Cellulose ethers bụ ihe dị iche iche eji arụ ọrụ n'ụdị dị iche iche gụnyere ihe owuwu, ọgwụ na nri.Usoro mmepụta nke cellulose ether dị nnọọ mgbagwoju anya, na-agụnye ọtụtụ usoro, na-achọkwa nkà na ngwá ọrụ pụrụ iche.N'isiokwu a, anyị ga-atụle n'ụzọ zuru ezu usoro mmepụta nke cellulose ethers.
Nzọụkwụ mbụ na usoro mmepụta cellulose ether bụ nkwadebe nke akụrụngwa.Ngwa ndị a na-eji emepụta ethers cellulose na-esitekarị na pulp osisi na owu efu.A na-akpụchasị akụkụ osisi ahụ ma na-enyocha ya iji wepụ ihe ọ bụla buru ibu, ebe a na-edozi ihe mkpofu owu ka ọ bụrụ ezigbo pulp.A na-ebelatakwa pulp n'ogo site n'igweri iji nweta ntụ ntụ dị mma.A na-agwakọta pulp osisi ntụ ntụ na owu mkpofu n'otu n'otu n'otu n'otu dabere na ihe achọrọ nke ngwaahịa ikpeazụ.
Nzọụkwụ na-esote gụnyere nhazi kemịkalụ nke nri nri agwakọta.A na-ebu ụzọ gwọọ pulp ahụ na ngwọta alkaline (na-abụkarị sodium hydroxide) iji kwatuo nhazi fibrous nke cellulose.A na-ejikwa ihe mgbaze dị ka carbon disulfide na-emepụta cellulose nke si na ya pụta.A na-eme ọgwụgwọ a na tankị nwere ihe na-aga n'ihu nke pulp.A na-ewepụ ihe ngwọta cellulose xanthate site na ngwaọrụ extrusion iji mepụta filaments.
Mgbe nke ahụ gasịrị, a na-atụgharị cellulose xanthate filaments n'ime bat nke nwere sulfuric acid dilute.Nke a na-ebute mmụgharị nke cellulose xanthate chains, na-akpụ eriri cellulose.A na-eji mmiri na-asa eriri cellulose ahụ e kpụpụtara ọhụrụ iji wepụ ihe ọ bụla adịghị ọcha tupu a sachaa ya.Usoro ịcha ọcha na-eji hydrogen peroxide mee ka eriri cellulose na-acha ọcha, nke a na-asacha na mmiri ma hapụ ya ka ọ kpọọ nkụ.
Mgbe a kpochapụrụ eriri cellulose, a na-eme usoro a na-akpọ etherification.Usoro etherification gụnyere iwebata otu ether, dị ka methyl, ethyl ma ọ bụ hydroxyethyl otu, n'ime eriri cellulose.A na-eme usoro ahụ site na iji mmeghachi omume nke onye na-ahụ maka etherification na onye na-emepụta acid na ọnụnọ nke ihe mgbaze.A na-eme mmeghachi omume n'okpuru ọnọdụ ejiri nlezianya na-achịkwa nke okpomọkụ na nrụgide iji hụ na mpụta ngwaahịa dị elu na ịdị ọcha.
N'oge a, cellulose ether dị n'ụdị ntụ ntụ ọcha.A na-edobe ngwaahịa emechara n'usoro ule njikwa mma iji hụ na ngwaahịa ahụ zutere mmasị na nkọwapụta achọrọ, dị ka viscosity, ịdị ọcha ngwaahịa na ọdịnaya mmiri.A na-achịkọta ya ma bufee ya na onye ọrụ njedebe.
N'ịchịkọta, usoro mmepụta nke cellulose ether gụnyere nkwadebe akụrụngwa, ọgwụgwọ kemịkalụ, spinning, bleaching na etherification, na-esote nyocha njikwa mma.Usoro dum chọrọ akụrụngwa pụrụ iche na ihe ọmụma nke mmeghachi omume kemịkalụ ma na-eme ya n'okpuru ọnọdụ a na-achịkwa nke ọma.Ịmepụta ethers cellulose bụ usoro dị mgbagwoju anya ma na-ewe oge, mana ọ dị mkpa n'ọtụtụ ụlọ ọrụ.
Oge nzipu: Jun-21-2023