1. inoa huahana:
01. Ka inoa kemika: hydroxypropyl methylcellulose
02. Ka inoa piha ma ka ʻōlelo Pelekania: Hydroxypropyl Methyl Cellulose
03. ʻŌlelo Pelekane: HPMC
2. Nā waiwai kino a me kemika:
01. Nānā: keʻokeʻo a keʻokeʻo paha.
02. Ka nui o ka ʻāpana;ʻoi aku ka nui o ka hala o 100 mesh ma mua o 98.5%;ʻOi aku ka nui o ka hele ʻana o 80 mesh ma mua o 100%.
03. Ka wela o ka carbonization: 280～300 ℃
04. ʻAno mānoanoa: 0.25～0.70/cm3 (maʻa mau ma kahi o 0.5g/cm3), umekaumaha kikoʻī 1.26-1.31.
05. Ke ana wela: 190 ~ 200 ℃
06. ʻO ke kuʻekuʻe ʻana o ka ʻili: 2% ka hopena wai he 42 ~ 56dyn/cm.
07. Hiki ke hoʻoheheʻe ʻia i loko o ka wai a me kekahi mau mea hoʻoheheʻe, e like me ka ethanol/wai, propanol/wai, trichloroethane, a pēlā aku ma nā ʻāpana kūpono.
ʻO nā haʻina wai ʻeleʻele.ʻO ke aniani kiʻekiʻe, ka hana paʻa, ka mahana gel o nā huahana me nā kikoʻī like ʻole
ʻOkoʻa, hoʻololi ka solubility me ka viscosity, ʻoi aku ka haʻahaʻa o ka viscosity, ʻoi aku ka nui o ka solubility, ka hana ʻana o nā kikoʻī like ʻole o ka hydroxypropyl methylcellulose (HPMC) he mau ʻokoʻa, ʻaʻole i pili ka dissolution o hydroxypropyl methylcellulose (HPMC) i ka wai i ka hopena waiwai PH. .
08. Me ka emi o ka methoxyl maʻiʻo, piʻi ka gel kiko, ka wai solubility emi, a me ka ili o ka hydroxypropyl methylcellulose (HPMC) emi pū kekahi.
09. Hydroxypropyl methylcellulose (HPMC) no hoi i hiki mānoanoa, paakai kū'ē, haʻahaʻa lehu pauka, PH paʻa, wai paʻa, dimensional paʻa, maikaʻi kiʻiʻoniʻoni waiwai, a me ka laulā huahelu o ka enzyme kū'ē, dispersion ano e like me ka wahine a me ka adhesiveness.
ʻEkolu, hydroxypropyl methylcellulose (HPMC) hiʻohiʻona:
Hoʻohui ka huahana i nā waiwai kino a me nā kemika e lilo i huahana kūʻokoʻa me nā hoʻohana lehulehu, a penei nā ʻano waiwai like ʻole:
(1) Paʻa wai: Hiki iā ia ke paʻa i ka wai ma nā wahi porous e like me nā papa sima pā a me nā pōhaku lepo.
(2) Hoʻokumu kiʻiʻoniʻoni: Hiki iā ia ke hana i kahi kiʻiʻoniʻoni akaka, paʻakikī a palupalu me ka pale ʻana i ka aila maikaʻi loa.
(3) Hiki ke hoʻoheheʻe ʻia: Hiki ke hoʻoheheʻe ʻia ka huahana i loko o 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 organik.
(4) Thermal gelation: Ke hoʻomehana ʻia ka wai wai o ka huahana, e hana ia i gel, a lilo ka gel i hoʻokumu ʻia i mea hoʻonā ma hope o ka hoʻoilo.
(5) Ka hana ʻili: Hāʻawi i ka hana ʻili i ka hopena e hoʻokō i ka emulsification pono a me ka colloid pale, a me ka hoʻopaʻa ʻana o ka pae.
(6) Hoʻokuʻu: Hiki iā ia ke pale i ka ua o nā ʻāpana paʻa, no laila ke kāohi nei i ka hoʻokumu ʻana o ka sediment.
(7) Colloid pale: hiki iā ia ke pale i nā droplets a me nā ʻāpana mai ka coalescing a i ʻole coagulating.
(8) Adhesiveness: Hoʻohana ʻia i mea hoʻopili no nā puaʻa, nā huahana paka, a me nā huahana pepa, he hana maikaʻi loa ia.
(9) Hoʻoheheʻe wai: Hiki ke hoʻoheheʻe ʻia ka huahana i ka wai i nā nui like ʻole, a ua kaupalena ʻia kona ʻano kiʻekiʻe e ka viscosity.
(10) Non-ionic inertness: ʻO ka huahana he non-ionic cellulose ether, ʻaʻole i hui pū me nā paʻakai metala a i ʻole nā iona ʻē aʻe e hana i nā precipitates insoluble.
(11) Acid-base paʻa: kūpono no ka hoʻohana i loko o ka laulā o PH3.0-11.0.
(12) ʻAʻole ʻono a ʻala ʻole, ʻaʻole pili i ka metabolism;hoʻohana ʻia ma ke ʻano he meaʻai a me nā mea hoʻohui lāʻau, ʻaʻole lākou e hoʻopili ʻia i ka meaʻai a ʻaʻole e hāʻawi i nā calorie.
4. Hydroxypropyl methylcellulose (HPMC) hana hoʻoheheʻe:
Ke hoʻohui pololei ʻia nā huahana hydroxypropyl methylcellulose (HPMC) i ka wai, e hoʻoheheʻe lākou a laila e hoʻoheheʻe ʻia, akā lohi a paʻakikī kēia dissolution.ʻEkolu mau ʻano hoʻoheheʻe i manaʻo ʻia ma lalo nei, a hiki i nā mea hoʻohana ke koho i ke ala kūpono loa e like me kā lākou hoʻohana ʻana:
1. Ke ano wai wela: No ka hemo ole o ka hydroxypropyl methylcellulose (HPMC) i ka wai wela, hiki ke hoopuehuia ka hana mua o ka hydroxypropyl methylcellulose (HPMC) i ka wai wela, a laila, i ka wa e maalili ai, ua hoakakaia ekolu A typical method. penei:
1).E hoʻokomo i ka nui o ka wai wela i makemake ʻia i loko o ka ipu a hoʻomehana iā ia ma kahi o 70 ° C.Hoʻohui mālie i ka hydroxypropyl methylcellulose (HPMC) ma lalo o ka hoʻoulu ʻana, hoʻomaka ka hydroxypropyl methylcellulose (HPMC) e lana ma luna o ka ʻili o ka wai, a laila hana mālie i kahi slurry, hoʻoluʻu i ka slurry ma lalo o ka hoʻoulu ʻana.
2).E hoʻomoʻa i 1/3 a i ʻole 2/3 (ka nui i makemake ʻia) o ka wai i loko o ka pahu a hoʻomehana iā 70 ° C.E like me ke ʻano o 1), e hoʻopuehu i ka hydroxypropyl methylcellulose (HPMC) e hoʻomākaukau i ka slurry wai wela A laila e hoʻohui i ke koena o ka wai anuanu a i ʻole ka wai hau i loko o ka pahu, a laila e hoʻohui i ka wai wela hydroxypropyl methylcellulose (HPMC) i ʻōlelo ʻia ma luna. wai anuanu, a hoʻoulu, a laila hoʻomāalili i ka hui.
3).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 ° C.E like me ke ʻano o ka 1), e hoʻopuehu i ka hydroxypropyl methylcellulose (HPMC) e hoʻomākaukau i ka slurry wai wela;Hoʻohui ʻia ke koena o ka wai anuanu a i ʻole ka wai hau i ka slurry wai wela a hoʻomaha ʻia ka hui ʻana ma hope o ka hoʻoulu ʻana.
2. ʻO ke ʻano o ka hui ʻana o ka pauka: ʻo ka hydroxypropyl methylcellulose (HPMC) pauka pauka a me ka nui like a i ʻole ka nui o nā mea pauka ʻē aʻe e hoʻopuehu piha ʻia e ka hui ʻana maloʻo, a laila hoʻoheheʻe ʻia i loko o ka wai, a laila hiki ke hoʻoheheʻe ʻia ka hydroxypropyl methylcellulose Base cellulose (HPMC) me ka ʻole agglomeration. .3. ʻO keʻano o ka hoʻoheheʻeʻana i nā meaʻeleʻele: pre-disperse a iʻole ka wai hydroxypropyl methylcellulose (HPMC) me nā mea hoʻohenehene e like me ka ethanol, ethylene glycol a iʻole kaʻaila, a laila e hoʻoheheʻe i ka wai.I kēia manawa, hiki ke hoʻoheheʻe ʻia ka hydroxypropyl methylcellulose ( HPMC).
5. Hoʻohana nui o ka hydroxypropyl methylcellulose (HPMC):
Hiki ke hoʻohana ʻia ka Hydroxypropyl methylcellulose (HPMC) ma ke ʻano he mānoanoa, dispersant, emulsifier a me ka mea hana kiʻiʻoniʻoni.Hiki ke hoʻohana ʻia kāna mau huahana ʻenehana i kēlā me kēia lā, nā mea uila, nā resins synthetic, ke kūkulu ʻana a me nā uhi.
1. Hoʻokuʻu polymerization:
I ka hana ʻana i nā resins synthetic e like me polyvinyl chloride (PVC), polyvinylidene chloride a me nā copolymers ʻē aʻe, hoʻohana pinepine ʻia ka polymerization hoʻokuʻu a pono e hoʻopaʻa i ka hoʻokuʻu ʻana o nā monomers hydrophobic i ka wai.Ma keʻano he polymer hiki ke hoʻoheheʻe wai, hydroxypropyl methylcellulose (HPMC) nā huahana he hana maikaʻi loa o ka honua a hana ma ke ʻano he mea pale colloidal, hiki ke pale pono i ka hōʻuluʻulu ʻana o nā ʻāpana polymer.Eia kekahi, ʻoiai ʻo ka hydroxypropylmethylcellulose (HPMC) he polymer hiki ke hoʻoheheʻe ʻia i ka wai, hiki ke hoʻoheheʻe iki ʻia i loko o nā monomers hydrophobic a hoʻonui i ka porosity o nā monomers mai kahi i hana ʻia ai nā ʻāpana polymeric, i hiki iā ia ke hāʻawi i nā polymers me ka mana maikaʻi loa e wehe i nā monomer koena. a hoʻonui i ka absorption o nā plasticizers.
2. I ka hana ʻana i nā mea kūkulu hale, hiki ke hoʻohana ʻia ka hydroxypropyl methylcellulose (HPMC) no:
1).ʻO ka mea hoʻopili a me ka mea hoʻoheheʻe no ka lipine pili gypsum;
2).ʻO ka hoʻopaʻa ʻana i nā pōhaku lepo sima, nā tile a me nā kumu;
3).stucco i hoʻopaʻa ʻia i ka papa pōhaku;
4).ʻO ka pāpaʻi hoʻoheheʻe ʻia ma muli o ka sima;
5).Ma ke ʻano o ka pena a me ka wehe ʻana i ka pena.
Ka manawa hoʻouna: Mei-24-2023