1. Halin samar da gida na yanzu da kuma buƙatar hydroxyethyl cellulose
1.1 Gabatarwar Samfur
Hydroxyethyl cellulose (ana nufin hydroxyethyl cellulose) wani muhimmin hydroxyalkyl cellulose ne, wanda Hubert ya yi nasarar shirya shi a cikin 1920 kuma shine ether cellulose mai narkewa da ruwa tare da babban adadin samarwa a duniya. Kawai wannan shine mafi girma da sauri haɓaka mahimman ether cellulose bayan CMC da HPMC. Hydroxyethyl cellulose shine polymer wanda ba ya iya narkewa da ruwa wanda aka samo ta hanyar jerin sarrafa sinadarai na auduga mai ladabi (ko ɓangaren litattafan almara). Fari ne, mara wari, foda marar ɗanɗano ko ƙaƙƙarfan abu.
1.2 Ƙarfin samar da duniya da buƙata
A halin yanzu, manyan kamfanoni masu samar da hydroxyethyl cellulose na duniya sun tattara cikin ƙasashen waje. Daga cikin su, kamfanoni da yawa irin su Hercules da Dow a Amurka sun fi karfin samar da kayayyaki, sai Ingila, Japan, Netherlands, Jamus da Rasha. An kiyasta cewa ƙarfin samar da hydroxyethyl cellulose a duniya a cikin 2013 zai zama ton 160,000, tare da matsakaicin girma na shekara-shekara na 2.7%.
1.3 Ƙarfin samarwa na kasar Sin da buƙatarsa
A halin yanzu, ƙarfin samar da ƙididdiga na gida na hydroxyethyl cellulose shine ton 13,000. Ban da ƴan masana'anta, sauran galibi ana gyara su ne kuma samfuran haɗe-haɗe, waɗanda ba hydroxyethyl cellulose ba a zahiri. Sun fi fuskantar kasuwa ta uku. Na cikin gida pure hydroxyethyl cellulose Abubuwan da ake samu na tushen cellulose bai wuce tan 3,000 a kowace shekara ba, kuma karfin kasuwar cikin gida a halin yanzu yana da tan 10,000 a kowace shekara, wanda sama da kashi 70% na shigo da su ko kuma samar da su ta hanyar kamfanoni masu tallafi daga waje. Babban masana'antun kasashen waje sune Kamfanin Yakuolong, Kamfanin Dow, Kamfanin Klein, Kamfanin AkzoNobel; cikin gida hydroxyethyl cellulose samfurin masana'antun, yafi sun hada da North Cellulose, Shandong Yinying, Yixing Hongbo, Wuxi Sanyou, Hubei Xiangtai, Yangzhou Zhiwei, da dai sauransu A cikin gida hydroxyethyl cellulose kasuwa ne yafi amfani a coatings da kullum sinadaran masana'antu, kuma fiye da 70% na kasuwa. rabon da aka shagaltar da kayayyakin kasashen waje. Wani ɓangare na masana'anta, guduro da kasuwannin tawada. Akwai tazara mai inganci tsakanin kayayyakin cikin gida da na waje. Kasuwar babbar kasuwa ta hydroxyethyl ta asali samfuran ƙasashen waje ne ke mamaye su, kuma samfuran cikin gida suna cikin kasuwa ta tsakiya da ƙasa kaɗan. Yi amfani da haɗin gwiwa don rage haɗari.
Bukatar kasuwar hydroxyethyl cellulose ta dogara ne akan yankin, Kogin Pearl Delta (South China) shine na farko; Sai kuma Kogin Yangtze (Gabashin China); na uku, Kudu maso Yamma da Arewacin kasar Sin; saman 12 na latex ɗin, ban da Nippon Paint da Zijinhua, waɗanda ke da hedkwata a Shanghai, sauran kuma suna cikin yankin Kudancin China. Har ila yau, rabon kamfanonin sinadarai na yau da kullum ya fi yawa a Kudancin China da Gabashin China.
Yin la'akari da ƙarfin samar da ƙasa, fenti shine masana'antar da ta fi yawan amfani da hydroxyethyl cellulose, sannan kuma sinadarai na yau da kullun, kuma na uku, mai, da sauran masana'antu suna cinyewa kaɗan.
A cikin gida wadata da bukatar hydroxyethyl cellulose: overall wadata da kuma bukatar ma'auni, high quality-hydroxyethyl cellulose ne dan kadan daga stock, da ƙananan-karshen aikin injiniya shafi sa hydroxyethyl cellulose, man fetur-sa hydroxyethyl cellulose, kuma modified hydroxyethyl cellulose Cellulose aka yafi kawota ta kamfanoni na cikin gida. Kashi 70% na jimlar kasuwar hydroxyethyl cellulose ta cikin gida tana mamaye da babban ƙarshen hydroxyethyl cellulose na waje.
Properties da kuma amfani da 2-hydroxyethyl cellulose
2.1 Abubuwan da ke cikin hydroxyethyl cellulose
Babban kaddarorin hydroxyethyl cellulose shine cewa yana narkewa cikin ruwan sanyi da ruwan zafi, kuma ba shi da abubuwan gelling. Yana da fadi da kewayon maye gurbin, solubility da danko. 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 Babban zafin jiki da ruwa mai narkewa: Idan aka kwatanta da methyl cellulose (MC), wanda kawai yake soluble a cikin ruwan sanyi, hydroxyethyl cellulose za a iya narkar da shi a cikin ruwan zafi ko ruwan sanyi. Wide kewayon solubility da danko halaye, da kuma ba thermal gelation;
② Juriya na Gishiri: Saboda nau'in da ba na ionic ba, yana iya zama tare da sauran polymers masu narkewa da ruwa, surfactants da salts a cikin kewayo. Saboda haka, idan aka kwatanta da ionic carboxymethyl cellulose (CMC), hydroxyethyl cellulose yana da mafi alhẽri gishiri juriya.
③ Riƙewar ruwa, daidaitawa, samar da fim: ƙarfin riƙewar ruwa ya ninka na methyl cellulose, tare da ingantaccen tsari mai gudana da ingantaccen fim ɗin, raguwar asarar ruwa, rashin kuskure, jima'i mai karewa colloid.
2.2 Amfani da hydroxyethyl cellulose
Hydroxyethyl cellulose ne mai ba ionic ruwa mai narkewa cellulose ether samfurin, yadu amfani a gine-gine coatings, man fetur, polymerization polymerization, magani, yau da kullum amfani, takarda da tawada, yadudduka, tukwane, yi, noma da sauran masana'antu. Yana da ayyuka na thickening, bonding, emulsifying, tarwatsawa da kuma daidaitawa, kuma zai iya riƙe ruwa, samar da fim da kuma samar da kariya colloid sakamako. 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. Daya daga cikin ethers cellulose mafi sauri.
1) Fentin latex
Hydroxyethyl cellulose shi ne mafi yawan amfani da thickener a cikin latex coatings. Baya ga kauri na latex, yana kuma iya emulsify, tarwatsawa, daidaitawa da riƙe ruwa. An halin da ban mamaki thickening sakamako, mai kyau launi ci gaban, film-kafa dukiya da 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 gini kamar goga, abin nadi, da feshi. Kyakkyawan gini, ba sauƙin drip ba, sag da fantsama, da daidaitawa mai kyau.
Lokacin aikawa: Nuwamba-11-2022