ʻO ka hoʻonā HPMC

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

Pane:HPMChoʻohana nui ʻia i nā mea kūkulu hale, nā uhi, nā resins synthetic, ceramics, lāʻau lapaʻau, meaʻai, textile, mahiʻai, mea hoʻonaninani, paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i: papa hana, papa meaʻai a me ka papa olakino e like me ka hoʻohana ʻana. I kēia manawa ʻo ka homemade ka hapa nui o ke kūkulu ʻana, i ka pae kūkulu, nui 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 mortar sima a me ke kāpili.

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

Pane :HPMC hiki ke maheleia i ka hikiwawe a me ka wela soluble, hikiwawe huahana, i loko o ke anuanu wai koke hoopuehu, nalo i loko o ka wai, i keia manawa ka wai i ole viscosity, no ka mea, HPMC ua hoopuehu wale i ka wai, aole maoli dissolution. Ma kahi o 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi colloid viscous transparent. Heat soluble huahana, i loko o ka wai anuanu agglomeration, hiki ke i loko o ka wai wela, hoʻopuehu koke, nalo i loko o ka wai wela, a hiki i ka mahana hāʻule i kekahi mahana, viscosity lohi, a hiki i ka hookumu ana o ka malamalama viscous colloid. Hiki ke hoʻohana wale ʻia ke ʻano hoʻoheheʻe wela i ka pauka putty a me ka mortar, i ke kāpili wai a me ka uhi ʻana, hiki ke ʻike ʻia ke ʻano agglomeration, ʻaʻole hiki ke hoʻohana. ʻO ke kumu hoʻoheheʻe koke, ʻoi aku ka nui o ka laulā noi, i ka hoʻoluhi ʻia me ka pauka keiki a me ka mortar, a i ke kāpili wai a me ka uhi ʻana, hiki ke hoʻohana ʻia nā mea a pau, ʻaʻohe mea kapu.

3, hydroxypropyl methyl cellulose (HPMC) dissolution hana i ka poe?

– pane: ke ano o ka hoopau wai wela: no ka mea, aole i hooheheeia ka HPMC i ka wai wela, no laila hiki ke hoopuehu mua ia ka HPMC iloko o ka wai wela, a hemo koke i ka hooluolu ana, ua weheweheia na ano maa mau penei:

1) E hoʻopiha i ka pahu me ka nui o ka wai wela e like me kou makemake a wela iā ia ma kahi o 70 ℃. Hoʻohui mālie ʻia ka Hydroxypropyl methyl cellulose ma lalo o ka hoʻoulu ʻana lohi, a lana ka HPMC ma ka ʻili o ka wai, a laila hana mālie i kahi slurry, i hoʻoluʻu ʻia ma lalo o ka hoʻoulu ʻana.

2) E hoʻohui i 1/3 a i ʻole 2/3 o ka nui o ka wai i makemake ʻia i loko o ka pahu a hoʻomehana iā 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 wai anuanu i ka slurry wai wela a hoʻomaha i ka hui ʻana ma hope o ka hoʻoulu ʻana.

ʻO ka pauka hui ʻana: ʻO ka pauka HPMC a me ka nui o nā mea pauda ʻē aʻe, hui pū ʻia me ka blender, a laila e hoʻohui i ka wai e hoʻoheheʻe, i kēia manawa hiki i ka HPMC ke hoʻoheheʻe, ʻaʻole agglomerate, no ka mea, ʻo kēlā me kēia kihi liʻiliʻi, kahi pauka HPMC liʻiliʻi, wai. e hemo koke. - Ke hoʻohana nei nā mea hana i ka pauka putty a me ka mortar i kēia ʻano hana. [Hydroxypropyl methyl cellulose (HPMC) i hoʻohana ʻia ma ke ʻano he mea mānoanoa a me ka mea hoʻopaʻa wai i loko o ka mortar pauka putty.

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

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

5, hydroxypropyl methyl cellulose (HPMC) viscosity mea pono?

- pane: ʻoluʻolu me ka pauda keiki ʻoi aku ka maʻamau 100 tausani, ʻoi aku ka kiʻekiʻe o ke koi i ka mortar, makemake 150 tausani 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 pauka putty, ʻoiai ka maikaʻi o 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, ke ʻoi aku ka viscosity ma mua o 100 tausani, ʻaʻole nui ka viscosity o ka mālama ʻana i ka wai.

6, hydroxypropyl methyl cellulose (HPMC) he aha nā hōʻailona ʻenehana nui? .

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.

7, hydroxypropyl methyl cellulose (HPMC) he aha nā mea maka 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.

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

Pane: HPMC i ka pauka putty, ka mānoanoa, ka wai a me ke kūkulu ʻana i ʻekolu mau 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. Ka paʻa wai: e hoʻomaloʻo mālie i ka pauka putty, kōkua ka calcium hina i ka hana o ka wai. Hana: cellulose lubrication, hiki ke hana i ka pauka putty maikaʻi ke kūkulu ʻana. ʻAʻole komo ʻo HPMC i nā hopena kemika, akā he kuleana kākoʻo wale nō. ʻO ka pauda putty a me ka wai, ma ka paia, he hopena kemika, no ka hana ʻana o nā mea hou, ʻo ka paia o ka pauda putty i lalo mai ka paia, lepo i pauda, ​​a laila hoʻohana, ʻaʻole maikaʻi, no ka mea ua hana i mea hou. (calcium carbonate). ʻO ka hui nui o ka pauka calcium hina ka hui ʻana o Ca(OH)2,CaO a me kahi mea liʻiliʻi o CaCO3,CaO+H2O=Ca(OH)2 — Ca(OH)2+CO2=CaCO3↓+H2O ʻO ka calcium hina i loko. ka wai a me ka ea ma lalo o ka hana o CO2, calcium carbonate, a me ka HPMC wai wale nō, kōkua hina calcium maikaʻi pane, kona iho 'aʻole i komo i kekahi pane.

9.HPMC non-ionic cellulose ether, 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.

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

- Pane: ʻO ka mahana gel oHPMCpili i ka methoxyl content, ʻo ka haʻahaʻa o ka methoxyl content ↓, ʻoi aku ka kiʻekiʻe o ka mahana gel.

11, putty pauda pauka a me HPMC ʻaʻohe pilina?

Pane: ʻO ka pauka putty e hoʻoheheʻe i ka pauka ma ka nui a me ka maikaʻi o ka lehu calcium he pilina nui loa, 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 liʻiliʻi me HPMC, a laila ʻilihune ka paʻa ʻana o ka wai HPMC, e hoʻopiʻi pū i ka pauka.

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

- 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 ke ʻano.

13, hydroxypropyl methyl cellulose (HPMC) honi pehea ia?

- 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.

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

- pane: e hōʻoluʻolu me ka hoʻohana ʻana i ka pauka keiki: ʻoi aku ka haʻahaʻa o ke koi, viscosity 100 tausani, ʻoi, pono ia e pale i ka wai e kokoke. ʻO ka noi mortar: nā koi kiʻekiʻe, nā koi viscosity kiʻekiʻe, 150 tausani i ʻoi aku ka maikaʻi. ʻO ka hoʻohana ʻana i ke kāpili: ka pono o nā huahana koke, viscosity kiʻekiʻe.

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

– PANE: Hydroxypropyl Methyl Cellulose, 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.

16.HPMC i ka hoʻohana ʻana i ka pauka putty, putty pauda bubble he aha ke kumu?

Pane: HPMC i ka pauka putty, ka mānoanoa, ka wai a me ke kūkulu ʻana i ʻekolu hana. 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.

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 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. Hana ʻia ka Gelation 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 no ka 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.

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

Pane: KA viscosity oHPMCʻo 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.

Hoʻohana nui ʻia ka viscosity kiʻekiʻe: 150000-200000 no ka polystyrene particle insulation mortar rubber powder and vitrified beads insulation mortar.

Ke kumu: kiʻekiʻe viscosity, ʻaʻole maʻalahi ka mortar e hāʻule, kahe e kau ana, hoʻomaikaʻi i ke kūkulu ʻana.

Akā ʻo ka ʻōlelo maʻamau, ʻoi aku ka kiʻekiʻe o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai, no ka nui o nā ʻoihana mortar maloʻo, e noʻonoʻo ana i ke kumukūʻai, e hoʻohana i ka cellulose viscosity medium (75000-100000) e hoʻololi i ka cellulose viscosity medium a me haʻahaʻa (20000-40000) e hōʻemi i ka nui. o ka hoohui.