I-HPMC (oko kukuthi, i-hydroxypropyl methylcellulose) yinto ebalulekileyo ekuveliseni i-adhesives tile. Iphucula ukubambelela, ukusebenza kunye nokugcinwa kwamanzi kwi-adhesive tile. Kweli nqaku, siya kukunika isikhokelo esibanzi sokusebenzisa i-HPMC kwizicelo zokuncamathelisa iithayile.
1. Intshayelelo kwi-HPMC
I-HPMC yi-ether ye-cellulose engeyo-ionic efunyenwe ngokuguqula i-cellulose yendalo. Inkqubo yokuvelisa ibandakanya ukuphatha i-cellulose nge-alkali ukuyichitha, emva koko yongeza i-methyl chloride kunye ne-propylene oxide ukuyiguqula. Isiphumo singumgubo omhlophe okanye omhlophe onyibilika lula emanzini.
2. Iimpawu ze-HPMC
I-HPMC yipolymer eguquguqukayo kakhulu eneempawu ezininzi ezibalaseleyo. Ezinye zeempawu zayo ezibalulekileyo ziquka:
- Ukugcinwa kwamanzi okugqwesileyo
- ukunamathela okuphezulu
-Ubuchule obuphuculweyo
- Uphuculo lokunganyangeki
- Ukomelezwa kokumelana nokutyibilika
- ukuhamba kakuhle
- Iiyure zokuvula eziphuculweyo
3. Izinto eziluncedo ze-HPMC kwi-adhesive application ye-tile
Xa isetyenziswa kwimveliso yokuncamathelisa ithayile, i-HPMC ibonelela ngezinto ezininzi eziluncedo kubandakanya:
- Ukugcinwa kwamanzi okungcono ekuphuculeni ukusebenza kwe-tile yokunamathela kwiindawo ezimanzi
- Ukuphuculwa kweempawu zokuncamathelisa ukuqinisekisa ukuba iithayile zigcinwe ngokuqinileyo kwindawo
- Ukuphuculwa kwe-machinability kuqinisekisa ukulula kwesicelo kunye nokunciphisa umgudu ofunekayo ukufezekisa indawo epholileyo
- Ukunciphisa ukucutheka kunye nokuncipha, ukuphucula ubuhle bomgangatho wethayile
-Ukuphucula ukuhambelana kwezinto zokuncamathelisa iithayile, ukukhuthaza ukusetyenziswa ngokulinganayo kunye nokuchanekileyo
- Ukomelezwa kokumelana nokutyibilika kokhuseleko olwandisiweyo kwimigangatho yeethayile
4. Ukusetyenziswa kwe-HPMC kwi-Tile Adhesive Applications
I-HPMC isetyenziswa njenge-thickener, i-adhesive, i-arhente yokugcina amanzi kunye ne-rheology modifier kwizicelo zokuncamathelisa iithayile. Ngokuqhelekileyo yongezwa kwi-0.5% - 2.0% (w / w) yomxube owomileyo opheleleyo. Ngezantsi kukho iindawo eziphambili zokusebenzisa i-HPMC.
4.1 Ukugcinwa kwamanzi
I-adhesive ye-tile kufuneka ishiywe ingaguqukiyo ukwenzela ukuba i-installer inexesha elaneleyo lokulungisa i-tile. Ukusetyenziswa kwe-HPMC ibonelela ngogcino lwamanzi olugqwesileyo kwaye ithintela ukuncamathelisa ukuba kome ngokukhawuleza. Kwakhona kuthetha ukuba i-adhesive ayifuni ukuphinda ihlaziywe, nto leyo inokukhokelela ekusebenzeni okungahambelaniyo.
4.2 Ukuphucula ukuncamathelisa
Iimpawu zokuncamathelisa ze-HPMC zonyusa kakhulu amandla ebhondi yokuncamathelisa iithayile. Inceda ukuqinisekisa ukuba i-tile ihlala ngokukhuselekileyo kwindawo, nakwiindawo eziphezulu zezithuthi okanye iindawo ezimanzi.
4.3 Ukuba nobuchule
I-HPMC iphucula ukusebenza kwezinto zokuncamathelisa iithayile, ikwenza kube lula ukuyifaka kunye nokufezekisa indawo egudileyo. Yenza i-adhesive ibe lula ukukama, ukunciphisa umgudu ofunekayo ukutyhala i-adhesive kumphezulu.
4.4 Nciphisa ukushwabana nokuwohloka
Ngokuhamba kwexesha, i-adhesive ye-tile inokunciphisa okanye iyancipha, okukhokelela ekugqityweni okungahambi kakuhle kunye nokungakhuselekanga. Ukusetyenziswa kwe-HPMC kunciphisa kakhulu ukushwabana kunye nokudodobala, kuqinisekisa iyunifomu kunye nokugqitywa kobuhle.
4.5 Phucula ukuxhathisa ukutyibilika
Ukutyibilika kunye nokuwa yingozi enkulu kwimigangatho yeethayile, ngakumbi xa imanzi. Ukuxhathisa okuphuculweyo kokutyibilika kweHPMC kwenza ukuba izinto zokuncamathelisa iithayile ezisetyenzisiweyo zikhuseleke kwaye zehlise umngcipheko wokutyibilika kunye nokuwa.
5. Indlela yokusebenzisa i-HPMC kwi-Tile Adhesive Applications
I-HPMC yongezwa ngokwesiqhelo kwireyithi ye-0.5% - 2.0% (w/w) yomxube owomileyo uwonke. Kufuneka ixutywe kwangaphambili kunye nesamente yasePortland, isanti kunye nolunye umgubo owomileyo kunye nezinye izongezo ngaphambi kokuba ungeze amanzi. Ngezantsi ngamanyathelo abandakanyekayo ekusebenziseni i-HPMC kwizicelo zokuncamathelisa iithayile.
- Yongeza umgubo owomileyo kwisitya sokuxuba.
- Yongeza i-HPMC kumxube womgubo
- Gxuma umxube womgubo de i-HPMC isasazwe ngokulinganayo.
- Yongeza amanzi kancinci kumxube ngelixa uvuselela rhoqo ukuthintela amaqhuma.
- Qhubeka u-whisk de umxube ulungele kwaye ube nokuhambelana okufanayo.
6. Isiphelo
I-HPMC sisithako esiphambili ekuvelisweni kwezinto zokuncamathelisa iithayile, ezibonelela ngezibonelelo ezixabisekileyo ezifana nokuncamathela okuphuculweyo, ukuqhubekeka okuphuculweyo, kunye nokuncipha kokushwabana kunye nokuncipha. Ukusebenzisa i-HPMC kwizicelo zokuncamathelisa iithayile kufuna ukuxubana okufanelekileyo kunye nedosi yeziphumo ezizezona zilungileyo.
Ngoko ke, sincoma kakhulu ukusetyenziswa kwe-HPMC ekuveliseni i-adhesives tile ukuze ujabulele inzuzo yayo kunye nokuphucula umgangatho womgangatho ogqityiweyo.
Ixesha lokuposa: Jul-19-2023