I-Cellulose Ether iyi-polymer yokwenziwa engeyona eye-ionic, okuyi-soluble yamanzi futhi i-solvent-soluble. Inemiphumela ehlukile emikhakheni ehlukene. Isibonelo, ezintweni zokwakha amakhemikhali, inemiphumela elandelayo eyinhlanganisela:
I-ejenti egciniwe ye-①Water
②Huthickener
Evileting
Ukwakheka kwe-④Film
⑤ I-Binder
Embonini ye-polyvinyl chloride, kuyinto emulsifier futhi ihlakazekile; Embonini yezemithi, kuyisigaxa kanye nohlaka lokukhishwa kancane futhi olulawulwa ukukhishwa, njll. Ngoba i-cellulose inemiphumela ehlukahlukene yenhlanganisela, uhlelo lokusebenza lwayo insimu ibuye ibe ngcono kakhulu. Okulandelayo, ngizogxila ekusetshenzisweni nasekusebenzeni kwe-cellulose ether ezintweni ezahlukahlukene zokwakha.
1. Embonini wepende we-latex, khetha i-hydroxyethyl cellulose, ukucaciswa okujwayelekile kokubonakala okulinganayo yi-RT30000-50000cps, okuhambelana nokucaciswa kwe-HBR250, futhi umthamo wereferensi ngokuvamile ngokuvamile acishe abe ngu-1.5 ‰ -2 ‰. Umsebenzi oyinhloko we-HydroxyEthyl ku-Latex Paint ukuqina, ukuvikela ukubekeka kwe-pigment, ukusiza ukuhlakazeka kwe-pigment, ukuqina kwe-latex, futhi kukhuphule ukubonwa kwezakhi, okuwusizo ekusebenzeni kokwakha : I-Hydroxyethyl cellulose ilula ukuyisebenzisa. Ingachithwa emanzini abandayo noma emanzini ashisayo, futhi ayithintwa yinani le-PH. Ingasetshenziswa ngokuphepha phakathi kwe-PI Value 2 no-12. Izindlela zokusebenzisa zimi ngokulandelayo:
I. Faka ngqo ekukhiqizweni: Ngale ndlela, uhlobo lwe-hydroxyethyl cellulose kufanele ikhethwe, kanye ne-hydroxyethyl cellulose enesikhashana sokuchithwa kwemizuzu engaphezu kwe-30. Amanani ahlanzayo ahlanzeke ngaphakathi komlomo Ichitshiyelwe ngokuphelele, bese ufaka ezinye izinto kwifomula, bese ugaya kuze kube ngumkhiqizo ophelile.
Ⅱ. Ifakwe ngotshwala bomama ukuze basebenzise kamuva: Le ndlela ingakhetha i-cellulose esheshayo, enomphumela we-anti-mbutha. Inzuzo yale ndlela ukuthi inokuguquguquka okuthe xaxa futhi kungangezwa ngqo ku-Latex Paint. Indlela yokulungiselela iyafana nezinyathelo ①-④.
Ⅲ. Lungiselela i-porridge ngokusetshenziswa kwakamuva: Kusukela ama-organic solvents angama-solvents ampofu (insoluble) ye-hydroxyethyl, lezi zinhlaka zingasetshenziswa ukulungiselela iphalishi. I-solvents esetshenziswa kakhulu ye-organic uketshezi olwenziwayo ekwakhekeni kwepende ye-latex, njenge-ethylene glycol, i-plylene glycol, kanye nama-ejenti akha amafilimu (njenge-diethylene glycol butyl acetate). I-porridge hydroxyyethyl celtulese ingangezwa ngqo kupende. Qhubeka nokuvusa kuze kuchithwe ngokuphelele.
2. Odongeni olusopha uPututy: Njengamanje, ukuvikelwa kwemvelo uPutty olwa namanzi futhi amelana namanzi emadolobheni amaningi ezweni lami asezimweni zabantu. I-Healthy, i-glue yezokwakha yenziwa ngokufaka utshwala be-polyvinyl notshwala ne-formaldehyde. Ngakho-ke, lokhu okuqukethwe kuqedwa kancane kancane ngabantu, futhi imikhiqizo yeCellulose ether ether isetshenziselwa ukufaka le nto. Lokho kusho ukuthi, ukuthuthukiswa kwezinto zokwakha ezemvelo zokwakha, amaselula okwamanje okuwukuphela kwento. E-putty engamelana namanzi, ihlukaniswe ngezinhlobo ezimbili: i-dry powder putty ne-putty paste. Phakathi kwalezi zinhlobo ezimbili ze-putty, i-methyllulose eguquliwe kanye ne-hydroxypropyll methyl kufanele ikhethwe. Ukucaciswa kwe-Viscosity ngokuvamile kuphakathi kuka-30000-60000CPS. Imisebenzi esemqoka ye-cellulose ku-tutty ukugcinwa kwamanzi, ukubopha nokuthambisa. Njengoba amafomula ama-putty abakhiqizi ahlukahlukene ahlukile, ezinye ziyi-grey calcium, ukukhanya calcium, usimende omhlophe, njll. Amafomula amabili ahlukile. Inani elingeziwe lingaba 2 ‰ -3 ‰. Ekwakhiweni kodonga ukuskena uPutty, ngoba ingaphezulu lesisekelo sodonga linezinga elithile lokufakwa kwamanzi (izinga lokufakwa kwamanzi kodonga lwezitini luyi-13%, kanti izinga lokufakwa kwamanzi lingu-3-5%), Kuhlanganiswe nokuhwamuka komhlaba wangaphandle, uma i-putty ilahlekelwa amanzi ngokushesha okukhulu, kuzoholela emihlafwini noma ekususweni kwempuphu, okuzokwenza buthaka amandla we-putty. Ngakho-ke, ukungeza i-cellulose ether kuzoxazulula le nkinga. Kepha ikhwalithi ye-filler, ikakhulukazi ikhwalithi ye-ash calcium nayo ibaluleke kakhulu. Ngenxa yokuvunywa okuphezulu kwe-cellulose, i-buoyancy of the putty nayo iyathuthukiswa, futhi into ebabayo ngesikhathi sokwakha nayo iyagwenywa, futhi inethezekile futhi ikhululekile futhi ilondolozwa ngemuva kokuskena. Kuyinto elula ukwengeza i-cellulose ether ku-powder uPutty. Ukukhiqizwa kwayo nokusetshenziswa kwayo kulula kakhulu. I-filler nezengezo kungaxutshwa ngokulinganayo empuphu owomile.
3 Ikakhulu ekwakhiweni kwehlobo, udaka lukakhonkolo lulahlekelwa amanzi ngokushesha okukhulu, futhi izinyathelo zokugcwala ngokuphelele zisetshenziselwa ukugcina futhi zifafaze amanzi. Indlela yokuqala ukudala imfucumfucu yemithombo yamanzi nokusebenza okungahambi kahle. Iphuzu eliyisihluthulelo ukuthi amanzi asemgqeni kuphela, futhi i-hydration yangaphakathi isaphelele. Ngakho-ke, ikhambi lale nkinga ukwengeza ama-ejenti ayisishiyagalombili okugcina amanzi kukhonkolo kasimende. Ngokuvamile, kukhethwe i-hydroxypropyl. I-methyl noma i-methyl cellulose, ukucaciswa kwe-viscosity kuphakathi kuka-20000-60000CPS, futhi inani lokungezwa lingu-2% -3%. Izinga lokugcina amanzi lingandiswa libe ngaphezu kwama-85%. Indlela yokusebenzisa ukhonkolo ngodaka ukuxuba i-powder eyomile ngokulinganayo bese uyithululela emanzini.
I-4. Ku-gypsum elusiwe, i-gypsum ebophayo, kanye ne-caulsking gypsum: ngokuthuthuka okusheshayo kwemboni yezokwakha, isidingo sabantu sezinto ezintsha zokwakha siyanda. Ngenxa yokwanda kokuqwashisa kwabantu ngokuvikelwa kwemvelo kanye nokwenza ngcono okuqhubekayo kokusebenza kahle kwezokwakha, imikhiqizo ye-Gypsum yemikhiqizo ye-CENCES iye yathuthukiswa ngokushesha. Njengamanje, imikhiqizo evame kakhulu i-gypsum isebenzisa i-gypsum ebonakalayo, i-bonded gypsum, i-gypsum enama-gypsum, nethambisi. I-Plastering Gypsum iyisiko lokufaka esezingeni eliphakeme lokudonswa kwezindonga ezingaphakathi nophahla. Ingaphezulu elidonswayo lilotshwe nalo lilungile futhi libushelelezi. I-New Building Light Board Adhesive izinto ezinamathelayo ezenziwe nge-gypsum njengezinto eziyisisekelo kanye nezithasiselo ezahlukahlukene. Ilungele ukubopha izibopho phakathi kwezinto ezahlukahlukene zokwakha udonga. Kungamandla angewona anobuthi, anobuthi, abuthakathaka kanye nokuhlelwa okusheshayo, ukubopha okuqinile nezinye izici, kuyinto esekelayo yamabhodi okwakha kanye nokwakhiwa okuvinjelwe; I-Gypsum caulking agent ingumsizi wegebe phakathi kwamabhodi we-gypsum kanye ne-filler yokulungisa izindonga nemifantu. Le mikhiqizo ye-gypsum inochungechunge lwemisebenzi ehlukene. Ngaphezu kwendima ye-gypsum kanye nabasizi abahlobene, inkinga ebalulekile ukuthi izengezo ezingeziwe ze-cellulose ether zidlala indima eholayo. Njengoba i-gypsum ihlukaniswe nge-gypsum ye-anhydrous ne-hemihydrate gypsum, i-gypsum ehlukile inemiphumela ehlukene ekusebenzeni komkhiqizo, ngakho-ke ukuqina, ukugcinwa kwamanzi kanye nokubuyiselwa kwemali kuthola ikhwalithi yezinto zokwakha ze-gypsum. Inkinga evamile yalezi zinto ezibonakalayo inamafutha futhi iqhekeka, futhi amandla okuqala awatholakali. Ukuxazulula le nkinga, ukukhetha uhlobo lwe-cellulose kanye nendlela yokusetshenziswa kwe-retard. Kulokhu, i-methyl noma i-hydroxypropylylyl methyl 30000 ngokuvamile kukhethwe. -60000CPS, inani lokungezwa lingu-1.5% -2%. Phakathi kwazo, i-cellulose igxile ekugcinweni kwamanzi nasekubuyiseni ukuthambisa. Kodwa-ke, akunakwenzeka ukuncika ku-cellulose ether njenge-retarder, futhi kuyadingeka ukwengeza i-retarder ye-citric acid ukuxuba nokusebenzisa ngaphandle kokuthinta amandla okuqala. Ukugcinwa kwamanzi ngokuvamile kubhekisele emanzi angakanani azolahleka ngokwemvelo ngaphandle kokumuncwa kwamanzi kwangaphandle. Uma udonga lomile kakhulu, ukumuncwa kwamanzi kanye nokuhwamuka kwemvelo endaweni eyisisekelo kuzokwenza lokho kunciphise amanzi ngokushesha, futhi okunamafutha nokuqhekeka kuzokwenzeka. Le ndlela yokusebenzisa ixubene ne-powder eyomile. Uma ulungiselela ikhambi, sicela ubheke indlela yokulungiselela ikhambi.
I-5. Kuyinto yodonga lodonga oluhlanganiswe ngokwezinto zokufaka, udaka kanye ne-binder. Kulokhu okubonakalayo, i-cellulose idlala indima ebalulekile eBonding namandla andayo. Ngokuvamile khetha i-methyl cellulose nge-viscosity ephezulu (cishe nge-10000EPS), umthamo ngokuvamile uphakathi kuka-2 ‰ -3 ‰), futhi indlela yokusebenzisa i-powder yokuxuba.
I-6. I-ejenti ebonakalayo ikhetha i-HPNC 20,000 CPS njengo-ejenti we-interface, khetha i-60,000 CPS noma ngaphezulu njenge-ejenti yokuqina, futhi igxile ku-ejenti yokuqina e-ejenti ebonakalayo, okungathuthukisa amandla ashukumisayo kanye namandla okulwa nomcibisholo. Isetshenziswa njenge-ejenti yokugcina amanzi esondweni le-tile ukuvikela amathayili ekuziphatheni ngokweqile ngokushesha futhi ukuwa.
Isikhathi sePosi: Feb-18-2023