Akụkọ ihe mere eme nke mmepụta na nyocha nke cellulose ethers
Cellulose ethers nwere ogologo akụkọ ihe mere eme nke mmepụta na nyocha, malitere na njedebe narị afọ nke 19. Ether cellulose nke mbụ, ethyl cellulose, bụ onye British chemist Alexander Parkes mepụtara na 1860. Na mmalite 1900s, ether cellulose ọzọ, methyl cellulose, bụ onye German chemist Arthur Eichengrün mepụtara.
N'ime narị afọ nke 20, mmepụta na nyocha nke cellulose ethers gbasaara nke ọma. N'afọ ndị 1920, e mepụtara carboxymethyl cellulose (CMC) dị ka ether cellulose na-agbaze mmiri. Nke a sochiri mmepe nke hydroxyethyl cellulose (HEC) na 1930s, yana hydroxypropyl methyl cellulose (HPMC) na 1950s. A na-eji ether cellulose ndị a eme ihe taa n'ọtụtụ ụlọ ọrụ, gụnyere nri, ọgwụ, ihe ịchọ mma, na ihe owuwu.
N'ụlọ ọrụ nri, a na-eji ethers cellulose eme ihe dị ka ndị na-agbapụta, emulsifiers, na stabilizers. A na-ejikarị ha eme ihe na ngwaahịa dị ka mgbakwasa salad, ice cream na ngwaahịa esi nri. Na ụlọ ọrụ na-emepụta ọgwụ, a na-eji cellulose ethers mee ihe dị ka ndị na-ekekọta, ihe na-ekpochapụ, na ihe mkpuchi na mbadamba na capsules. N'ime ụlọ ọrụ ịchọ mma, a na-eji ha dị ka ihe na-eme ka ọkpụkpụ na emulsifiers na ude na lotions. N'ụlọ ọrụ ihe owuwu, a na-eji ethers cellulose mee ihe dị ka ihe na-ejigide mmiri na ihe na-arụ ọrụ na ciment na ngwa agha.
Nnyocha n'ime cellulose ethers na-aga n'ihu ruo taa, na-elekwasị anya n'ịmepụta ethers cellulose ọhụrụ na nke dị mma nke nwere njirimara na arụ ọrụ. Ọganihu na nkà na ụzụ emeela ka ịmepụta ụzọ ọhụrụ maka ịmepụta cellulose ethers, dị ka mgbanwe enzymatic na mgbanwe kemịkal site na iji ihe mgbaze ndụ ndụ. A na-atụ anya nyocha na mmepe nke cellulose ethers na-aga n'ihu na-eduga na ngwa ọhụrụ na ahịa maka ihe ndị a dị iche iche n'ime afọ ndị na-abịa.
Oge nzipu: Mar-21-2023