1. He aha ka hoʻohana nui ʻana ohydroxypropyl methylcellulose (HPMC)?
Hoʻohana nui ʻia ka HPMC i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā keramika, nā lāʻau lapaʻau, ka meaʻai, nā lole, ka mahiʻai, nā mea hoʻonani, ka paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano kūkulu hale, ke ʻano meaʻai a me ka ʻano lāʻau lapaʻau e like me ke kumu. I kēia manawa, ʻo ka hapa nui o nā huahana kūloko he ʻano kūkulu hale. I ke ʻano kūkulu hale, hoʻohana nui ʻia ka pauka putty, ma kahi o 90% e hoʻohana ʻia no ka pauka putty, a hoʻohana ʻia ke koena no ka sima sima.
2. He aha ke ʻala o ka hydroxypropyl methylcellulose (HPMC)?
Hoʻohana ka HPMC i hana ʻia e ke ʻano hoʻoheheʻe i ka toluene a me ka isopropanol ma ke ʻano he mau mea hoʻoheheʻe. Inā ʻaʻole maikaʻi loa ka holoi ʻana, e koe ana kekahi ʻala.
3. He aha nā ʻano hoʻoheheʻe ʻana o ka hydroxypropyl methylcellulose (HPMC)?
Ke ʻano hoʻoheheʻe wai wela: ʻOiai ʻaʻole hoʻoheheʻe ʻia ka HPMC i ka wai wela, hiki ke hoʻopuehu like ʻia ka HPMC i ka wai wela i ka wā mua, a laila hoʻoheheʻe koke ʻia i ka wā e hoʻomaʻalili ʻia ai. Ua wehewehe ʻia ʻelua mau ʻano maʻamau penei:
1) E hoʻokomo i ka nui o ka wai wela e pono ai i loko o ka ipu a hoʻomehana iā ia a hiki i kahi o 70°C. Ua hoʻohui mālie ʻia ka hydroxypropyl methylcellulose ma lalo o ka hoʻoulu mālie ʻana, i ka wā mua ua lana ka HPMC ma luna o ka wai, a laila hana mālie i kahi slurry, kahi i hoʻomaʻalili ʻia ma lalo o ka hoʻoulu ʻana.
2), e hoʻohui i ka 1/3 a i ʻole 2/3 o ka nui o ka wai e pono ai i loko o ka ipu, a hoʻomehana iā ia i 70°C, e hoʻopuehu i ka HPMC e like me ke ʻano o 1), a hoʻomākaukau i ka slurry wai wela; a laila e hoʻohui i ke koena o ka wai anuanu i ka slurry wai wela, ua hoʻomaʻalili ʻia ka hui ʻana ma hope o ka hoʻoulu ʻana.
ʻAno kāwili pauka: e kāwili i ka pauka HPMC me ka nui o nā mea pauka ʻē aʻe, e kāwili maikaʻi me ka mea kāwili, a laila e hoʻohui i ka wai e hoʻoheheʻe, a laila hiki ke hoʻoheheʻe ʻia ka HPMC i kēia manawa me ka ʻole o ka hoʻopili ʻana, no ka mea, he liʻiliʻi wale nō ka HPMC ma kēlā me kēia kihi liʻiliʻi. ʻO ka pauka, e hoʻoheheʻe koke ʻia ke hoʻopili ʻia me ka wai. ——Ke hoʻohana nei nā mea hana pauka Putty a me ka mortar i kēia ʻano hana. [Hoʻohana ʻia ka Hydroxypropyl methylcellulose (HPMC) ma ke ʻano he mea hoʻomānoanoa a me ka mea paʻa wai i loko o ka mortar pauka putty. ]
4. Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methylcellulose (HPMC) me ka maʻalahi a me ka naʻauao?
(1) Keʻokeʻo: ʻOiai ʻaʻole hiki i ka keʻokeʻo ke hoʻoholo inā maʻalahi ka hoʻohana ʻana i ka HPMC, a inā hoʻohui ʻia nā mea hoʻokeʻokeʻo i ka wā o ke kaʻina hana, e hoʻopilikia ia i kona maikaʻi. Eia nō naʻe, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.
(2) Maikaʻi: ʻO ka maikaʻi o ka HPMC ma ke ʻano maʻamau he 80 mesh a me 100 mesh, a ʻoi aku ka liʻiliʻi o 120 mesh. ʻO ka hapa nui o HPMC i hana ʻia ma Hebei he 80 mesh. ʻO ka maikaʻi o ka maikaʻi, ma ke ʻano laulā, ʻoi aku ka maikaʻi.
(3) Ka hoʻoili ʻana o ka mālamalama: kauhydroxypropyl methylcellulose (HPMC)i loko o ka wai e hana i kahi colloid moakaka, a nānā i kona hoʻoili mālamalama. ʻO ka nui o ka hoʻoili mālamalama, ʻoi aku ka maikaʻi, e hōʻike ana he emi nā mea hiki ʻole ke hoʻoheheʻe ʻia i loko. . ʻOi aku ka maikaʻi o ka permeability o nā reactors vertical, a ʻoi aku ka ʻino o nā reactors horizontal, akā ʻaʻole ia he manaʻo he ʻoi aku ka maikaʻi o ke ʻano o nā reactors vertical ma mua o nā reactors horizontal, a ua hoʻoholo ʻia ke ʻano o ka huahana e nā kumu he nui.
(4) Ke kaumaha kikoʻī: ʻOi aku ka nui o ke kaumaha kikoʻī, ʻoi aku ka maikaʻi o ke kaumaha. Nui ka kikoʻī, ma ke ʻano nui no ka mea he kiʻekiʻe ka nui o ka hui hydroxypropyl i loko, a he kiʻekiʻe ka nui o ka hui hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.
5. He aha ka ʻokoʻa ma waena o ke ʻano wai anuanu koke a me ke ʻano hydroxypropyl methylcellulose hiki ke hoʻoheheʻe ʻia i ka wela i ke kaʻina hana?
Hoʻomāmā ʻia ke ʻano hoʻopuehu wikiwiki o HPMC me ka glyoxal, a hoʻopuehu koke ia i ka wai anuanu, akā ʻaʻole ia e hoʻoheheʻe maoli. Hoʻomāehu wale ia i ka wā e piʻi ai ka mānoanoa. ʻAʻohe mālama ʻili o ke ʻano koke me ka glyoxal. Inā nui ka nui o ka glyoxal, e wikiwiki ka hoʻopuehu ʻana, akā e piʻi mālie ka mānoanoa, a inā liʻiliʻi ka nui, ʻo ka ʻaoʻao ʻē aʻe ka ʻoiaʻiʻo.
6. He aha ka mānoanoa kūpono o ka hydroxypropyl methylcellulose (HPMC)?
ʻO ke kumukūʻai maʻamau o ka pauka Putty he 100,000 yuan, a ʻoi aku ke kiʻekiʻe o nā koi no ka mortar, a he 150,000 yuan ka mea e pono ai no ka hoʻohana maʻalahi. Eia kekahi, ʻo ka hana nui loa o HPMC ka paʻa ʻana i ka wai, a ukali ʻia e ka mānoanoa. I loko o ka pauka putty, inā maikaʻi ka paʻa ʻana o ka wai a haʻahaʻa ka viscosity (70,000-80,000), hiki nō hoʻi. ʻOiaʻiʻo, ʻo ke kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. Ke ʻoi aku ka viscosity ma mua o 100,000, e hoʻopilikia ka viscosity i ka paʻa ʻana o ka wai. ʻAʻole nui hou.
7. He aha nā ʻōkuhi loea nui o ka hydroxypropyl methylcellulose (HPMC)?
ʻO ka nui o ka hydroxypropyl a me ka mānoanoa, hopohopo ka hapa nui o ka poʻe e pili ana i kēia mau ʻōkuhi ʻelua. ʻO ka poʻe me ka nui o ka hydroxypropyl he ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. ʻO ka mea me ka mānoanoa kiʻekiʻe he ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, me ka hoʻohālikelike (ʻaʻole loa), a ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka mea me ka mānoanoa kiʻekiʻe i ka sima sima.
8. He aha nā mea nui o ka hydroxypropyl methylcellulose (HPMC)?
ʻO nā mea maka nui o ka hydroxypropyl methylcellulose (HPMC): pulupulu i hoʻomaʻemaʻe ʻia, methyl chloride, propylene oxide, a me nā mea maka ʻē aʻe, caustic soda, acid, toluene, isopropanol, a pēlā aku.
9. He aha ka hana nui o ka hoʻopili ʻana oHPMCi loko o ka pauka putty, a hana ia ma ke ʻano kemika?
I loko o ka pauka putty, hoʻokani ʻo HPMC i ʻekolu mau kuleana o ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana.
Mānoanoa: Hiki ke hoʻomānoanoa ʻia ka cellulose e hoʻokuʻu a mālama i ka wai like i luna a i lalo, a pale aku i ka sagging.
Ka paʻa ʻana o ka wai: e hoʻomaloʻo mālie i ka pauka putty, a kōkua i ka lehu calcium e pane ma lalo o ka hana a ka wai.
Ke kūkulu ʻana: He hopena lubricating ko Cellulose, hiki ke hana i ka pauka putty i kūkulu maikaʻi ʻia.
ʻO ka hoʻohui ʻana i ka wai i ka pauka putty a kau ʻana ma luna o ka paia he hopena kemika ia, no ka mea, ua hoʻokumu ʻia nā mea hou. Inā ʻoe e wehe i ka pauka putty ma ka paia mai ka paia mai, wili iā ia i pauka, a hoʻohana hou, ʻaʻole ia e hana no ka mea ua hoʻokumu ʻia nā mea hou (calcium carbonate).
ʻO nā ʻāpana nui o ka pauka kalipuna lehu: kahi hui ʻana o Ca(OH)2, CaO a me kahi liʻiliʻi o CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Aia ka kalipuna lehu i loko o ka wai a me ka ea Ma lalo o ka hana a CO2, hoʻopuka ʻia ka kalipuna kalapona, ʻoiai ʻo HPMC e mālama wale i ka wai, e kōkua ana i ka hopena maikaʻi o ka kalipuna lehu, a ʻaʻole ia e komo i kekahi hopena ponoʻī.
10. ʻO HPMC kahi ʻetera cellulose non-ionic, no laila he aha ka non-ionic?
Ma ka ʻōlelo maʻamau, ʻo nā non-ion he mau mea i hoʻokaʻawale ʻole ʻia i loko o ka wai. ʻO ka ionization ke kaʻina hana e hoʻokaʻawale ʻia ai kahi electrolyte i loko o nā ion i hoʻopiʻi ʻia e hiki ke neʻe manuahi i loko o kahi mea hoʻoheheʻe kikoʻī (e like me ka wai, ka waiʻona). No ka laʻana, ʻo ka sodium chloride (NaCl), ka paʻakai a mākou e ʻai ai i kēlā me kēia lā, hoʻoheheʻe ʻia i loko o ka wai a hoʻokaʻawale ʻia e hana i nā ion sodium neʻe manuahi (Na+) i hoʻopiʻi maikaʻi ʻia a me nā ion chloride (Cl) i hoʻopiʻi maikaʻi ʻole ʻia. ʻO ia hoʻi, ke kau ʻia ka HPMC i loko o ka wai, ʻaʻole ia e hoʻokaʻawale i loko o nā ion i hoʻopiʻi ʻia, akā aia ma ke ʻano o nā molekala.
11. He aha ka pili o ka mahana gel o ka hydroxypropyl methylcellulose?
Pili ka mahana o ka gel o HPMC i kāna ʻike methoxy, ʻo ka haʻahaʻa o ka ʻike methoxy, ʻo ke kiʻekiʻe o ka mahana gel.
12. Aia kekahi pilina ma waena o ka kulu ʻana o ka pauka putty a me HPMC?
ʻO ka nalowale o ka pauka o ka pauka putty e pili nui ana i ka maikaʻi o ka calcium lehu, a ʻaʻohe ona pili iki me ka HPMC. ʻO ka haʻahaʻa o ka calcium o ka calcium hina a me ka lakio kūpono ʻole o CaO a me Ca(OH)2 i ka calcium hina e hoʻoulu ai i ka nalowale o ka pauka. Inā pili ia me ka HPMC, a laila inā ʻaʻole maikaʻi ka paʻa ʻana o ka wai o ka HPMC, e hoʻoulu pū ia i ka nalowale o ka pauka.
13. He aha ka ʻokoʻa ma waena o ke ʻano wai anuanu koke a me ke ʻano hydroxypropyl methylcellulose hiki ke hoʻoheheʻe ʻia i ka wela i ke kaʻina hana?
ʻO ke ʻano hoʻopuehu wikiwiki oHPMCua mālama ʻia ka ʻili me ka glyoxal, a hoʻopuehu koke ia i ka wai anuanu, akā ʻaʻole ia e hoʻoheheʻe maoli. Hoʻoheheʻe wale ia i ka wā e piʻi ai ka mānoanoa. ʻAʻohe mālama ʻili o ke ʻano koke me ka glyoxal. Inā nui ka nui o ka glyoxal, e wikiwiki ka hoʻopuehu ʻana, akā e piʻi mālie ka mānoanoa, a inā liʻiliʻi ka nui, ʻo ka ʻaoʻao ʻē aʻe ka ʻoiaʻiʻo.
Ka manawa hoʻouna: ʻApelila-25-2024