ʻO ka hoʻonā HPMC

1, he aha ka hoʻohana nui ʻana o ka hydroxypropyl methyl cellulose (HPMC)?

Pane:HPMCHoʻohana nui ʻia i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā keramika, nā lāʻau lapaʻau, ka meaʻai, ka lole, ka mahiʻai, nā mea hoʻonani, ka paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i: ke ʻano kūkulu, ke ʻano meaʻai a me ke ʻano lapaʻau e like me ka hoʻohana ʻana. I kēia manawa, ʻo ka pae kūkulu hale ka mea nui loa, ma ke ʻano kūkulu, nui loa ka nui o ka pauka putty, ma kahi o 90% e hoʻohana ʻia e hana i ka pauka putty, ʻo ke koena e hoʻohana ʻia e hana i ka sima sima a me ke kāpili.

2, ua māhele ʻia ka hydroxypropyl methyl cellulose (HPMC) i kekahi mau ʻano, he aha ka ʻokoʻa ma waena o kona hoʻohana ʻana?

Pane: Hiki ke hoʻokaʻawale ʻia ka HPMC i nā huahana hikiwawe a me ka wela, nā huahana hikiwawe, i ka wai anuanu e hoʻopuehu koke ʻia, nalowale i ka wai, i kēia manawa ʻaʻohe viscosity o ka wai, no ka mea, ua hoʻopuehu wale ʻia ka HPMC i ka wai, ʻaʻohe hoʻoheheʻe maoli. Ma kahi o 2 mau minuke, e piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous maopopo. ʻO nā huahana hikiwawe i ka wela, i ka hoʻohuihui wai anuanu, hiki ke hoʻopuehu koke ʻia i ka wai wela, nalowale i ka wai wela, a hiki i ka hāʻule ʻana o ka mahana i kahi mahana, e ʻike mālie ʻia ka viscosity, a hiki i ka hoʻokumu ʻia ʻana o kahi colloid viscous maopopo. Hiki ke hoʻohana ʻia ke ʻano hikiwawe i ka wela i ka pauka putty a me ka mortar, i loko o ka glue wai a me ka uhi ʻana, hiki ke ʻike ʻia ka hanana agglomeration, ʻaʻole hiki ke hoʻohana ʻia. ʻO ke kumu hoʻohālike hoʻoheheʻe koke, ʻoi aku ka laulā o ka noi, i ka luhi ʻana me ka pauka keiki a me ka mortar, a i loko o ka glue wai a me ka uhi ʻana, hiki ke hoʻohana ʻia nā mea āpau, ʻaʻohe kapu.

3, hydroxypropyl methyl cellulose (HPMC) nā ʻano hana hoʻoheheʻe i loaʻa iā lākou?

– pane: ʻano hoʻoheheʻe wai wela: no ka mea, ʻaʻole i hoʻoheheʻe ʻia ka HPMC i ka wai wela, no laila hiki ke hoʻopuehu like ʻia ka HPMC mua i ka wai wela, a laila hoʻoheheʻe koke ʻia i ka wā e hoʻomaʻalili ai, ua wehewehe ʻia ʻelua mau ʻano maʻamau penei:

1) E hoʻopiha i ka ipu me ka nui o ka wai wela e like me kou makemake a hoʻomehana iā ia a hiki i kahi o 70℃. Hoʻohui mālie ʻia ka Hydroxypropyl methyl cellulose ma lalo o ka hoʻoulu mālie ʻana, a lana ka HPMC ma luna o ka wai, a laila hana mālie i kahi slurry, kahi e 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℃. E hoʻopuehu i ka HPMC e like me ke ʻano 1) e hoʻomākaukau i ka slurry wai wela; A laila e hoʻohui i ke koena o ka wai anuanu i ka slurry wai wela a hoʻomaʻalili i ka hui ma hope o ka hoʻoulu ʻana.

ʻAno kāwili pauka: ʻO ka pauka HPMC a me ka nui o nā mea hana pauka ʻē aʻe, i kāwili piha ʻia me ka blender, a laila e hoʻohui i ka wai e hoʻoheheʻe, i kēia manawa hiki i ka HPMC ke hoʻoheheʻe, ʻaʻole e hoʻopili, no ka mea, ʻo kēlā me kēia kihi liʻiliʻi, he pauka HPMC liʻiliʻi wale nō, e hoʻoheheʻe koke ka wai. – Hoʻohana nā mea hana pauka Putty a me ka mortar i kēia ʻano hana. [Hydroxypropyl methyl cellulose (HPMC) i hoʻohana ʻia ma ke ʻano he mea hoʻomānoanoa a me ka mea mālama wai i ka mortar pauka putty.

4, pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methyl cellulose (HPMC) maʻalahi a maʻalahi hoʻi?

Pane: (1) keʻokeʻo: ʻoiai ʻaʻole hiki i ke keʻokeʻo ke hoʻoholo inā maikaʻi ka HPMC, a inā e hoʻohui ʻia i loko o ke kaʻina hana keʻokeʻo, e hoʻopilikia i kona maikaʻi. Eia nō naʻe, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi. (2) fineness: ʻO ka fineness HPMC maʻamau he 80 mesh a me 100 mesh, 120 kumu emi, ʻo Hebei HPMC ka hapa nui he 80 mesh, ʻoi aku ka maikaʻi o ka fineness, ma ke ʻano laulā, ʻoi aku ka maikaʻi. (3) transmittance: ʻo ka hydroxypropyl methyl cellulose (HPMC) i loko o ka wai, ka hoʻokumu ʻana o kahi colloid moakaka, ʻike i kona transmittance, ʻoi aku ka maikaʻi o ka transmittance, ʻoi aku ka liʻiliʻi o nā mea insoluble i loko. ʻOi aku ka maikaʻi o ka transmittance o ka reactor vertical, a ʻoi aku ka maikaʻi ʻole o ka reactor horizontal, akā ʻaʻole ia he manaʻo he ʻoi aku ka maikaʻi o ka hana ʻana o ka reactor vertical ma mua o ka reactor horizontal. Nui nā mea e hoʻoholo ai i ka maikaʻi o ka huahana. (4) Proportion: ʻoi aku ka nui o ka proportion, ʻoi aku ka maikaʻi o ke kaumaha. Ma mua o ka mea nui, no ka mea, ʻoi aku ka nui o ka ʻike o ka hydroxyl propyl base i loko o ka mea maʻamau, a ʻoi aku ka nui o ka ʻike o ka hydroxyl propyl base, no laila e pale aku i ka wai.

5, ʻoi aku ka kūpono o ka viscosity hydroxypropyl methyl cellulose (HPMC)?

– pane: e luhi me ka pauka keiki he maikaʻi maʻamau 100 tausani, ʻoi aku ke kiʻekiʻe o ke koi i ka mortar, makemake i 150 tausani hiki ke hoʻohana. Eia kekahi, ʻo HPMC ke kuleana koʻikoʻi o ka paʻa ʻana o ka wai, a ukali ʻia e ka mānoanoa. I loko o ka pauka putty, inā maikaʻi ka paʻa ʻana o ka wai, haʻahaʻa ka viscosity (7-80 tausani), hiki nō hoʻi, ʻoiaʻiʻo, ʻoi aku ka nui o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, i ka wā e ʻoi aku ka viscosity ma mua o 100 tausani, ʻaʻole nui ka viscosity o ka paʻa ʻana o ka wai.

6, he aha nā ʻōkuhi loea nui o ka hydroxypropyl methyl cellulose (HPMC)?

Pane: ʻO ka nui o ka hydroxypropyl a me ka viscosity, mālama ka hapa nui o nā mea hoʻohana i kēia mau ʻōkuhi ʻelua. Kiʻekiʻe ka nui o ka hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai. ʻOi aku ka maikaʻi o ka viscosity, ka paʻa ʻana o ka wai, pili (akā ʻaʻole paʻa loa), a ʻoi aku ka maikaʻi o ka viscosity, ʻoi aku ka maikaʻi o ka sima sima e hoʻohana i kekahi.

7, he aha nā mea nui o ka hydroxypropyl methyl cellulose (HPMC)?

Pane: hydroxypropyl methyl cellulose (HPMC) nā mea nui o ka maka: pulupulu i hoʻomaʻemaʻe ʻia, chloromethane, propylene oxide, nā mea maka ʻē aʻe, papa alkali, waikawa, toluene, isopropyl alcohol a pēlā aku.

8, HPMC i ka noi ʻana o ka pauka putty, ke kuleana nui, inā paha ka hanana o ke kemika?

Pane: HPMC i loko o ka pauka putty, mānoanoa, wai a me ke kūkulu ʻana o ʻekolu mau kuleana. Mānoanoa: hiki ke hoʻomānoanoa ʻia ka cellulose i ka hoʻokuʻu ʻia, i noho like ka hopena i luna a i lalo i ke kuleana o ke kau ʻana i ke kahe. Paʻa wai: e maloʻo mālie ka pauka putty, kōkua ka calcium hina i ka hana o ka hopena wai. Kūkulu: lubrication cellulose, hiki ke hana i ka pauka putty i kūkulu maikaʻi ʻia. ʻAʻole komo ʻo HPMC i kekahi hopena kemika, akā pāʻani wale i kahi kuleana kākoʻo. ʻO ka pauka Putty a me ka wai, ma ka paia, he hopena kemika, ma muli o ka hanauna o nā mea hou, ka paia o ka pauka putty i lalo mai ka paia, wili i loko o ka pauka, a laila hoʻohana, ʻaʻole maikaʻi, no ka mea ua hoʻokumu ʻia kahi mea hou (calcium carbonate). ʻO ka haku mele nui o ka pauka kalipuna hina 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. ʻO ka kalipuna hina i loko o ka wai a me ka ea ma lalo o ka hana a CO2, ka kalipuna kalapona, a me ka wai HPMC wale nō, e kōkua i ka hopena maikaʻi o ka kalipuna hina, ʻaʻole i komo kāna iho i kekahi hopena.

9.HPMC non-ionic cellulose Ether, no laila he aha ka non-ionic?

A: Ma ke ʻano laulā, ʻo nā non-ion he mau mea ia ʻaʻole e ionize i loko o ka wai. ʻO ka ionization ka dissociation o kahi electrolyte i loko o nā ion i hoʻopiʻi ʻia e neʻe manuahi ana 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 - sodium chloride (NaCl) e hoʻoheheʻe ʻia i loko o ka wai a ionizes e hana i nā ion sodium neʻe manuahi (Na+) me kahi uku maikaʻi a me nā ion chloride (Cl) me kahi uku maikaʻi ʻole. ʻO ia hoʻi, ʻaʻole e hoʻokaʻawale ʻo HPMC i loko o ka wai i loko o nā ion i hoʻopiʻi ʻia, akā aia ma ke ʻano he mau molekala.

10. He aha ka mea e pili ana i ka mahana o ka gel o ka hydroxypropyl methyl cellulose?

– Pane: ʻO ka mahana o ka gel oHPMCpili i ka ʻike methoxyl, ʻo ka haʻahaʻa o ka ʻike methoxyl ↓, ʻo ke kiʻekiʻe o ka mahana o ka gel.

11, ʻaʻohe pilina o ka pauka putty a me ka HPMC?

Pane: ʻo ka pauka putty e kulu ana i ka pauka a me ka lehu calcium he pilina nui loa ia, a ʻaʻole pili nui ka HPMC. ʻO ka haʻahaʻa o ka calcium o ka calcium hina a me ka hapa kūpono ʻole o CaO a me Ca(OH)2 i ka calcium hina e hoʻoulu ai i ka hāʻule ʻana o ka pauka. Inā he pilina liʻiliʻi me HPMC, a laila maikaʻi ʻole ka paʻa ʻana o ka wai HPMC, e hoʻoulu ai hoʻi i ka pauka.

12, he aha ka ʻokoʻa o ka hydroxypropyl methyl cellulose i ka wai anuanu a me ka wai wela i ke kaʻina hana?

– Pane: ʻO ke ʻano hoʻonā wai anuanu HPMC ma hope o ka mālama ʻana i ka ʻili glyoxal, hoʻokomo i loko o ka wai anuanu e hoʻopuehu koke ʻia, akā ʻaʻole i hoʻoheheʻe maoli ʻia, piʻi ka mānoanoa, ua hoʻoheheʻe ʻia. ʻAʻole i mālama ʻia ka ʻili me ka glyoxal no ka mea hiki ke hoʻoheheʻe ʻia. Nui ka nui o ka glyoxal, wikiwiki ka hoʻopuehu ʻana, akā lohi ka mānoanoa, liʻiliʻi ka nui, ma ke ʻano ʻē.

13, pehea ke ʻala o ka hydroxypropyl methyl cellulose (HPMC)?

– Pane: Hana ʻia ka HPMC i hana ʻia e ke ʻano solvent me ka toluene a me ka isopropyl alcohol. Inā ʻaʻole maikaʻi loa ka holoi ʻana, e koe ana kekahi ʻono.

14, nā hoʻohana like ʻole, pehea e koho ai i ka hydroxypropyl methyl cellulose (HPMC) kūpono?

– pane: e luhi me ka hoʻopili ʻana o ka pauka keiki: ʻoi aku ka haʻahaʻa o ke koi, viscosity 100 tausani, ʻae, he mea nui e pale i ka wai e kokoke ai. Hoʻopili ʻana i ka mortar: nā koi kiʻekiʻe, nā koi viscosity kiʻekiʻe, 150 tausani e ʻoi aku ka maikaʻi. Hoʻopili ʻana i ka glue: ka pono no nā huahana koke, viscosity kiʻekiʻe.

15.He aha ka inoa kapakapa o ka hydroxypropyl methyl cellulose?

– PANE: Hydroxypropyl Methyl Cellulose, Hoʻopōkole 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.

16.HPMC i ka noi o ka pauka putty, putty pauka pehu i ke kumu?

Pane: HPMC i loko o ka pauka putty, mānoanoa, wai a me ke kūkulu ʻana o ʻekolu mau kuleana. ʻAʻole komo i kekahi hopena. Nā kumu o nā pehu: 1, nui ka wai. 2, ʻaʻole maloʻo ka lalo, ma luna o ka papa scraping, maʻalahi hoʻi e blister.

17. 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 kahi moʻo o nā hopena me ka methane chloride ma ke ʻano he etherifying agent ma hope o ka mālama ʻia ʻana o ka pulupulu i hoʻomaʻemaʻe ʻia me ka alkali. Ma ke ʻano laulā, ʻo ke kekelē o ka pani ʻana he 1.6 ~ 2.0, a ʻokoʻa ka solubility me ke kekelē o ka pani ʻana. No ka nonionic cellulose ether.

(1) ʻO ka paʻa ʻana o ka wai o ka methyl cellulose e pili ana i ka nui o ka hoʻohui ʻana, ka mānoanoa, ka maikaʻi o nā ʻāpana a me ka wikiwiki o ka hoʻoheheʻe ʻana. Ma ke ʻano laulā, hoʻohui nui ka nui, ka liʻiliʻi o ka maikaʻi, ka mānoanoa, a me ka wikiwiki o ka paʻa ʻana o ka wai. I waena o lākou, ʻo ka nui o ka mea hoʻohui ka mea nui loa i ka paʻa ʻana o ka wai, a ʻaʻole kūlike ka mānoanoa me ka paʻa ʻana o ka wai. ʻO ka wikiwiki o ka hoʻoheheʻe ʻana e pili nui ana i ke kekelē hoʻololi ʻana o ka ʻili a me ka maikaʻi o nā ʻāpana o nā ʻāpana cellulose. I loko o nā ethers cellulose i luna, ʻoi aku ka kiʻekiʻe o ka wikiwiki o ka paʻa ʻana o ka wai o ka methyl cellulose a me ka hydroxypropyl methyl cellulose.

(2) Hiki ke hoʻoheheʻe ʻia ka Methyl cellulose i ka wai anuanu, kahi mea paʻakikī ke hoʻoheheʻe ʻia i ka wai wela. He paʻa loa kona hopena wai i loko o ka pH = 3 ~ 12. Loaʻa iā ia ka launa maikaʻi me ka starch, guanidine gum a me nā surfactants he nui. Hana ʻia ka Gelation ke hiki ka mahana i ka mahana gelation.

(3) ʻO ka loli o ka mahana e hoʻopilikia nui i ka nui o ka paʻa ʻana o ka wai o ka methyl cellulose. Ma keʻano laulā, ʻo ke kiʻekiʻe o ka mahana, ʻoi aku ka ʻino o ka paʻa ʻana o ka wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40℃, e ʻoi aku ka ʻino o ka paʻa ʻana o ka wai o ka methyl cellulose, kahi e hoʻopilikia nui ai i ke kūkulu ʻana o ka mortar.

(4) He mana koʻikoʻi ko ka Methyl cellulose i ke kūkulu ʻana a me ka hoʻopili ʻana o ka mortar. ʻO ka "Adhesion" ma ʻaneʻi e pili ana i ka hoʻopili ʻana i ʻike ʻia e ka mea hana ma waena o ka mea hana a me ka substrate paia, ʻo ia hoʻi ke kūpaʻa ʻoki o ka mortar. Nui ka hoʻopili ʻana, nui ka kūpaʻa ʻoki o ka mortar, nui nō hoʻi ka ikaika e pono ai nā limahana i ke kaʻina hana o ka hoʻohana ʻana, a maikaʻi ʻole ke kūkulu ʻana o ka mortar. I nā huahana cellulose ether, aia ka hoʻopili ʻana o ka methyl cellulose ma kahi pae waena.

ʻO HPMC no ka hydroxypropyl methyl cellulose, ua 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 kahi moʻo o nā hopena a hana ʻia me ka non-ionic cellulose i hui pū ʻia me ka ether. ʻO ke kekelē o ka hoʻololi ʻana he 1.2 ~ 2.0. ʻOkoʻa kona mau waiwai me ka hapa o ka methoxy a me ka ʻike hydroxypropyl.

(1) He maʻalahi ka hoʻoheheʻe ʻana o ka Hydroxypropyl methyl cellulose i ka wai anuanu, kahi mea paʻakikī ke hoʻoheheʻe i ka wai wela. Eia nō naʻe, ʻoi aku ka kiʻekiʻe o kona mahana gelation i ka wai wela ma mua o ka methyl cellulose. Ua hoʻomaikaʻi nui ʻia ka solubility o ka methyl cellulose i ka wai anuanu.

(2) Pili ka mānoanoa o ka hydroxypropyl methyl cellulose i kona kaumaha molekala, a ʻo ke kiʻekiʻe o ke kaumaha molekala, ʻo ke kiʻekiʻe o ka mānoanoa. Hoʻopilikia pū ka mahana i ka mānoanoa. E emi ana ka mānoanoa i ka piʻi ʻana o ka mahana. Akā, ʻoi aku ka haʻahaʻa o kona hopena mānoanoa i ka mahana kiʻekiʻe ma mua o ka methyl cellulose. Paʻa ka hopena ke mālama ʻia ma ka mahana o ka lumi.

(3) Paʻa ka Hydroxypropyl methyl cellulose i ka waikawa a me ke kumu, a paʻa loa kona hopena wai ma ka pae pH = 2 ~ 12. ʻAʻole nui ka hopena o ka soda caustic a me ka wai lime i kona mau waiwai, akā hiki i ka alkali ke hoʻolalelale i kona wikiwiki hoʻoheheʻe a hoʻomaikaʻi i ka viscosity. Paʻa ka Hydroxypropyl methyl cellulose i nā paʻakai maʻamau, akā i ka wā e kiʻekiʻe ai ka nui o ka hopena paʻakai, e piʻi aʻe ka viscosity o ka hopena hydroxypropyl methyl cellulose.

(4) ʻO ka paʻa ʻana o ka wai o ka hydroxypropyl methyl cellulose e pili ana i kona nui a me ka viscosity, a ʻoi aku ka kiʻekiʻe o ka nui o ka paʻa ʻana o ka wai o ka hydroxypropyl methyl cellulose ma mua o ka methyl cellulose ma ka nui like.

(5) Hiki ke hoʻohuihui ʻia ka Hydroxypropyl methyl cellulose me nā hui polymer wai-hoʻoheheʻe ʻia e lilo i hopena like a kiʻekiʻe aʻe. E like me ka polyvinyl alcohol, starch ether, vegetable glue a pēlā aku.

(6) ʻOi aku ke kiʻekiʻe o ka hoʻopili ʻana o ka hydroxypropyl methyl cellulose i ke kūkulu ʻana o ka mortar ma mua o ka methyl cellulose.

(7) ʻOi aku ka maikaʻi o ke kūpaʻa ʻana o ka hydroxypropyl methyl cellulose i nā enzyme ma mua o ka methyl cellulose, a ʻoi aku ka haʻahaʻa o ka hiki ke hoʻohaʻahaʻa ʻia ka enzyme solution ma mua o ka methyl cellulose.

18. He aha nā mea e pono e hoʻolohe ʻia i ka hoʻohana pono ʻana o ka pilina ma waena o ka viscosity a me ka mahana o HPMC?

Pane: KA mānoanoa oHPMCua kūlike ʻole ia me ka mahana, ʻo ia hoʻi, piʻi ka mānoanoa me ka emi ʻana o ka mahana. Ke kamaʻilio mākou e pili ana i ka mānoanoa o kahi huahana, ke kamaʻilio nei mākou e pili ana i ka mānoanoa o 2% o ka huahana i loko o ka wai ma 20 degere Celsius.

I ka hoʻohana pono ʻana, ma nā wahi me nā ʻokoʻa nui o ka mahana ma waena o ke kauwela a me ka hoʻoilo, pono e hoʻomaopopo ʻia e hoʻohana i ka viscosity haʻahaʻa i ka hoʻoilo, ʻoi aku ka maikaʻi o ke kūkulu ʻana. A i ʻole, i ka wā e haʻahaʻa ai ka mahana, e piʻi aʻe ka viscosity o ka cellulose, a i ka wā e ʻoki ai, e kaumaha ka manaʻo.

ʻO ka mānoanoa waena: 75000-100000 i hoʻohana nui ʻia no ka putty.

Ke kumu: Mālama maikaʻi i ka wai.

ʻO ke kiʻekiʻe o ka mānoanoa: 150000-200000 ka mea i hoʻohana nui ʻia no ka pauka hoʻopili ʻāpana polystyrene mortar rubber a me nā mortar insulation beads vitrified.

Kumu: kiʻekiʻe ka mānoanoa, ʻaʻole maʻalahi ka hāʻule ʻana o ka palaki, kau ke kahe, hoʻomaikaʻi i ke kūkulu ʻana.

Akā ma ke ʻano laulā, ʻo ke kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, no laila he nui nā hale hana mortar maloʻo, e noʻonoʻo ana i ke kumukūʻai, e hoʻohana i ka cellulose viscosity medium (75000-100000) e pani i ka cellulose viscosity medium a me ka haʻahaʻa (20000-40000) e hōʻemi i ka nui o ka hoʻohui.