The katundu waukulu wa hydroxyethyl mapadi ndi kuti sungunuka m'madzi ozizira ndi madzi otentha, ndipo alibe gelling katundu. Ili ndi digirii yambiri yolowa m'malo, solubility ndi mamasukidwe akayendedwe. 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.
①Kutentha kwambiri komanso kusungunuka kwamadzi: Poyerekeza ndi methyl cellulose (MC), yomwe imasungunuka m'madzi ozizira okha, hydroxyethyl cellulose imatha kusungunuka m'madzi otentha kapena madzi ozizira. Zosiyanasiyana za kusungunuka ndi kukhuthala kwa ma viscosity, komanso ma gelation osatentha.
②Kukana mchere: Chifukwa cha mtundu wake wosakhala wa ionic, umatha kukhala limodzi ndi ma polima ena osungunuka m'madzi, ma surfactants ndi mchere wambiri. Chifukwa chake, poyerekeza ndi ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose imakhala yabwino kukana mchere.
③Kusunga madzi, kusanja, kupanga filimu: mphamvu yake yosungira madzi imakhala yowirikiza kawiri kuposa ya methyl cellulose, yokhala ndi kayendetsedwe kabwino ka kayendedwe kake komanso kupanga mafilimu abwino kwambiri, kuchepetsa kutaya kwamadzimadzi, kusokoneza, kuteteza kugonana kwa colloid.
Kugwiritsa ntchito hydroxyethyl cellulose
Hydroxyethyl mapadi ndi sanali ionic madzi sungunuka mapadi etere mankhwala, chimagwiritsidwa ntchito zokutira zomangamanga, mafuta, polima polymerization, 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 kwenikweni. Imasungunuka mosavuta m'madzi ozizira ndi madzi otentha, ndipo imatha kupereka yankho ndi ma viscosity osiyanasiyana. Imodzi mwama cellulose ethers othamanga kwambiri.
1 utoto wa latex
Hydroxyethyl cellulose ndizomwe zimagwiritsidwa ntchito kwambiri pazovala za latex. Kuphatikiza pakukulitsa zokutira za latex, zimathanso kutulutsa, kubalalitsa, kukhazikika ndikusunga madzi. Amadziwika ndi kukhuthala kochititsa chidwi, kukula kwamtundu wabwino, kupanga mafilimu komanso 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 rheology yabwino pamitengo yometa ubweya wosiyanasiyana ndipo ndi pseudoplastic. Njira zomangira monga kupukuta, zokutira ndi kupopera mbewu mankhwalawa zingagwiritsidwe ntchito. Kumanga kwabwino, kosavuta kudontha, kugwedera ndi kuwaza, komanso kusanja bwino.
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 "filimu" wa particles, chabwino tinthu kukula, yunifolomu tinthu mawonekedwe, lotayirira mtundu, fluidity wabwino, mkulu mankhwala transparency ndi processing zosavuta. Chifukwa cellulose ya hydroxyethyl imatha kusungunuka m'madzi ozizira ndi madzi otentha, ndipo ilibe kutentha kwa gelling, ndiyoyenera kuchitapo kanthu mosiyanasiyana.
The zofunika thupi katundu kufufuza khalidwe la 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 lopangidwa motere limatha kupeza zotsatira za kuphunzira kuchokera ku mphamvu za wina ndi mnzake ndikukwaniritsa zofooka za wina. Zopangidwa ndi utomoni wophatikizika sizingokhala zabwino zokha, komanso zimachepetsa kutayika kwa zinthu.
3 kukumba mafuta
Pobowola ndi kupanga mafuta, high-viscosity hydroxyethyl cellulose imagwiritsidwa ntchito makamaka ngati viscosifier pomaliza zamadzimadzi ndi zomaliza. Low mamasukidwe akayendedwe hydroxyethyl mapadi ntchito ngati madzimadzi imfa reducer. M'matope osiyanasiyana ofunikira pobowola, kumaliza, simenti ndi fracturing ntchito, hydroxyethyl mapadi ntchito monga thickener kupeza fluidity wabwino ndi bata la matope. Pobowola, imatha kupititsa patsogolo mchenga wonyamula matope ndikutalikitsa moyo wautumiki wa pobowola. M'madzi otsika olimba omaliza ndi madzi opangira simenti, zinthu zabwino kwambiri zochepetsera madzi za hydroxyethyl cellulose zimatha kuletsa madzi ambiri kulowa mumatope, komanso kuwongolera mphamvu yopanga mafuta.
4 Mankhwala atsiku ndi tsiku
Hydroxyethylcellulose ndi filimu yothandiza kale, binder, thickener, stabilizer ndi dispersant mu shampoos, opopera tsitsi, neutralizers, conditioners ndi zodzoladzola; mu detergent powders Ndi chinthu chobwezeretsanso dothi. Ma cellulose a Hydroxyethyl amasungunuka mwachangu kutentha kwambiri, komwe kumatha kufulumizitsa kupanga ndikuwongolera kupanga bwino. Chodziwikiratu cha zotsukira zomwe zili ndi hydroxyethyl cellulose ndikuti zimatha kuwongolera kusalala komanso mercerization ya nsalu.
5 zomangamanga
Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito pomanga monga zosakaniza za konkire, matope atsopano, pulasitala ya gypsum kapena matope ena, ndi zina zotero, kusunga madzi pomanga asanakhazikike ndi kuumitsa. Kuphatikiza pa kukonza kusungika kwamadzi pazinthu zomanga, hydroxyethyl cellulose imathanso kutalikitsa kuwongolera ndi nthawi yotseguka ya stucco kapena mastic. Amachepetsa makhungu, kutsetsereka ndi kugwa. Izi zitha kupititsa patsogolo ntchito yomanga, kukonza magwiridwe antchito, kupulumutsa nthawi, komanso nthawi yomweyo kukulitsa kuchuluka kwa kuchuluka kwa stucco, potero kupulumutsa zopangira.
6 ulimi
Hydroxyethyl mapadi ntchito mankhwala emulsion ndi kuyimitsidwa formulations monga thickener kwa utsi emulsions kapena suspensions. Ikhoza kuchepetsa kutengeka kwa wothandizira ndikupangitsa kuti ikhale yolimba pamasamba a zomera, potero kuonjezera zotsatira za kupopera mbewu mankhwalawa. Ma cellulose a Hydroxyethyl atha kugwiritsidwanso ntchito ngati chopangira filimu popaka mbewu ndi kupaka; monga chomangira ndi kupanga mafilimu pobwezeretsanso masamba a fodya.
7 Pepala ndi Inki
Ma cellulose a Hydroxyethyl atha kugwiritsidwa ntchito ngati choyezera papepala ndi bolodi komanso ngati chowonjezera komanso choyimitsa ma inki okhala ndi madzi. Popanga mapepala, zinthu zabwino kwambiri za hydroxyethyl cellulose zikuphatikizapo kugwirizanitsa ndi chingamu zambiri, utomoni ndi mchere wa inorganic, thovu lochepa, kugwiritsira ntchito mpweya wochepa komanso luso lopanga filimu yosalala pamwamba. Kanemayo ali ndi kutsika kwapamtunda komanso kuwala kowala kwambiri, komanso kumatha kuchepetsa ndalama. Mapepala opangidwa ndi hydroxyethyl cellulose kuti asindikize apamwamba kwambiri. Popanga inki yochokera m'madzi, inki yochokera m'madzi yokhuthala ndi hydroxyethyl cellulose imauma mwachangu, imakhala ndi mawonekedwe abwino amtundu, ndipo satulutsa zomatira.
8 nsalu
Itha kugwiritsidwa ntchito ngati binder ndi sizing wothandizila mu kusindikiza nsalu ndi utoto phala ndi latex utoto; thickener poyesa zinthu kumbuyo kwa kapeti. Mu galasi CHIKWANGWANI, ntchito ngati akamaumba wothandizila ndi binder; mu zamkati zachikopa, zitha kugwiritsidwa ntchito ngati zosintha komanso zomangira. Amapereka kukhuthala kwakukulu kwa zokutira izi kapena zomatira, zomwe zimapangitsa kuti zokutirazo zikhale zofananira komanso zokhazikika komanso kumveka bwino kwa kusindikiza.
9 zoumba
Zomangira zolimba kwambiri popanga zoumba.
10 mankhwala otsukira mano
Itha kugwiritsidwa ntchito ngati thickener popanga mankhwala otsukira mano.
Nthawi yotumiza: Sep-24-2022