Ukusetshenziswa kanye nendima ye-cellulose ether ezintweni zokwakha ezahlukahlukene

I-Cellulose ether uhlobo lwe-polymer engeyona i-ionic semi-synthetic ene-soluble emanzini kanye ne-solvent-soluble, ebangela izindima ezahlukene ezimbonini ezahlukene, isibonelo, ezintweni zokwakha zamakhemikhali, inezindima ezilandelayo ezihlanganisiwe:

① i-ejenti yokugcina amanzi ② isithambisi ③ ukulinganisa ④ ukwakha ifilimu ⑤ isibopho

Embonini ye-PVC, iyi-emulsifier, i-dispersant; embonini yezemithi, iyi-binder kanye nezinto zokwakheka kwe-skeleton ezikhishwa kancane futhi ezilawulwayo, njll. Kungenxa yokuthi i-cellulose inezindima ezahlukahlukene ezihlanganisiwe ukuthi inezinhlobo eziningi zezicelo. Okulandelayo kugxile ekusetshenzisweni kanye nendima ye-cellulose ether ezintweni zokwakha ezahlukahlukene.

(1) Ku-putty yodonga:

Njengamanje, izwe lethu emadolobheni amaningi, i-putty engangeni manzi, engangeni manzi, engangeni manzi, ibilokhu ibhekwa njengeyigugu kubantu eminyakeni embalwa yokuqala, ngenxa yokusetshenziswa kweglue yokwakha eyenziwe nge-putty ekhipha umonakalo wegesi ye-formaldehyde empilweni yabantu, iglue yokwakha yenziwe nge-polyvinyl alcohol kanye ne-formaldehyde acetal reaction. Ngakho-ke le nto isuswa kancane kancane ngabantu, futhi ithathe indawo yale nto yimikhiqizo yochungechunge lwe-cellulose ether, okungukuthi, ukuthuthukiswa kwezinto zokwakha ezinobungane nemvelo, i-cellulose okwamanje iyona kuphela into eyodwa.

I-putty engangeni manzi ihlukaniswe ngempuphu eyomile i-putty kanye ne-putty paste izinhlobo ezimbili ze-putty, lezi zinhlobo ezimbili ze-putty ngokuvamile zikhetha i-methyl cellulose eguquliwe kanye ne-hydroxypropyl methyl izinhlobo ezimbili ze-viscosity specifications ngokuvamile ziphakathi kwama-30000-60000cps afaneleka kakhulu, indima eyinhloko ye-putty cellulose ukugcina amanzi, ukubopha, ukuthambisa kanye nezinye izindima. Ngenxa yokuthi abakhiqizi abahlukahlukene be-putty formula abafani, abanye bangama-gray calcium, i-calcium elula, usimende omhlophe, njll., abanye bangama-gypsum powder, i-gray calcium, i-calcium elula, njll., ngakho-ke amafomula amabili okukhetha i-cellulose viscosity specifications kanye nokungena kwayo kwenani akufani, inani elijwayelekile lingama-2 ‰ -3 ‰ noma ngaphezulu. Ekukhuhleni ukwakhiwa kwe-putty yodonga, ngenxa ye-substrate yodonga, kunezinga elithile lokumuncwa kwamanzi (izinga lokumuncwa kwamanzi odongeni lwezitini lingu-13%, ukhonkolo ongu-3-5%), okuhambisana nezwe langaphandle lokuhwamuka, ngakho-ke uma i-putty ilahlekelwa amanzi ngokushesha kakhulu, izoholela ekuqhekekeni noma ekususeni uthuli kanye nezinye izenzakalo, ngaleyo ndlela inciphise amandla e-putty, ngenxa yalesi sizathu, ngemuva kokufaka i-cellulose ether izoxazulula le nkinga. Kodwa ikhwalithi yokugcwalisa, ikakhulukazi ikhwalithi ye-calcium empunga nayo ibaluleke kakhulu.

Ngoba i-cellulose ine-viscosity ephezulu, ngaleyo ndlela futhi kuthuthukisa ukunamathela kwe-putty, kodwa futhi nokugwema ukwakhiwa kwesimo sokulenga, kanye nokukhuhla ngemuva kokukhululeka kakhudlwana, ukonga abasebenzi nokunye. Ku-powder eyomile i-putty cellulose ether kufanele ifaneleke ukwengeza amaphuzu engeziwe, ukukhiqizwa kwayo, ukusetshenziswa kwayo kulula kakhulu, ukugcwalisa kanye nezithasiselo ze-powder eyomile ingxube efanayo ingaba, ukwakhiwa nakho kulula kakhulu, amanzi asendaweni, kanye nokuthi kungakanani nokuthi kungakanani.

(2) udaka lukakhonkolo:

Ku-mortar yekhonkrithi, efinyelela ngempela amandla okugcina, kumele wenze ukusabela komswakama ngokuphelele kwe-samente kuphela, ikakhulukazi ekwakhiweni kwehlobo, ukulahlekelwa kwamanzi kwe-samente yekhonkrithi ngokushesha kakhulu, thatha izinyathelo zokonga amanzi ngokugcwele, le ndlela iwukuchitha izinsiza zamanzi kanye nokuphazamiseka kokusebenza, isihluthulelo ukuthi amanzi aphezu kwamanzi kuphela, futhi ukumuncwa kwamanzi kwangaphakathi akukapheleli, ngakho-ke ikhambi lenkinga yendlela yokujoyina ukhonkrithi. I-ejenti yokugcina amanzi i-cellulose ngokuvamile ikhetha i-hydroxypropyl methyl noma i-methyl cellulose, ukucaciswa kwe-viscosity phakathi kuka-20000 - 60000cps, engeza u-2% - 3%. Cishe, izinga lokugcina amanzi lingakhushulwa libe ngaphezu kuka-85%, ukusetshenziswa kokhonkrithi wekhonkrithi ngendlela yempuphu eyomile exutshwe ngokulinganayo emanzini kungaba.

(3) ku-stucco plaster, i-bonding plaster, i-embedded plaster:

Ngokuthuthuka okusheshayo kwemboni yokwakha, isidingo sabantu sezinto zokwakha ezintsha siyakhula. Ngenxa yokwanda kokuqwashisa kwabantu ngokuvikelwa kwemvelo kanye nokuthuthuka okuqhubekayo kokusebenza kahle kokwakha, imikhiqizo ye-gypsum yezinto ezisebenzisa ukhonkolo iye yathuthukiswa ngokushesha. Njengamanje, imikhiqizo ye-gypsum evame kakhulu yi-brushing plaster, i-bonding plaster, i-embedded plaster, i-tile adhesive njalo njalo. I-brush plaster uhlobo lwezinto zokuplasta zekhwalithi ephezulu zodonga lwangaphakathi nebhodi eliphezulu, lapho ubuso bodonga buthambile futhi bubushelelezi, kungekho mpuphu ewayo futhi i-substrate iboshwe ngokuqinile ngaphandle kokuqhekeka nokuwa, futhi inomsebenzi wokuvimbela umlilo; i-bonding plaster uhlobo olusha lwe-ejenti yokwakha ibhodi lokukhanya, elenziwe nge-gypsum njengezinto eziyisisekelo futhi lengezwe ngezithasiselo ezahlukahlukene, futhi lifanelekela ukubopha zonke izinhlobo zezinto zokwakha odongeni ezingakhiqizi izinto eziphilayo, ezinezici zokungabi nobuthi, ukungabi nambitheki, ukuqina okusheshayo kanye nokubopha okusheshayo. Ifanele ukubopha phakathi kwezinhlobo ezahlukene zezinto zokwakha ezingaphili, ezinokuqina okungenabuthi, okungenaphunga, okusheshayo, okushesha, okuqinisayo nezinye izici, futhi iyinto esekelayo yokwakha amabhodi okwakha namabhulokhi; i-gypsum caulk iwukugcwalisa isikhala phakathi kwamabhodi e-gypsum kanye nokugcwalisa ukulungisa izindonga nemifantu.

Le mikhiqizo ye-gypsum inemisebenzi ehlukahlukene, ngaphezu kwe-gypsum kanye nama-filler ahlobene nawo adlala indima, inkinga ebalulekile ukwengeza izithasiselo ze-cellulose ether kudlala indima ehamba phambili. Njengoba i-gypsum ihlukaniswe i-gypsum engenamanzi kanye ne-semi-anhydrous gypsum, i-gypsum ehlukene inemiphumela ehlukene ekusebenzeni komkhiqizo, ngakho-ke ukuqina, ukugcinwa kwamanzi kanye nokulibaziseka kwezinto zokwakha ze-gypsum kunquma ikhwalithi yezinto zokwakha ze-gypsum. Inkinga evamile yalezi zinto ukugoba nokuqhekeka, amandla okuqala awakwazi ukufinyelelwa, ukuxazulula le nkinga, ukukhetha uhlobo lwe-cellulose kanye nokusetshenziswa kwe-retarder composite yenkinga, kulokhu, ukukhetha okujwayelekile kwe-methyl noma i-hydroxypropylmethyl 30,000 - 60,000cps, inani lokungezwa okungu-1.5% - 2%. Phakathi, i-cellulose okugxilwe kuyo ukugcotshwa kwe-retarder retention water. Kodwa-ke, kulokhu, i-cellulose ether ayifinyelelwanga njenge-retarder, i-citric acid retarder kufanele futhi ingezwe ukusetshenziswa okuxubile ngeke kuthinte amandla okuqala.

Izinga lokugcina amanzi ngokuvamile libhekisela esimweni lapho kungekho ukumuncwa kwamanzi kwangaphandle, inani lokulahleka kwamanzi ngokwemvelo, uma udonga lomile, ukumuncwa kwamanzi okuyisisekelo kanye nokuhwamuka kwemvelo kokulahleka kwamanzi kwezinto ngokushesha kakhulu, kuzokwenzeka okufanayo nezigubhu ezingenalutho, ukuqhekeka. Le ndlela yokusebenzisa ukusetshenziswa okuxubile kwempuphu eyomile, uma ukulungiswa kwesisombululo kungabhekisela ekulungisweni kwesisombululo.

(4) Udaka lokuvikela ukushisa

Udaka lokufaka ukushisa luwuhlobo olusha lwezinto zokufaka ukushisa odongeni lwangaphakathi, luyinto yodonga eyenziwe ngezinto zokufaka ukushisa, udaka kanye ne-binder. I-cellulose kule nto, egxile ekubopheni, yandisa indima yamandla. Ngokuvamile khetha i-methyl cellulose Njengoba i-viscosity ephezulu (10000cps noma ngaphezulu), umthamo ngokuvamile uphakathi kuka-2‰-3‰, kusetshenziswa indlela yokuxuba impuphu eyomile.