E aʻo e pili ana i ka hydroxypropyl methylcellulose

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

Hoʻohana nui ʻia ka HPMC i nā mea kūkulu hale, nā uhi, nā resins synthetic, nā seramika, nā lāʻau lapaʻau, nā meaʻai, nā textiles, nā mahiʻai, nā mea hoʻonaninani, ka paka a me nā ʻoihana ʻē aʻe. Hiki ke hoʻokaʻawale ʻia ka HPMC i ka papa hana ʻoihana, ka papa meaʻai a me ka papa lāʻau lapaʻau e like me kona hoʻohana ʻana.

2. Nui nā ʻano hydroxypropyl methylcellulose. He aha nā ʻokoʻa ma waena o lākou?

Hiki ke hoʻokaʻawale ʻia ka HPMC i ke ʻano koke (brand suffix "S") a me ke ʻano wela-soluble. Puka koke nā ʻano huahana i ka wai anuanu a nalowale i ka wai. I kēia manawa, ʻaʻohe viscosity o ka wai no ka mea ua hoʻopuehu wale ʻia ka HPMC i ka wai a ʻaʻohe hopena maoli. Ma hope o (hoʻoulu) 2 mau minuke, piʻi mālie ka viscosity o ka wai a hoʻokumu ʻia kahi colloid viscous transparent. ʻO nā huahana wela, i ka wai anuanu, hiki 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 ka viscosity a hiki i ka hana ʻana o kahi colloid transparent a viscous.

3. He aha nā ʻano hoʻonā hydroxypropyl methylcellulose?

1. Hiki ke hoʻohuiʻia nā hiʻohiʻona a pau i ka mea ma o ka hui maloʻo;

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

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

4. Inā hiki mai ka ho'oulu 'ana a i 'ole ka wīwī 'ana i ka wā o ka hemo 'ana, no ka lawa 'ole o ka ho'oulu 'ana a i 'ole ho'ohui pono 'ia ke kumu ho'ohālike ma'amau i ka wai anuanu. I kēia manawa, e hoʻoulu koke.

5. Inā hana ʻia nā ʻōhū i ka wā e hoʻoheheʻe ʻia ai, hiki ke waiho ʻia no nā hola 2-12 (ʻo ka manawa kikoʻī e pili ana i ke kūlike o ka hopena) a i ʻole e hoʻoneʻe ʻia e ka hoʻoheheʻe ʻana, kaomi ʻana, a me nā mea ʻē aʻe. hoʻohui ʻia.

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

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

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

3. Ka hoʻouna māmā: Hoʻokumu ʻo HPMC i kahi colloid māmā i loko o ka wai. E nānā i ke kukui uila. ʻOi aku ka nui o ka māmā māmā, ʻoi aku ka maikaʻi o ka permeability, ʻo ia hoʻi he liʻiliʻi nā mea hiki ʻole ke hoʻoheheʻe ʻia i loko. Maikaʻi ka reactor vertical, a e hoʻopuka ka reactor horizontal i kekahi. Akā ʻaʻole hiki ke ʻōlelo ʻia ʻoi aku ka maikaʻi o ka hana ʻana o nā kīʻaha kūpaʻa ma mua o nā ipu aniani. Nui nā kumu e hoʻoholo ai i ka maikaʻi o ka huahana.

4. Kaumaha kikoʻī: ʻOi aku ka nui o ka umekaumaha kikoʻī, ʻoi aku ka maikaʻi o ke kaumaha. ʻOi aku ka nui o ka gravity kikoʻī, ʻoi aku ka kiʻekiʻe o ka hydroxypropyl content. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka hydroxypropyl content, ʻoi aku ka maikaʻi o ka mālama ʻana i ka wai.

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

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

6. He aha ka viscosity o hydroxypropyl methylcellulose?

ʻO ka pauka Putty ma ke ʻano he RMB 100,000, ʻoiai ʻoi aku ka nui o ka mortar. He RMB 150,000 ka maʻalahi e hoʻohana. Eia kekahi, ʻo ka hana koʻikoʻi o ka HPMC ʻo ka mālama ʻana i ka wai, a ukali ʻia e ka mānoanoa. I ka pauka putty, ʻoiai he maikaʻi ka paʻa ʻana o ka wai a 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 piʻi ka viscosity ma luna o 100,000, liʻiliʻi ka hopena o ka viscosity i ka paʻa ʻana o ka wai.

7. He aha nā hōʻailona ʻenehana nui o ka hydroxypropyl methylcellulose?

Hydroxypropyl maʻiʻo

Maʻiʻo methyl

viscosity

Lehu

poho kaumaha maloʻo

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

ʻO nā mea waiwai nui o ka HPMC: ka pulupulu hoʻomaʻemaʻe, ka methyl chloride, propylene oxide, nā mea maka'ē aʻe, ka soda caustic, a me ka toluene acid.

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

I ka pauka putty, hoʻokani ʻo ia i ʻekolu mau hana nui: mānoanoa, mālama wai a me ke kūkulu ʻana. Hiki i ka mānoanoa ke hoʻopololei i ka cellulose a pāʻani i kahi hana hoʻomaha, e mālama i ka hoʻonā ʻaʻahu i luna a i lalo a pale i ka sagging. Paʻa wai: E hoʻomaloʻo mālie i ka pauda putty a kōkua i ka calcium hina e hana ma lalo o ka hana o ka wai. Hiki ke hana: He hopena lubricating ka Cellulose, kahi e hana maikaʻi ai ka pauka putty. ʻAʻole komo ʻo HPMC i nā hopena kemika a he kuleana kākoʻo wale nō.

10. ʻO ka hydroxypropyl methylcellulose he ether cellulose non-ionic, no laila he aha ke ʻano non-ionic?

ʻO ka ʻōlelo maʻamau, ʻaʻole komo nā mea inert i nā hopena kemika.

ʻO CMC (carboxymethylcellulose) he cellulose cationic a e lilo ia i ʻōpala tofu ke ʻike ʻia i ka lehu calcium.

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

ʻO ka mahana gel o HPMC e pili ana i kona ʻano methoxyl. ʻO ka haʻahaʻa o ka methoxyl content, ʻoi aku ka kiʻekiʻe o ka mahana gel.

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

He mea nui kēia! ʻAʻole maikaʻi ka mālama ʻana o ka wai a HPMC.

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 ka ʻano wai anuanu HPMC i ka wai anuanu ma hope o ka mālama ʻana i ka ili me ka glyoxal, akā ʻaʻole ia e hoʻoheheʻe maoli. Piʻi ka viscosity, ʻo ia hoʻi, hemo. ʻAʻole mālama ʻia ke ʻano melt wela me ka glyoxal. Nui ka nui o Glyoxal a hoʻopuehu koke, akā he viscosity lohi a me ka leo liʻiliʻi, a me ka hope.

14. He aha ke ʻala o ka hydroxypropyl methylcellulose?

Hana ʻia ʻo HPMC e ke ʻano solvent me ka toluene a me ka waiʻona isopropyl e like me nā solvents. Inā ʻaʻole i holoi maikaʻi ʻia, loaʻa kekahi ʻala i koe. (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?

ʻO ka pauka Putty: nā koi paʻa wai kiʻekiʻe a me ka maʻalahi o ke kūkulu ʻana (manaʻo ʻia: 7010N)

ʻO ka mīkini paʻipaʻi maʻamau: paʻa wai kiʻekiʻe, kūpaʻa kiʻekiʻe o ka wela, ʻeleʻele koke (papa ʻia: HPK100M)

Hoʻopili paʻa kūkulu: huahana koke, viscosity kiʻekiʻe. (Manaʻo inoa ʻia: HPK200MS)

Gypsum mortar: paʻa wai kiʻekiʻe, ʻeleʻele haʻahaʻa haʻahaʻa, ʻeleʻele koke (papa manaʻo ʻia: HPK600M)

16. He aha ka inoa e ae o ka hydroxypropyl methylcellulose?

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

17. Hoʻohana i ka hydroxypropyl methylcellulose i ka pauka putty. He aha ka mea e hoʻohūhū ai ka pauda putty?

Hoʻokani ʻo HPMC i ʻekolu hana nui i ka pauka putty: mānoanoa, paʻa wai a me ke kūkulu ʻana. ʻO nā kumu o nā bula:

1. E hoʻonui i ka wai.

2. Inā ʻaʻole maloʻo ka lalo, ʻoi aku ka maʻalahi o ke ʻoki ʻana i kahi papa ʻē aʻe ma luna.

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 ke ʻano o nā hopena e hana ai i ka cellulose ether. ʻO 1.6-2.0 ka pae maʻamau o ka hoʻololi, a ʻokoʻa hoʻi ka solubility o nā degere like ʻole. He etera cellulose non-ionic.

(1) ʻO ka paʻa ʻana o ka wai o ka methylcellulose e pili ana i kona nui hoʻohui, viscosity, ʻoi aku ka maikaʻi a me ka helu dissolution. ʻO ka ʻōlelo maʻamau, ʻoi aku ka nui o ka hoʻohui, liʻiliʻi ka liʻiliʻi, kiʻekiʻe ka viscosity, a kiʻekiʻe ka pae paʻa wai. He hopena nui ka nui o ka hoʻohui ʻana i ka nui o ka mālama ʻana i ka wai, a ʻaʻohe pili o ka viscosity me ka nui o ka mālama ʻana i 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. Ma waena o nā eter cellulose i luna, ʻoi aku ka nui o ka paʻa wai o ka methylcellulose a me ka hydroxypropylmethylcellulose.

(2) Hiki ke hoʻoheheʻe ʻia ka methyl cellulose i loko o ka wai anuanu, akā pilikia ka hoʻoheheʻe ʻana i ka wai wela. Paʻa loa kona ʻano wai ma ka laulā o ka pH=3-12, a he kūpono maikaʻi me ka starch a me nā surfactants he nui. Ke piʻi ka mahana i ka gel Ke piʻi ka mahana gelation, e hanaʻia ka gelation.

(3) Hoʻololi koʻikoʻi ka hoʻololi ʻana o ka mahana i ka nui o ka mālama ʻana i ka wai o ka methylcellulose. ʻO ka maʻamau, ʻoi aku ka kiʻekiʻe o ka mahana, ʻoi aku ka maikaʻi o ka paʻa wai. Inā ʻoi aku ka mahana o ka mortar ma mua o 40 degere, e hoʻohaʻahaʻa loa ka paʻa ʻana o ka wai o ka methylcellulose, e hoʻopilikia nui i ke kūkulu ʻana o ka mortar.

(4) He hopena koʻikoʻi ka 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 ke kumu o ka paia, ʻo ia hoʻi, ka pale ʻana o ka mortar. He kiʻekiʻe ka adhesiveness, he kiʻekiʻe ka pale ʻana o ka mortar, a ʻo ka ikaika e koi ʻia e nā limahana i ka wā o ka hoʻohana ʻana he kiʻekiʻe nō hoʻi, no laila ua maikaʻi ʻole ka hana ʻana o ka mortar.