IHydroxypropylmethylcellulose HPMC kudaka lokutyabeka

I-Hydroxypropyl methylcellulose (HPMC) imveliso yodaka lwangaphandle lokugquma eludongeni lulungiswa ukusuka kwiselulosi yomqhaphu ophezulu-ococekileyo ngokusebenzisa i-etherification ekhethekileyo phantsi kweemeko ze-alkali. Yonke le nkqubo igqitywe phantsi kweliso oluzenzekelayo kwaye ayiqulathanga naziphi na izithako zezilwanyana. Izithako ezisebenzayo ezifana nezitho kunye namafutha. Isetyenziselwa ngokubanzi ukuphucula ukusebenza kwezinto zokwakha ze-hydraulic ezifana ne-samente kunye ne-gypsum. Kudaka olusekwe kwisamente, kunokuphucula ukugcinwa kwamanzi, ukwandisa ixesha lolungiso kunye nexesha elivulekileyo, kunye nokunciphisa ukuthoba.

Kwi-plastering mortar, inani elongezelelweyo le-hydroxypropyl methylcellulose liphantsi kakhulu, kodwa linokuphucula kakhulu ukusebenza kodaka lokutyabeka, kwaye iyona nto idibeneyo echaphazela ukwakhiwa kodaka. Ukukhethwa okunengqiqo kwe-hydroxypropyl methylcellulose enee-viscosities ezahlukeneyo kunye nemali eyongezelelweyo inefuthe elihle ekuphuculeni ukusebenza kwe-powder mortar.

Kwi-plastering mortar, i-hydroxypropyl methylcellulose HPMC idlala indima yokugcina amanzi, ukuqina, ukulibazisa ukuhanjiswa kwe-samente, kunye nokuphucula ukusebenza kokwakhiwa.

Amandla okugcina amanzi alungileyo enza i-samente igqibezele ngakumbi, inokunyusa i-viscosity emanzi yodaka olumanzi, iphucule amandla okubopha udaka, kwaye inokulungelelanisa ixesha lokusebenza. Ukongezelela, ukusebenza kokupompa kokutshiza udaka kunokuphuculwa ngenxa yokongezwa kwe-hydroxypropyl methylcellulose HPMC, ngoko ke i-hydroxypropyl methylcellulose HPMC iya kukhuthazwa ngokubanzi njengesongezo sodaka.

1. Izakhiwo zokugcina amanzi - i-hydroxypropyl methylcellulose HPMC kukuthintela amanzi ekungeneni eludongeni.

Umlinganiselo ochanekileyo wamanzi ushiywe kwidaka, ukuvumela i-samente ibe nexesha elide lokumanzisa.

Ukugcinwa kwamanzi kuhambelana ngokuthe ngqo kwi-viscosity yesisombululo se-cellulose ether kwi-mortar.

Ukuphakama kwe-viscosity, ngcono ukugcinwa kwamanzi. Emva kokuba iamolekyu zamanzi zanda, ukugcinwa kwamanzi kuya kuncipha.

Ngenxa yokuba umlinganiselo ofanayo we-hydroxypropyl methylcellulose HPMC isisombululo sokwakhiwa, ukwanda kwamanzi kuthetha ukuhla kwe-viscosity.

Ukugcinwa kwamanzi okwandisiweyo kuya kubangela ixesha elide lokunyanga udaka olusetyenzisiweyo.

2. I-HPMC thickener isetyenziswa ikakhulu njenge-thickener kwi-arhente yojongano.

Inokuphucula amandla okuqina kunye namandla okuguquguquka, iphucule i-coat surface, iphucule ukunamathela, kwaye yonyuse amandla okuncamathela kodaka.

Ukungena kakuhle kuphucula ukufana kojongano. Ukuphucula ukuthambisa kunye nokuguquguquka kodaka, yenze kube lula ukuyifaka kunye nokuphucula ukusebenza kakuhle.

3. Ukusetyenziswa kwe-hydroxypropyl methylcellulose HPMC kunokuphucula ukwakhiwa kodaka.

Iglu yethayile ingasetyenziswa njengearhente yokugcina amanzi kunye nokuncamathelisa ekudibaneni kweethayile, ezinokuphucula kakhulu ukusebenza kolwakhiwo lwe-adhesive, iyenze ibe nexesha elide elivulekileyo kunye nokuncamathela okunamandla, kwaye kuthintele iithayile ukuba ziwe ngokukhawuleza. .

Iphucule ukusetyenzwa, ukugcinwa kakuhle kwamanzi, ukunamathela okuphuculweyo kunye nokumelana okuphezulu kwe-sag.

Phucula ukusebenza kwethayile, phucula ukusebenza kwethayile, phucula amandla okubopha kunye namandla okucheba.

4. Isakhono sokuthambisa.

Zonke ii-agent zokungenisa umoya zisebenza njengeejenti zokumanzisa.

Kuba zinciphisa ukuxinana komphezulu, zinceda ekusasazekeni komgubo ocolekileyo kumadaka xa zixutywe namanzi.

5. Udaka lwe-Anti-sag luthetha ukuba akukho ngozi ye-sag okanye i-sag ngexesha lokwakhiwa komaleko obunzima.

Ukuxhathisa kwe-sag kunokuphuculwa ngokusebenzisa i-hydroxypropyl methylcellulose HPMC yokutyabeka udaka.

Ingakumbi i-hydroxypropyl methylcellulose HPMC esandula ukwenziwa yokutyabeka udaka inokubonelela ngokusebenza okungcono kodaka lodaka.