I-HPMC (i-hydroxypropyl methylcellulose) yongezwa kweekhemikhali eziqhelekileyo kwishishini lokwakha kwaye isetyenziswa ngokubanzi kumdaka kunye nezinye izinto ezisekelwe kwi-samente. Inemisebenzi emininzi kwaye inokuphucula kakhulu ukusebenza kodaka lokwakha, ngakumbi ekwandiseni ukugcinwa kwamanzi, ukusebenza kunye nokuqina kodaka.
1. Ukugcinwa kwamanzi okongeziweyo
Enye yezona ziphumo zibalulekileyo ze-HPMC kukugcina amanzi okugqwesileyo. Kwimixube yodaka, i-volatilization kunye nokulahlekelwa kwamanzi kuya kuchaphazela amandla, ukunamathela kunye nokusebenza kodaka. Ngokudibanisa i-HPMC, umthamo wokugcina amanzi wodaka uphuculwe kakhulu, unciphisa ngokufanelekileyo ilahleko yamanzi. Iimolekyuli ze-HPMC ziyi-hydrophilic, kwaye inokwenza ifilimu ebhityileyo ngaphakathi kodaka ukuthintela ukuvela komphunga kwangaphambi kwexesha, ngaloo ndlela iqinisekisa ukuba isamente inexesha elaneleyo le-hydration ngexesha lenkqubo yokunyanga.
Ugcino lwamanzi olongeziweyo lunezi nzuzo zilandelayo kudaka:
Nciphisa ukuqhekeka: Ukulahleka kwamanzi ngokukhawuleza kuya kubangela ukuba udaka lucutheke ngexesha lenkqubo yokunyanga, ngaloo ndlela yenze iintanda. Ukugcinwa kwamanzi kwe-HPMC kunokuthintela le nto ingenzeki kwaye iphucule ukuxhathisa kokuqhekeka kodaka.
Ukuphucula i-bonding: Ubungakanani obufanelekileyo bokuphendula kwe-hydration kunokudibanisa kangcono iinqununu ze-samente kunye nezinye izinto (ezifana nezitena, iileyile, njl.), Ukuphucula ukudibanisa komdaka.
Ukuphucula ukusebenza kolwakhiwo: Kuba i-HPMC inokugcina ubumanzi bodaka, abasebenzi bokwakha banokusasaza udaka ngokulula xa belusebenzisa, ngelixa benqanda ubunzima obubangelwa kukomiswa kodaka kwangaphambi kwexesha.
2. Ukuphucula ukusebenza kunye neplastiki
Ukongezwa kwe-HPMC kunokuphucula kakhulu ukusebenza kodaka, okwenza kube lula ukufaka isicelo, ukusasazeka kunye nokumila. Olu phawu lubangelwa ikakhulu yimpembelelo yokutyeba ye-HPMC kumxube wodaka. Njengokuqina, i-HPMC inokwenza ukuhambelana kodaka ngakumbi kwaye inqande ulwahlulo okanye ulwahlulo. Kwinkqubo yokwakhiwa kwangempela, i-uniform kunye nodaka olulula ukuyisebenzisa lunokunciphisa ubunzima bokwakha kunye nokuphucula ukusebenza kakuhle.
Ukuphucula iplastikhi: I-HPMC inokuphucula iplastiki yodaka ngokujiya kwayo, yenze udaka lube mpuluswa kwaye kungabi lula ukugrumba ngexesha lokufakwa kwesicelo. Oku kubaluleke ngakumbi xa kusakhiwa kumphezulu othe nkqo. I-HPMC inokunceda ukugcina udaka luncanyathiselwe eludongeni kwaye lunciphise inkunkuma yezinto.
Ixesha elivulekileyo elongeziweyo: I-HPMC inokwandisa ixesha elivulekileyo lodaka, inika abasebenzi bokwakha ixesha elingakumbi lokusebenza kunye nokulungelelanisa, ngaloo ndlela ithintela umgangatho wokwakha ochatshazelwa kukunyangwa kodaka kwangaphambi kwexesha.
3. Ukusebenza okuphuculweyo kokuchasana nokudodobala
Xa ukwakhiwa kumphezulu othe nkqo okanye kumphakamo, udaka luchaphazeleka kukuxhuzulana kwaye lusenokutyibilika okanye lujike, olungachaphazeli nje kuphela umphumo wokwakha kodwa lunokukhokelela kwinkunkuma yezinto eziphathekayo. Isiphumo sokuqina se-HPMC sinokuphucula kakhulu ukusebenza kodaka lodaka. Ngokuphucula i-viscosity yodaka, i-HPMC ivumela udaka ukuba luhlale luzinzile kumphezulu othe nkqo kwaye akukho lula ukutyibilika ngenxa yobunzima bawo.
Lo msebenzi wokuchasana nokudodobala ubaluleke ngakumbi kulwakhiwo oluthe nkqo kumphezulu onjengezinto zokuncamathelisa iithayile okanye iintsimbi zokugquma eludongeni zangaphandle. I-HPMC inokuqinisekisa ukuba udaka luhlala lukhona emva kokufakwa kwesicelo ngaphandle kweengxaki eziphantsi, ukuqinisekisa ukuba flatness kunye nobuhle bokwakha.
4. Ukomelezwa kokumelana neqabaka kunye nokumelana nemozulu
Udaka kufuneka lube nako ukuhlala ixesha elide phantsi kweemeko zemozulu ezahlukeneyo, ngakumbi kwiindawo ezibandayo, apho udaka luhlala lujongana novavanyo lwemijikelo yokunyibilika komkhenkce. Ukuba udaka alukwazi ukumelana neqabaka, amanzi aya kwanda xa engumkhenkce, abangele iintanda ngaphakathi kodaka. Ukugcinwa kwamanzi kunye neplastiki ye-HPMC iphucula ukuxhathisa kweqabaka, ukuyivumela ukuba igcine imfezeko yesakhiwo kwiindawo ezinobushushu obuphantsi.
I-HPMC inokuphucula ukumelana nemozulu yodaka, iwuvumela ukuba umelane nokhukuliseko lomoya kunye nemvula kunye nemitha yeultraviolet xa ibekwe kwindawo engaphandle ixesha elide. Oku kubaluleke kakhulu kwi-external wall mortar, i-adhesives ye-tile kunye nezinye izinto zokwakha ezivezwe kwindawo yendalo ixesha elide.
5. Ukuphucula amandla oxinzelelo kunye nokuqina
I-HPMC iphucula amandla odaka kunye nokuqina ngokubanzi ngokuphucula ubume bangaphakathi bodaka. Okokuqala, ugcino lwamanzi olwandisiweyo lwe-HPMC luqinisekisa ukuba isamente ifakwe emanzini ngokupheleleyo, ngaloo ndlela iphucula amandla odaka. Okwesibini, i-HPMC iphucula isakhiwo sangaphakathi se-pore sodaka, ukunciphisa ama-bubbles angaphezulu kunye nama-capillaries, anokunciphisa umngcipheko wokungena kwamanzi kunye nokuphucula ukusebenza koxinzelelo.
I-HPMC inokuphucula ukuqina kodaka kwindawo efumileyo. Ngenxa yokuba ifilimu ekhuselayo eyenzayo inokuthintela ukungena kwamanzi, ukusebenza kodaka lokuchasana nokungena kuphuculwe kakhulu. Oku kubaluleke kakhulu kwiindawo ezinomswakama ophezulu, ezifana namagumbi angaphantsi, iileya ezingenamanzi, kunye nezindlu zangasese.
6. Ukuphucula amandla ebhondi
I-HPMC inokuphucula amandla okudibanisa phakathi kodaka kunye ne-substrate. Xa ubeka iileyile okanye udaka, ibhondi phakathi kodaka kunye ne-substrate inquma ukuqina kunye nokuqina kwesakhiwo sonke. I-HPMC iphucula iipropati ze-rheological zodaka, zivumela ukuba zingene ngcono kumphezulu we-substrate kunye nokwandisa indawo yoqhagamshelwano, ngaloo ndlela iphucula ibhondi. Oku kunenzuzo enkulu yokusetyenziswa kwiindonga, imigangatho, kunye neminye imiboniso efuna ukomelela okuphezulu.
I-HPMC idlala indima ebalulekileyo ekuphuculeni ukusebenza kodaka lwebakala lokwakha. Ngogcino lwamanzi olugqwesileyo, ukutyeba, kunye neepropathi ezichasayo, i-HPMC inokuphucula ngokufanelekileyo ukusebenza kolwakhiwo, ukumelana nokuqhekeka, ukumelana nemozulu, kunye nokudityaniswa kodaka. Isetyenziswa kakhulu kwiinkalo ezininzi ezifana neenkqubo zokugquma eludongeni lwangaphandle, izinto zokuncamathelisa iithayile, imigangatho yokuzimela, njl.njl., kwaye licandelo eliyimfuneko nelibalulekileyo kwizinto zokwakha zanamhlanje.
Ixesha lokuposa: Sep-12-2024