I-Cellulose ether iyi-polymer engeyona i-ionic semi-synthetic, encibilika emanzini futhi incibilika kalula. Inemiphumela ehlukene ezimbonini ezahlukene. Isibonelo, ezintweni zokwakha zamakhemikhali, inemiphumela elandelayo ehlanganisiwe:
①I-ejenti yokugcina amanzi
②Ukuqina
③Ukulinganisa
④Ukwakheka kwamafilimu
⑤ Isibopho
Embonini ye-polyvinyl chloride, iyi-emulsifier kanye ne-dispersant; embonini yezemithi, iyi-binder kanye nezinto zohlaka lokukhululwa okuhamba kancane nokulawulwayo, njll. Ngenxa yokuthi i-cellulose inemiphumela ehlukahlukene ehlanganisiwe, ukusetshenziswa kwayo Insimu nayo ibanzi kakhulu. Okulandelayo, ngizogxila ekusetshenzisweni nasekusebenzeni kwe-cellulose ether ezintweni zokwakha ezahlukahlukene.
1. Embonini yokupenda i-latex, khetha i-hydroxyethyl cellulose, incazelo ejwayelekile ye-viscosity elinganayo yi-RT30000-50000cps, ehambisana nencazelo ye-HBR250, kanti umthamo ojwayelekile uvame ukuba ngu-1.5‰-2‰. Umsebenzi oyinhloko we-hydroxyethyl kupende we-latex ukujiya, ukuvimbela i-gelation ye-pigment, ukusiza ukuhlakazeka kwe-pigment, ukuqina kwe-latex, nokwandisa i-viscosity yezingxenye, okuwusizo ekusebenzeni kokulinganisa kokwakhiwa: I-Hydroxyethyl cellulose ilula kakhulu ukuyisebenzisa. Ingancibilikiswa emanzini abandayo noma emanzini ashisayo, futhi ayithintwa yinani le-pH. Ingasetshenziswa ngokuphephile phakathi kwenani le-PI 2 ne-12. Izindlela zokusebenzisa yilezi ezilandelayo:
I. Faka ngqo ekukhiqizweni: Kule ndlela, kufanele kukhethwe uhlobo olulibazisekile lwe-hydroxyethyl cellulose, bese kusetshenziswa i-hydroxyethyl cellulose enesikhathi sokuncibilika esingaphezu kwemizuzu engama-30. Amanzi ahlanzekile alinganisiwe ngaphakathi emlonyeni ②Qala ukuxuba ngesivinini esiphansi njalo, futhi ngesikhathi esifanayo engeza kancane i-hydroxyethyl esixazululweni ngokulinganayo ③Qhubeka uvuselela kuze kube yilapho zonke izinto ezihlanganisiwe zimanzi ④Engeza ezinye izithasiselo kanye nezithasiselo ze-alkaline, njll. ⑤Hlanganisa kuze kube yilapho wonke amaqembu e-hydroxyethyl encibilika ngokuphelele, bese ufaka ezinye izingxenye kufomula, bese ugaya kuze kube yilapho umkhiqizo usuqediwe.
Ⅱ. Ifakwe utshwala obuvela kumama ukuze isetshenziswe kamuva: Le ndlela ingakhetha i-cellulose esheshayo, enomphumela wokulwa nokukhunta. Inzuzo yale ndlela ukuthi inokuguquguquka okukhulu futhi ingafakwa ngqo kupende we-latex. Indlela yokulungiselela ifana nezinyathelo ①-④.
Ⅲ. Lungisa iphalishi ukuze ulisebenzise kamuva: Njengoba izinyibilikisi eziphilayo ziyizinyibilikisi ezimbi (ezinganyibiliki) ze-hydroxyethyl, lezi zinyibilikisi zingasetshenziswa ukulungisa iphalishi. Izinyibilikisi eziphilayo ezisetshenziswa kakhulu yiziketshezi eziphilayo ezakhiweni zopende we-latex, njenge-ethylene glycol, i-propylene glycol, kanye nama-ejenti akha ifilimu (njenge-diethylene glycol butyl acetate). Iphalishi i-hydroxyethyl cellulose lingafakwa ngqo kupende. Qhubeka uvuselela kuze kuncibilike ngokuphelele.
2. Ku-putty yokuklwebha odongeni: Njengamanje, i-putty yokuvikela imvelo engangeni manzi futhi engangeni ekukhucululweni emadolobheni amaningi ezweni lakithi iye yaziswa kakhulu ngabantu. Iglue yokwakha enempilo yenziwa nge-acetalizing polyvinyl alcohol kanye ne-formaldehyde. Ngakho-ke, le nto isuswa kancane kancane ngabantu, futhi imikhiqizo yochungechunge lwe-cellulose ether isetshenziselwa ukufaka esikhundleni sale nto. Okusho ukuthi, ekuthuthukiseni izinto zokwakha ezinobungani nemvelo, i-cellulose yiyona nto kuphela okwamanje. Ku-putty engangeni manzi, ihlukaniswe ngezinhlobo ezimbili: i-putty yempuphu eyomile kanye ne-putty paste. Phakathi kwalezi zinhlobo ezimbili ze-putty, i-methyl cellulose eguquliwe kanye ne-hydroxypropyl methyl kufanele kukhethwe. Ukucaciswa kwe-viscosity ngokuvamile kuphakathi kuka-30000-60000cps. Imisebenzi eyinhloko ye-cellulose ku-putty ukugcinwa kwamanzi, ukubopha kanye nokugcoba. Njengoba amafomula e-putty abakhiqizi abahlukahlukene ehlukene, amanye ayi-calcium empunga, i-calcium elula, usimende omhlophe, njll., kanti amanye ayi-powder ye-gypsum, i-calcium empunga, i-calcium elula, njll., ngakho-ke imininingwane, i-viscosity kanye nokungena kwe-cellulose kula mafomula amabili nakho kuhlukile. Inani elingeziwe licishe libe ngu-2‰-3‰. Ekwakhiweni kwe-putty yokuklwebha udonga, njengoba ubuso besisekelo sodonga bunezinga elithile lokumuncwa kwamanzi (izinga lokumuncwa kwamanzi odongeni lwezitini lingu-13%, kanti izinga lokumuncwa kwamanzi lwekhonkrithi lingu-3-5%), kuhlanganiswe nokuhwamuka komhlaba wangaphandle, uma i-putty ilahlekelwa amanzi ngokushesha kakhulu, kuzoholela ekuqhekekeni noma ekususweni kwempuphu, okuzokwenza buthaka amandla e-putty. Ngakho-ke, ukwengeza i-cellulose ether kuzoxazulula le nkinga. Kodwa ikhwalithi yokugcwalisa, ikakhulukazi ikhwalithi ye-calcium yomlotha nayo ibaluleke kakhulu. Ngenxa ye-viscosity ephezulu ye-cellulose, ukubutheka kwe-putty nakho kuyathuthukiswa, futhi into ewohlokayo ngesikhathi sokwakha nayo iyagwenywa, futhi ikhululekile kakhulu futhi yonga abasebenzi ngemva kokuklwebha. Kulula kakhulu ukwengeza i-cellulose ether ku-powder putty. Ukukhiqizwa kwayo nokusetshenziswa kwayo kulula kakhulu. Isigcwalisi kanye nezithasiselo zingaxutshwa ngokulinganayo ku-dry powder.
3. Udaka lwekhonkrithi: Kudaka lwekhonkrithi, ukuze kufinyelelwe amandla aphelele, usimende kumele ufakwe amanzi aphelele. Ikakhulukazi ekwakhiweni kwehlobo, udaka lwekhonkrithi lulahlekelwa amanzi ngokushesha kakhulu, futhi izindlela zokulinganisa amanzi aphelele zisetshenziselwa ukugcina nokufafaza amanzi. Indlela yokuqala iwukubangela ukumoshwa kwemithombo yamanzi kanye nokusebenza okungafanele. Iphuzu elibalulekile ukuthi amanzi aphezu kwamanzi kuphela, futhi amanzi angaphakathi awakapheleli. Ngakho-ke, ikhambi lale nkinga ukwengeza izinto eziyisishiyagalombili zokugcina amanzi kukhonkrithi yodaka. Ngokuvamile, kukhethwa i-hydroxypropyl. I-Methyl noma i-methyl cellulose, incazelo ye-viscosity iphakathi kuka-20000-60000cps, kanti inani lokwengeza lingu-2%-3%. Izinga lokugcina amanzi lingakhushulwa libe ngaphezu kuka-85%. Indlela yokusebenzisa kukhonkrithi yodaka ukuxuba impuphu eyomile ngokulinganayo bese uyithela emanzini.
4. Ekuplasteni i-gypsum, i-bonding gypsum, kanye ne-caulking gypsum: Njengoba imboni yokwakha ithuthuka ngokushesha, isidingo sabantu sezinto zokwakha ezintsha siyakhula. Ngenxa yokwanda kokuqwashisa kwabantu ngokuvikelwa kwemvelo kanye nokuthuthuka okuqhubekayo kokusebenza kahle kokwakha, izinto zokwakha i-cementitious Imikhiqizo ye-Gypsum iye yathuthukiswa ngokushesha. Njengamanje, imikhiqizo ye-gypsum evame kakhulu yi-plastering gypsum, i-bonding gypsum, i-inlaid gypsum, kanye ne-tile adhesive. I-plastering gypsum iyinto yokuplasta esezingeni eliphezulu yezindonga zangaphakathi nophahla. Ubuso bodonga obuplasteniwe ngayo bulungile futhi bubushelelezi. I-adhesive entsha yebhodi lokukhanya lesakhiwo iyinto enamathelayo eyenziwe nge-gypsum njengezinto eziyisisekelo kanye nezengezo ezahlukahlukene. Ifanele ukubopha phakathi kwezinto ezahlukene zodonga lwesakhiwo ezingaphili. Ayinawo ubuthi, Ayinaphunga, inamandla okuqala kanye nokusetha okusheshayo, i-bonding eqinile nezinye izici, iyinto esekelayo yamabhodi okwakha kanye nokwakhiwa kwamabhulokhi; i-ejenti ye-caulking ye-gypsum iwukugcwalisa isikhala phakathi kwamabhodi e-gypsum kanye nokugcwalisa ukulungisa izindonga nemifantu. Le mikhiqizo ye-gypsum inochungechunge lwemisebenzi ehlukene. Ngaphezu kwendima ye-gypsum kanye nezigcwalisi ezihlobene, inkinga ebalulekile ukuthi izithasiselo ze-cellulose ether ezengeziwe zidlala indima ehamba phambili. Njengoba i-gypsum ihlukaniswe i-gypsum engamanzi kanye ne-hemihydrate gypsum, i-gypsum ehlukene inemiphumela ehlukene ekusebenzeni komkhiqizo, ngakho-ke ukuqina, ukugcinwa kwamanzi kanye nokulibaziseka kunquma ikhwalithi yezinto zokwakha ze-gypsum. Inkinga evamile yalezi zinto ukugoba nokuqhekeka, futhi amandla okuqala awakwazi ukufinyelelwa. Ukuxazulula le nkinga, ukukhetha uhlobo lwe-cellulose kanye nendlela yokusebenzisa i-compound ye-retarder. Kulokhu, i-methyl noma i-hydroxypropyl methyl 30000 ngokuvamile ikhethwa. -60000cps, inani lokwengeza lingu-1.5%–2%. Phakathi kwazo, i-cellulose igxile ekugcinweni kwamanzi nasekulibaziseni ukuthambisa. Kodwa-ke, akunakwenzeka ukuthembela ku-cellulose ether njenge-retarder, futhi kuyadingeka ukwengeza i-citric acid retarder ukuze uyixube futhi uyisebenzise ngaphandle kokuthinta amandla okuqala. Ukugcinwa kwamanzi ngokuvamile kubhekisela ekutheni angakanani amanzi azolahleka ngokwemvelo ngaphandle kokumuncwa kwamanzi angaphandle. Uma udonga lomile kakhulu, ukumuncwa kwamanzi kanye nokuhwamuka kwemvelo ebusweni besisekelo kuzokwenza ukuthi izinto zilahlekelwe amanzi ngokushesha kakhulu, futhi kuzovela ukugoba nokuqhekeka. Le ndlela yokusebenzisa ixutshwe nempuphu eyomile. Uma ulungisa isixazululo, sicela ubheke indlela yokulungiselela isixazululo.
5. Udaka lokufaka i-insulation Udaka lokufaka i-insulation uhlobo olusha lwezinto zokufaka i-insulation odongeni lwangaphakathi esifundeni esisenyakatho. Luyizinto zodonga ezakhiwe ngezinto zokufaka i-insulation, udaka kanye ne-binder. Kulesi sici, i-cellulose idlala indima ebalulekile ekuhlanganiseni nasekukhuliseni amandla. Ngokuvamile khetha i-methyl cellulose ene-viscosity ephezulu (cishe ama-eps ayi-10000), umthamo ngokuvamile uphakathi kuka-2‰-3‰), futhi indlela yokusebenzisa ukuxuba i-dry powder.
6. I-ejenti yokuxhumana Khetha i-HPNC engu-20,000 cps njenge-ejenti yokuxhumana, khetha i-60,000 cps noma ngaphezulu njenge-adhesive tile, bese ugxila ku-ejenti yokuqina ku-ejenti yokuxhumana, engathuthukisa amandla okudonseka kanye namandla okulwa nomcibisholo. Isetshenziswa njenge-ejenti yokugcina amanzi ekuhlanganiseni kwamathayili ukuvimbela amathayili ukuthi aphelelwe amanzi ngokushesha futhi awe.
Isikhathi sokuthunyelwe: Feb-18-2023