I-HEC ye-Detergent

I-HEC I-Hydroxyethyl cellulose iyi-fibrous emhlophe kuya kokuphuzi okuphaphathekile noma okuqinile okuyimpuphu. Non-toxic, ayinambitheki. I-nonionic cellulose ether, encibilika emanzini abandayo nashisayo ngenxa ye-hydrophilic hydroxyethyl ku-molecule. Isixazululo saso esinamanzi sinenani le-pH lika-6.5 ~ 8.5 futhi azinzile ekushiseni. I-HEC inokunyibilika okuhlukile ngokwezinga lokushintshwa (DS). Ayincibiliki kuzincibilikisi eziningi eziphilayo. Inezici zokuqina, ukumiswa, ukunamathela, i-emulsification, ukuhlakazeka nokugcinwa komswakama, njll., futhi ingalungiselela izixazululo ngezigaba ezahlukene ze-viscosity. Ine-solubility kasawoti enhle ngendlela engavamile ku-dielectric, futhi isisombululo sayo samanzi sivunyelwe ukuqukatha ukuhlushwa okuphezulu kosawoti futhi sihlale singashintshi.

I-Hydroxyethyl cellulose I-HECukukhiqiza izinto zokusetshenziswa

Izinto zokusetshenziswa eziyinhloko: I-cellulose yedolobha (isisekelo sikakotini noma i-pulp ephansi), i-alkali ewuketshezi, i-ethylene oxide, i-ethylene diron (40%).

I-alkali fiber system iyi-polymer yemvelo, indandatho ngayinye yefayibha iqukethe amaqembu amathathu e-hydroxyl, ukusabela kwe-hydroxyl okusebenzayo kakhulu ukwakha i-hydroxyethyl cellulose. Gcoba isisekelo sikakotini ongahluziwe noma i-pulp yokudla ecolisisiwe ku-30% we-alkali ewuketshezi isigamu sehora bese uyicindezela. Gcoba ku-1: amakesi angu-2.8 wamanzi ane-alkali, bese uchoboza. I-alkali cellulose echotshoziwe ifakwa eketelani lokusabela, ivalwe, ivalwe, igcwaliswe i-nitrogen, futhi iphinde icwecwe futhi igcwaliswe i-nitrogen esikhundleni somoya ekesini. Uketshezi lwe-ethylene oxide olupholile ngaphambili lwacindezelwa ejazini le-reactor ngamanzi apholisayo, futhi ukusabela kwakulawulwa cishe ku-25C amahora angu-2 ukuze kutholwe umkhiqizo ongahluziwe wekhebula le-hydroxyethyl fibre. Imikhiqizo engahluziwe enotshwala okufanele igezwe, engeza i-acetic acid neutralization ku-VLL 46, i-jean yengeza ukuguga kwe-glyoxal crosslinking. Bese ugeza ngamanzi, ukuphelelwa amanzi kwe-centrifugal, ukomisa, ukugaya, i-hydroxyethyl cellulose.

1.1 i-alkali ewuketshezi

Umkhiqizo ohlanzekile uketshezi olungenambala olusobala. Ukuminyana okuhlobene 2. 130, indawo yokuncibilika 318.4C, iphoyinti abilayo 1390C. I-Caustic soda emakethe inesimo somjikelezo. Futhi uketshezi izinhlobo ezimbili: okuqinile okuqinile kwe-caustic soda emhlophe, i-flake, ibhulokhi, i-granular kanye nesimo senduku, i-cytoplasm: uketshezi oluhlanzekile lwe-caustic soda olubizwa nge-alkali ewuketshezi, uketshezi olungenambala olusobala. Imikhiqizo yezimboni iqukethe ukungcola, ikakhulukazi i-sodium chloride ne-sodium carbonate, futhi ngezinye izikhathi inani elincane le-iron oxide.

1.2 i-ethylene oxide

I-Ethylene oxide iyinhlanganisela yezinto eziphilayo, i-chemical formula C2H40, iyi-carcinogen enobuthi. I-epoxy cane iyavutha futhi iyaqhuma, akulula ukuyihambisa ngokuhamba amabanga amade, ngakho-ke kunesifunda esiqinile. Isetshenziswa kakhulu ezimbonini zokuwasha, ezemithi, zokunyathelisa nezokudaya. I-3 oxyethane (E0) iyi-ether eyindandatho elula kunazo zonke, eye-heterocyclic compounds, iyimikhiqizo ebalulekile ye-petrochemical. I-Ethylene oxide iwuketshezi olungenambala olubonisa ngale ekushiseni okuphansi kanye negesi engenambala enephunga elihlabayo lemilenze ekamelweni lokushisa. Umfutho we-vapor wegesi uphezulu futhi ungafinyelela ku-141kPa ngo-30C. Lokhu kucindezela komhwamuko ophezulu kunquma ukungena okuqinile kwe-epoxy z.alkane lapho kushunqa. Iphuzu elincibilikayo (C): -112.2. Ukuminyana okuhlobene (amanzi -1) : 0.8711

1.3 glyoxal

Ephuzi enamambambo noma axege ngendlela engavamile, aphenduke abe mhlophe lapho epholisa.

I-Hydroxyethyl celluloseUkukhiqiza i-HECinqubo

Bekaukotini okuyisisekelo noma i-pulp ecolisisiwe ku-30% ye-lye. Susa bese ucindezela. Ibe isichotshozwa futhi isabele nge-ethylene oxide esele ipholile ukukhiqiza i-hydroxyethyl cellulose engahluziwe. Bese ugeza ngotshwala bese ufaka i-acetic acid ukuze ugeze futhi unciphise. Bese wengeza ukuguga kwe-glyoxal crosslinking, ukuwasha ngokushesha ngamanzi. Ekugcineni, ngemva centrifugation dehydration, omiswe nokugaya, sekuphelileI-HECumkhiqizo uyatholakala.

Indlela yokukhiqiza umlotha ophansiI-HECI-hydroxyethyl cellulose ngenqubo yokugeza eqhubekayo iyingxenye yezobuchwepheshe bezinto zokwakha. Inkinga yezobuchwepheshe okufanele ixazululwe ukuhlinzeka ngenqubo yokugeza eqhubekayo ngokusebenza kahle kokukhiqiza okuphezulu, ukulahlekelwa okuncane kwe-solvent yokuwasha nezinto ezibonakalayo kanye nezindleko eziphansi zokukhiqiza umlotha ophansi.I-HECi-hydroxyethyl cellulose. Indlela yenqubo yokugeza eqhubekayo ukukhiqiza umlotha ophansiI-HECI-hydroxyethyl cellulose ibonakala kulezi zinyathelo ezilandelayo: A, i-hydroxyethyl cellulose engahluziwe kanye ne-crosslinking agent exutshwe, ukwelashwa okuxhumanisayo ukuze uthole udaka A; B. Engeza i-solvent yokuwasha ku-slurry A etholwe esinyathelweni A ukuze uthole udaka B; C. Engeza i-slurry C etholwe esinyathelweni B ibe yi-rotary pressure centrifuge futhi uthole i-low ash hydroxyethyl cellulose ngemva kokugeza okuqhubekayo. Indlela ingathuthukisa kakhulu ukusebenza kahle kokusebenza, ithuthukise kakhulu ukulahlekelwa kwe-solvent yokuwasha nezinto ezibonakalayo, futhi inciphise kakhulu okuqukethwe komlotha womkhiqizo, okufanele ukuthandwa nokusetshenziswa.