Celluloseshi ne babban bangaren ganuwar cell cell, kuma shi ne mafi yadu rarraba kuma mafi yawan polysaccharide a yanayi, lissafin fiye da 50% na carbon abun ciki a cikin shuka shuka. Daga cikin su, abun ciki na cellulose na auduga yana kusa da 100%, wanda shine mafi tsarkin halitta cellulose. A cikin itace gabaɗaya, cellulose yana da 40-50%, kuma akwai 10-30% hemicellulose da 20-30% lignin. Cellulose ether kalma ce ta gaba ɗaya don nau'ikan abubuwan da aka samo daga cellulose na halitta azaman albarkatun ƙasa ta hanyar etherification. Yana da samfur da aka kafa bayan ƙungiyoyin hydroxyl akan cellulose macromolecules an maye gurbinsu da wani ɓangare ko gaba ɗaya ta ƙungiyoyin ether. Akwai intra-sarkar da inter-sarkar hydrogen bond a cikin cellulose macromolecules, wanda yake da wuya a narke a cikin ruwa da kuma kusan duk Organic kaushi, amma bayan etherification gabatar da ether kungiyoyin iya inganta hydrophilicity da kuma ƙwarai ƙara solubility a cikin ruwa da Organic kaushi. Solubility Properties.
Cellulose ether yana da suna na "monosodium glutamate masana'antu". Yana da kyawawan kaddarorin kamar ƙwanƙwasa bayani, ingantaccen ruwa mai narkewa, dakatarwa ko kwanciyar hankali na latex, ƙirƙirar fim, riƙe ruwa, da mannewa. Har ila yau, ba mai guba ba ne kuma marar ɗanɗano, kuma ana amfani da shi sosai a cikin kayan gini, magunguna, abinci, yadi, sinadarai na yau da kullum, binciken man fetur, hakar ma'adinai, yin takarda, polymerization, sararin samaniya da dai sauransu. Cellulose ether yana da fa'idodin aikace-aikacen fa'ida, ƙaramin amfani da raka'a, kyakkyawan sakamako na gyare-gyare, da abokantaka na muhalli. Yana iya ingantawa da haɓaka aikin samfur a fagen haɓakarsa, wanda ke da amfani don haɓaka ingantaccen amfani da albarkatu da ƙarin ƙimar samfur. Abubuwan da ke da alaƙa da muhalli waɗanda ke da mahimmanci a fagage daban-daban.
Dangane da ionization na ether cellulose, nau'in masu maye gurbin da bambanci a cikin solubility, ether cellulose za a iya rarraba zuwa sassa daban-daban. Dangane da nau'ikan masu maye gurbin, ana iya raba ethers cellulose zuwa ethers guda ɗaya da gauraye ethers. Bisa ga solubility, cellulose ether za a iya raba zuwa ruwa-soluble da ruwa-insoluble kayayyakin. Bisa ga ionization, ana iya raba shi zuwa ionic, wadanda ba na ionic da samfurori masu gauraye ba. Daga cikin ethers cellulose mai narkewa da ruwa, ethers marasa ionic cellulose ethers irin su HPMC suna da juriya mafi kyawun zafin jiki da juriya na gishiri fiye da ionic cellulose ethers (CMC).
Ta yaya cellulose ether ke haɓakawa a cikin masana'antu?
Ana yin ether cellulose daga auduga mai ladabi ta hanyar alkalization, etherification da sauran matakai. Tsarin samar da magunguna na HPMC da matakin abinci na HPMC iri ɗaya ne. Idan aka kwatanta da ether na cellulose na kayan gini, tsarin samar da magunguna na HPMC da samfurin abinci na HPMC yana buƙatar matakan etherification, wanda yake da rikitarwa, da wuya a sarrafa tsarin samarwa, kuma yana buƙatar tsaftace kayan aiki da yanayin samarwa.
Bisa kididdigar da kungiyar masana'antu ta kasar Sin ta bayar, an ce, yawan karfin samar da masana'antun da ba na ion cellulose ether ba, tare da manyan karfin samar da kayayyaki a cikin gida, irin su Hercules Temple, Shandong Heda, da dai sauransu, ya zarce kashi 50% na yawan samar da kayayyaki na kasa. Akwai da yawa wasu ƙananan masana'antun da ba na ionic cellulose ether da ikon samar da kasa da 4,000 ton. Ban da ƴan masana'antu, yawancinsu suna samar da kayan gini na yau da kullun na cellulose ethers, tare da jimillar iya aiki na kusan tan 100,000 a kowace shekara. Sakamakon rashin ƙarfin kuɗi, ƙananan masana'antu da yawa sun kasa cika ka'idojin zuba jari na kare muhalli a cikin kula da ruwa da sharar iskar gas don rage farashin samar da kayayyaki. Yayin da kasar da sauran al'umma ke kara mai da hankali kan kiyaye muhalli, kamfanonin da ke cikin masana'antar da ba za su iya cika ka'idojin kare muhalli ba, sannu a hankali za su rufe ko rage samar da su. A wannan lokacin, yawan masana'antar masana'antar ether ta ƙasata za ta ƙara ƙaruwa.
Manufofin kare muhalli na cikin gida suna ƙara yin tsauri, kuma an gabatar da tsauraran buƙatu don fasahar kare muhalli da saka hannun jari a cikin samar da tsarin samarwa.cellulose ether. Matakan kare muhalli masu inganci suna haɓaka farashin samar da kamfanoni kuma suna samar da babban kofa don kare muhalli. Kamfanonin da ba za su iya biyan buƙatun kare muhalli ba za a iya rufe su a hankali ko rage samarwa saboda gazawar cika ka'idojin kare muhalli. Dangane da hasashen da kamfanin ya yi, kamfanonin da ke rage samarwa a hankali da dakatar da samarwa saboda dalilai na kare muhalli na iya haɗawa da jimlar samar da kusan tan 30,000 na kayan gini na yau da kullun na cellulose ether a shekara, wanda ke haɓaka haɓaka masana'antu masu fa'ida.
Dangane da ether cellulose, yana ci gaba da ƙaddamarwa zuwa samfurori masu daraja da ƙima
Lokacin aikawa: Afrilu-25-2024