Hydroxypropyl methyl cellulose HPMC pilikia maʻamau

1. He aha ka hoʻohana nui o ka hydroxypropyl methyl cellulose?

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 ka papa hana ʻoihana, ka papa meaʻai a me ka helu olakino e like me ka hoʻohana ʻana.

2. Ua maheleia ka Hydroxypropyl methyl cellulose i kekahi mau ano, heaha ka like ole o lakou?

HPMC hiki ke maheleia i hikiwawe (brand suffix "S") a me ka wela soluble, koke nā 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 ia i loko o ka wai, aole maoli dissolution. Ma kahi o 2 mau minuke, piʻi mālie ka viscosity o ka wai, e hana ana i kahi gel maʻemaʻe a paʻa. Heat soluble huahana, clumped i loko o ka wai anuanu, hiki wawe ka hoʻopuehu i loko o ka wai wela, nalo i loko o ka wai wela, e like me ka mahana hāʻule i kekahi mahana (e like me ka gel wela o ka huahana), viscosity lohi, a hiki i ke kukulu ana o ka malamalama viscous colloid.

3. Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methyl cellulose maʻalahi a intuitively?
1) keʻokeʻo, ʻoiai ʻaʻole hiki i ka keʻokeʻo ke hoʻoholo inā he maikaʻi ʻo HPMC, a inā e hoʻohui ʻia i ke kaʻina hana keʻokeʻo, e hoʻopilikia i kona ʻano, akā, maikaʻi nā huahana maikaʻi loa.
2) ka maikaʻi: ʻO ka maikaʻi o ka HPMC he 80 mesh a me 100 mesh, 120 kumu i emi iho, ʻoi aku ka maikaʻi.
3) māmā transmittance: HPMC i loko o ka wai, e hana ana i ka malamalama colloid, ike i kona malamalama transmittance, o ka nui o ka penetrability o ka maikai, wehewehe insolubles emi i loko, vertical reaction kettle ma na degere maikai, e hoouna aku i kekahi o ka horizontal reaction kettle, akā, hiki ole ke wehewehe i ka vertical kettle production quality 'oi aku ka maikaʻi ma mua o ka lie kettle production, he nui nā kumu e hoʻoholo ai i ka maikaʻi o ka huahana.
4) ka hoʻohālikelike: ʻoi aku ka nui o ka ʻāpana, ʻoi aku ka maikaʻi ma mua o ka mea nui, ma muli o ke kiʻekiʻe o ka hydroxypropyl i loko, ʻoi aku ka nui o ka hydroxypropyl content, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.

4. He aha nā ʻano hoʻoheheʻe o hydroxypropyl methyl cellulose?
1) Hiki ke hoʻohui ʻia nā hiʻohiʻona a pau i loko o ka mea ma ke ʻano hui maloʻo;
2) Pono e hoʻohui pololei ʻia i ka wai wela maʻamau, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ka hoʻopuehu wai anuanu, ma hope o ka hoʻohui ʻana i nā minuke 10-90 e mānoanoa (stir stir stir)
3) Hiki ke hoʻoheheʻe ʻia nā hiʻohiʻona maʻamau ma hope o ka hui ʻana a me ka hoʻopuehu ʻana me ka wai wela a hoʻohui i ka wai anuanu ma hope o ka hoʻoulu ʻana a me ke anuanu;
4) I ka wā e hoʻoheheʻe ʻia ai, inā hiki ke ʻano o ka agglomerating, no ka mea ʻaʻole lawa ka hoʻoulu ʻana a i ʻole ke hoʻohui pololei ʻia ke kumu hoʻohālike maʻamau i ka wai anuanu. I kēia manawa, pono e hoʻoulu koke.
5) Inā loaʻa nā ʻōhū i ka wā o ka hemo ʻana, hiki ke hoʻoneʻe ʻia ma ke kū ʻana no 2-12 mau hola (ʻo ka manawa kikoʻī e pili ana i ka kūlike o ka hopena) a i ʻole ma ka hoʻoheheʻe ʻana a me ke kaomi ʻana, a i ʻole ma ka hoʻohui ʻana i ka nui o ka defoaming agent.

5 hydroxypropyl methyl cellulose i ka nui o ka pauda putty?
ʻO ka HPMC i ka hoʻohana maoli ʻana i ka nui, ma ke ʻano o ke ea, ka mahana, ka maikaʻi o ka calcium hina hina, ka pauka putty a me nā koi o nā mea kūʻai aku o nā ʻano like ʻole, a aia nā ʻokoʻa a puni, ma waena o 4-5 kilograms.

6. He aha ka viscosity kūpono o ka hydroxypropyl methyl cellulose?
ʻO ka pauka Putty ka mea maʻamau 100000 hiki, ʻoi aku ka kiʻekiʻe o nā koi mortar, i ka 150000 maikaʻi wale nō, a ʻo ka HPMC ʻoi aku ka nui o ka paʻa ʻana o 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 (7-8), hiki nō hoʻi, ʻoiaʻiʻo, ʻoi aku ka nui o ka viscosity, ʻoi aku ka maikaʻi o ka paʻa wai pili, ke ʻoi aku ka viscosity ma mua o 100,000, ʻaʻole nui ka viscosity o ka paʻa ʻana o ka wai.

7. He aha nā mea waiwai nui o ka hydroxypropyl methyl cellulose?
HPMCʻO nā mea waiwai nui: ka pulupulu hoʻomaʻemaʻe, chloromethane, propylene oxide, nā mea maka'ē aʻe, papa alkali, acid toluene.

8. Hydroxypropyl methyl cellulose i ka hoʻohana ʻana i ka pauka putty, ke kuleana nui, inā kemika?
I ka pauka putty, ka mānoanoa, ka mālama ʻana i ka wai a me ke kūkulu ʻana i ʻekolu mau hana. ʻO ka mānoanoa, cellulose hiki ke mānoanoa a hiki i ka hoʻokuʻu ʻia ʻana, no laila e mau ka hoʻonā ʻana 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.

9 .hydroxypropyl methyl cellulose he non-ionic cellulose ether, no laila he aha ka non-ionic?
Ma ka ʻōlelo a ka poʻe kamaʻāina, ʻaʻole komo nā mea inert i nā hopena kemika.
ʻO ka CMC (carboxymethyl cellulose) he cationic cellulose, no laila e lilo ka calcium hina i koena pi.

10. He aha nā hōʻailona ʻenehana nui o ka hydroxypropyl methyl cellulose?
Hydroxypropyl maʻiʻo
Maʻiʻo methyl
viscosity
lehu
Hoʻemi paona maloʻo

11. He aha ka pili i ka mahana gel o ka hydroxypropyl methyl cellulose?
ʻO ka mahana gel o HPMC e pili ana i ka methoxyl content, ʻo ka haʻahaʻa o ka methoxyl content, ʻoi aku ka kiʻekiʻe o ka mahana gel.

12 ka pauda putty kulu pauda a me ka pilina hydroxypropyl methyl cellulose?
Inā maikaʻi ʻole ka mālama ʻana o ka wai i ka HPMC, e hoʻoulu ʻia ka pauda.

13 hydroxypropyl methyl cellulose i ka hoʻohana ʻana i ka pauka putty, putty pauda bubble he aha ke kumu?
ʻO ka HPMC i ka pauka putty, ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana i ʻekolu mau kuleana, ke kumu o ka ʻōpū:
1. ) Hoʻohui nui ʻia ka wai.
2.) ʻAʻole maloʻo ka papa lalo, a laila e ʻoki i kahi papa ma luna o ia mea, a maʻalahi hoʻi e pohu.

14. He aha ka ʻokoʻa ma waena o ka hydroxypropyl methyl cellulose hikiwawe ka wai anuanu a me ka wela i ka hana hana?
ʻO ka HPMC wai anuanu ʻano hoʻonā koke ma hope o ka mālama ʻana i ka ili o ka glyoxal, 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.

15. He aha ka mea e pili ana i ka honi hydroxypropyl methyl cellulose?
Hana ʻia ʻo HPMC ma ke ʻano solvent me ka toluene a me ka waiʻona isopropyl. Inā ʻaʻole maikaʻi loa ka holoi ʻana, loaʻa kekahi ʻono i koe. (ʻO ka hoʻihoʻi ʻana i ka neutralization ke kaʻina hana nui no ka ʻala)

16. Pehea e koho ai i ka hydroxypropyl methyl cellulose kūpono no nā hoʻohana like ʻole?
ʻO ka pauka Putty: koʻikoʻi paʻa wai kiʻekiʻe, ka hoʻohālikelike ʻana i ke kūkulu ʻana (ka papa i ʻōlelo ʻia: 75AX100000)
ʻO ka mīkini paʻipaʻi maʻamau: paʻa wai kiʻekiʻe, kūpaʻa kiʻekiʻe o ka wela, viscosity koke (papa ʻia: 75AX150000)
Ka hoʻohanaʻana i ke kāpili hale: nā huahana koke, viscosity kiʻekiʻe. (Ka helu hōʻailona manaʻo ʻia: 75AX200000S)
ʻO Gypsum mortar: paʻa wai kiʻekiʻe, ʻeleʻele a haʻahaʻa haʻahaʻa, viscosity koke (papa ʻia: 75AX75000)

17. He aha ka inoa kapakapa no ka hydroxypropyl methyl cellulose?
HPMC a i ʻole MHPC alias hydroxypropyl methyl cellulose, cellulose hydroxypropyl methyl ether.

18. He aha ka ʻokoʻa ma waena o ka hydroxypropyl methyl cellulose a meMC?
ʻO MC ka methyl cellulose, hoʻomaʻemaʻe ʻia ka pulupulu ma hope o ka mālama ʻana i ka alkali, methane chloride ma ke ʻano he etherifying agent, ma o ke ʻano o nā reactions a hana ʻia me ka cellulose ether, ka nui o ka hoʻololi ʻana he 1.6-2.0, ʻokoʻa ke ʻano o ka solubility hoʻololi, no ka non-ionic 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. ʻO ka maʻamau, nui ka nui o ka hoʻohui, liʻiliʻi ka liʻiliʻi, nui ka viscosity, kiʻekiʻe ka nui o ka mālama ʻana i ka wai, ʻoi aku ka nui o ka hoʻohui ʻana i ka nui o ka mālama ʻana i ka wai, ʻaʻole haʻahaʻa ka viscosity a me ka pae paʻa wai ma mua o ka pilina. ʻO ka methyl cellulose a me ka hydroxypropyl methyl cellulose i loko o kekahi mau cellulose ether i ʻoi aku ka nui o ka paʻa wai.
(2) Hiki ke hoʻoheheʻe ʻia ka methyl cellulose i loko o ka wai anuanu, paʻakikī ka wai wela e hoʻoheheʻe ʻia, ʻo kona ʻano wai i ka pH = 3-12 mau paʻa, a me ka starch, a me nā mea ʻē aʻe, a he nui nā surfactants i kūpono maikaʻi, i ka wā e hiki ai ka mahana i ka mahana gelation, e loaʻa ke ʻano o ka gelation.
(3) E hoʻololi koʻikoʻi ka hoʻololi ʻana i ka wai i ka nui o ka mālama ʻana i ka wai o ka methyl cellulose, maʻamau, ʻoi aku ka 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 degere, e 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)Methyl celluloseloaʻa i ka mana kūpono i ke kūkulu ʻana a me ka pili ʻana o ka mortar. ʻO ka hoʻopili ʻana ma aneʻi e pili ana i ka ikaika adhesive i manaʻo ʻia ma waena o ka mea paahana a me ka substrate o ka pā e ka mea hana, 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.