Hydroxypropyl methyl cellulose (HPMC) viscosity no ka lole Skim?
- pane: He maikaʻi ka ʻaʻahu Skim maʻamau HPMC 100000cps, ʻoi aku ka lōʻihi o ke koi i ka mortar, makemake 150000cps hiki ke hoʻohana. Eia kekahi, ʻo HPMC ka hana koʻikoʻi o ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa. I ka lole Skim, ʻoiai ka maikaʻi o ka paʻa ʻana o ka wai, haʻahaʻa ka viscosity (7-80000), hiki nō hoʻi, ʻoiaʻiʻo, ʻoi aku ka nui o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, ke ʻoi aku ka viscosity ma mua o 100 tausani, ʻaʻole nui ka viscosity o ka mālama ʻana i ka wai.
He aha nā hōʻailona ʻenehana nui o ka hydroxypropyl methyl cellulose (HPMC)?
Pane: Hydroxypropyl content and viscosity, ka hapanui o nā mea hoʻohana e mālama i kēia mau hōʻailona ʻelua. He kiʻekiʻe ka ʻike hydroxypropyl, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai. ʻOi aku ka maikaʻi o ka viscosity, ka paʻa ʻana o ka wai, pili (akā ʻaʻole paʻa), a ʻoi aku ka maikaʻi o ka viscosity, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i kekahi.
Hydroxypropyl methyl cellulose (HPMC) he aha nā mea waiwai nui?
Pane: hydroxypropyl methyl cellulose (HPMC) mau mea nui: pulupulu hoʻomaʻemaʻe, chloromethane, propylene oxide, nā mea waiwai ʻē aʻe, papa alkali, acid, toluene, isopropyl alcohol a pēlā aku.
HPMC i Skim kapa i loko o ka palapala noi, i ka hana nui, ina paha kemika?
Pane: HPMC i ka lole Skim, mānoanoa, wai a me ke kūkulu ʻana i ʻekolu kuleana. Mānoanoa: hiki ke mānoanoa ka cellulose a hiki i ka hoʻokuʻu ʻia ʻana, i hoʻopaʻa ʻia ka hopena i luna a i lalo i ke ʻano o ke kau ʻana i ka anti-flow. Paʻa wai: e hoʻomaloʻo mālie i ka lole Skim, kōkua i ka calcium hina hina i ka hana o ka wai. Hana: cellulose lubrication, hiki ke hana i ka lole Skim i hana maikaʻi. ʻAʻole komo ʻo HPMC i nā hopena kemika, akā he kuleana kākoʻo wale nō. ʻO ka lole Skim a me ka wai, ma ka paia, he hopena kemika, no ka hana ʻana o nā mea hou, ʻo ka paia o ka lole Skim i lalo mai ka paia, lepo i ka pauka, a laila hoʻohana, ʻaʻole maikaʻi, no ka mea ua hana ʻia kahi mea hou. (calcium carbonate). ʻO nā mea nui o ka pauka calcium hina: Ca(OH)2, CaO a me kahi mea liʻiliʻi o ka hui ʻana o CaCO3, CaO+H2O=Ca(OH)2 – Ca(OH)2+CO2=CaCO3↓+H2O hina calcium i loko o ka wai. a me ka ea ma lalo o ka hana o CO2, ka hookumu ana o ka calcium carbonate, a me ka HPMC wale ka wai, auxiliary hina calcium maikaʻi pane, kona iho 'aʻole i komo i kekahi pane.
ʻO ka HPMC he cellulose ether non-ionic, no laila he aha ka non-ionic?
A: ʻO ka ʻōlelo maʻamau, ʻo nā non-ions he mau mea ionize ʻole i ka wai. ʻO ka Ionization ka hoʻokaʻawale ʻana o kahi electrolyte i loko o nā ion i hoʻopaʻa ʻia i loko o kahi solvent kikoʻī, e like me ka wai a i ʻole ka waiʻona. No ka laʻana, ʻo ka paʻakai a mākou e ʻai ai i kēlā me kēia lā - ka sodium chloride (NaCl) e hoʻoheheʻe ʻia i ka wai a ionizes e hana i nā ion sodium neʻe manuahi (Na+) me ka uku kūpono a me nā ion chloride (Cl) me ka hoʻopiʻi ʻino. ʻO ia hoʻi, ʻaʻole i hoʻokaʻawale ʻia ka HPMC i loko o ka wai i loko o nā ion i hoʻopaʻa ʻia, akā aia ma ke ʻano he mau mole.
He aha ka pili ana i ka mahana gelation o hydroxypropyl methyl cellulose?
Pane: ʻO ka mahana gel o HPMC pili i ka methoxyl content. ʻO ka haʻahaʻa o ka methoxyl content, ʻoi aku ka kiʻekiʻe o ka mahana gel.
ʻAʻohe pili ka Skim coat powder a me HPMC?
Pane: He pilina koʻikoʻi ko ka ʻahuʻula Skim a me ka maikaʻi o ka calcium lehu, a ʻaʻohe pilina nui o HPMC. ʻO ka haʻahaʻa o ka calcium haʻahaʻa o ka calcium hina a me ka hapa kūpono ʻole o CaO a me Ca(OH)2 i loko o ka calcium hina ka mea e hāʻule ai ka pauka. Inā loaʻa kahi pilina me HPMC, a laila ʻo ka paʻa ʻana o ka wai maikaʻi ʻole o ka HPMC e lilo pū i ka pauka.
He aha ka ʻokoʻa ma waena o ka wai anuanu a me ka hydroxypropyl methyl cellulose wela i ke kaʻina hana?
- Pane: ʻO ke ʻano hoʻonā koke o ka wai anuanu HPMC ma hope o ka mālama ʻana i ka glycoxal surface, hoʻokomo i ka wai anuanu i hoʻopuehu koke ʻia, akā ʻaʻole i hoʻoheheʻe maoli ʻia, viscosity up, ua hoʻoheheʻe ʻia. ʻAʻole mālama ʻia ke ʻano thermosoluble me ka glyoxal. Nui ka nui o ka glyoxal, wikiwiki ka hoʻopuehu, akā lohi ka viscosity, liʻiliʻi ka nui, ma kahi ʻē.
He aha ka mea e pili ana i ka hydroxypropyl methyl cellulose (HPMC) e pilau?
- Pane: ʻO ka HPMC i hana ʻia ma ke ʻano solvent me ka toluene a me ka isopropyl alcohol. Inā ʻaʻole maikaʻi loa ka holoi ʻana, loaʻa kekahi ʻono i koe.
Nā hoʻohana like ʻole, pehea e koho ai i ka hydroxypropyl methyl cellulose (HPMC) kūpono?
- pane: e hōʻoluʻolu me ka hoʻohana ʻana i ka pauka keiki: ʻoi aku ka haʻahaʻa o ke koi, viscosity 100000, ʻae, pono ia e pale i ka wai e kokoke. ʻO ka noi mortar: nā koi kiʻekiʻe, nā koi viscosity kiʻekiʻe, 150000 e ʻoi aku ka maikaʻi. ʻO ka hoʻohana ʻana i ke kāpili: ka pono o nā huahana koke, viscosity kiʻekiʻe.
He aha kekahi inoa no ka hydroxypropyl methyl cellulose?
– PANE: Hydroxypropyl MethylCellulose, Hoʻopau ʻia e like me HPMC a i ʻole MHPC, a i ʻole Hydroxypropyl Methyl Cellulose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether.
ʻO HPMC i ka hoʻohana ʻana i ka lole Skim, he aha ke kumu o ka ʻaʻahu Skim bubble?
Pane: HPMC i ka lole Skim, mānoanoa, wai a me ke kūkulu ʻana i ʻekolu kuleana. ʻAʻole komo i kekahi pane. Nā kumu o nā ʻōhū: 1, nui ka wai. 2, ʻaʻole maloʻo ka lalo, ma luna o ka papa ʻōpala, maʻalahi hoʻi e blister.
ʻO ka pā i loko a i waho ke ʻano Skim coat formula?
– pane: paia loko ʻaʻahu Skim : calcium 800KG kalapona hina 150KG (starch ether, ʻōmaʻomaʻo maʻemaʻe, peng runtu, citric acid, polyacrylamide hiki ke hoʻohui pono ʻia)
ʻO ka paia waho ʻaʻahu Skim: sima 350KG calcium 500KG quartz one 150KG latex pauda 8-12kg cellulose etera 3KG starch etera 0.5kg fiber lāʻau 2KG
He aha ka ʻokoʻa ma waena o HPMC a me MC?
- Pane: ʻO MC ka methyl cellulose, i hana ʻia me ka cellulose ether ma o ke ʻano o nā hopena me ka methane chloride ma ke ʻano he etherifying agent ma hope o ka mālama ʻia ʻana o ka pulupulu hoʻomaʻemaʻe me ka alkali. ʻO ka maʻamau, ʻo ke degere o ka hoʻololi ʻana he 1.6 ~ 2.0, a ʻokoʻa ka solubility me ke ʻano o ka hoʻololi. Nonionic cellulose ether.
(1) ʻO ka paʻa ʻana o ka wai o ka methyl cellulose e pili ana i kona nui hoʻohui, viscosity, ʻoi aku ka maikaʻi a me ka helu dissolution. Hoʻohui maʻamau i ka nui, liʻiliʻi liʻiliʻi, viscosity, kiʻekiʻe ka paʻa wai. I waena o lākou, ʻo ka nui o ka additive ka mea nui loa i ka paʻa ʻana o ka wai, a ʻaʻole kūlike ka viscosity i ka paʻa ʻana o ka wai. ʻO ka nui o ka hoʻoheheʻe ʻana e hilinaʻi nui ʻia i ka pae hoʻololi o ka ʻili a me ka maikaʻi o nā ʻāpana cellulose. I loko o kekahi mau cellulose ethers ma luna, ʻoi aku ka kiʻekiʻe o ka methyl cellulose a me ka hydroxypropyl methyl cellulose paʻa wai.
(2) Hiki ke hoʻoheheʻe ʻia ka methyl cellulose i ka wai anuanu, he paʻakikī ke hoʻoheheʻe i ka wai wela. Paʻa loa kona hopena wai i loko o ka pH = 3 ~ 12. He kūpono maikaʻi me ka starch, guanidine gum a me nā mea hoʻoheheʻe he nui. Hoʻomaka ka hoʻoheheʻe ʻana i ka wā e hiki ai ka mahana i ka mahana gelation.
(3) E hoʻololi koʻikoʻi ka hoʻololi o ka mahana i ka pae paʻa wai o ka methyl cellulose. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40 ℃, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai o ka methyl cellulose, kahi e hoʻopilikia nui ai i ka hana ʻana o ka mortar.
(4) Loaʻa ka mana o ka methyl cellulose i ke kūkulu ʻana a me ka hoʻopili ʻana o ka mortar. ʻO ka "Adhesion" ma aneʻi e pili ana i ka adhesion i manaʻo ʻia e ka mea hana ma waena o ka mea paahana a me ke pani o ka pā, ʻo ia hoʻi ka pale ʻana o ka mortar. Nui ka hoʻopili ʻana, nui ka pale ʻana o ka mortar, ʻo ka ikaika i koi ʻia e nā limahana i ka hana o ka hoʻohana ʻana he nui nō hoʻi, a ʻo ka hana ʻana o ka mortar he ʻilihune. I nā huahana cellulose ether, aia ka hoʻopili ʻana o ka methyl cellulose ma kahi pae haʻahaʻa.
ʻO ka HPMC hydroxypropyl methyl cellulose, hoʻomaʻemaʻe ʻia e ka pulupulu ma hope o ka mālama ʻana i ka alkali, me ka propylene oxide a me ka chloromethane ma ke ʻano he etherifying agent, ma o ke ʻano o nā hopena a hana ʻia me ka non-ionic cellulose i hui ʻia eter. ʻO ka pae o ka hoʻololi ʻana he 1.2-2.0. ʻOkoʻa kona mau waiwai me ka hapa o ka methoxy a me ka hydroxypropyl content.
(1) Hiki ke hoʻoheheʻe ʻia ka Hydroxypropyl methyl cellulose i ka wai anuanu, he paʻakikī ke hoʻoheheʻe i ka wai wela. Eia nō naʻe, ʻoi aku ka kiʻekiʻe o ka mahana gelation i ka wai wela ma mua o ka methyl cellulose. Ua hoʻomaikaʻi maikaʻi ʻia ka solubility o ka methyl cellulose i ka wai anuanu.
(2) ʻO ka viscosity o ka hydroxypropyl methyl cellulose e pili ana i kona kaumaha mole, a ʻoi aku ka kiʻekiʻe o ke kaumaha mole, ʻoi aku ka kiʻekiʻe o ka viscosity. Hoʻopili ka mahana i ka viscosity. E emi ana ka viscosity ke piʻi ka mahana. Akā ʻoi aku ka haʻahaʻa o kona hopena wela kiʻekiʻe ma mua o ka methyl cellulose. Paʻa ka hopena ke mālama ʻia ma ka lumi wela.
(3) Hydroxypropyl methyl cellulose paʻa i ka waikawa a me ke kumu, a paʻa loa kona hopena wai i ka pae o ka pH = 2 ~ 12. He liʻiliʻi ka hopena o ka soda a me ka wai lime i kona mau waiwai, akā hiki i ka alkali ke hoʻolalelale i kona helu hoʻoheheʻe a hoʻomaikaʻi i ka viscosity. He kūpaʻa ka Hydroxypropyl methyl cellulose i nā paʻakai maʻamau, akā ke kiʻekiʻe ka neʻe ʻana o ka hopena paʻakai, piʻi ka viscosity o ka hydroxypropyl methyl cellulose solution.
(4) ʻO ka paʻa ʻana o ka wai o ka hydroxypropyl methyl cellulose e pili ana i kona ʻano a me ka viscosity, a ʻoi aku ka kiʻekiʻe o ka paʻa wai o ka hydroxypropyl methyl cellulose ma mua o ka methyl cellulose ma ka like like.
(5) Hiki ke hoʻohui ʻia ka Hydroxypropyl methyl cellulose me nā pūhui polymer hiki ke hoʻoheheʻe ʻia i ka wai e lilo i mea like, ʻoi aku ka nui o ka viscosity solution. E like me ka waiʻona polyvinyl, starch ether, ke kāpili mea kanu a pēlā aku.
(6) ʻOi aku ka kiʻekiʻe o ka hoʻopili ʻana o ka hydroxypropyl methyl cellulose i ke kūkulu ʻana i ka mortar ma mua o ka methyl cellulose.
(7) Hydroxypropyl methyl cellulose 'oi aku ka maika'i o ke kū'ē i ka enzyme ma mua o ka methyl cellulose, a he ha'aha'a ka hopena o ka enzyme degradation ma mua o ka methyl cellulose.
He aha ka mea e pono e hoʻolohe i ka hoʻohana pono e pili ana i ka pilina ma waena o ka viscosity a me ka mahana o HPMC?
Pane: ʻO ka viscosity o HPMC ua like ia me ka mahana, ʻo ia hoʻi, piʻi ka viscosity me ka emi ʻana o ka mahana. Ke kamaʻilio mākou e pili ana i ka viscosity o kahi huahana, ke kamaʻilio nei mākou e pili ana i ka viscosity o 2% o ka huahana i ka wai ma 20 degere Celsius.
I ka hoʻohana pono ʻana, ma nā wahi me ka nui o nā ʻokoʻa wela ma waena o ke kauwela a me ka hoʻoilo, pono e hoʻomaopopo ʻia e hoʻohana i ka viscosity haʻahaʻa haʻahaʻa i ka hoʻoilo, ʻoi aku ka maikaʻi o ke kūkulu ʻana. A i ʻole, ke haʻahaʻa ka mahana, e piʻi ka viscosity o cellulose, a i ka wā e ʻoki ai, kaumaha ka manaʻo.
Medium viscosity: 75000-100000 i hoʻohana nui ʻia no ka putty
Ke kumu: Paʻa wai maikaʻi
ʻO ka viscosity kiʻekiʻe: HPMC 150000-200000 hoʻohana nui ʻia no ka polystyrene particle insulation mortar glue powder material a me vitrified beads insulation mortar.
Ke kumu: kiʻekiʻe viscosity, ʻaʻole maʻalahi ka mortar e hāʻule, kahe e kau ana, hoʻomaikaʻi i ke kūkulu ʻana.
Akā ma ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, ʻoi aku ka nui o nā ʻoihana mortar maloʻo, e noʻonoʻo ana i ke kumukūʻai, e hoʻohana i ka viscosity HPMC cellulose (75000-100000) e hoʻololi i ka cellulose HPMC viscosity haʻahaʻa (20000-40000). ka nui o ka hoʻohui.
Ka manawa hoʻouna: Jan-10-2022