ʻO ka hoʻohana ʻana i ka hydroxypropyl methylcellulose HPMC i ka ʻoihana hale

Hydroxypropyl methyl cellulose HPMC nui loa i ekolu viscosities, HPMC-100000, HPMC-150000, a me HPMC-200000 viscosity. Ma ka ʻōlelo maʻamau, hoʻohana pinepine ʻia ka hydroxypropyl methyl cellulose me ka viscosity o 100,000 i ka hana ʻana i ka pauka putty pā o loko a me waho. He 200,000 ka viscosity o ka cellulose a hoʻohana ʻia i nā mea kūkulu hale e like me ka mortar maloʻo, ka lepo pōhaku maʻalahi, ka lepo diatom, a me nā uhi pā. Loaʻa i ka huahana ka hopena paʻa wai, ka hopena mānoanoa maikaʻi, ka maikaʻi paʻa a me ke kumu kūʻai kūpono.

Hoʻohana nui ʻia ka Hydroxypropyl methylcellulose HPMC i ka ʻoihana hale. Hiki ke hoʻohana ʻia ka nui o ka cellulose e like me ka retarder, ka mea mālama wai, ka mānoanoa a me ka mea hoʻopili. He kuleana koʻikoʻi ka cellulose etera i ka mortar hui maloʻo maʻamau, ka mīkini hoʻoheheʻe ʻia o ka paia o waho, ka mīkini hoʻomaʻemaʻe ponoʻī, ka pauka maloʻo maloʻo adhesive, ka tile seramika e hoʻopaʻa ai i ka mortar pauka maloʻo, ka putty hale hana kiʻekiʻe, kūʻē i loko a me waho. putty pā, etc. , mortar hui maloʻo wai ʻole, gypsum plaster, wīwī keʻokeʻo mea hoʻomaʻemaʻe, nā ʻāpana lahilahi a me nā mea ʻē aʻe. mea waiwai. He hopena koʻikoʻi ko lākou i ka paʻa ʻana o ka wai, nā koi wai, maikaʻi, hoʻopaneʻe a me ka hana o nā ʻōnaehana stucco. ʻO nā ethers cellulose maʻamau i hoʻohana ʻia i ke kahua kūkulu he HEC, HPMC, CMC, PAC, MHEC, etc.

Nonionic wai-soluble cellulose ethers mea pono mea hoʻohui hale ma muli o ko lakou mau waiwai paʻa, dispersion paʻa, a me ka wai paʻa hiki. Hoʻohana ʻia ʻo HPMC, MC a i ʻole EHEC i ka hapa nui o ka hana sima a i ʻole gypsum, e like me ka mortar masonry, mortar sima, ka uhi ʻana o ka sima, ka gypsum, ka hui ʻana o ka cementitious a me ka emulsion putty, a me nā mea ʻē aʻe. ka adhesion , he mea nui loa ia no ka plaster, tile cement a me ka putty. No ka sima, ʻaʻole he retarder wale nō ka HEC, akā he mea mālama wai hoʻi. Loaʻa iā HEHPC kēia kumu. Hoʻohana pinepine ʻia nā cellulose ethers i hui pū me nā gluconates i loko o nā morta e like me nā mea hoʻohui retarder waiwai. Hoʻohana pinepine ʻia ʻo MC a i ʻole HEC a me CMC ma ke ʻano he ʻāpana paʻa o ka wallpaper. Hoʻohana pinepine ʻia nā eter cellulose viscosity medium a i ʻole kiʻekiʻe i nā mea hoʻopili pepa kiʻi a me nā mea kūkulu hale.

Hoʻohui ʻia ka huahana Hydroxypropyl methylcellulose HPMC i nā waiwai kino a me nā kemika e lilo i huahana kū hoʻokahi me nā hoʻohana lehulehu. Eia na waiwai like ole.

(1) Ka paʻa ʻana o ka wai: Hiki iā ia ke hoʻopaʻa i ka makū ma nā wahi porous e like me nā papa sima pā a me nā pōhaku lepo.

(2) Nā waiwai hana kiʻiʻoniʻoni: Hiki iā ia ke hana i kahi kiʻiʻoniʻoni akaka, paʻakikī, palupalu me ke kūpaʻa aila maikaʻi loa.

(3) Hiki ke hoʻoheheʻe ʻia: Hiki ke hoʻoheheʻe ʻia kēia huahana i kekahi mau mea hoʻoheheʻe kūlohelohe, e like me ka ethanol/wai, propanol/wai, dichloroethane a me kahi ʻōnaehana solvent i haku ʻia me ʻelua mau mea hoʻoheheʻe kūlohelohe i nā ʻāpana kūpono.

(4) Thermal gelation: Ke hoʻomehana ʻia ka wai wai o kēia huahana, hana ia i ka gel a lilo i mea hoʻonā ma hope o ka hoʻoilo.

(5) Ka hana o ka ʻili: Hāʻawi i ka hana ʻili i ka hopena e hoʻokō ai i ka emulsification colloidal kūpono a me ka pale, a me ka hoʻopaʻa ʻana o ka pae.

(6) Mea hoʻokuʻu: Hiki i ka Hydroxypropyl methylcellulose ke pale i nā ʻāpana paʻa mai ka hoʻopaʻa ʻana, a laila e pale ai i ka hoʻokumu ʻana o nā precipitates.

(7) Colloid pale: Hiki iā ia ke pale i nā droplets a me nā ʻāpana mai ka hui ʻana a i ʻole condensing.

(8) Adhesion: Hoʻohana ʻia ma ke ʻano he mea hoʻopili no nā puaʻa, nā huahana paka, a me nā huahana pepa, he mau hana maikaʻi loa ia.

(9) Ka wai hoʻoheheʻe: Hiki ke hoʻoheheʻe ʻia kēia huahana i ka wai ma nā ʻano like ʻole, a ʻo ka nui o ka hoʻopaʻa ʻana i kaupalena ʻia e ka viscosity.

(10) Nonionic inertness: ʻO kēia huahana he nonionic cellulose ether a ʻaʻole hui pū me nā paʻakai metala a i ʻole nā ​​​​iona ʻē aʻe e hoʻokumu i nā precipitates insoluble.

(11) Acid-base paʻa: kūpono no ka hoʻohana ʻana i loko o ka pae pH o 3.0-11.0.

(12) ʻAʻole ʻono a ʻala ʻole, ʻaʻole pili i ka metabolism; hoʻohana ʻia ma ke ʻano he mea hoʻohui i ka meaʻai a me ka lāʻau lapaʻau, ʻaʻole lākou e hoʻopili ʻia i ka meaʻai a ʻaʻole hāʻawi i nā calorie.

No laila, noho ka hydroxypropyl methylcellulose HPMC i kahi kūlana koʻikoʻi i ka ʻoihana kūkulu, a e hoʻohana nui ʻia ka cellulose ʻōmaʻomaʻo i ka ʻoihana hana. ʻO ke kūlana kiʻekiʻe, nā kumukūʻai makemake a me nā lawelawe ʻoi aku ka maikaʻi o kā mākou cellulose a me nā mea hana pauka latex i hahai mau ai. ʻO ka lā e hiki mai ana e pili ana i ka manaʻo ʻoihana ʻo "ke ola ma ka maikaʻi, ka hoʻomohala ʻana e ka ʻepekema a me ka ʻenehana, ka mākeke ma ka kaulana, a me ka maikaʻi e ka hoʻokele". ʻO kā mākou hydroxypropyl methylcellulose, redispersible latex pauka, a me hydroxyethyl cellulose hāʻawi i nā huahana kiʻekiʻe i nā mea kūʻai aku.