Nānā nui
ʻO ka cellulose he polymer maoli i haku ʻia me nā ʻāpana β-glucose anhydrous, a he ʻekolu mau pūʻulu hydroxyl ma kēlā me kēia apo kumu.Ma ka hoʻololi ʻana i ke kemika cellulose, hiki ke hana ʻia nā ʻano derivatives cellulose, a ʻo kekahi o lākou he cellulose ether.ʻO ka cellulose ether kahi hui polymer me kahi hale eter i loaʻa mai ka cellulose, me ka methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, a me nā mea ʻē aʻe.Hoʻopuka pinepine ʻia kēia mau mea hoʻoheheʻe ma o ka hoʻopili ʻana i ka cellulose alkali me ka monochloroalkane, ethylene oxide, propylene oxide, a i ʻole monochloroacetic acid.ʻO ka hopena o ka cellulose ether he wai hoʻoheheʻe maikaʻi loa, hiki ke mānoanoa, a me nā waiwai hana kiʻiʻoniʻoni, a hoʻohana nui ʻia i nā ʻoihana e like me ke kūkulu ʻana, nā lāʻau lapaʻau, nā meaʻai, a me nā mea hoʻonaninani.ʻO ka cellulose ether kahi mea hou, biodegradable, a me nā mea ʻawaʻawa ʻole, e lilo ia i mea koho kaulana i nā polymers synthetic.
Hana a me nā hiʻohiʻona
1. Nā hiʻohiʻona hiʻohiʻona
ʻO ka cellulose ether kahi pauka keʻokeʻo, ʻaʻala ʻole, fibrous e hoʻopaʻa maʻalahi i ka makū a hana i kahi colloid paʻa, viscous, akaka ke hoʻoheheʻe ʻia i ka wai.
2. Hoʻokumu kiʻiʻoniʻoni a hoʻopili
ʻO ka hoʻololi kemika o ka cellulose e hana i ka cellulose ether e hoʻopilikia nui i kona mau waiwai, me kona solubility, hiki ke hana kiʻiʻoniʻoni, ikaika paʻa, a me ke kūpaʻa paʻakai.ʻO kēia mau hiʻohiʻona e hana i ka cellulose ether he polymer makemake nui me ka ikaika mechanical maikaʻi loa, ka maʻalahi, ka pale wela, a me ke kū anuanu.Hoʻohui ia, hōʻike ia i ka hoʻohālikelike maikaʻi me nā resins a me nā plasticizers, kūpono ia no ka hoʻohana ʻana i ka hana ʻana i nā plastics, nā kiʻiʻoniʻoni, nā varnish, adhesives, latex, a me nā mea uhi lāʻau.Ma muli o kāna mau waiwai nui, ua lilo ka cellulose ether i mea koʻikoʻi i ka ʻoihana hana, e hāʻawi ana i ka hoʻomaikaʻi ʻana i ka hana, kūpaʻa, a me ka lōʻihi o ka nui o nā huahana.ʻO ka hopena, loaʻa iā ia ka laulā o nā noi ma nā ʻano ʻano like ʻole, me nā lāʻau lapaʻau, nā uhi, nā textiles, ke kūkulu ʻana, a me nā ʻoihana meaʻai, a me nā mea ʻē aʻe.
3. Ka hikiwawe
ʻO ka solubility o cellulose ethers e like me methylcellulose, methyl hydroxyethyl cellulose, hydroxyethyl cellulose, a me ka sodium carboxymethyl hydroxyethyl cellulose e like me ka mahana a me ka solvent i hoʻohana ʻia.Hiki ke hoʻoheheʻe ʻia ka Methylcellulose a me ka methyl hydroxyethyl cellulose i loko o ka wai anuanu a me kekahi mau mea hoʻoheheʻe kūlohelohe akā e hoʻoheheʻe ʻia ke hoʻomehana ʻia, me ka methylcellulose e kahe ana ma 45-60°C a me ka methyl hydroxyethyl cellulose i hui ʻia ma 65-80°C.Eia naʻe, hiki ke hoʻoheheʻe hou ʻia nā precipitates ke hoʻohaʻahaʻa ʻia ka mahana.Ma ka ʻaoʻao ʻē aʻe, ʻo ka hydroxyethyl cellulose a me ka sodium carboxymethyl hydroxyethyl cellulose he wai-soluble i kēlā me kēia mahana akā hiki ʻole ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik.ʻO kēia mau cellulose ethers he ʻokoʻa ka solubility a me nā waiwai ua kūpono iā lākou no nā noi like ʻole i nā ʻoihana e like me nā plastics, nā kiʻiʻoniʻoni, nā uhi, a me nā adhesives.
4. Mānoanoa
Ke hoʻoheheʻe ʻia ka cellulose ether i ka wai, hana ia i kahi hopena colloidal nona ka viscosity i hoʻopili ʻia e ke degere o ka polymerization o ka cellulose ether.Aia i loko o ka ha'ina nā macromolecules hydrated e hō'ike ana i ke 'ano non-Newtonian, 'o ia ho'i, ho'ololi ke 'ano kahe me ka ikaika shear i ho'ohana 'ia.Ma muli o ke ʻano macromolecular, piʻi wikiwiki ka viscosity o ka hopena me ka neʻe ʻana, akā e emi wikiwiki me ka piʻi ʻana o ka mahana.Hoʻopili ʻia ka viscosity o cellulose ether solution e ka pH, ka ikaika ionic, a me ke alo o nā mea kemika ʻē aʻe.ʻO kēia mau waiwai kūʻokoʻa o ka cellulose ether e hoʻohana pono i nā noi like ʻole e like me nā adhesives, coatings, cosmetics, a me nā huahana meaʻai.
Palapala noi
1. ʻOihana Aila
ʻO ka sodium carboxymethyl cellulose (NaCMC) he cellulose ether me kahi ākea o nā noi i ka hana ʻaila.ʻO kāna mau waiwai hoʻonui viscosity maikaʻi a me ka hoʻohaʻahaʻa ʻana i ka wai e lilo ia i mea koho kaulana i ka ʻeli ʻana i nā wai, nā wai cementing, a me nā wai haki.ʻO ka mea kūikawā, ua hōʻike ia i nā hopena hoʻohiki i ka hoʻomaikaʻi ʻana i ka hoʻihoʻi ʻana i ka aila.Hiki i ka NaCMC ke pale aku i ka haumia paʻakai hiki ke hoʻoheheʻe ʻia a hoʻonui i ka hoʻihoʻi ʻana o ka ʻaila ma ka hōʻemi ʻana i ka nalowale o ka wai, a ʻo kona kūpaʻa paʻakai a me ka hiki ke hoʻonui i ka viscosity i mea kūpono no ka hoʻomākaukau ʻana i nā wai wili no ka wai hou, ka wai kai, a me ka wai paʻakai piha.
ʻO ka sodium carboxymethyl hydroxypropyl cellulose (NaCMHPC) a me ka sodium carboxymethyl hydroxyethyl cellulose (NaCMHEC) he ʻelua cellulose ether derivatives me ka nui o ka slurrying kiʻekiʻe, ka hana anti-calcium maikaʻi, a me ka hiki ke hoʻonui i ka viscosity maikaʻi, e hoʻolilo iā lākou i koho maikaʻi loa e like me ka wili ʻana i nā mea lapaʻau lepo a me nā mea waiwai. hoʻomākaukau i nā wai hoʻopau.Hōʻike lākou i ka hiki ke hoʻonui i ka viscosity a me ka hoʻohaʻahaʻa ʻana o ka wai i nā waiwai i hoʻohālikelike ʻia me ka hydroxyethyl cellulose, a me ko lākou hiki ke hoʻopili ʻia i loko o nā wai wili o nā ʻano like ʻole ma lalo o ke kaumaha o ka calcium chloride e lilo lākou i mea hoʻohui versatile no ka hoʻonui ʻana i ka ʻaila.
ʻO ka Hydroxyethyl cellulose (HEC) kekahi mea hoʻohana cellulose i hoʻohana ʻia ma ke ʻano he mea hoʻopaʻa i ka lepo a hoʻopaʻa i ka hana ʻana, hoʻopau, a me ke kaʻina hana sima.Ke hoʻohālikelike ʻia me ka sodium carboxymethyl cellulose a me ka guar gum, HEC ikaika ka hoʻokuʻu ʻana i ke one, kiʻekiʻe ka paʻakai paʻakai, maikaʻi ka pale ʻana i ka wela, haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, liʻiliʻi ka liʻiliʻi o ka wai, a me ka pahu haki gel.Ua hoʻohana nui ʻia ʻo HEC ma muli o kona hopena mānoanoa maikaʻi, koena haʻahaʻa, a me nā waiwai ʻē aʻe.Ma ke ʻano holoʻokoʻa, hoʻokani nā cellulose ethers e like me NaCMC, NaCMHPC, NaCMHEC, a me HEC i nā hana koʻikoʻi i ke kaʻina hana ʻaila a ua hōʻike i ka mana nui i ka hoʻomaikaʻi ʻana i ka ʻaila.
2. Hana Hana a Pena
ʻO ka sodium carboxymethyl cellulose kahi mea hoʻohui hale kūkulu nui i hiki ke hoʻohana ʻia e like me ka retarder, ka mea mālama wai, ka mānoanoa a me ka binder no ke kūkulu ʻana i ka masonry a me ka plastering mortar.Hiki ke hoʻohana ʻia ma ke ʻano he dispersant, ka mea mālama wai a me ka mānoanoa no ka plaster, mortar a me nā mea pae honua.Hiki ke hoʻomaikaʻi i ka hana hana, ka paʻa ʻana o ka wai a me ke kūʻē ʻana i ka paʻi ʻana i ka masonry kūikawā a me ka plastering mortar admixture i hana ʻia me ka carboxymethyl cellulose.Eia kekahi, hiki ke hoʻohana ʻia ka methyl cellulose e hana i nā mea hoʻonaninani o ka hale no ka pā kiʻekiʻe kiʻekiʻe a me nā papa pōhaku pōhaku, a me ka hoʻonani ʻana o nā kolamu a me nā monuments.
3. ʻOihana Kemika o kēlā me kēia lā
ʻO Sodium carboxymethyl cellulose kahi viscosifier stabilizing versatile hiki ke hoʻohana ʻia i nā huahana like ʻole.I loko o nā huahana paʻi i loaʻa nā mea waiwai paʻa paʻa, hoʻokani ia i ka hana koʻikoʻi i ka hoʻopuehu ʻana a me ka hoʻomaha hoʻomaha.No ka wai a i ʻole emulsion cosmetics, hana ia e like me ka mānoanoa, dispersing, a me ka homogenizing agent.Hiki i kēia derivative cellulose ke hana ma ke ʻano he emulsion stabilizer, ka ʻaila a me ka shampoo mānoanoa a me ka stabilizer, toothpaste adhesive stabilizer, a me ka mea hoʻomaʻemaʻe hoʻomaʻemaʻe a me ka anti-stain agent.Hoʻohana nui ʻia ʻo Sodium carboxymethyl hydroxypropyl cellulose, kahi ʻano cellulose ether, ma ke ʻano he toothpaste stabilizer ma muli o kāna mau waiwai thixotropic, e kōkua ana i ka mālama ʻana i ka toothpaste formability a me ke kūlike.ʻO kēia derivative ka mea kū'ē i ka paʻakai a me ka waikawa, e hana ana i mea mānoanoa maikaʻi i nā mea holoi a me nā mea anti-stain.Hoʻohana mau ʻia ka sodium carboxymethyl cellulose ma ke ʻano he dispersant lepo, thickener, a me dispersant i ka hana ʻana i ka pauka holoi a me nā mea holoi wai.
4. ʻOihana Lapaʻau a me ka Meaʻai
I ka ʻoihana lāʻau lapaʻau, hoʻohana nui ʻia ʻo Yibang hydroxypropyl carboxymethylcellulose (HPMC) ma ke ʻano he lāʻau lapaʻau no ka hoʻokuʻu ʻana i ka lāʻau lapaʻau waha a me nā hoʻomākaukau hoʻokuʻu mau.Hana ia ma ke ʻano he mea hoʻokuʻu hoʻokuʻu e hoʻoponopono i ka hoʻokuʻu ʻana o nā lāʻau lapaʻau, a ma ke ʻano he mea uhi e hoʻopaneʻe ai i ka hoʻokuʻu ʻana o nā ʻano hana.Hoʻohana mau ʻia ka methyl carboxymethyl cellulose a me ka ethyl carboxymethyl cellulose no ka hana ʻana i nā papa a me nā capsules, a i ʻole e uhi i nā papa i uhi ʻia i ke kō.I ka ʻoihana meaʻai, ʻo ka premium grade cellulose ethers he mau mānoanoa kūpono, stabilizers, excipients, wai hoʻopaʻa wai a me nā mea hoʻoheheʻe mechanical i nā meaʻai like ʻole.ʻO ka Methylcellulose a me ka hydroxypropylmethylcellulose i manaʻo ʻia he metabolically inert a palekana no ka ʻai ʻana.Hiki ke hoʻohui ʻia ka carboxymethylcellulose maʻemaʻe kiʻekiʻe i nā huahana meaʻai, me ka waiū a me ka cream, condiments, jams, jelly, canned food, table syrup, a me nā mea inu.Hoʻohui, hiki ke hoʻohana ʻia ka carboxymethyl cellulose i ka lawe ʻana a me ka mālama ʻana i nā huaʻai hou e like me ke kāwele palaki, e hāʻawi ana i kahi hopena mālama hou, liʻiliʻi ka pollution, ʻaʻohe pōʻino, a me ka hana mīkini maʻalahi.
5. Nā Mea Hana Hana Optical a Uila
ʻO ka cellulose ether maʻemaʻe kiʻekiʻe me ka waika maikaʻi a me ka paʻakai paʻakai e hana ma ke ʻano he electrolyte thickening stabilizer, e hāʻawi ana i nā waiwai colloidal paʻa no nā pā alkaline a me ka zinc-manganese.Ke hōʻike nei kekahi mau cellulose ethers i ka crystallinity wai thermotropic, e like me ka hydroxypropyl cellulose acetate, e hana ana i nā kristal wai cholesteric ma lalo o 164°C.
Kuhikuhi Nui
● Hua'ōlelo o nā mea kemika.
● Nā hiʻohiʻona, ka hoʻomākaukau ʻana a me ka noi ʻana o ka cellulose ether.
● Kūlana Kūlana a me ka ulu ʻana o ka mākeke Cellulose Ether.
