ʻO ka sodium carboxymethyl cellulose (CMC)he carboxymethylated derivative o cellulose, i ʻike ʻia ʻo cellulose gum, a ʻo ia ka mea koʻikoʻi ionic cellulose gum. ʻO ka CMC ka mea maʻamau he pūhui polymer anionic i loaʻa ma ka hana ʻana i ka cellulose kūlohelohe me ka caustic alkali a me ka waikawa monochloroacetic. ʻO ke kaumaha molekala o ka hui pū ʻia mai nā ʻumi miliona a i nā miliona.
【Properties】 ʻO ka pauka keʻokeʻo, ʻaʻala ʻole, hiki ke hoʻoheheʻe ʻia i ka wai e hana i kahi hopena viscosity kiʻekiʻe, hiki ʻole ke hoʻoheheʻe ʻia i ka ethanol a me nā mea hoʻoheheʻe ʻē aʻe.
【Application】 Loaʻa iā ia nā hana o ka hoʻokuʻu ʻana a me ka emulsification, ka hui maikaʻi a me ka paʻakai paʻakai, a ua ʻike ʻia ʻo "monosodium glutamate industrial", i hoʻohana nui ʻia.
Hoʻomākaukau o CMC
Wahi a nā ʻano etherification ʻokoʻa, hiki ke hoʻokaʻawale ʻia ka hana ʻenehana o CMC i ʻelua mau ʻāpana: ke ʻano wai-wai a me ke ʻano solvent-based. ʻO ke ʻano o ka hoʻohana ʻana i ka wai e like me ke ʻano o ka hopena i kapa ʻia ʻo ke ʻano hana wai, i hoʻohana ʻia e hana i ka medium alkaline a me ka CMC haʻahaʻa haʻahaʻa; ke ʻano o ka hoʻohana ʻana i ka mea hoʻoheheʻe organik e like me ke ʻano o ka hopena i kapa ʻia ke ʻano solvent, kūpono ia no ka hana ʻana o ka CMC kiʻekiʻe a me ke kiʻekiʻe. Lawe ʻia kēia mau ʻano ʻelua i loko o kahi kneader, nona ke kaʻina kneading a ʻo ia ke ala nui no ka hana ʻana i ka CMC i kēia manawa.
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ʻano hana wai
ʻO ke kaʻina hana wai he kaʻina hana ʻoihana mua, ʻo ia ka pane ʻana i ka cellulose alkali me kahi mea etherifying i ke ʻano o ka alkali manuahi a me ka wai. I ka wā o ka alkalization a me ka etherification kaʻina, ʻaʻohe mea kūlohelohe i loko o ka ʻōnaehana. He mea maʻalahi nā mea pono o ke ʻano hana wai, me ka liʻiliʻi o ka hoʻopukapuka a me ke kumu kūʻai haʻahaʻa. ʻO ka hemahema ʻo ia ka nele o ka nui o ka wai wai, a ʻo ka wela i hana ʻia e ka hopena e hoʻonui i ka mahana, e hoʻonui i ka wikiwiki o nā hopena ʻaoʻao, e hopena i ka haʻahaʻa etherification maikaʻi a me ka maikaʻi ʻole o ka huahana. Hoʻohana ʻia kēia ʻano hana e hoʻomākaukau ai i nā huahana CMC waena a me ka haʻahaʻa, e like me nā detergents, textile sizing agents, etc.
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ʻano hoʻoheheʻe
Ua ʻike ʻia ke ʻano solvent me ke ʻano solvent organik. ʻO kāna hiʻohiʻona nui ʻo ia ka hoʻokō ʻana i ka alkaliization a me ka etherification reactions ma lalo o ke ʻano e hoʻohana ʻia ai ka mea hoʻoheheʻe organik e like me ke ʻano pane (diluent). E like me ka nui o ka hopena diluent, ua māhele ʻia i ke ʻano kneading a me ke ʻano slurry. ʻO ke ʻano o ka solvent ka mea like me ke kaʻina hana o ke kaʻina hana wai, a aia pū kekahi i ʻelua mau ʻanuʻu o ka alkalization a me ka etherification, akā ʻokoʻa ke ʻano pane o kēia mau pae ʻelua. Hoʻopau ke ʻano solvent i nā kaʻina hana i loko o ke ʻano o ka wai, e like me ka soking, squeezing, pulverizing, aging, etc., a me ka alkalization a me ka etherification i lawe ʻia i loko o kahi kneader. ʻO ka hemahema, ʻo ka mālama ʻana i ka mahana he mea ʻilihune, ʻoi aku ka nui o ke koi a me ke kumukūʻai. ʻOiaʻiʻo, no ka hana ʻana i nā hoʻonohonoho ʻokoʻa o nā lako, pono e hoʻomalu pono i ka mahana o ka ʻōnaehana, ka manawa hānai, a me nā mea ʻē aʻe, i hiki ke hoʻomākaukau ʻia nā huahana me ka maikaʻi a me ka hana. Hōʻike ʻia kāna papa kuhikuhi kaʻina hana ma ke Kiʻi 2.
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Kūlana o ka hoʻomākaukau ʻana i ka sodiumCarboxymethyl Cellulosemai nā huahana ʻoihana mahiʻai
Loaʻa nā hiʻohiʻona o nā ʻano like ʻole a me ka maʻalahi o nā huahana huaʻai, a hiki ke hoʻohana nui ʻia e like me nā mea maka no ka hoʻomākaukau ʻana i ka CMC. I kēia manawa, hoʻomaʻemaʻe nui ʻia ka cellulose i ka hana ʻana o CMC, me ka pulupulu pulupulu, ka pulupulu, ka pulupulu, ka pulupulu, ka ʻōpala palaoa, a me nā mea ʻē aʻe.
Outlook
Hiki ke hoʻohana ʻia ka sodium carboxymethyl cellulose e like me ka emulsifier, flocculant, thickener, chelating agent, wai-retaining agent, adhesive, sizing agent, film-forming material, etc. I kēia mau lā, ma lalo o ka hoʻolaha ākea o ka manaʻo o ka hana kemika ʻōmaʻomaʻo, noiʻi haole maCMCʻO ka ʻenehana hoʻomākaukau e kālele ana i ka ʻimi ʻana i nā kumu lāʻau ola maʻalahi a maʻalahi hoʻi a me nā ala hou no ka hoʻomaʻemaʻe CMC. Ma keʻano he'āina me nā waiwai mahiʻai nui, aia koʻu'āina i ka hoʻololi cellulose Ma keʻano o kaʻenehana, loaʻa iā ia nā mea maikaʻi o nā mea waiwai, akā, aia kekahi mau pilikia e like me ke kūlikeʻole i ka hana hoʻomākaukau i hanaʻia e nā kumu likeʻole o ka biomass cellulose fibers a me nāʻokoʻa nui o nā mea. Aia nō nā hemahema i ka lawa ʻana o ka hoʻohana ʻana i nā mea biomass, no laila pono e hoʻokō ʻia nā hana hou aʻe i kēia mau wahi.
Ka manawa hoʻouna: Apr-25-2024