HEC bakeng sa Detergent

HEC Hydroxyethyl cellulose ke fibrous e bosoeu ho isa ho bosehla bo bosehla kapa bo tiileng ba phofo. E seng chefo, e sa latsoeheng. Ke nonionic cellulose ether, e qhibilihang metsing a batang le a chesang ka lebaka la hydrophilic hydroxyethyl ka molek'hule. Tharollo ea eona ea metsi e na le pH ea boleng ba 6.5 ~ 8.5 'me e tsitsitse ho futhumatsa. HEC e na le solubility e fapaneng ho ea ka tekanyo ea substitution (DS). Ha e qhibilihe ka har'a metsoako e mengata ea tlhaho. E na le thepa ea ho tiisa, ho emisa, ho khomarela, emulsification, ho hasana le ho boloka mongobo, joalo-joalo, 'me e ka lokisetsa tharollo ka mefuta e fapaneng ea viscosity. E na le ho qhibiliha ha letsoai ka mokhoa o sa tloaelehang ho dielectric, 'me tharollo ea eona ea metsi e lumelloa ho ba le letsoai le phahameng' me e lula e sa fetohe.

Hydroxyethyl cellulose HEClihlahisoa tse tala

Lisebelisoa tsa mantlha: cellulose ea toropo (sejo sa k'hothone kapa makhasi a tlase), alkali ea metsi, ethylene oxide, ethylene diron (40%).

Alkali fiber system ke polima ea tlhaho, selikalikoe se seng le se seng sa faeba se na le lihlopha tse tharo tsa hydroxyl, karabelo e sebetsang ka ho fetisisa ea hydroxyl ho theha hydroxyethyl cellulose. Kenya lijo tse tala tse tala kapa makhasi a phehiloeng ka har'a 30% alkali ea metsi ka halofo ea hora ebe u e hatella. Senya ho 1: 2.8 linyeoe tsa metsi a alkaline, ebe u silakanya. Selulose e pshatlehileng ea alkali e kenngoa ka ketleleng ea karabelo, e koetsoe, ea hlatsuoa, e tlatsitsoe ka naetrojene, 'me e phetoa khafetsa ebe e tlatsoa ka naetrojene ho nkela moea sebakeng seo. Mokelikeli o pholileng oa ethylene oxide o ile oa hatelloa ka har'a baki ea reactor ka metsi a pholileng, 'me karabelo e ne e laoloa hoo e ka bang 25C bakeng sa 2h ho fumana sehlahisoa sa hydroxyethyl fiber cable. Lihlahisoa tse tala tse nang le joala ho hlatsoa, ​​eketsa acetic acid neutralization ho VLL 46, jean e eketsa botsofali ba glyoxal crosslinking. Ebe o hlatsoa ka metsi, centrifugal dehydration, ho omisa, ho sila, hydroxyethyl cellulose.

1.1 alkali ea metsi

Sehlahisoa se hloekileng ke mokelikeli o bonaletsang o se nang 'mala. Boima ba kamano 2. 130, ntlha e qhibilihisang 318.4C, ntlha e belang 1390C. Soda ea Caustic 'marakeng e na le boemo ba potoloho. Le mokelikeli mefuta e 'meli: pure solid solid caustic soda white, flake, block, granular le rod shape, cytoplasm: pure liquid caustic soda bitsoa liquid alkali, colorless transparent liquid. Lihlahisoa tsa indasteri li na le litšila, haholo-holo sodium chloride le sodium carbonate, 'me ka linako tse ling e nyenyane ea tšepe oxide.

1.2 ethylene oxide

Ethylene oxide ke motsoako oa organic, formula ea lik'hemik'hale C2H40, ke carcinogen e chefo. 'Moba oa Epoxy o ka tuka ebile oa phatloha, ha ho bonolo ho tsamaisa maeto a malelele, kahoo ho na le sebaka se matla. E sebelisoa haholo indastering ea ho hlatsoa, ​​​​ea meriana, ea khatiso le ea ho daea. 3 oxyethane (E0) ke ether e bonolo ka ho fetisisa ea selikalikoe, ke ea metsoako ea heterocyclic, ke lihlahisoa tsa bohlokoa tsa petrochemical. Ethylene oxide ke mokelikeli o pepeneneng o se nang mebala mochesong o tlase le khase e se nang 'mala e nang le monko o hlabang oa maoto mochesong oa kamore. Khatello ea mouoane ea khase e phahame 'me e ka fihla 141kPa ho 30C. Khatello ena e phahameng ea mouoane e etsa qeto ea ho kenella ka matla ha epoxy z.alkane ha ho chesa. Sebaka se qhibilihang (C): -112.2. Boima ba kamano (metsi -1) : 0.8711

1.3 glyoxal

E 'mala o mosehla o nang le likhopo kapa o sa tsitsa ka mokhoa o sa tloaelehang, o fetoha o mosoeu ha o hatsetse.

Hydroxyethyl celluloseTlhahiso ea HECtshebetso

Behak'hothone e tloaelehileng kapa makhasi a hloekisitsoeng ka 30% lye. Tlosa ebe o tobetsa. E ntan'o siloa ebe e sebetsa ka ethylene oxide e se e pholile ho hlahisa hydroxyethyl cellulose. Ebe u hlatsoa ka joala 'me u kenye acetic acid ho hlatsoa le ho fokotsa. Ebe u eketsa botsofali ba glyoxal crosslinking, ho hlatsoa kapele ka metsi. Qetellong, ka mor'a centrifugation dehydration, ho omisa le ho sila, e felileHECsehlahisoa se fumanoa.

Mokhoa oa ho hlahisa molora o tlaseHEChydroxyethyl cellulose ka mokhoa o tsoelang pele oa ho hlatsoa ke karolo ea tekheniki ea lisebelisoa. Bothata ba tekheniki bo lokelang ho rarolloa ke ho fana ka ts'ebetso e tsoelang pele ea ho hlatsoa ka katleho e phahameng ea tlhahiso, tahlehelo e nyane ea ho hlatsoa solvent le thepa le litšenyehelo tse tlase ho hlahisa molora o tlase.HEChydroxyethyl cellulose. Mokhoa oa ho hlatsoa ka mokhoa o tsoelang pele ho hlahisa molora o tlaaseHEChydroxyethyl cellulose e tšoauoa ka mehato e latelang: A, e tala hydroxyethyl selulose le crosslinking agent e tsoakiloeng, crosslinking kalafo ho fumana slurry A; B. Eketsa ho hlatsoa solvent ho seretse A se fumanoeng mohatong oa A ho fumana seretse B; C. Eketsa slurry C e fumanoeng mohato oa B ho rotary pressure centrifuge 'me u fumane selulose e tlaase ea molora oa hydroxyethyl ka mor'a ho hlatsoa kamehla. Mokhoa ona o ka ntlafatsa haholo ts'ebetso ea ts'ebetso, o ntlafatsa haholo tahlehelo ea ho hlatsoa le lisebelisoa, 'me o fokotsa haholo molora oa sehlahisoa, o lokelang ho tsebahala le ho sebelisoa.