E aʻo e pili ana i ka hydroxypropyl methylcellulose

1. He aha ka hoʻohana nui ʻana o ka hydroxypropyl methylcellulose?

Hoʻohana nui ʻia ʻo HPMC i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā keramika, nā lāʻau lapaʻau, nā meaʻai, nā lole, ka mahiʻai, nā mea hoʻonani, ka paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i nā papa ʻoihana, nā papa meaʻai a me nā papa lāʻau lapaʻau e like me kāna hoʻohana.

2. Aia kekahi mau ʻano hydroxypropyl methylcellulose. He aha nā ʻokoʻa ma waena o lākou?

Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke (hōʻailona hope "S") a me ke ʻano wela-hoʻoheheʻe ʻia. Hoʻopuehu koke nā huahana ʻano koke i ka wai anuanu a nalowale i loko o ka wai. I kēia manawa, ʻaʻohe viscosity o ka wai no ka mea ua hoʻopuehu wale ʻia ka HPMC i loko o ka wai a ʻaʻohe hopena maoli. Ma hope o (ke kāwili ʻana) 2 mau minuke, piʻi mālie ka viscosity o ka wai a hoʻokumu ʻia kahi colloid viscous moakaka. Hiki i nā huahana wela-hoʻoheheʻe ʻia, i loko o ka wai anuanu, ke hoʻopuehu koke i ka wai wela a nalowale i ka wai wela. Ke hāʻule ka mahana i kahi mahana (e like me ka mahana gel o ka huahana), ʻike mālie ʻia ka viscosity a hiki i ka hoʻokumu ʻia ʻana o kahi colloid moakaka a viscous.

3. He aha nā ʻano hana hoʻonā hydroxypropyl methylcellulose?

1. Hiki ke hoʻohui ʻia nā hiʻohiʻona āpau i ka mea ma o ka hui maloʻo ʻana;

2. Pono e hoʻohui pololei ʻia i ka hopena wai mahana maʻamau. ʻOi aku ka maikaʻi o ka hoʻohana ʻana i ke ʻano hoʻopuehu wai anuanu. Ma hope o ka hoʻohui ʻana, hiki i ka mānoanoa i loko o 10-90 mau minuke (e hoʻoulu, e hoʻoulu, e hoʻoulu)

3. No nā hiʻohiʻona maʻamau, e hoʻoulu a hoʻopuehu me ka wai wela mua, a laila e hoʻohui i ka wai anuanu e hoʻoheheʻe ma hope o ka hoʻoulu ʻana a me ka hoʻomaʻalili ʻana.

4. Inā hana ʻia ka hoʻohuihui a i ʻole ka ʻōwili ʻana i ka wā e hoʻoheheʻe ʻia ai, no ka mea ʻaʻole lawa ka hoʻoulu ʻana a i ʻole ua hoʻohui pololei ʻia ke kumu hoʻohālike maʻamau i ka wai anuanu. I kēia manawa, e hoʻoulu koke.

5. Inā hoʻoulu ʻia nā pehu i ka wā o ka hoʻoheheʻe ʻana, hiki ke waiho ʻia no 2-12 mau hola (ʻo ka manawa kikoʻī e pili ana i ke kūlike o ka hopena) a i ʻole e wehe ʻia ma ka vacuum extraction, pressurization, a pēlā aku, a hiki ke hoʻohui ʻia kahi nui kūpono o ka mea defoaming.

4. Pehea e hoʻoholo ai i ka maikaʻi o ka hydroxypropyl methylcellulose me ka maʻalahi a me ka naʻauao?

1. Keʻokeʻo. ʻOiai ʻaʻole hiki i ke keʻokeʻo ke hoʻoholo inā maikaʻi ka HPMC a ʻaʻole paha, a ʻo ka hoʻohui ʻana i nā mea hoʻokeʻokeʻo i ka wā o ke kaʻina hana e hoʻopilikia i kona maikaʻi, ʻo ka hapa nui o nā huahana maikaʻi he keʻokeʻo maikaʻi.

2. Fineness: ʻO ka fineness HPMC ma ke ʻano laulā he 80 mesh a me 100 mesh, ma lalo o 120, ʻoi aku ka maikaʻi o ka maikaʻi.

3. Ka hoʻoili ʻana o ka mālamalama: Hoʻokumu ʻo HPMC i kahi colloid moakaka i loko o ka wai. E nānā i ka hoʻoili ʻana o ka mālamalama. ʻO ka nui o ka hoʻoili ʻana o ka mālamalama, ʻoi aku ka maikaʻi o ka permeability, ʻo ia hoʻi he emi nā mea hiki ʻole ke hoʻoheheʻe ʻia i loko. Ma ke ʻano laulā, maikaʻi ka reactor vertical, a e hoʻopuka kekahi i ka reactor horizontal. Akā, ʻaʻole hiki ke ʻōlelo ʻia he ʻoi aku ka maikaʻi o ka hana ʻana o nā kettles vertical ma mua o nā kettles horizontal. Nui nā mea e hoʻoholo ai i ka maikaʻi o ka huahana.

4. Ke kaumaha kikoʻī: ʻO ke kiʻekiʻe o ke kaumaha kikoʻī, ʻoi aku ka maikaʻi o ke kaumaha. ʻO ke kiʻekiʻe o ke kaumaha kikoʻī, ʻoi aku ka kiʻekiʻe o ka nui o ka hydroxypropyl. Ma keʻano laulā, ʻo ke kiʻekiʻe o ka nui o ka hydroxypropyl, ʻoi aku ka maikaʻi o ka paʻa ʻana o ka wai.

5. ʻEhia ka nui o ka hydroxypropyl methylcellulose i hoʻohana ʻia i loko o ka pauka putty?

ʻOkoʻa ka nui o ka HPMC i hoʻohana ʻia i nā noi maoli mai kēlā wahi a i kēia wahi, ma ke ʻano laulā, aia ma waena o 4-5 kg, ma muli o ke aniau, ka mahana, ka maikaʻi o ka lehu calcium kūloko, ka pauka putty a me nā koi maikaʻi o ka mea kūʻai aku.

6. He aha ka mānoanoa o ka hydroxypropyl methylcellulose?

ʻO ke kumukūʻai maʻamau o ka pauka putty he RMB 100,000, ʻoiai ʻoi aku ka kiʻekiʻe o nā koi o ka mortar. He RMB 150,000 ke kumukūʻai no ka maʻalahi o ka hoʻohana ʻana. Eia kekahi, ʻo ka hana nui o ka HPMC ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa. I loko o ka pauka putty, inā maikaʻi ka mālama ʻana i ka wai a haʻahaʻa ka mānoanoa (7-8), hiki nō hoʻi. ʻOiaʻiʻo, ʻo ka nui o ka mānoanoa, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai. Ke ʻoi aku ka mānoanoa ma mua o 100,000, ʻaʻole nui ka hopena o ka mānoanoa i ka mālama ʻana i ka wai.

7. He aha nā ʻōkuhi loea nui o ka hydroxypropyl methylcellulose?

Ka nui o ka hydroxypropyl

ʻO ka nui o ka methyl

mānoanoa

Lehu

pohō kaumaha maloʻo

8. He aha nā mea nui o ka hydroxypropyl methylcellulose?

ʻO nā mea maka nui o HPMC: pulupulu i hoʻomaʻemaʻe ʻia, methyl chloride, propylene oxide, nā mea maka ʻē aʻe, caustic soda, a me ka waikawa toluene.

9. ʻO ka noi a me ka hana nui o ka hydroxypropyl methylcellulose i ka pauka putty, he kemika anei ia?

I loko o ka pauka putty, ʻekolu mau hana nui kāna: ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana. Hiki i ka mānoanoa ke hoʻomānoanoa i ka cellulose a pāʻani i kahi hana hoʻomaha, e mālama ana i ka hopena like i luna a i lalo a pale i ka sagging. Paʻa wai: E hoʻomaloʻo mālie i ka pauka putty a kōkua i ka calcium hina e pane ma lalo o ka hana a ka wai. Hana: Loaʻa i ka Cellulose kahi hopena lubricating, kahi e hana ai ka pauka putty i ka hana maikaʻi. ʻAʻole komo ʻo HPMC i kekahi mau hopena kemika a pāʻani wale i kahi hana kākoʻo.

10. He ʻetera cellulose non-ionic ka Hydroxypropyl methylcellulose, no laila he aha ke ʻano non-ionic?

Ma keʻano laulā, ʻaʻole komo nā mea inert i nā hopena kemika.

He cellulose cationic ka CMC (carboxymethylcellulose) a e lilo ia i ʻōpala tofu ke hoʻopili ʻia i ka lehu calcium.

11. He aha ka pili o ka mahana gel o ka hydroxypropyl methylcellulose?

Pili ka mahana o ka gel o HPMC i kona ʻike methoxyl. ʻO ka haʻahaʻa o ka ʻike methoxyl, ʻo ke kiʻekiʻe o ka mahana o ka gel.

12. Aia kekahi pilina ma waena o ka pauka putty a me ka hydroxypropyl methylcellulose?

He mea nui kēia! ʻAʻole paʻa ka wai o HPMC a e hoʻoulu ai i ka pauka.

13. He aha ka ʻokoʻa o ke kaʻina hana ma waena o ka wai anuanu a me ka wai wela o ka hydroxypropyl methylcellulose?

Hoʻopuehu koke ʻia ke ʻano wai anuanu HPMC i loko o ka wai anuanu ma hope o ka mālama ʻana i ka ʻili me ka glyoxal, akā ʻaʻole ia e hoʻoheheʻe maoli. Piʻi ka mānoanoa, ʻo ia hoʻi, hoʻoheheʻe ia. ʻAʻole mālama ʻia ka ʻili me ka glyoxal no ke ʻano hoʻoheheʻe wela. He nui ka nui o Glyoxal a hoʻopuehu koke ʻia, akā he lohi ka mānoanoa a he liʻiliʻi ka nui, a ʻo ka hope.

14. He aha ke ʻala o ka hydroxypropyl methylcellulose?

ʻO ka HPMC i hana ʻia e ke ʻano solvent ua hana ʻia me ka toluene a me ka isopropyl alcohol ma ke ʻano he solvents. Inā ʻaʻole holoi maikaʻi ʻia, e koe ana kekahi ʻala. (ʻO ka neutralization a me ka hana hou ʻana he hana koʻikoʻi no ka ʻala)

15. Pehea e koho ai i ka hydroxypropyl methylcellulose kūpono no nā hoʻohana like ʻole?

Pauka Putty: nā koi paʻa wai kiʻekiʻe a me ka maʻalahi o ke kūkulu ʻana (brand i ʻōlelo ʻia: 7010N)

ʻO ka mortar sima maʻamau: paʻa wai kiʻekiʻe, kūpaʻa wela kiʻekiʻe, mānoanoa koke (papa i manaʻo ʻia: HPK100M)

Hoʻopili ʻana i ke kāpili kūkulu: huahana koke, mānoanoa kiʻekiʻe. (Lama i manaʻo ʻia: HPK200MS)

ʻO ka palai Gypsum: paʻa wai kiʻekiʻe, mānoanoa waena-haʻahaʻa, mānoanoa koke (pae i manaʻo ʻia: HPK600M)

16. He aha ka inoa ʻē aʻe o ka hydroxypropyl methylcellulose?

ʻIke ʻia ʻo HPMC a i ʻole MHPC ʻo hydroxypropyl methylcellulose a me hydroxypropyl methylcellulose ether.

17. Ka hoʻopili ʻana o ka hydroxypropyl methylcellulose i loko o ka pauka putty. He aha ke kumu e huʻa ai ka pauka putty?

ʻEkolu kuleana nui o HPMC i ka pauka putty: ka mānoanoa, ka paʻa ʻana o ka wai a me ke kūkulu ʻana. ʻO nā kumu no nā pehu:

1. E hoʻohui i ka wai nui loa.

2. Inā ʻaʻole maloʻo ka lalo, ʻo ke kahakaha ʻana i kahi papa ʻē aʻe ma luna e hoʻoulu maʻalahi i nā pehu.

18. He aha ka ʻokoʻa ma waena o ka hydroxypropyl methylcellulose a me MC:

Hana ʻia ʻo MC, methyl cellulose, mai ka pulupulu i hoʻomaʻemaʻe ʻia ma hope o ka mālama ʻana i ka alkali, me ka hoʻohana ʻana i ka methane chloride ma ke ʻano he etherifying agent, a me kahi moʻo o nā hopena e hana ai i ka cellulose ether. ʻO ke kekelē maʻamau o ka pani ʻana he 1.6-2.0, a ʻokoʻa hoʻi ka solubility o nā kekelē like ʻole o ka pani ʻana. He cellulose ether non-ionic ia.

(1) ʻO ka paʻa ʻana o ka wai o ka methylcellulose 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, nui ka nui o ka hoʻohui ʻana, liʻiliʻi ka maikaʻi, kiʻekiʻe ka mānoanoa, a kiʻekiʻe ka wikiwiki o ka paʻa ʻana o ka wai. He mana nui ka nui o ka hoʻohui ʻana i ka wikiwiki o ka paʻa ʻana o ka wai, a ʻaʻohe pili o ka mānoanoa me ka wikiwiki o 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. Ma waena o nā ethers cellulose i luna, ʻoi aku ka kiʻekiʻe o ka paʻa ʻana o ka wai o ka methylcellulose a me ka hydroxypropylmethylcellulose.

(2) Hiki ke hoʻoheheʻe ʻia ka Methyl cellulose i ka wai anuanu, akā e pilikia ana i ka hoʻoheheʻe ʻana i ka wai wela. He paʻa loa kona hopena wai ma ka pae o ka pH = 3-12, a he kūpono maikaʻi me ka starch a me nā surfactants he nui. Ke hiki ka mahana i ka gel Ke piʻi ka mahana o ka gelation, e hana ʻia ka gelation.

(3) E hoʻopilikia nui nā loli o ka mahana i ka nui o ka paʻa ʻana o ka wai o ka methylcellulose. Ma keʻano laulā, ʻo ke kiʻekiʻe o ka mahana, ʻoi aku ka ʻino o ka nui o ka paʻa ʻana o ka wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40 degere, e hōʻino nui ʻia ka paʻa ʻana o ka wai o ka methylcellulose, e hoʻopilikia nui ana i ke kūkulu ʻana o ka mortar.

(4) He hopena koʻikoʻi ko Methylcellulose i ke kūkulu ʻana a me ka hoʻopili ʻana o ka mortar. ʻO ka hoʻopili ʻana ma ʻaneʻi e pili ana i ka hoʻopili ʻana ma waena o ka mea hana noi a ka mea hana a me ka mea kumu paia, ʻo ia hoʻi, ke kūpaʻa ʻoki o ka mortar. Kiʻekiʻe ka hoʻopili ʻana, kiʻekiʻe ke kūpaʻa ʻoki o ka mortar, a kiʻekiʻe nō hoʻi ka ikaika e pono ai nā limahana i ka wā e hoʻohana ai, no laila ʻaʻole maikaʻi ka hana kūkulu o ka mortar.