Focus on Cellulose ethers

Properties da kuma amfani da hydroxyethyl cellulose

Babban kaddarorin hydroxyethyl cellulose shine cewa yana narkewa a cikin ruwan sanyi da ruwan zafi, kuma ba shi da kayan gel. Yana da nau'ikan digiri na maye gurbin, solubility da danko, kyakkyawan kwanciyar hankali na thermal (a ƙasa 140 ° C), kuma baya samar da gelatin a ƙarƙashin yanayin acidic. hazo. Hydroxyethyl cellulose bayani zai iya samar da fim mai haske, kuma yana da halaye na nau'in nau'in nau'in ion wanda ba ya hulɗa tare da ions kuma yana da dacewa mai kyau.

① High zafin jiki juriya da ruwa solubility: Idan aka kwatanta da methylcellulose (MC) wanda shi ne kawai mai narkewa a cikin ruwan sanyi, hydroxyethyl cellulose za a iya narkar da a cikin ruwan zafi ko ruwan sanyi, kuma ba ya hazo a high zafin jiki ko tafasasshen, yin shi da fadi da kewayon. solubility da danko halaye, da kuma wadanda ba thermal gelation;

②Haƙuri na gishiri: Tun da ba shi da ionic, yana iya zama tare da sauran nau'ikan polymers masu narkewa da ruwa, surfactants, da salts. Saboda haka, idan aka kwatanta da ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose yana da mafi alhẽri gishiri juriya.

③ Riƙewar ruwa, daidaitawa, da abubuwan samar da fina-finai: ƙarfin riƙe ruwa ya ninka na methyl cellulose sau biyu, kuma yana da kyakkyawan tsarin tafiyar da ruwa, kyawawan abubuwan ƙirƙirar fim, sarrafa asarar ruwa, rashin kuskure, da jima'i na colloid mai karewa.

Amfani da hydroxyethyl cellulose

Hydroxyethyl cellulose ne mai ba ionic ruwa mai narkewa cellulose ether samfurin, wanda aka yadu amfani a gine-gine coatings, man fetur, polymerization polymerization, magani, yau da kullum amfani, takarda da tawada, masana'anta, tukwane, gini, noma da sauran masana'antu. Yana da ayyuka na thickening, bonding, emulsifying, tarwatsawa da kuma daidaitawa, kuma zai iya kula da ruwa, samar da fim da kuma samar da colloid sakamako mai karewa. Yana da sauƙi mai narkewa a cikin ruwan sanyi da ruwan zafi, kuma yana iya samar da bayani tare da nau'i mai yawa na danko. Yana da ci gaba a cikin 'yan shekarun nan. Daya daga cikin ethers cellulose mafi sauri.

fenti na latex

Hydroxyethyl cellulose shine mai kauri da aka fi amfani dashi a cikin fenti na latex. Baya ga kauri fenti, yana kuma iya emulsify, tarwatsawa, daidaitawa da riƙe ruwa. An halin da ban mamaki thickening sakamako, mai kyau launi ci gaban, fim kafa da kuma ajiya kwanciyar hankali. Hydroxyethyl cellulose wani nau'in cellulose maras ionic wanda za'a iya amfani dashi a cikin kewayon pH. Yana da dacewa mai kyau tare da sauran kayan a cikin ɓangaren (kamar pigments, additives, fillers da salts). Rubutun masu kauri tare da hydroxyethyl cellulose suna da kyau rheology a nau'ikan juzu'i daban-daban kuma suna pseudoplastic. Ana iya amfani da hanyoyin gine-gine kamar sutturar goga, abin nadi da abin feshi. Kyakkyawan gini, ba sauƙin drip ba, sag da fantsama, da kyawawan kayan daidaitawa.

Polymerization

Hydroxyethyl cellulose yana da ayyuka na watsawa, emulsifying, suspending da stabilizing a cikin polymerization ko copolymerization aka gyara na roba resins, kuma za a iya amfani da matsayin m colloid. An halin da karfi dispersing iyawa, bakin ciki barbashi "fim", lafiya barbashi size, uniform barbashi siffar, sako-sako da irin, mai kyau fluidity, high samfurin nuna gaskiya da sauki aiki. Saboda hydroxyethyl cellulose za a iya narkar da a cikin ruwan sanyi da kuma ruwan zafi, kuma ba shi da gelation zazzabi batu, shi ne mafi dace da daban-daban polymerization halayen.

Muhimman abubuwan da ke cikin jiki don bincika ingancin watsawa sune tashin hankali (ko interfacial), ƙarfin tsaka-tsaki da zafin jiki na gelation na maganin ruwa. Wadannan kaddarorin na hydroxyethyl cellulose sun dace da polymerization ko copolymerization na roba resins.

Hydroxyethyl cellulose yana da kyakkyawar dacewa tare da sauran ethers cellulose mai narkewa da ruwa da PVA. Tsarin da aka haɗa ta haka da aka kafa zai iya samun cikakkiyar tasirin koyo daga juna. Abubuwan resin da aka yi bayan haɓakawa ba kawai suna da inganci mai kyau ba, har ma suna rage asarar kayan abu.

hako mai

A cikin hakowa da samar da mai, babban danko hydroxyethyl cellulose ana amfani da shi azaman thickener don kammala ruwaye da kuma kammala ruwa. Ana amfani da ƙananan danko hydroxyethyl cellulose azaman mai rage asarar ruwa. A cikin laka daban-daban da ake buƙata don hakowa, kammala rijiyar, rijiyar siminti da ayyukan fashe, ana amfani da hydroxyethyl cellulose azaman mai kauri don samun ruwa mai kyau da kwanciyar hankali na laka. A lokacin hakowa, zai iya inganta iya ɗaukar yashi na laka kuma ya tsawaita rayuwar sabis na rawar rawar soja. A low m lokaci kammala ruwa da siminti ruwa, da kyau kwarai ruwa asarar rage yi na hydroxyethyl cellulose iya hana babban adadin ruwa daga shigar da man Layer daga laka, kuma zai iya inganta samar iya aiki na mai Layer.

Daily Chemicals

Hydroxyethyl cellulose ne mai tasiri fim-forming wakili, dauri, thickener, stabilizer da dispersant a shampoos, gashi sprays, neutralizers, gashi conditioners da kayan shafawa; a wanke foda Yana da wakili na sake fasalin ƙasa. Hydroxyethyl cellulose yana narkewa da sauri a babban zafin jiki, wanda zai iya hanzarta aikin samarwa da haɓaka haɓakar samarwa. Siffar abin da ke cikin wanki mai ɗauke da hydroxyethyl cellulose shine cewa zai iya inganta santsi da siliki na masana'anta.

gine-gine

Ana iya amfani da hydroxyethyl cellulose a cikin samfuran gini kamar gaurayawan kankare, sabon turmi, filastar gypsum ko wasu siminti, da sauransu, don riƙe ruwa yayin ginin kafin saita da taurare. Bugu da ƙari, inganta riƙewar ruwa na kayan gini, hydroxyethyl cellulose kuma yana tsawaita gyarawa da lokacin buɗewa na filasta ko mastic. Zai iya rage fata, zamewa da sagging. Don haka, ana iya inganta aikin ginin, za a iya ƙara haɓaka aikin aiki, kuma ana iya adana lokaci. A lokaci guda, za a iya inganta ƙarfin faɗaɗa ƙarfin stucco, don haka adana albarkatun ƙasa.

noma

Ana amfani da hydroxyethyl cellulose a cikin samar da emulsion na magungunan kashe qwari da dakatarwa, azaman mai kauri don fesa emulsion ko dakatarwa. Yana iya rage raɗaɗin sinadarai kuma ya sanya shi manne da ganyen tsire-tsire, ta yadda zai ƙara tasirin feshin foliar. Hydroxyethyl cellulose kuma za a iya amfani da a matsayin fim-forming wakili a iri shafi jamiái; a matsayin mai ɗaure kuma mai shirya fim a cikin sake yin amfani da ganyen taba.

Takarda da Tawada

Ana iya amfani da hydroxyethyl cellulose azaman wakili mai ƙima don takarda da allo kuma azaman mai kauri da dakatarwa don tawada na tushen ruwa. A cikin tsari na takarda, mafi kyawun kaddarorin hydroxyethyl cellulose sun haɗa da dacewa tare da mafi yawan gumi, resins da inorganic salts, ƙananan kumfa, rashin amfani da iskar oxygen da ikon samar da fim mai laushi. Fim ɗin yana da ƙarancin ƙura da ƙyalli mai ƙyalli, wanda kuma zai iya rage farashin. Takarda mai girma tare da hydroxyethyl cellulose, wanda za'a iya amfani dashi don buga hotuna masu inganci. A cikin ƙera tawada mai tushen ruwa, tawada mai kauri da hydroxyethyl cellulose yana bushewa da sauri, yana da kyawun yaduwa mai launi, kuma baya haifar da mannewa.

masana'anta

Ana iya amfani da shi azaman mai ɗaure da ma'auni a cikin bugu na masana'anta da rini da fenti da latex; a matsayin mai kauri don kayan ƙima a bayan kafet. A cikin fiber gilashi, ana amfani da shi azaman wakili mai kafa da ɗaure; a cikin manna fata, ana iya amfani dashi azaman mai gyarawa da ɗaure. Samar da kewayon danko mai faɗi don waɗannan sutura ko adhesives, sanya suturar ta zama iri ɗaya da sauri, da haɓaka tsabtar bugu da rini.

tukwane

Za a iya amfani da shi don tsara maɗaukaki masu ƙarfi don yumbu.

man goge baki

Ana iya amfani da shi azaman mai kauri wajen kera man goge baki.


Lokacin aikawa: Janairu-03-2023
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