Uyini umqondo oyisisekelo weStamch Ether?
Impendulo: Isitashi ether ikakhulukazi sisetshenziswa odongeni lodaka, olungathinteka ukuguquguquka kodaka kususelwa ku-gypsum, usimende naku-lime, futhi ushintshe ukumelana nodaka kodaka. I-Starch izithembiso zivame ukusetshenziswa ngokubambisana ne-Cellulose Afers eguquliwe futhi eguquliwe. Ilungele izinhlelo ezingathathi hlangothi ne-alkaline, futhi iyahambisana nezithasiselo eziningi emikhiqizweni ye-gypsum kanye nosimende (njenge-surfactants, i-MC, isitashi kanye ne-polyminyl acetate namanye ama-polymers ancibilikayo).
Izici zeStarch Ether zilele ikakhulukazi ku:
(1) thuthukisa ukumelana kwe-sag;
(2) Thuthukisa ukusungulwa;
(3) isivuno sikadubulile esiphakeme.
Uyini umsebenzi oyinhloko we-Starch Ether ku-gypsum-based ngodaka eyomile?
Impendulo: isitashi i-ether ingenye yezithasiselo eziphambili zodaka lwempuphu eyomile. Ingahambelana nezinye izengezo. Isetshenziswa kabanzi emathangeni amathayili, ukulungisa izidakamizwa, ukulungiswa kwe-gypsum, i-gypsum yangaphakathi ne-caulking edongeni, ilungele ukusetshenziswa kwezinto zodaka, ilungele ukusetshenziswa kwesandla noma okufafaza okususelwa ku-cypsum. Isebenza kanjena:
(1) Isitashi ether kwesinye isikhathi sisetshenziswa ngokuhlanganiswa ne-methyl cellulose ether, ekhombisa umphumela omuhle wokuvumelanisa phakathi kwalokhu okubili. Ukungeza inani elifanele le-Starch Ether kuya ku-methyl cellulose ether kungathuthukisa kakhulu ukumelana kwe-SAG kanye nokuphikiswa okusele kodaka, ngenani lesivuno eliphakeme.
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Yiziphi izinzuzo zesicelo nezindlela zokugcina ze-Starch Ether?
Impendulo: Ingasetshenziswa njengokuhlanganiswa kwemikhiqizo esekwe kore, imikhiqizo esekwe e-gypsum kanye nemikhiqizo ye-ash-calcium.
(1) Izinzuzo kanye nezicelo:
a. Inomphumela wokuqina kudaka, ingakhula ngokushesha, futhi ine-lortity enhle;
b. Umthamo mncane, futhi umthamo ophansi kakhulu ungafinyelela umphumela ophakeme;
c. Thuthukisa ikhono lokulwa nesilayidi sodaka oluboshelwe;
d. Nweba isikhathi esivulekile sezinto ezibonakalayo;
e. Thuthukisa ukusebenza kokusebenza kwezinto ezibonakalayo bese wenza umsebenzi ubushelelezi.
(2) Isitoreji:
Umkhiqizo ungenwa umswakama futhi kufanele ugcinwe endaweni eyomile nepholile kwiphakheji yasekuqaleni. Kungcono ukuyisebenzisa kungakapheli izinyanga eziyi-12. (Kunconywa ukuthi isetshenziswe ngokubambisana ne-ether ye-cellule ether ephezulu, kanye nesilinganiso esijwayelekile se-cellulose ether kuya isitashi ether ngu-7: 3 ~ 8: 2)
Iyini indima ye-methyl cellulose ether e-Dry Powder Botar?
A: Methyl hydroxyethyyl cellulose ether (Mhec) ne-methyl hydroxyproppropylylllopylyllylllopylylllopypropyllopylylllls ether (HPMC) abhekiswe ku-methyl cellulose ether.
Emkhakheni we-powder eyomile, i-methyl cellulose ether iyinto ebalulekile elungisiwe ebonakalayo yodumo owomile onjenge-fortuder portar, u-gypssum onamathela, i-tulty, impahla yokuzithandela, i-caulking impahla. Kuma-powder omile ahlukahlukene, i-methyl cellulose ether ikakhulukazi idlala indima yokugcinwa kwamanzi nokuqina.
Iyiphi inqubo yokukhiqiza ye-methylcellulose?
Impendulo: Okokuqala, impahla eluhlaza okwesibhakabhaka ichotshozwa, khona-ke i-ALkalised yahlwitha ngaphansi kwesenzo se-caustic soda. Faka u-OleFem oxide (njenge-ethylene oxide noma i-proplemay oxide) ne-methyl chloride ukuze isheshise. Ekugcineni, ukugeza amanzi nokuzihlanza kwenziwa ekugcineni kuthola impuphu emhlophe. Le mpuphu, ikakhulukazi ikhambi layo elinamanzi, linezakhiwo ezibonakalayo ezithandekayo. I-cellulose ether esetshenziswa embonini yezokwakha yi-methyl hydroxyethylsyl cellulose ether noma i-methyl hydroxyprosellllls (okukhulunywa ngayo njenge-MHC noma i-MHPC, noma igama elilula kakhudlwana Mc). Lo mkhiqizo udlala indima ebaluleke kakhulu emkhakheni we-Dry Powder Botar. indima ebalulekile.
Isikhathi sePosi: Feb-22-2025