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Mmetụta nke cellulose ether na-abanye n'ikuku

Anyị na-ewere iguzosi ike n'ezi ihe na mmeri nye onye meriri emeri dị ka ụkpụrụ ọrụ, anyị na-ejikwa njikwa na nlezianya siri ike na-emeso azụmaahịa ọ bụla.

Cellulose ethers bụ polima sịntetik e ji cellulose eke mee ma gbanwee ya na kemịkalụ. Cellulose ether bụ ihe sitere na cellulose eke. N'adịghị ka polima sịntetik, mmepụta cellulose ether dabere na cellulose, ihe kachasị mkpa, ihe mejupụtara polymer eke. N'ihi nkọwapụta nke usoro cellulose eke, cellulose n'onwe ya enweghị ike imeghachi omume na ihe ndị na-eme ka etherizing dị. Agbanyeghị, mgbe a gwọchara solubilizers, njikọ hydrogen siri ike dị n'etiti na n'ime agbụ molekul na-ebibi, a na-ewepụtakwa ọrụ otu hydroxyl n'ime alkali cellulose na ikike imeghachi omume, mgbe mmeghachi omume nke ihe na-eme ka etherizing dịghachi, a na-agbanwe otu OH ka ọ bụrụ otu OR iji nweta cellulose ether.

Cellulose ethers nwere mmetụta doro anya na-abanye n'ikuku n'ihe ndị e ji simenti agwakọtara ọhụrụ. Cellulose ethers nwere ma hydrophilic (hydroxyl, ether) na hydrophobic (methyl, glucose ring) otu ma bụrụ surfactants nwere ọrụ elu ma si otú a nwee mmetụta na-abanye n'ikuku. Mmetụta na-abanye n'ikuku nke cellulose ether ga-emepụta mmetụta "bọọlụ", nke nwere ike imeziwanye arụmọrụ ọrụ nke ihe ọhụrụ, dị ka ịbawanye plasticity na ire ụtọ nke moto n'oge ọrụ, nke bara uru maka mgbasa nke moto; ọ ga-emekwa ka mmepụta moto ka mma ma belata ọnụ ahịa mmepụta moto; agbanyeghị, ọ ga-eme ka porosity nke ihe siri ike dịkwuo elu ma belata ike ya na modulus na-agbanwe agbanwe, wdg. Njirimara igwe.
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Dịka ihe na-eme ka mmiri dị n'ime mmiri, cellulose ether nwekwara mmetụta mmiri mmiri ma ọ bụ mmanụ n'ahụ ihe ndị e ji simenti mee, nke ya na mmetụta ikuku ya na-eme ka mmiri dị n'ime ihe ndị e ji simenti mee ka mmiri dị n'ime mmiri dịkwuo elu, mana mmetụta ya na-eme ka mmiri dị n'ime mmiri belata, mmetụta nke cellulose ether na mmiri dị n'ime ihe ndị e ji simenti mee bụ njikọta nke mmetụta plastik na mmiri dị n'ime mmiri. N'ikwu ya n'ozuzu, mgbe ọnụọgụ cellulose ether dị obere nke ukwuu, ọ na-egosikarị mmetụta nke plastik ma ọ bụ mbelata mmiri; mgbe ọnụọgụ ahụ dị elu, mmetụta siri ike nke cellulose ether na-abawanye ngwa ngwa, mmetụta ya na-eme ka ikuku dị n'ime mmiri na-eme ka ọ ju, yabụ ọ na-egosi mmetụta siri ike ma ọ bụ na-eme ka mkpa mmiri dịkwuo elu.


Oge ozi: Eprel-24-2022