He aha ka viscosity kūpono o ka hydroxypropyl methylcellulose (HPMC)?
ʻO ka pauka Putty ma ke ʻano he 100,000 yuan, a ʻoi aku ka kiʻekiʻe o nā koi no ka mortar, a ʻo 150,000 yuan e koi ʻia no ka hoʻohana maʻalahi. Eia kekahi, ʻo ka hana koʻikoʻi o HPMC ʻo ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa. I loko o ka pauka putty, ʻoiai he maikaʻi ka paʻa ʻana o ka wai a haʻahaʻa ka viscosity (70,000-80,000), hiki nō hoʻi. ʻOiaʻiʻo, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa wai pili. Ke ʻoi aku ka viscosity ma mua o 100,000, e hoʻopilikia ka viscosity i ka paʻa wai. ʻAʻole nui hou.
He aha nā ʻano hoʻoheheʻe o ka hydroxypropyl methylcellulose (HPMC)?
(1) Keʻokeʻo: ʻOiai ʻaʻole hiki iā Baidu ke hoʻoholo inā he maʻalahi ka HPMC e hoʻohana, a inā hoʻohui ʻia nā mea keʻokeʻo i ka wā o ke kaʻina hana, e hoʻopilikia ʻia kona maikaʻi. Eia naʻe, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.
(2) Maikaʻi: ʻO ka maikaʻi o HPMC maʻamau he 80 mesh a me 100 mesh, a he 120 mesh ka liʻiliʻi. ʻO ka hapa nui o HPMC i hana ʻia ma Hebei he 80 mesh. ʻO ka ʻoi aku ka maikaʻi, ʻo ka ʻōlelo maʻamau, ʻoi aku ka maikaʻi.
(3) Ka hoʻouna māmā: e hoʻokomo i ka hydroxypropyl methylcellulose (HPMC) i loko o ka wai e hana i kahi colloid māmā, a nānā i kāna transmittance māmā. ʻOi aku ka nui o ka transmittance māmā, ʻoi aku ka maikaʻi, e hōʻike ana he liʻiliʻi nā insolubles i loko. . ʻOi aku ka maikaʻi o ka permeability o nā reactors vertical, a ʻoi aku ka maikaʻi o nā reactors horizontal, akā ʻaʻole ia he manaʻo ʻoi aku ka maikaʻi o nā reactors vertical ma mua o nā reactors horizontal, a ua hoʻoholo ʻia ka maikaʻi o ka huahana e nā kumu he nui. (4) Kaumaha kikoʻī: ʻO ka nui o ka umekaumaha kikoʻī, ʻoi aku ka ʻoi aku ka maikaʻi. Nui ka kikoʻī, maʻamau no ka mea he kiʻekiʻe ka ʻike o ka hui hydroxypropyl i loko, a ʻoi aku ka kiʻekiʻe o ka ʻike o ka hui hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.
He aha ka hana nui o ka hoʻohana ʻana i ka HPMC i ka pauka putty, a hana kemika?
I ka pauka putty, hoʻokani ʻo HPMC i ʻekolu hana o ka mānoanoa, paʻa wai a me ke kūkulu ʻana.
Mānoanoa: Hiki ke mānoanoa ka cellulose e hoʻopaneʻe a mālama i ka hoʻonā ʻaʻahu i luna a i lalo, a pale aku i ka haʻalulu.
Ka paʻa ʻana o ka wai: e hoʻomaloʻo mālie i ka pauka putty, a kōkua i ka calcium lehu e hana ma lalo o ka hana o ka wai.
Hana: He hopena lubricating ka Cellulose, hiki ke hana i ka pauka putty i ke kūkulu maikaʻi. ʻAʻole komo ʻo HPMC i nā hopena kemika, akā he hana kōkua wale nō. ʻO ka hoʻohui ʻana i ka wai i ka pauka putty a kau ʻia ma ka paia he hopena kemika, no ka mea, ua hana ʻia nā mea hou. Inā wehe ʻoe i ka pauda putty ma ka paia mai ka paia, wili a lilo i pauda, a hoʻohana hou, ʻaʻole ia e hana no ka mea ua hana ʻia nā mea hou (calcium carbonate). ) kekahi.
ʻO nā mea nui o ka pauka calcium lehu: he hui ʻana o Ca(OH)2, CaO a me kahi liʻiliʻi o CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O ash calcium i ka wai a me ka ea Ma lalo o ka hana a CO2, hoʻokumu ʻia ka calcium carbonate, ʻoiai ʻo HPMC e mālama i ka wai, e kōkua ana i ka hopena maikaʻi o ka calcium lehu, a ʻaʻole i komo i kekahi pane ponoʻī.
ʻO ka pilina ma waena o ka viscosity a me ka mahana o HPMC, he aha ka mea e hoʻolohe ai i ka hoʻohana pono?
ʻO ka viscosity o ka HPMC he like ia me ka mahana, ʻo ia hoʻi, piʻi ka viscosity i ka emi ʻana o ka mahana. ʻO ka viscosity o kahi huahana a mākou e ʻōlelo pinepine ai e pili ana i ka hopena hoʻāʻo o kāna 2% aqueous solution ma kahi mahana o 20 degere Celsius.
Ma nā hoʻohana pono, pono e hoʻomaopopo ʻia i nā wahi me nā ʻokoʻa wela nui ma waena o ke kauwela a me ka hoʻoilo, ua ʻōlelo ʻia e hoʻohana i kahi 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 ka cellulose, a kaumaha ka lima i ka wā e ʻoki ai.
Medium viscosity: 75000-100000 i hoʻohana nui ʻia no ka putty
Ke kumu: mālama maikaʻi i ka wai
Hoʻohana nui ʻia ka viscosity kiʻekiʻe: 150000-200000 no ka polystyrene particle insulation mortar rubber powder a me ka vitrified microbead insulation mortar.
ʻO ke kumu: kiʻekiʻe viscosity, ʻaʻole maʻalahi ka hāʻule ʻana o ka mortar, sagging, kahi e hoʻomaikaʻi ai i ke kūkulu ʻana.
Ka manawa hoʻouna: Mei-18-2023