I-putty powder yakhiwa ngokuyinhloko izinto ezakha amafilimu (izinto zokwenza izibopho) I-Latex Towdex, njll. Ukusebenza nokusetshenziswa kwezinto ezahlukahlukene zamakhemikhali ezingahle zihlaziywa ngamunye ngamunye ngezansi.
1: Ukuchazwa nokwehluka kwe-fiber, i-cellulose kanye ne-cellulose ether
I-Fibre (US: I-fiber; isiNgisi: i-fiber) ibhekisa entweni ehlanganiswe ama-filaments aqhubekayo noma anqabile. Njengefayibha yesitshalo, izinwele zezilwane, i-silk fiber, i-fiber zokwenziwa, njll.
I-Cellulose yi-macromoleculate polysaccharide ehlanganiswe i-glucose futhi iyingxenye esemqoka yodonga lweseli lwesitshalo. Emazingeni okushisa ekamelo, iselula ayincibilika emanzini noma ezinhlamvwini ezijwayelekile ze-organic. Ukuqukethwe kwe-cellulose kokotini kusondele ku-100%, okwenza kube ngumthombo wemvelo omnandi kakhulu we-cellulose. Ngokhuni olujwayelekile, ama-akhawunti we-cellulose ama-40-50%, futhi kukhona i-10-30% ehunyushellulose ne-20-30%. Umehluko phakathi kwe-cellulose (kwesokudla) kanye nesitashi (kwesobunxele):
Ngokuvamile, bobabili isitashi kanye ne-cellulose bangama-macromolecular polysaccharides, futhi ifomula yamangqamuzana ingavezwa njenge (c6h10o5) n. Isisindo se-molecular se-cellulose sikhulu kunaleso esitashi, kanti amaselula angabola ukukhiqiza isitashi. I-cellulose yi-D-glucose kanye nama-β-1,4 glycoside ama-polysaccharides ahlanganiswe ama-bond, ngenkathi isitashi senziwa ngamabhondi we-α-1,4 glycosidic. I-cellulose ngokuvamile ayinakiwe, kepha isitashi ifakwe ngamabhondi angama-1,6 glycosic. I-cellulose ayincibiliki kabi emanzini, kanti isitashi sencibilika emanzini ashisayo. I-cellulose ayinandaba ku-amylase futhi ayiphendukeli okwesibhakabhaka lapho kuvezwa i-iodine.
Igama lesiNgisi le-cellulose ether liyi-cellulose ether, okuyingxenye ye-polymer ngesakhiwo se-ether eyenziwe nge-cellulose. Kungumkhiqizo wokusabela kwamakhemikhali we-cellulose (isitshalo) nge-ejenti yokungena. Ngokwehlukaniswa Kwamakhemikhali Sokuhlukaniswa Kwamakhemikhali Ngemuva kokuthembela, kungahlukaniswa kuba abathakathi be-anionic, i-cationic kanye ne-anion. Kuya nge-ejenti yokusheshisa okusetshenzisiwe, kunama-mettyl cellulose, i-hydroxyyethyl methyl cellulose, i-cardboxypropyl cellulose, i-ethywoxypropyl thrulose, i-hydroxyllosellyl thrulose, i-hydroxyllosellyls, i-hyzloxylllose, i-hyzylyllose, i-hyzylsyl ydroxyethyl cellulose kanye pernylylylylyllls, Phenylylyl ydroxyethyl cellulose, pernylyl lyro Phakathi kwa- Imboni yezokwakha, i-ether ye-cellulose ibizwa nangokuthi i-cellulose, okuyigama elingahambisani, futhi libizwa ngokuthi yi-cellulose (noma ether) kahle. Indlela yokuqina ye-cellulose ether ikhudlwana I-polymer chain of cellulose ether kulula ukwakha ibhondi ye-hydrogen ngamanzi emanzini, futhi isibopho se-hydrogen senza kube ne-hydration ephezulu kanye nokufakwa kwamanye ama-molecular.
Lapho i-cellulose ether likhula ingeziwe kupende we-latex, ithatha inani elikhulu lamanzi, okwenza ivolumu yalo yokwandisa kakhulu, ukunciphisa isikhala samahhala semibala, ama-filler kanye nezinhlayiya ze-latex; Ngasikhathi sinye, amaketanga we-cellulose ether Ngaphansi kwale miphumela emibili, ukubonakala kohlelo kuyathuthuka! Uthole umphumela wokuqina esiwudingayo!
I-Cellulose ejwayelekile (Ether): Ngokuvamile, i-cellulose emakethe isho i-hydroxypropyl, i-hydroxyethyl isetshenziselwa ikakhulukazi upende, upende we-latex, kanye ne-hydroxypropyl, kanye ne-hydroxypropyly methylcellulose kusetshenziselwa udaka, ama-putty neminye imikhiqizo. I-Carboxymethyl Cellulose isetshenziselwa i-putty evamile ye-putty powder yezindonga ezingaphakathi. I-Carboxymethyl Cellulose, eyaziwa nangokuthi i-sodium carboxymethyl cellulose, okubhekiswe kuyo njenge (CMC): I-Carboxymethyl celtulose (CMC) i-powder enobuthi enobuthi futhi inenzuzo kalula emanzini. I-Alkaline noma i-Alkaline esobala ebonakalayo, incibilika kwamanye ama-glues ancibilikayo wamanzi nama-resins, insoluble kuma-organic solvents afana ne-ethanol. I-CMC ingasetshenziswa njenge-binder, isikhungo, umenzi we-ejenti, i-emulsifier, i-advilifier, i-stabilizer, i-agentbox, njll. , ojwayele ukwaziwa ngokuthi "i-monosodium yezimboni i-glutamate". I-Carboxymethyl Cellulose inemisebenzi yokubopha, ukuqina, ukuqinisa, ukuqinisa, ukugcinwa kwamanzi nokumiswa. 1. Ukusebenza kwe-sodium carboxymethyl cellulose embonini yokudla: I-sodium carboxyylllls akuyona nje i-emulsifity stabilizer enhle hhayi kuphela ukuqina kokudla, kepha futhi inokuqina okuhle kakhulu kanye nokuncibilika, futhi kungathuthukisa ukunambitheka komkhiqizo isikhathi sokugcina isikhathi. 2. Ukusetshenziswa kwe-sodium carboxymetyl cellulose embonini yezemithi: Ingasetshenziswa njenge-emulsion stabilizer yemijovo, i-binder kanye ne-ejenti eyakha amafilimu embonini yezemithi. I-3. I-CMC ingasetshenziswa njenge-ejenti yokulwa nokuhlanza, i-emulsifier, ehlakazekile, i-ejenti yokulinganisa, nokunamathela kwezimbozo. Kungenza okuqukethwe okuqinile kwe-coaging ngokulinganayo kusatshalaliswe ku-solvent, ukuze ukuhlanganiswa akuhambi isikhathi eside. Isetshenziswa kabanzi ngopende. I-4. I-Sodium carboxyyl celtule Imboni yamakhemikhali yansuku zonke nezinye izinkambu, futhi ngenxa yokusebenza kwayo okuhle kakhulu kanye nohlu olubanzi lokusebenzisa, luhlala luthuthukisa izinkambu ezintsha zohlelo lokusebenza, futhi ithemba lemakethe libanzi kakhulu. Izibonelo zohlelo lokusebenza -15kg noma i-hpmc2.5-3kg4 cmc: 10-15kg noma i-HPMC2.5-3KG Ukusebenza okubophayo, nokugcinwa kwamanzi okuthile; ② Thuthukisa ikhono lokulwa nokuskena (ukugcwala) kwezinto ezibonakalayo, thuthukisa ukusebenza kokusebenza kwezinto ezibonakalayo, futhi wenze umsebenzi ubushelelezi; yelula isikhathi sokuvula sezinto ezibonakalayo. Ngemuva kokumiswa, ingaphezulu libushelelezi, alikuweli i-powder, inezakhiwo ezinhle zefilimu nokwehla. Okubaluleke kakhulu, umthamo mncane, futhi umthamo ophansi kakhulu ungafinyelela umphumela ophakeme; Ngasikhathi sinye, izindleko zokukhiqiza zincishiswa cishe nge-10-20%. Embonini yezokwakha, i-CMC isetshenziswa ekukhiqizweni kwezingubo zikakhonkolo, ezinganciphisa ukulahleka kwamanzi futhi zisebenze njengomthengisi. Noma ukwakhiwa okuphezulu, kungathuthukisa namandla kakhonkolo bese kusiza izisekelo zokuwa kusuka ku-membrane. Enye inhloso esemqoka ukuklebhula udonga olumhlophe no-putty, unamathisela uPutty, ongagcina izinto eziningi zokwakha futhi uthuthukise ungqimba oluvikelayo nokukhanya kodonga. I-Hydroxyyethyl methylcellulose, okubhekiswe kuyo njenge- (HEC): Ifomula yamakhemikhali:
1 Kuyinto engenamsindo, engenambitha, engenamsindo powder emhlophe noma i-granule, engachithwa emanzini abandayo ukwakha ikhambi elibonakalayo le-viscous, futhi ukuchithwa akuthintwa yinani le-PH. Inokuqina, ukubopha, ukusabalalisa, ukuhambisa, ukwakha amafilimu, ukumisa amafilimu, ukumisa ama-adsorbing, indawo esebenzayo, indawo esebenzayo kanye nezakhiwo ezivimbela usawoti.
2 I-Viscosity (MPA.S) 2%, 30000, 60000, i-100000 aquod adched at 20 ° C ezintathu, izinzuzo ze-Hydroxyethyl cellulose ephezulu
● I-HydroxyYethyl Cellulose ihlinzeka ngezindawo ezinhle kakhulu zokuhlanganisa izimbobo ze-latex, ikakhulukazi izigqoko eziphakeme ze-PVA. Akukho ukufukula okwenzeka lapho upende lungukwakha obukhulu.
● I-Hydroxyyethyl cellulose inomphumela ophakeme wokuqina. Kunganciphisa umthamo, kuthuthukise umnotho wefomula, futhi uthuthukise ukumelanahla kwenhlanganisela.
Izakhiwo ezinhle kakhulu ze-Rheological
● Isixazululo esinamanzi se-hydroxyethyl celtulose uhlelo olungelona neNewTonian, futhi impahla yesisombululo sayo ibizwa ngokuthi iThixotropy.
● Esimweni se-static, ngemuva kokuthi umkhiqizo uchithwe ngokuphelele, uhlelo lokuhlanganisa lugcina isimo esihle kakhulu sokuvulwa kanye nokuvula.
● Esesimweni sokuthulula, uhlelo lugcina ukubonwa okulinganiselayo, ukuze umkhiqizo ube nohlaka oluhle kakhulu futhi ngeke luhlehlise.
● Lapho isetshenziswa yi-brashi ne-roller, umkhiqizo usakazeka kalula kwi-substrate. Kulula ukwakhiwa. Ngasikhathi sinye, inokumelana okuhle.
● Ekugcineni, ngemuva kokuthi ukuhlanganiswa kuqediwe, ukubonakala kohlelo kutholakele ngokushesha, kanye nokuhlanganiswa ngokushesha kwe-sags.
Ukungafani kanye ne-solubility
● I-HydroxYethyl cellulose iphathwa ngokuchithwa okubambezelekile, okungavimba ngempumelelo i-agglomeration lapho kufakwa i-powder eyomile. Ngemuva kokuqinisekisa ukuthi i-hec powder ihlakazekile kahle, qala i-hydration.
● I-Hydroxyyethyl celtulose enokwelashwa okulungile okungaphezulu ingalungisa kahle izinga lokuchithwa kanye ne-viscosity ukukhuphuka kwezinga lomkhiqizo.
ukuqina kwesitoreji
● I-Hydroxyyethyl cellulose inezakhiwo ezinhle ze-anti-isikhutha futhi ihlinzeka ngesikhathi esanele sokubhala. Kuvimbela ngempumelelo imibala kanye nama-filler ekuxazululeni. I-4. Isetshenziswa kanjani: (1) Faka ngqo ngesikhathi sokukhiqiza Le ndlela ilula futhi ithatha isikhathi esifushane kunazo zonke. Izinyathelo zimi ngalendlela elandelayo: 1. Faka amanzi ahlanzekile ebhakedeni elikhulu elihlome nge-agaritator ephezulu. 2. Qala ukuvuselela ngokuqhubekayo ngejubane eliphansi futhi uluhluze kancane i-hydroxyethyl cellulose kwisixazululo ngokulinganayo. 3. Qhubeka uvuse kuze kube yilapho zonke izinhlayiya zimanzi. 4. Bese ufaka i-antifungal ejenti nezinye izithasiselo ezahlukahlukene. Njengombala, izinsiza ezihlakazayo, amanzi e-ammonia, njll. 5 . Inzuzo yale ndlela ukuthi inokuguquguquka okukhulu futhi kungangezwa ngqo kumkhiqizo oqediwe, kepha kufanele kugcinwe kahle. Izinyathelo ziyefana nezinyathelo (1-4) ngendlela (1): Umehluko ukuthi awukho u-Agitator ophakeme odingekayo, kunamanye ama-agarita anamandla anele okugcina isixazululo ngokulinganayo kusisombululo se-viscous. Kumele kwaziwe ukuthi i-antifungal ejenti kufanele ingezwe ku-loy youbal mama ngokushesha okukhulu. V Ekwenzeni imikhiqizo eqediwe, izengezo ezinjengezilinganiso kanye nama-filler asetshenziselwa ukusakazeka ngokufana, azinze futhi anikeze imiphumela yokuqina. Ingasetshenziswa futhi njenge-distrisant yokumiswa kwama-polymers afana ne-styrene, i-acrylate, ne-propylene. Kusetshenziswe ku-Latex Paint kungathuthukisa kakhulu ukusebenza nokuqina. 2 Thuthukisa udaka oluphethe amandla ngesikhathi sokumba, futhi uvikele inani elikhulu lamanzi ekungeneni ungqimba kawoyela kusuka odakeni, uqinise amandla okukhiqiza wesendlalelo sikawoyela. I-3. Isetshenziswa ekwakheni ukwakhiwa kanye nokwakha izinto: Ngenxa yokuthola amandla ayo okugcina amanzi, i-HEC ingumuntu osebenza ngempumelelo kanye ne-tinder ye-cement slurry nodaka. Ingaxutshwa ngodaka ukuze ithuthukise ukuthuthukisa uxhaso kanye nokwenza umsebenzi wokwakha, futhi yandise isikhathi sokuhwamuka kwamanzi, ithuthukise amandla okuqala ngokhonkolo futhi igweme imifantu. Kungathuthukisa kakhulu ukugcinwa kwayo kwamanzi kanye namandla abusayo lapho kusetshenziselwa udaka oluhlaza, udaka olubusayo, noPlaster Putty. I-4. Isetshenziswa ekuxhumaniseni izinyo: Ngenxa yokumelana kwayo okuqinile kusawoti ne-acid, i-HEC ingaqinisekisa ukuqina kwamazinyo. Ngaphezu kwalokho, amazinyo akulula ukoma ngenxa yokugcinwa kwawo kwamanzi okuqinile kanye nekhono lokufaka amandla. I-5. Lapho isetshenziswa ku-inki esekelwe emanzini, i-HEC ingenza inkinsi eyomile ngokushesha futhi ingabonakali. Ngaphezu kwalokho, i-HEC nayo isetshenziswa kabanzi ekuphrintweni kwendwangu nodaya, ama-papermaking, amakhemikhali nsuku zonke nokunye. I-6. Izinyathelo zokusebenzisa i-HEC: a. I-Hygroscopicity: zonke izinhlobo ze-hydroxyethyl cellulose Hec ziyi-hygroscopic. Okuqukethwe kwamanzi ngokuvamile kungaphansi kuka-5% lapho ushiya ifektri, kepha ngenxa yokuhamba okuhlukile nezindawo zokugcina, okuqukethwe kwamanzi kuzoba ngaphezulu kunalokho lapho ushiya ifektri. Lapho uyisebenzisa, hlukana okuqukethwe kwamanzi bese ususa isisindo samanzi lapho kubalwa. Ungayivezi emkhathini. b. I-Dust powder iyaqhuma: Uma wonke ama-organic powders kanye ne-hydroxyethyyl cellulose uthuli impuphu ungomoya endaweni ethile, bazophinde baqhume lapho behlangana nephuzu lomlilo. Ukusebenza kahle kufanele kwenziwe ukugwema i-powder yothuli emoyeni ngangokunokwenzeka. 7 Gcina endaweni enomoya ongena umoya ngaphakathi lapho ugcina, bese unaka umswakama. Naka imvula nokuvikelwa yilanga ngesikhathi sokuhamba. I-Hydroxypropyl Methyl Cellulose, okubhekiswe kuyo njenge- (HPMC): I-Hydroxypropylyky methyl celtule bahlakazeka banyamalale emanzini. Ngalesi sikhathi, uketshezi alunalo ukubonakala. Ngemuva kwemizuzu engaba mi-2, i-viscosity yoketshezi inyuka, yakha i-colloid esobala ye-volcous. Uhlobo olungewona osheshayo: lungasetshenziswa kuphela kwimikhiqizo eyomile ye-powder enjenge-putty powder nosimende kasimende. Akunakusetshenziswa ku-glue key upende, futhi kuzoba nokuqunjelwa.
Isikhathi sePosi: Dec-26-2022