Focus on Cellulose ethers

Tala'aga o Gaosiga ma Su'esu'ega o Cellulose Ethers

Tala'aga o Gaosiga ma Su'esu'ega o Cellulose Ethers

O le cellulose ethers e iai se tala'aga umi o gaosiga ma su'esu'ega, na amata mai i le fa'ai'uga o le 19 seneturi.O le muamua cellulose ether, ethyl cellulose, na atiina ae i le 1860s e le kemisi Peretania Alexander Parkes.I le amataga o le 1900s, o le isi cellulose ether, methyl cellulose, na fausia e le fomaʻi Siamani Arthur Eichengrün.

I le 20th seneturi, o le gaosiga ma suʻesuʻega o cellulose ethers na faʻalauteleina tele.I le 1920s, na fausia ai le carboxymethyl cellulose (CMC) e avea o se ether cellulose e mafai ona solu vai.Na sosoo ai ma le atinaʻeina o le hydroxyethyl cellulose (HEC) i le 1930s, ma le hydroxypropyl methyl cellulose (HPMC) i le 1950s.O nei cellulose ethers o loʻo faʻaaogaina lautele i aso nei i le tele o alamanuia, e aofia ai meaʻai, vailaʻau, mea teuteu, ma faufale.

I totonu o fale gaosi meaʻai, e faʻaaogaina le cellulose ethers e fai ma mea mafiafia, emulsifiers, ma faʻamautu.E masani ona faʻaaogaina i oloa e pei o salati, aisakulimi, ma mea tao tao.I totonu o falemaʻi vailaʻau, e faʻaaogaina cellulose ethers e fai ma fusi, faʻamaʻi, ma mea faʻapipiʻi i totonu o laupepa ma capsules.I totonu o pisinisi teuteu, e faʻaaogaina e fai ma mea faʻafefete ma emulsifiers i kulimi ma lotions.I totonu o fale faufale, e faʻaaogaina le cellulose ethers e fai ma vai faʻapipiʻi vai ma faʻaleleia galuega i le sima ma le sima.

O su'esu'ega ile cellulose ethers o lo'o fa'aauau pea e o'o mai i aso nei, ma le fa'amoemoe ile atina'eina o mea fou ma le fa'aleleia ole cellulose ethers fa'atasi ai ma le fa'aleleia o meatotino ma galuega.O le alualu i luma i tekinolosi ua taʻitaʻia ai le atinaʻeina o auala fou mo le gaosia o le cellulose ethers, e pei o le enzymatic modification ma le vailaʻau faʻaogaina e faʻaaoga ai mea lanu meamata.Ole su'esu'ega faifaipea ma le atina'eina ole cellulose ethers e fa'amoemoe e ta'ita'ia ai ni talosaga fou ma maketi mo nei mea fa'apitoa i tausaga a sau.


Taimi meli: Mati-21-2023
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