akụkọ-ọkọlọtọ

ozi

Cellulose ether bụ ihe dị iche iche nke chọtara ngwa na ụlọ ọrụ dị iche iche, sitere na ihe owuwu na ọgwụ na nri na ihe ịchọ mma. Edemede a bu n'obi iweta mmalite nke cellulose ether, na-ekwurịta ihe onwunwe ya, ojiji ya na uru ya.

Cellulose etherbụ okwu mkpokọta maka ụdị dị iche iche nke enwetara site na cellulose eke (owu a nụchara anụcha na pulp osisi, wdg) site na etherification. Ọ bụ ngwaahịa e mepụtara site na ngbanwe nke akụkụ ma ọ bụ zuru oke nke otu hydroxyl na cellulose macromolecules site na otu ether, ma bụrụ ihe mgbada sitere na cellulose. Mgbe etherification, cellulose bụ soluble na mmiri, itughari alkali ngwọta, na organic solvents, na nwere thermoplastic Njirimara. E nwere ụdị cellulose dị iche iche, nke a na-ejikarị eme ihe na ụlọ ọrụ dị ka ihe owuwu, ciment, mkpuchi, ọgwụ, nri, mmanụ ala, kemịkalụ kwa ụbọchị, textiles, mpempe akwụkwọ, na ngwa eletriki. Dị ka ọnụ ọgụgụ nke ndị nọchiri anya ya, enwere ike kewaa ya na otu ethers na ngwakọta ethers, na dị ka ionization, ọ nwere ike kewaa ya na ionic cellulose ethers na-abụghị ionic cellulose ethers. Ka ọ dị ugbu a, usoro mmepụta nke ionic cellulose ether ionic ngwaahịa na-eto eto, dị mfe ịmepụta, ọnụ ahịa ya dịkwa ntakịrị. Ihe mgbochi ụlọ ọrụ dị ntakịrị, a na-ejikarị ya eme ihe n'ọhịa nke ihe mgbakwunye nri, ihe mgbakwunye textile, ụlọ ọrụ kemịkalụ kwa ụbọchị, wdg. Ọ bụ isi ngwaahịa a na-emepụta n'ahịa.polymer ntụ ntụ redispersible

Ugbu a, ihe bụ isicellulose ethersn'ụwa bụ CMC, HPMC, MC, HEC, wdg. N'ime ha, CMC nwere nnukwu mmepụta, na-aza ihe dị ka ọkara nke mmepụta ụwa, ebe HPMC na MC na-akpata ihe dịka 33% nke ihe a na-achọ ụwa, na HEC na-akwụ ụgwọ maka ya. ihe dịka 13% nke ahịa ụwa. Ojiji njedebe kachasị mkpa nke Carboxymethyl cellulose (CMC) bụ nchacha, na-aza 22% nke ahịa ahịa ala. A na-ejikarị ngwaahịa ndị ọzọ eme ihe n'ihe owuwu ụlọ, nri na ọgwụ.cellulose ether


Oge nzipu: Jul-13-2023