Kuchita ndi kugwiritsa ntchito hydroxyethyl cellulose

Makhalidwe a Hydroxyethyl Cellulose

Zinthu zazikulu za cellulose ya hydroxyethyl ndikuti imasungunuka m'madzi ozizira ndi madzi otentha, ndipo ilibe katundu wa gel. Lili ndi digirii yambiri yolowa m'malo, kusungunuka ndi kukhuthala, kukhazikika kwabwino kwa kutentha (pansi pa 140 ° C), ndipo sikumapanga gelatin pansi pa acidic. mvula. Hydroxyethyl cellulose yankho likhoza kupanga filimu yowonekera, ndipo ili ndi makhalidwe amtundu wa si-ionic omwe sagwirizana ndi ayoni ndipo ali ndi mgwirizano wabwino.

① Kutentha kwakukulu ndi kusungunuka kwamadzi: Poyerekeza ndi methyl cellulose (MC) yomwe imasungunuka m'madzi ozizira okha, hydroxyethyl cellulose imatha kusungunuka m'madzi otentha kapena madzi ozizira, ndipo simawomba pa kutentha kwakukulu kapena kuwira, kupangitsa kuti ikhale ndi Wide solubility ndi mamasukidwe akayendedwe makhalidwe, ndi sanali thermogelling katundu.

②Kulekerera kwa mchere: Popeza si a ionic, imatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants, ndi mchere. Chifukwa chake, poyerekeza ndi ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose imakhala yabwino kukana mchere.

③Kusunga madzi, kusanja, ndi kupanga filimu: mphamvu yake yosungira madzi ndi yokwera kawiri kuposa ya methyl cellulose, ndipo ili ndi kayendetsedwe kabwino ka kayendetsedwe kake, mapangidwe abwino kwambiri opangira mafilimu, kutayika kwamadzimadzi, kusokonezeka, komanso kuteteza kugonana kwa colloid.

Kugwiritsa ntchito hydroxyethyl cellulose

Hydroxyethyl mapadi ndi sanali ionic madzi sungunuka mapadi etere mankhwala, amene chimagwiritsidwa ntchito zokutira zomangamanga, mafuta, polima polima, mankhwala, ntchito tsiku lililonse, pepala ndi inki, nsalu, ziwiya zadothi, zomangamanga, ulimi ndi mafakitale ena. Lili ndi ntchito za thickening, kugwirizana, emulsifying, dispersing and stabilizing, ndipo akhoza kusunga madzi, kupanga filimu ndi kupereka zoteteza colloid zotsatira. Imasungunuka mosavuta m'madzi ozizira ndi madzi otentha, ndipo imatha kupereka yankho ndi ma viscosity osiyanasiyana. Ndi chitukuko m'zaka zaposachedwapa. Imodzi mwama cellulose ethers othamanga kwambiri.

1. Utoto wa latex

Hydroxyethyl cellulose ndizomwe zimagwiritsidwa ntchito kwambiri mu utoto wa latex. Kuphatikiza pakukulitsa utoto wa latex, imathanso kuyimitsa, kubalalitsa, kukhazikika ndikusunga madzi. Amadziwika ndi kukhuthala kochititsa chidwi, kukula kwamtundu wabwino, kupanga filimu ndi kukhazikika kosungirako. Hydroxyethyl cellulose ndi chochokera ku cellulose chosakhala ionic chomwe chitha kugwiritsidwa ntchito mumitundu yambiri ya pH. Zimagwirizana bwino ndi zinthu zina zomwe zili mu gawoli (monga inki, zowonjezera, zodzaza ndi mchere). Zopaka zokhuthala ndi hydroxyethyl cellulose zimakhala ndi ma rheology abwino pamitengo yometa ubweya wosiyanasiyana ndipo ndi pseudoplastic. Njira zomangira monga zokutira burashi, zokutira zogudubuza ndi zokutira zopopera zitha kukhazikitsidwa. Kumanga kwabwino, kosavuta kudontha, kugwedera ndi kuwaza, komanso malo abwino osanja.

2. Polymerization

Ma cellulose a Hydroxyethyl ali ndi ntchito za dispersing, emulsifying, suspending and stabilizing mu polymerization kapena copolymerization zigawo za synthetic resins, ndipo angagwiritsidwe ntchito ngati colloid zoteteza. Iwo amakhala ndi mphamvu dispersing mphamvu, woonda tinthu "filimu", chabwino tinthu kukula, yunifolomu tinthu mawonekedwe, lotayirira mtundu, fluidity wabwino, mkulu mankhwala transparency ndi processing zosavuta. Chifukwa cellulose hydroxyethyl akhoza kusungunuka m'madzi ozizira ndi madzi otentha, ndipo alibe gelation kutentha mfundo, ndi oyenera zosiyanasiyana polymerization zimachitikira.

The zofunika thupi katundu kufufuza khalidwe dispersant ndi padziko (kapena interfacial) mavuto, interfacial mphamvu ndi gelation kutentha kwa njira yake amadzimadzi. Izi zimatha hydroxyethyl mapadi ndi oyenera polymerization kapena copolymerization wa kupanga utomoni. Ma cellulose a Hydroxyethyl amalumikizana bwino ndi ma cellulose ethers osungunuka m'madzi ndi PVA. Dongosolo lophatikizana lopangidwa motere limatha kupeza zotsatira zophunzirira kuchokera kwa wina ndi mnzake. Zopangidwa ndi utomoni wopangidwa pambuyo pophatikiza sizingokhala zabwino zokha, komanso zimachepetsa kutayika kwa zinthu.

3. Kubowola mafuta

Pobowola ndi kupanga mafuta, high-viscosity hydroxyethyl cellulose imagwiritsidwa ntchito ngati thickener pomaliza zamadzimadzi ndi kumaliza madzi. Low mamasukidwe akayendedwe hydroxyethyl mapadi ntchito ngati madzimadzi kutaya reducer. M'matope osiyanasiyana ofunikira pobowola, kumaliza bwino, kukonza simenti ndi kuphwanya ntchito, hydroxyethyl cellulose imagwiritsidwa ntchito ngati thickener kuti apeze madzi abwino komanso kukhazikika kwamatope. Pobowola, imatha kupititsa patsogolo kunyamula mchenga kwamatope ndikutalikitsa moyo wautumiki wa pobowola. Mu otsika olimba gawo kutsiriza madzimadzi ndi simenti madzimadzi, kwambiri kutaya madzi kuchepetsa ntchito ya hydroxyethyl mapadi angalepheretse kuchuluka kwa madzi kulowa wosanjikiza mafuta kuchokera matope, ndipo akhoza kusintha mphamvu yopanga wosanjikiza mafuta.

4. Mankhwala a tsiku ndi tsiku

Hydroxyethyl cellulose ndiwothandiza kupanga mafilimu, binder, thickener, stabilizer ndi dispersant mu shampoos, opopera tsitsi, neutralizers, tsitsi conditioners ndi zodzoladzola; mu ufa wochapira Ndi chinthu chobwezeretsanso nthaka. Ma cellulose a Hydroxyethyl amasungunuka mwachangu kutentha kwambiri, komwe kumatha kufulumizitsa kupanga ndikuwongolera kupanga bwino. Chodziwikiratu cha detergent yomwe ili ndi hydroxyethyl cellulose ndikuti imatha kusintha kusalala komanso kusalala kwa nsalu.

5. Zomangamanga

Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito pomanga monga zosakaniza za konkire, matope atsopano, pulasitala ya gypsum kapena simenti zina, ndi zina zotero, kusunga madzi pomanga asanakhazikike ndi kuumitsa. Kuphatikiza pa kukonza kusungika kwa madzi pazomangamanga, hydroxyethyl cellulose imatalikitsa kuwongolera ndi nthawi yotseguka ya pulasitala kapena mastic. Ikhoza kuchepetsa khungu, kutsetsereka ndi kugwa. Chifukwa chake, ntchito yomangayo imatha kuwongoleredwa, kugwira ntchito moyenera kumatha kuonjezedwa, ndipo nthawi imatha kupulumutsidwa. Panthawi imodzimodziyo, mphamvu yowonjezera mphamvu ya stucco ikhoza kusinthidwa, potero kupulumutsa zipangizo.

6. Ulimi

Hydroxyethyl mapadi ntchito mu chiphunzitso cha mankhwala emulsions ndi suspensions, monga thickener kwa utsi emulsions kapena suspensions. Zitha kuchepetsa kutengeka kwa mankhwala ndikuzipangitsa kuti zigwirizane ndi masamba a zomera, potero kuonjezera zotsatira za kupopera mbewu mankhwalawa. Ma cellulose a Hydroxyethyl amathanso kugwiritsidwa ntchito ngati chopangira filimu muzopangira zokutira mbewu; monga chomangira ndi kupanga mafilimu pobwezeretsanso masamba a fodya.

7. Kupanga mapepala ndi inki yosindikiza

Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito ngati chopangira mapepala ndi bolodi komanso ngati chowonjezera komanso choyimitsa ma inki okhala ndi madzi. Popanga mapepala, zinthu zabwino kwambiri za hydroxyethyl cellulose zimaphatikizapo kugwirizana ndi chingamu zambiri, utomoni ndi mchere wa inorganic, thovu lochepa, kugwiritsira ntchito mpweya wochepa komanso kuthekera kopanga filimu yosalala pamwamba. Firimuyi imakhala yotsika kwambiri komanso yowala kwambiri, yomwe imatha kuchepetsanso ndalama. Mapepala opangidwa ndi hydroxyethyl cellulose, omwe amatha kugwiritsidwa ntchito posindikiza zithunzi zapamwamba kwambiri. Popanga inki yochokera m'madzi, inki yochokera m'madzi yokhuthala ndi hydroxyethyl cellulose imauma mwachangu, imakhala ndi mawonekedwe abwino amtundu, ndipo samayambitsa kumamatira.

8. Nsalu

Itha kugwiritsidwa ntchito ngati chomangira komanso chopangira sizing muzosindikiza za nsalu ndi zopaka utoto ndi utoto wa latex; monga thickener poyesa zinthu zakuthupi kumbuyo kwa makapeti. Mu magalasi CHIKWANGWANI, amagwiritsidwa ntchito ngati wothandizira kupanga ndi binder; mu phala lachikopa, itha kugwiritsidwa ntchito ngati chosinthira ndi chomangira. Perekani kukhuthala kosiyanasiyana kwa zokutira kapena zomatira izi, pangani zokutira kukhala zofananirako komanso mwachangu, ndikuwongolera kumveka kwa kusindikiza ndi utoto.

9. Zoumba

Itha kugwiritsidwa ntchito popanga zomangira zolimba kwambiri zama ceramic.

10. Otsukira mkamwa

Itha kugwiritsidwa ntchito ngati thickener popanga mankhwala otsukira mano.