuqala emva kofakelo, ngaloo ndlela kuthintela ngokufanelekileyo ukutyibilika.
2. Ukuphucula amandla ebhondi
I-HPMC inokuphucula ngokubonakalayo amandla ebhondi yokuncamathelisa kwithayile esekwe kwisamente kuba inokudlala indima kule miba ilandelayo:
Ukukhuthaza i-cement hydration: Ipropathi yokugcina amanzi ye-HPMC inokugcina ukufuma kwi-adhesive kwaye ikhuthaze i-hydration epheleleyo yesamente.Isakhiwo samatye e-samente esakhiwe yi-hydration epheleleyo ye-cement i-dense, ngaloo ndlela iphucula amandla okubambisana kwe-adhesive.
Impembelelo yojongano oluphuculweyo: I-HPMC inokwenza ifilimu yepolymer encinci phakathi kwe-adhesive kunye nethayile.Le filimu inokubambelela kakuhle kunye nokuguquguquka, okunokuphucula ngokufanelekileyo amandla okudibanisa phakathi kwe-adhesive kunye nesiseko se-tile kunye nokuphucula amandla okudibanisa ngokubanzi.
3. Ixesha lokuvula elongeziweyo
Ixesha elivulekileyo libhekisela kwixesha elivela ekusebenziseni i-adhesive ekubekweni kwe-tile.Ukugcinwa kwamanzi kunye neepropati zokulawula i-rheological ye-HPMC inokwandisa ixesha elivulekileyo lokunamathelisa i-tayile esekelwe kwi-samente, ebonakaliswa ngokukodwa kule miba ilandelayo:
Ukulibaziseka ukuvela kwamanzi: Ifilimu ye-polymer eyenziwe yi-HPMC inokunciphisa ukuphuma kwamanzi kwi-adhesive, ukwenzela ukuba i-adhesive ikwazi ukugcina ukusebenza ixesha elide.
Gcina umanzi: Ngenxa ye-hygroscopicity ye-HPMC, i-adhesive inokuhlala imanzi ixesha elide, ngaloo ndlela yandisa ifestile yokusebenza kunye nokwandisa ukulungiswa kunye nokubeka ixesha labasebenzi bokwakha.
4. Ukunyuka kokusebenza okuchasene nokutyibilika
Ukusebenza kwe-Anti-slip kubhekiselele ekuchaseni iithayile ekufudukeni ngenxa yobunzima bazo okanye amandla angaphandle xa zibekwe nje.Ukuqina kunye neziphumo zegelling ze-HPMC zinokuphucula iipropathi ezichasene nokutyibilika kwezinto zokuncamathelisa iithayile ezisekwe kwisamente kule miba ilandelayo:
Ukuphucula ukubambelela kokuqala: I-HPMC iphucula ukubambelela kokuqala kwe-adhesive, ivumela iileyili ukuba zifumane ngokukhawuleza ukuma okuzinzile emva kokubeka kunye nokunciphisa ukufuduka.
Ukwenza i-elastic structure: Isakhiwo sothungelwano esakhiwe yi-HPMC kwi-adhesive inokubonelela nge-elastic recovery force ethile, edlala indima ephambili ekuchaseni i-tile slippage.
(3) Isixa se-HPMC esisetyenziswe kwi-samente-based adhesives tile
Isixa se-HPMC esongeziweyo sidla ngokumiselwa ngokweemfuno ezahlukeneyo zesicelo, ngokubanzi phakathi kwe-0.1% kunye ne-0.5%.Kwizicelo zangempela, kuyimfuneko ukulungelelanisa isixa ngokwefomula ethile ye-adhesive, iimeko zokwakha, kunye neenkcukacha zeetayile ukufezekisa umphumo ongcono.Ukongeza i-HPMC encinci kakhulu kuya kubangela ukubambana okungalunganga, ngelixa ukongeza kakhulu kunokunyusa iindleko kwaye kuchaphazele ukusebenza kolwakhiwo.
(4) Ukukhethwa kunye nokuhambelana kwe-HPMC
Ukukhetha ukucaciswa kwe-HPMC efanelekileyo kwizinto zokuncamathelisa iithayile ezisekwe kwisamente kubalulekile ekusebenzeni kwemveliso.Iiparameters ezifana ne-HPMC viscosity, i-substitution degree kunye nobukhulu be-particle iya kuchaphazela umphumo wayo wokugqibela.Ngokubanzi, xa iphezulu i-viscosity ye-HPMC, ngcono ukugcinwa kwamanzi kunye nesiphumo sokuqina, kodwa ixesha lokuchithwa liya kunyuka ngokulinganayo.Ngoko ke, kuyimfuneko ukukhetha iimpawu ezifanelekileyo ngokweemfuno zokwenyani.
I-HPMC kufuneka ihambelane ngokufanelekileyo nezinye izongezo ukuze kuphunyezwe ukusebenza kakuhle.Ngokomzekelo, ukudibanisa kunye nezongezo ezifana ne-ethylene glycol, i-propylene glycol kunye nezinye i-cellulose ethers zinokuphucula ngakumbi ukusebenza kokwakhiwa kunye nokuqina kwe-adhesive.
(5) Umkhwa wokuphuhliswa kwe-HPMC kwii-adhesive tile ezisekelwe kwi-samente
Ngokuqhubela phambili okuqhubekayo kobugcisa bezinto zokwakha, iimfuno zokusebenza kwee-adhesives ze-cement-based adhesives nazo ziba phezulu nangaphezulu.Njengolunye lwezongezo eziphambili, indlela yophuhliso ye-HPMC ibonakaliswa ikakhulu kule miba ilandelayo:
Uphando kunye nophuhliso lwe-HPMC ehambelana nokusingqongileyo: Ngokwandiswa kolwazi lokusingqongileyo, uphando kunye nophuhliso lwekhompawundi eziguquguqukayo eziphantsi (VOC) kunye ne-HPMC eyonakalisayo ehambelana nokusingqongileyo sele iyinto eqhelekileyo.
Ukuphuhliswa kwe-HPMC esebenzayo: Ukuze kuhlangatyezwane neemfuno ezahlukeneyo zokwakha, iimveliso ze-HPMC ezinemisebenzi ethile (efana ne-anti-mildew, i-antibacterial, ukugcinwa kombala, njl.) ziphuhliswa ukuphucula ukusebenza okubanzi kwee-adhesives tile.
Isicelo HPMC ezikrelekrele: Intelligent HPMC unako ukulungelelanisa ngokuzenzekelayo ukusebenza kwayo ngokweemeko zokusingqongileyo (ezifana lobushushu, ukufuma, njalo njalo), ukuze i-samente-based adhesives ithayile akwazi ukugcina ukusebenza kakuhle phantsi kweemeko ezahlukeneyo zokwakha.
Ukusetyenziswa kwe-HPMC kwi-adhesive tile esekelwe kwi-samente kuphucula kakhulu ukusebenza kwe-adhesives, kubandakanywa nokuphucula ukusebenza kokwakhiwa, ukwandisa amandla okubambisana, ukwandisa ixesha elivulekileyo kunye nokwandisa iipropati ezichasene ne-slip.Ukugcinwa kwayo kwamanzi, ukutyeba kunye nesiphumo esihle sojongano kwenza ukuba izinto zokuncamathelisa iithayile ezisekwe kwisamente zifikelele kwiziphumo ezigqwesileyo kulwakhiwo lokwenyani.Ngokuqhubela phambili okuqhubekayo kobuchwepheshe, iindawo zesicelo kunye nemisebenzi ye-HPMC nayo ikhula rhoqo, inikezela ngamathemba abanzi okuphuhliswa kwe-samente-based adhesives tile.
Ixesha lokuposa: Jun-28-2024