Cellulose eterahe hua'ōlelo hui no nā ʻano mea like ʻole i loaʻa mai ka cellulose maoli (ka pulupulu hoʻomaʻemaʻe a me ka pulp lāʻau, etc.) ma o ka etherification. He huahana ia i hana ʻia e ka hoʻololi ʻana a i ʻole ka hoʻololi piha ʻana o nā pūʻulu hydroxyl i loko o nā macromolecules cellulose e nā pūʻulu ether, a he derivative downstream o cellulose. Ma hope o ka etherification, hiki ke hoʻoheheʻe ʻia ka cellulose i loko o ka wai, hoʻoheheʻe i nā hopena alkali, a me nā mea hoʻoheheʻe organik, a loaʻa nā waiwai thermoplastic. Nui nā ʻano o ka cellulose ethers, hoʻohana nui ʻia i nā ʻoihana e like me ke kūkulu ʻana, ka sima, nā uhi, nā lāʻau lapaʻau, nā meaʻai, ka ʻaila, nā kemika o kēlā me kēia lā, nā textiles, ka hana pepa, a me nā mea uila. E like me ka helu o nā substituents, hiki ke hoʻokaʻawale ʻia i nā ethers hoʻokahi a me nā ethers i hui ʻia, a e like me ka ionization, hiki ke hoʻokaʻawale ʻia i nā ethers cellulose ionic a me nā ethers cellulose non ionic. I kēia manawa, ʻo ke kaʻina hana o nā huahana ionic cellulose ether ionic i oʻo, maʻalahi e hana, a haʻahaʻa ke kumukūʻai. He haʻahaʻa haʻahaʻa ka pale o ka ʻoihana, a hoʻohana nui ʻia i nā ʻano meaʻai meaʻai, textile additives, ʻoihana kemika i kēlā me kēia lā, etc. ʻO ia ka huahana nui i hana ʻia ma ka mākeke.
I kēia manawa, ʻo ka manaʻo nuicellulose ethersi loko o ke ao nei he CMC, HPMC, MC, HEC, etc. Iwaena o lakou, CMC i ka nui loa hana, helu no ma kahi o ka hapalua o ka global hana, oiai HPMC a me MC helu no ma kahi o 33% o ka global koi, a me HEC mooolelo no. ma kahi o 13% o ka mākeke honua. ʻO ka hoʻohana hope koʻikoʻi o Carboxymethyl cellulose (CMC) he mea hoʻomaʻemaʻe, helu no 22% o ka noi o ka mākeke o lalo. Hoʻohana nui ʻia nā huahana ʻē aʻe i nā mea kūkulu hale, nā meaʻai a me nā māla lāʻau.
Ka manawa hoʻouna: Jul-13-2023