1. Molecular Architecture a me Colloidal Basics of Ultrafine Zinc Stearate Emulsions
1.1 Nā Hana Hana Hana Kinohi a me Surfactant o Zinc Stearate
(Nā Emulsions Ultrafine Zinc Stearate)
Zinc stearate, wehewehe kemika e like me ka zinc bis(octadecanoate) [ʻO Zn(C ₁₇ H ₃₅ COO)₂], he hui organometallic i ʻike ʻia he kopa kila, hoʻomohala ʻia e ka pane ʻana o ka waikawa stearic– he momona kaulahao loloa piha– me ka zinc oxide a i ʻole nā paʻakai zinc.
I kona ʻano ikaika, hana ia e like me ka hydrophobic lube a me ka wehe 'elele, akā naʻe i ka hoʻomaʻemaʻe pono ʻana i kahi emulsion ultrafine, piʻi nui kona ikehu ma muli o ka hoʻonui ʻana i ka dispersibility a me ka hana interfacial.
He polar ka ʻāpana, hui poʻo ionic zinc-loaʻa a 2 huelo alkyl hydrophobic lōʻihi, ka hāʻawi ʻana i nā ʻano amphiphilic e hiki ai ke hana ma ke ʻano he mea lubricating i loko, mea pale wai, a me ka mea hoʻololi ili i nā ʻōnaehana mea like ʻole.
I nā hāʻina wai, ʻAʻole hoʻoheheʻe ʻia ka zinc stearate akā hana ia i nā dispersion colloidal paʻa kahi i hoʻopaʻa ʻia nā ʻāpana submicron e nā surfactants a i ʻole polymeric dispersants me ka hōʻiliʻili ʻana..
ʻO ka “ultrafine” Hōʻike ka inoa i nā ʻāpana droplet a i ʻole nā ʻāpana i helu ʻia ma lalo nei 200 nanometer, pinepine i nā ʻano like ʻole o 50– 150 nm, ka mea e hoʻonui nui i ka ʻāpana kikoʻī a me ka naʻau o ka pae hoʻolaha.
He mea koʻikoʻi kēia dispersion nanoscale no ka loaʻa ʻana o ka hāʻawi like ʻana i nā matrices paʻakikī e like me ka polymer thaws., nā papa, a me nā ʻōnaehana sima, kahi e hoʻopilikia maoli ai nā agglomerates macroscopic i ka pono.
1.2 Nā ʻōnaehana hoʻoponopono a me ka hoʻoponopono ʻana
ʻO ka hoʻomākaukau ʻana i nā emulsions ultrafine zinc stearate e pili ana i nā hoʻolālā dispersion kiʻekiʻe e like me ka homogenization kiʻekiʻe., kani ultrasonic, a i ʻole ka microfluidization, ʻo ia ka mea e uhaʻi i nā ʻāpana koʻikoʻi i loko o nā inoa kikowaena nanoscale i loko o kahi pae wai mau.
E ho'ōki i ka coalescence a me ka oʻo ʻana o Ostwald– nā kaʻina hana e hoʻopau i nā colloids– nā mea hoʻokuʻu nonionic a i ʻole anionic (e.g., nā waiʻona ethoxylated, paʻakai dodecyl sulfate) Hoʻohana ʻia e hoʻemi i ka ʻāʻī o ka interfacial a hāʻawi i ka electrostatic a i ʻole steric stablizing.
He mea koʻikoʻi ke koho ʻana i ka emulsifier: pono e hana me ka hoʻonohonoho noi i manaʻo ʻia, ka pale ʻana i ka haunaele me nā kaʻina hana i lalo e like me ka ho'ōla polymer a i ʻole ka hoʻonohonoho ʻana i ke kaʻa.
Kahi mea hou aʻe, Hiki ke hōʻike ʻia nā co-emulsifiers a i ʻole cosolvents e hoʻomaikaʻi i ke koena hydrophilic-lipophilic. (HLB) o ka ʻōnaehana, e hōʻoia i ka palekana colloidal mau loa ma lalo o ka pH like ʻole, mahana wela, a me nā pilikia ʻoʻoleʻa ionic.
ʻO ka emulsion ka hopena he keʻokeʻo keʻokeʻo, haʻahaʻa-viscosity, a maʻalahi hiki ke hui pū ʻia me nā ʻano wai, hiki i ka hoʻohui pono ʻana i nā laina hana pāʻoihana me ka ʻole o nā lako hana maʻamau.
( Nā Emulsions Ultrafine Zinc Stearate)
Hiki ke hoʻopaʻa paʻa nā hopena ultrafine i hana ʻia no nā mahina, kū'ē i ka hoʻokaʻawale māhele, sedimentation, a i ʻole ka gelation, He mea koʻikoʻi ia no ka hana mau ʻana i ka hana nui.
2. Hoʻoponopono i nā ʻenehana a me ka Mana Bit Size
2.1 Nā Kūlana Kūlana Kiʻekiʻe-Energy Dispersion a me Nanoemulsification
ʻO ka hoʻokō ʻana a me ka mālama ʻana i ka nui o nā ʻāpana ultrafine pono i ka mana pololei ma luna o ka mana hoʻokomo a me nā kikoʻī kaʻina hana i ka wā emulsification.
Hoʻohana ʻia nā homogenizers kiʻekiʻe ma ke koʻikoʻi 1000 pā, e koi ana i ka pre-emulsion ma o nā puka lohi kahi e ʻoki ikaika ai, cavitation, a me nā ʻāpana hoʻohaunaele i loko pono o ka array nanometer.
Hoʻopuka nā mea hana kani kani i ka cavitation acoustic i ka mea hana wai, ka hana ʻana i nā nalu haʻalulu kūloko e hoʻohaʻahaʻa i nā aggregates a hoʻolaha i ka holo ʻana o ka kulu.
Microfluidization, he holomua hou, hoʻohana i nā microchannels-geometry paʻa no ka hoʻomohala ʻana i nā wahi ʻoki like, hiki ke ho'ēmi i ka nui bit reproducible me nā haiki polydispersity index (PDI < 0.2).
ʻAʻole wale kēia mau ʻenehana i ka liʻiliʻi liʻiliʻi akā hoʻonui i ka crystallinity a me ka like ʻana o ka ʻili o nā ʻāpana zinc stearate., e pili ana i kā lākou hana hoʻoheheʻe ʻana a me ka launa pū ʻana me nā mea hoʻokipa.
Hiki ke hoʻohana ʻia nā ʻanuʻu ma hope o ka hoʻoponopono ʻana e like me ka hoʻomaʻemaʻe ʻana e hoʻopau i nā ʻano ʻano o nā ʻāpana koʻikoʻi, ka hana like ʻana i kekahi mau mea a pale aku i nā pilikia ma nā noi maʻalahi e like me nā uhi kiʻiʻoniʻoni lahilahi a i ʻole ka hoʻoheheʻe ʻana.
2.2 Nā ʻano hōʻoia a me nā ana hōʻoia maikaʻi
Hoʻopili pololei ʻia ka maikaʻi o ka ultrafine zinc stearate emulsions i ko lākou mau hale kino a me ka colloidal, pono ana i ka hana analytical ikaika.
Hoʻopuʻi māmā māmā (DLS) Hoʻohana mau ʻia e ana i ke anawaena hydrodynamic a me ka puʻunaue nui, ʻoiai ʻo ka nānā ʻana i ka hiki ʻana o zeta e nānā i ke kūpaʻa colloidal– nā waiwai ma mua o ± 30 Hōʻike maʻamau ka mV i ka hoʻopaʻa electrostatic maikaʻi.
Microscopy electron hoʻouna (TEM) a i ʻole microscopy puʻe atomika (AFM) Hāʻawi i ka ʻike pololei o ka mopology ʻāpana a me ka maikaʻi diffusion.
ʻO nā ʻenehana loiloi wela e like me ka calorimetry scanning differential (DSC) e hoʻoholo i ka mea hoʻoheheʻe (~ 120– 130 ° C) a me ka helu hoʻohaʻahaʻa wela, he mea koʻikoʻi ia no nā noi e pili ana i ka hana wela kiʻekiʻe.
Eia hou, hoʻāʻo palekana ma lalo o nā pilikia i hoʻonui ʻia (ka wela kiʻekiʻe, nā pōʻai maloʻo maloʻo) e hōʻoiaʻiʻo i ke ola a me ka paʻa i ka wā o ka lawe ʻana a me ka waiho ʻana.
Nānā pū nā mea kūʻai aku i ka pono kūpono me nā hoʻokolohua kikoʻī noiʻi, e like me ke ana o ke kihi pahee no ka lubricity, ka huina pili wai no ka hydrophobicity, a i ʻole ka like ʻana o ka diffusion i nā hui polymer.
3. Nā Hana Pono a me nā Mea Pono i nā Lako Hana Hana
3.1 ʻO ka Lubrication Loko a me waho i ka lawelawe ʻana i ka polymer
I loko o ka plastics a me ka hana ʻana i ka lāʻau, ʻO nā emulsions ultrafine zinc stearate e hana maikaʻi loa i loko a me waho.
Ke hoʻokomo ʻia i loko o ka polymer melts (e.g., PVC, polyolefins, polystyrene), ke neʻe nei nā nanoparticles i nā pilina, e hōʻemi ana i ka viscosity hehee a me ka friction ma waena o nā kaulahao polymer a me nā mea hana.
Hoʻemi kēia i ka hoʻohana ʻana i ka ikehu i ka wā extrusion a me ka hoʻoheheʻe ʻana i ka pana, hoemi make buildup, a hoʻonui i ka pau ʻana o ka ʻili o nā ʻāpana i hoʻoheheʻe ʻia.
Ma muli o ko lākou nui liʻiliʻi, ʻoi aku ka maikaʻi o nā ʻāpana ultrafine ma mua o ka pauka zinc stearate, ka pale ʻana i nā ʻāpana waiwai nui o ka lubricant i hiki ke hōʻino i nā hale mechanical.
Hana pū lākou ma ke ʻano he mau ʻelele hoʻokuʻu waho, hana ana i ka lahilahi, kiʻiʻoniʻoni lāʻau ʻole ma luna o ka ʻeleʻele a me ka lepo e kōkua ana i ka hoʻokuʻu ʻana i kahi ʻāpana me ka ʻole o ka hōʻiliʻili kālā.
Hoʻonui kēia mana pālua i ka pono hana a me ka maikaʻi o nā mea i nā lewa hana kiʻekiʻe.
3.2 Paʻa wai, Anti-Caking, a me nā hopena o ka hoʻololi ʻana i ka ʻāpana o ka ʻili
Lubrication i hala, Hāʻawi kēia mau mea hoʻonā i ka hydrophobicity i nā pauka, hoopau ana, a me na mea kukulu hale.
Ke kau ʻia ma ka sima, nā puaʻa, a i ʻole nā pauka lāʻau lapaʻau, hana ka zinc stearate i kahi nano-coating e hoʻokuke aku i ka pulu, ka pale ʻana i ka caking a me ka hoʻonui ʻana i ka kahe i ka wā o ka mālama ʻana a me ka lawelawe ʻana.
I ke kūkulu ʻana i nā uhi a me nā hoʻololi, ʻO ka hoʻohui ʻana o ka emulsion e hoʻomaikaʻi i ka pale wai, ka hoemi ana i ka wai a me ka hooikaika ana i ka paa a me ka ino a me ka hau.
Hoʻokomo ka ʻōnaehana i ka hoʻonohonoho ʻana o nā ʻāpana stearate ma nā pilina, me nā huelo hydrophobic i hōʻike ʻia i ka hoʻonohonoho, ka hana ʻana i kahi ʻili haʻahaʻa haʻahaʻa e kū i ka pulu.
Eia kekahi, i nā huahana hui, Hiki i ka zinc stearate ke hoʻololi i nā kamaʻilio filler-matrix, ka hoʻomaikaʻi ʻana i ka hoʻopuehu ʻana o nā mea hoʻopiha inorganic e like me ka calcium carbonate a i ʻole talc i nā matrices polymer.
Hoʻemi kēia hoʻohālikelike interfacial i ka jumble a hoʻomaikaʻi i ka pono mechanical, ʻoi aku ka ikaika a me ka hoʻolōʻihi i ka wā hoʻomaha.
4. Nā Lahui Noi a me nā Kūlana ʻenehana e puka mai ana
4.1 Na Lako Hana a me na Lako Sima
Ma ka mākeke kūkulu hale, Hoʻohana mau ʻia nā ʻano hoʻonā zinc stearate ultrafine e like me nā admixture hydrophobic i loko o ke koneki, moka, a me ka hamo.
Hoʻemi lākou i ka lawe ʻana i ka wai capillary me ka hoʻoweliweli ʻole i ka ikaika compressive, no laila e hoʻomaikaʻi i ke kū'ē i ka chloride komo, hoʻouka kaua sulfate, a me ka ʻōpala i hoʻokomo ʻia i ka carbonation o ke kila hoʻonui.
ʻAʻole like me nā hui kuʻuna e pili ana i ka hoʻokumu ʻana i ka manawa a i ʻole ka ea entrainment, ʻAʻole keʻakeʻa i ka hoʻoheheʻe ʻana o ka sima..
ʻO kā lākou nanoscale dispersion e hōʻoiaʻiʻo i ka palekana like ʻole ma ka matrix, ʻoiai ma ka hoʻemi ʻia ʻana (maʻa mau 0.5– 2% ma ke kaumaha o ke koki).
ʻO kēia ka mea i maikaʻi loa iā lākou no nā hana ʻenehana ma kahakai a i ʻole nā wahi haʻahaʻa kiʻekiʻe kahi e koʻikoʻi ai ka paʻakikī lōʻihi..
4.2 Hana Hou, Nā mea hoʻonaninani, a me nā Nanocomposites
I ka hana hou, Hoʻohana ʻia kēia mau hopena i nā pauka paʻi 3D e hoʻomaikaʻi i ke kahe a hoʻemi i ke kiʻekiʻe o ka naʻau..
I nā mea hoʻonaninani a me nā mea lapaʻau pilikino, hana lākou ma ke ʻano he mea hoʻololi i nā hiʻohiʻona a me nā mea wai wai i nā kumu, lipsticks, a me nā pale lā, hāʻawi i kahi manaʻo momona ʻole a hoʻonui i ka hoʻolaha.
Hoʻohana ʻia nā noi e puka mai ana i nā ʻōnaehana pale ahi, kahi e hana ai ka zinc stearate ma ke ʻano he synergist ma ka hoʻolaha ʻana i ka hoʻomohala ʻana o ka char i nā matrices polymer, a i loko o ka hoʻomaʻemaʻe ponoʻī i nā wahi ili e hoʻohui i ka hydrophobicity me ka hana photocatalytic.
Ke ʻimi nei hoʻi ka noiʻi noiʻi ʻana i kā lākou hui ʻana i nā hoʻopau akamai e pane i ka hoʻoulu ʻana i ka kaiaola, e like me ka haʻahaʻa a me ka hopohopo mechanical.
Ma ka hōʻuluʻulu, Hōʻike ka ultrafine zinc stearate solutions i ka hoʻololi ʻana o ka hoʻolālā colloidal i kahi mea hoʻohui maʻamau i kahi huahana pono kiʻekiʻe..
Ma ka hoʻemi ʻana i ka ʻāpana ʻāpana i ka nanoscale a me ke kākoʻo ʻana iā ia i ka hoʻoheheʻe wai, Loaʻa kēia mau ʻōnaehana i ka like like ʻole, ka naʻau, a me ka launa pū ʻana ma kahi ākea o nā noi pāʻoihana.
E like me ka pono no ka pono, kūpaʻa, a ulu ka hoʻomau, E hoʻomau ka hana koʻikoʻi o ka ultrafine zinc stearate solutions i mea e hiki ai i nā mea hana a me nā kaʻina hana..
5. Mea hoolaha
ʻO RBOSCCHO kahi mea hoʻolako mea hoʻolako kemika honua & mea hana me ka oi 12 mau makahiki i ka hoʻolako ʻana i nā kemika kiʻekiʻe kiʻekiʻe a me nā Nanomaterials. Hoʻokuʻu aku ka hui i nā ʻāina he nui, e like me USA, Kanaka, ʻEulopa, UAE, ʻApelika Hema, Tanazania, Kenia, ʻAikupita, Naigeria, Kameruna, Ukanada, Kuleke, Mekiko, ʻAkepaikana, Pelekiuma, Kupelo, Czech Republic, Palakila, Kili, ʻAlekina, Dubai, Iapana, Korea, Wiekanama, Tailani, Malaia, ʻInidonesia, Nuhōlani,Kelemānia, Palani, Ikalia, Pokukala etc. Ma ke ʻano he mea hana hoʻomohala nanotechnology alakaʻi, ʻO RBOSCHCO ka luna o ka mākeke. Hāʻawi kā mākou hui hana ʻoihana i nā hāʻina kūpono e kōkua i ka hoʻomaikaʻi ʻana i ka pono o nā ʻoihana like ʻole, hana waiwai, a maʻalahi hoʻi i nā pilikia like ʻole. Inā ʻoe e ʻimi nei zinc stearate, e ʻoluʻolu e hoʻouna i leka uila iā: [email protected]
Nā huaʻōlelo: Ultrafine zinc stearate, zinc stearate, emulsion o ka zinc stearate
ʻO nā ʻatikala a me nā kiʻi a pau mai ka Pūnaewele. Inā loaʻa kekahi pilikia kope, e ʻoluʻolu e kelepona mai iā mākou i ka manawa e holoi ai.
E nīnau iā mākou