I-adhesive ye-tile yi-adhesive esetyenziselwa ukunamathisela iileyile, kwaye ukusebenza kwayo kuchaphazela ngokuthe ngqo umgangatho wokwakha kunye nobomi benkonzo yeetayili. Ixesha elivulekileyo liyisalathisi esibalulekileyo sokusebenza kwe-tile yokunamathela, ebhekisela kwixesha lexesha apho i-adhesive tile inokugcina ukusebenza kwayo kokubambisana emva kokusetyenziswa kwinqanaba lesiseko ngaphambi kokumisa. I-Hydroxypropyl Methylcellulose (HPMC), njengento esetyenziswa ngokuqhelekileyo i-thickener kunye nokugcinwa kwamanzi, idlala indima ephambili ekulawuleni ixesha elivulekileyo lokunamathela kwi-tile.
Iimpawu eziphambili zeHPMC
I-HPMC yi-ether ye-cellulose engeyiyo i-ionic enokuqina okulungileyo, ukugcinwa kwamanzi, ukubunjwa kwefilimu kunye neempawu zokuthambisa. Isakhiwo sayo se-molecular iqukethe i-hydroxypropyl kunye ne-methyl substituents, eyenza ukuba ichithe emanzini ukwenza isisombululo se-viscoelastic, ngaloo ndlela ikhulise i-viscosity kunye nokuzinza kwenkqubo. Kwi-adhesive tile, i-HPMC ayikwazi nje ukuphucula umsebenzi wokwakha, kodwa iphinde yandise ixesha elivulekileyo ngokulungelelanisa izinga lokunyuka kwamanzi.
I-Mechanism yempembelelo ye-HPMC ngexesha elivulekileyo lokunamathela kwi-tile
Ukugcinwa kwamanzi: I-HPMC inokugcinwa kwamanzi okugqwesileyo kwaye inokulawula ngokufanelekileyo izinga lokunyuka kwamanzi. Ukongeza i-HPMC kwifomula ye-adhesive tile ingenza ifilimu encinci emva kwesicelo, iyancipha ukukhupha kwamanzi kwaye ngaloo ndlela yandise ixesha elivulekileyo. Oku kubaluleke kakhulu kulwakhiwo kwindawo eyomileyo, kuba ukuphuphuma kwamanzi ngokukhawuleza kuya kubangela ukuba i-adhesive tile ilahlekelwe iimpawu zayo zokubopha ngaphambi kwexesha.
Ukuqina kwesiphumo: I-HPMC inokwandisa kakhulu i-viscosity ye-adhesive tile, iyenze ibe ngcono kulwakhiwo kunye neempawu zokwaleka. I-viscosity ephezulu inokuqinisekisa ukuba i-adhesive ye-tile inokugubungela ngokulinganayo umaleko wesiseko emva kokufakwa kwesicelo, ukwenza i-adhesive layer, kunye nokunciphisa ingxaki yokunciphisa ixesha elivulekileyo ngenxa yokuncinci kakhulu kwe-adhesive layer.
Ipropati yokwenza ifilimu: Emva kokuba i-HPMC inyibilikiswe emanzini, inokwenza ifilimu enamandla athile. Le filimu ayikwazi ukugcina amanzi kuphela, kodwa iphinda yenza umaleko okhuselayo kumphezulu we-adhesive tile ukukhusela umoya wangaphandle kunye nokukhanya kwelanga ekusebenzeni ngokuthe ngqo kwi-adhesive layer kunye nokukhawulezisa ukuvela kwamanzi. Eyona nto ingcono ipropati yokwenza ifilimu, ixesha elide elivulekileyo.
Izinto ezichaphazela isiphumo se-HPMC
Isixa se-HPMC esongeziweyo: Isixa se-HPMC esongeziweyo yenye yezinto eziphambili ezichaphazela ixesha elivulekileyo lokunamathela kwi-tile. Ngokuqhelekileyo, inani elifanelekileyo le-HPMC linokwandisa kakhulu ixesha elivulekileyo, kodwa ixabiso eliphezulu kakhulu liya kubangela ukuba i-viscosity ye-adhesive tile ibe phezulu kakhulu, echaphazela izakhiwo zokwakha. Ke ngoko, xa kuyilwa ifomula, kuyimfuneko ukuba iyandise ngokweemfuno ezithile kunye nendawo yokwakha.
Ibanga le-HPMC le-viscosity: I-HPMC yamabakala ahlukeneyo e-viscosity nayo yenza ngokwahlukileyo kwi-adhesive tile. I-High-viscosity HPMC inokubonelela ngokugcinwa kwamanzi okunamandla kunye nemiphumo yokuqina, kodwa iya kwandisa i-rheology ye-colloid, enokuthi ingathandeki kwimisebenzi yokwakha. I-HPMC ye-viscosity ephantsi ichasene. Ngoko ke, kuyimfuneko ukukhetha ibakala elifanelekileyo le-viscosity ye-HPMC ngokwemeko yesicelo esithile sokunamathela kwi-tile.
Ubume bokwakha: Izinto ezifana nobushushu be-ambient kunye nokufuma ziya kuchaphazela ukusebenza kwe-HPMC kwi-adhesive tile. Kwiqondo eliphezulu lobushushu kunye nendawo eyomileyo, amanzi aphuphuma ngokukhawuleza, kwaye ixesha elivulekileyo linokuthi lifinyezwe nokuba i-HPMC yongezwa. Ngokuchasene noko, kwindawo enomswakama ophezulu, umphumo wokugcina amanzi we-HPMC ubaluleke kakhulu, kwaye ixesha elivulekileyo landiswa kakhulu.
Uphononongo lovavanyo
Umphumo we-HPMC kwixesha elivulekileyo le-adhesive tile inokulinganiswa ngokuvavanywa. La manyathelo okulinga alandelayo adla ngokuyilwa:
Ukulungiswa kwesampula: Lungiselela iisampulu zokuncamathelisa iithayile ngeemali ezahlukeneyo zokongeza zeHPMC kunye namanqaku e-viscosity.
Uvavanyo lwexesha lokuvula: Ngaphantsi kweemeko eziqhelekileyo zokusingqongileyo, sebenzisa i-adhesive tile kwi-standard base layer, uqhoboshele iileyili ngamaxesha aqhelekileyo, urekhode utshintsho ekusebenzeni kokubambisana, kwaye unqume ixesha elivulekileyo.
Uhlalutyo lwedatha: Thelekisa idatha yexesha elivulekileyo phantsi kweemeko ezahlukeneyo kwaye uhlalutye umphumo wokongezwa kwe-HPMC kunye nebakala le-viscosity ngexesha elivulekileyo.
Njengesongezo esibalulekileyo, i-HPMC inokwandisa kakhulu ixesha elivulekileyo lokunamathelisa i-tile ngokusebenzisa ukugcinwa kwamanzi, ukuqina kunye neempawu zokwenza ifilimu. Kwizicelo ezisebenzayo, ukhetho olufanelekileyo kunye nokongezwa kwe-HPMC kunokuphucula ngokufanelekileyo ukusebenza kolwakhiwo kunye nefuthe le-bonding ye-adhesive tile. Nangona kunjalo, isiphumo se-HPMC sikwachatshazelwa zizinto ezininzi, ekufuneka ziqwalaselwe ngokubanzi kuyilo lwefomula eyiyo kunye nenkqubo yokwakha ukuphumeza esona siphumo singcono.
Ixesha lokuposa: Jul-26-2024