Sodium carboxymethyl cellulose (CMC-Na maka nkenke) bụ ihe dị mkpa mmiri-soluble polymer compound, nke a na-ejikarị na nri, ọgwụ, ihe ntecha, textile, akwụkwọ na-ewu ụlọ ọrụ. Dị ka a na-ejikarị thickener, stabilizer na emulsifier.
1. Nhọrọ nke akụrụngwa na njikwa mma
Mgbe ị na-ahọrọ CMC-Na, ị kwesịrị ịṅa ntị na ịhọrọ ngwaahịa dị ọcha. Ngosipụta mma nke ngwaahịa ahụ gụnyere ogo ngbanwe, viscosity, ịdị ọcha na uru pH. Ogo nke nnọchi na-ezo aka na ọdịnaya nke otu carboxylmethyl na molekul CMC-Na. N'ozuzu, ọkwa dị elu nke nnọchi anya, ka mma solubility. Viscosity na-ekpebi nkwụsi ike nke ngwọta, na ọkwa viscosity kwesịrị ekwesị kwesịrị ịhọrọ dịka ihe ngwa ngwa chọrọ. Na mgbakwunye, hụ na ngwaahịa ahụ enweghị isi, enweghị ihe adịghị ọcha, ma zute ụkpụrụ ndị dị mkpa, dị ka ọkwa nri, ọkwa ọgwụ, wdg.
2. Mmiri dị mma chọrọ maka ịkwadebe ngwọta
Mgbe ị na-akwadebe ngwọta CMC-Na, ịdị mma nke mmiri eji eme ihe dị oke egwu. A na-achọkarị iji mmiri dị ọcha ma ọ bụ mmiri na-adịghị mma iji zere mmetụta nke adịghị ọcha na mmiri na ngwọta CMC-Na. Ihe adịghị ọcha dị ka ion ígwè na ions chloride na mmiri nwere ike imeghachi omume na CMC-Na, na-emetụta nkwụsi ike na arụmọrụ nke ngwọta.
3. Usoro mgbasa na usoro
Mgbasa nke CMC-Na bụ usoro dị nwayọ, nke na-adịkarị mkpa ka eme ya na usoro:
Tupu-wetting: Tupu ịtinye CMC-Na ntụ ntụ na mmiri, a na-atụ aro ka ị were obere ethanol, propylene glycol ma ọ bụ glycerol mee ya. Nke a na-enyere aka igbochi ntụ ntụ site na agglomerating n'oge usoro mgbasa na ịmepụta ngwọta na-enweghị isi.
Nri ngwa ngwa: Jiri nwayọọ tinye CMC-Na ntụ ntụ n'okpuru ọnọdụ mkpali. Gbalịa izere ịgbakwunye nnukwu ntụ ntụ n'otu oge iji zere ịmepụta lumps na ihe isi ike na-agbaze.
Ntugharị zuru oke: Mgbe ị gbakwunye ntụ ntụ, nọgide na-akpali ruo mgbe agbazere kpamkpam. Ọsọ na-akpali akpali ekwesịghị ịdị ngwa ngwa iji gbochie ọgbọ nke ọtụtụ egosipụta ma na-emetụta nghọta nke ngwọta.
Njikwa okpomọkụ: Ọnọdụ okpomọkụ n'oge usoro mgbasa nwere mmetụta ụfọdụ na ọnụego mgbasa. N'ikwu okwu n'ozuzu, okpomọkụ dị n'etiti 20 ° C na 60 Celsius C ka mma. Oke okpomọkụ nwere ike ime ka viscosity ngwọta belata na ọbụna mebie usoro nke CMC-Na.
4. Nchekwa na nkwụsi ike nke ngwọta
Ekwesịrị ịchekwa ihe ngwọta CMC-Na a kwadebere n'ime akpa mkpuchi ma zere kọntaktị na ikuku iji gbochie mmịpụta mmiri na oxidation. N'otu oge ahụ, a ga-ezere ìhè anyanwụ kpọmkwem na ọnọdụ okpomọkụ dị elu dị ka o kwere mee iji nọgide na-enwe nkwụsi ike nke ngwọta. N'oge nchekwa ogologo oge, ngwọta nwere ike ịka njọ n'ihi uto nke microorganisms, n'ihi ya, ị nwere ike ịtụle ịgbakwunye ihe nchekwa dị ka sodium benzoate na potassium sorbate mgbe ị na-akwadebe ya.
5. Iji na ọgwụgwọ ngwọta
Mgbe ị na-eji ngwọta CMC-Na, ị kwesịrị ịkpachara anya ka ị zere kọntaktị na acid siri ike na ntọala siri ike iji zere mmeghachi omume kemịkalụ nke na-emetụta nkwụsi ike na arụmọrụ nke ngwọta. Tụkwasị na nke ahụ, ngwọta CMC-Na na-akpasu iwe na akpụkpọ ahụ na anya ruo n'ókè ụfọdụ, n'ihi ya, ị kwesịrị iyi ihe nchebe kwesịrị ekwesị mgbe ị na-eji ya, dị ka uwe aka, goggles, wdg.
6. Nchekwa gburugburu ebe obibi na mkpofu mkpofu
Mgbe ị na-eji CMC-Na, ị kwesịrị ịṅa ntị na nchedo gburugburu ebe obibi nke ihe mkpofu. Ekwesịrị ijikwa ngwọta CMC-Na mkpofu n'ụzọ kwekọrọ n'ụkpụrụ dị mkpa iji zere mmetọ na gburugburu ebe obibi. Enwere ike ịgwọ ihe mkpofu site na biodegradation ma ọ bụ ọgwụgwọ kemịkal.
Mgbe ị na-akwadebe ngwọta sodium carboxymethyl cellulose, ọ dị mkpa iji nlezianya tụlee ma rụọ ọrụ site n'ọtụtụ akụkụ dị ka nhọrọ akụrụngwa, usoro mgbasa, ọnọdụ nchekwa na ọgwụgwọ gburugburu ebe obibi. Naanị n'okpuru nhazi nke njikwa siri ike nke njikọ ọ bụla nwere ike ime ihe ngwọta a kwadebere nke ọma na-arụ ọrụ nke ọma na nkwụsi ike iji gboo mkpa nke mpaghara ngwa dị iche iche.
Oge nzipu: Ọgọst-03-2024