1. Nā ʻano like ʻole
Hydroxypropyl methylcellulose: keʻokeʻo a i ʻole keʻokeʻo keʻokeʻo fibrous a i ʻole ka pauka granular, nona nā ʻano mea like ʻole o ka cellulose i hui ʻia eter. He semi-synthetic, inactive, viscoelastic polymer.
Hydroxyethyl cellulose: (HEC) he keʻokeʻo a māmā melemele, ʻaʻala ʻole, ʻaʻohe mea ʻawaʻawa a i ʻole pauka paʻa, i hoʻomākaukau ʻia e ka etherification o ka cellulose alkaline a me ka ethylene oxide (a i ʻole chloroethanol). No ka non-ionic soluble cellulose ethers.
2. Hoʻohana like ʻole
Hydroxypropyl methylcellulose: Hoʻohana ʻia ma ke ʻano he mānoanoa, dispersant a me ka stabilizer i ka ʻoihana uhi, a loaʻa iā ia ka hoʻohālikelike maikaʻi i ka wai a i ʻole nā mea hoʻoheheʻe organik. E like me ka wehe ʻana i ka pena; ma ke ʻano he dispersant i ka hana ʻana o ka polyvinyl chloride, ʻo ia ka mea kōkua nui no ka hoʻomākaukau ʻana o PVC ma o ka polymerization suspension; hoʻohana nui ʻia ia i ka ʻili, nā huahana pepa, nā huaʻai a me nā mea kanu mālama a me nā ʻoihana textile.
Hydroxyethyl cellulose: hoʻohana ʻia e like me ka mea hoʻopili, surfactant, colloidal protection agent, dispersant, emulsifier a me dispersion stabilizer, a me nā mea ʻē aʻe. a me ka laau lapaau.
3. Solubility ʻokoʻa
Hydroxypropyl methylcellulose: Aneane hiki ʻole ke hoʻoheheʻe ʻia i loko o ka ethanol, ether, a me ka acetone; pehu ia i loko o kahi ʻoluʻolu colloidal maʻemaʻe a i ʻole i ka wai anuanu.
Hydroxyethyl cellulose: loaʻa nā waiwai o ka mānoanoa, hoʻopaneʻe, hoʻopaʻa, emulsifying, dispersing, a me ka mālama ʻana i ka wai. Hiki ke hoʻomākaukau ʻia nā haʻina me nā pae viscosity like ʻole. Loaʻa iā ia ka paʻakai paʻakai maikaʻi loa i nā electrolytes.
Hydroxypropyl methylcellulose (HPMC) Nā waiwai kino a me kemika:
1. Nani: MC he keʻokeʻo a aneane keʻokeʻo fibrous a granular pauka, odorless.
2. Na waiwai: Aneane hiki ole ke hooheheeia ka MC i ka ethanol, ka etera a me ka acetone. Hoʻopuehu a pehu wikiwiki i ka wai wela ma 80 ~ 90 ℃, a hemo koke ma hope o ka hoʻoilo. Paʻa loa ka hopena wai ma ka lumi wela a hiki ke gel i ka wela kiʻekiʻe, a hiki ke loli ka gel me ka hopena me ka mahana. He maikaʻi loa ka wettability, dispersibility, adhesion, thickening, emulsification, paʻa wai a me nā waiwai hana kiʻiʻoniʻoni, a me ka impermeability i ka momona. ʻO ke kiʻiʻoniʻoni i hoʻokumu ʻia he ʻoi aku ka paʻakikī, ka maʻalahi a me ka ʻike. No ka mea he non-ionic, hiki ke hoʻohālikelike me nā emulsifiers ʻē aʻe, akā maʻalahi ka paʻakai a paʻa ka hopena i ka laulā o PH2-12.
3. ʻIke ʻia ka nui: 0.30-0.70g / cm3, ʻoi aku ka nui o 1.3g / cm3.
2. Keʻano hoʻopau:
Hoʻopili pololei ʻia ka huahana MC i ka wai, e agglomerate a laila e hoʻoheheʻe ʻia, akā ua lohi a paʻakikī kēia hoʻoheheʻe ʻia.
1. ʻO ke ʻano wai wela: No ka mea ʻaʻole i hoʻoheheʻe ʻia ka MC i ka wai wela, hiki ke hoʻopuehu ʻia ka MC i ka wai wela i ka pae mua. Ke hoʻomāʻalili ʻia, ʻelua mau ʻano maʻamau i wehewehe ʻia penei:
1). E kau i ka nui o ka wai wela i makemake ʻia i loko o ka ipu a hoʻomehana iā ia ma kahi o 70 ° C. E hoʻohui mālie i ka MC ma lalo o ka hoʻoluliluli ʻana, e hoʻomaka e lana ma luna o ka ʻili o ka wai, a laila e hana mālie i kahi slurry, a hoʻomāalili i ka slurry ma lalo o ka hoʻouluulu.
2). 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 ℃. E hahai i ke ʻano o 1) e hoʻopuehu i ka MC 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 slurry wai wela, e hoʻomaha i ka hui ʻana ma hope o ka hoʻoulu ʻana.
2. ʻO ke ʻano o ka hui ʻana o ka pauka: E hoʻohui i nā ʻāpana pauka MC me ka like a i ʻole ka nui o nā mea pauka ʻē aʻe e hoʻopuehu piha iā lākou ma ka hui ʻana maloʻo, a laila hoʻohui i ka wai e hoʻoheheʻe ʻia, a laila hiki ke hoʻoheheʻe ʻia ka MC me ka ʻole o ka agglomerating.
3. Organic solvent wetting method: pre-disperse or moisten MC me ka organic solvent, e like me ethanol, ethylene glycol a aila paha, a laila hoʻohui i ka wai e hoʻoheheʻe, a laila hiki ke hoʻoheheʻe ʻia ka MC i kēia manawa.
3. Ke kumu:
Hoʻohana nui ʻia kēia huahana i ke kūkulu hale, nā mea hana hale, nā uhi dispersive, nā pepa pepa pepa, nā mea hoʻohui polymerization, nā mea hoʻoneʻe pena, ka ʻili, ka inika, ka pepa, etc. . .
Nā waiwai kino a me nā kemika o ka methyl cellulose (MC):
3. Nānā: MC he keʻokeʻo a ʻaneʻane keʻokeʻo fibrous a granular pauka, ʻaʻohe ʻala.
Nā waiwai: ʻaneʻane hiki ʻole ke hoʻoheheʻe ʻia ka MC i ka ethanol piha, ka etera a me ka acetone. Hoʻopuehu a pehu wikiwiki i ka wai wela o 80 ~ 90> ℃, a hoʻoheheʻe koke ma hope o ka hoʻoilo. Paʻa loa ka hopena wai i ka mahana maʻamau a hiki ke gel i ka wela kiʻekiʻe, a hiki ke loli ka gel me ka hopena me ka mahana. He maikaʻi loa ka wettability, dispersibility, adhesion, thickening, emulsification, paʻa wai a me nā waiwai hana kiʻiʻoniʻoni, a me ka impermeability i ka momona. ʻO ke kiʻiʻoniʻoni i hoʻokumu ʻia he ʻoi aku ka paʻakikī, ka maʻalahi a me ka ʻike. No ka mea he non-ionic, hiki ke hoʻohālikelike me nā emulsifiers ʻē aʻe, akā maʻalahi ka paʻakai a paʻa ka hopena i ka laulā o PH2-12.
1.Apparent haʻahaʻa: 0.30-0.70g/cm3, ʻano haʻahaʻa ma kahi o 1.3g/cm3.
ʻAha. Keʻano hoʻopau:
MC> Hoʻohui pololei ʻia ka huahana i ka wai, e hoʻohui a hoʻoheheʻe ʻia, akā lohi a paʻakikī kēia hoʻoheheʻe ʻana. Manaʻo ʻia nā ʻano hana hoʻopau ʻekolu, a hiki i nā mea hoʻohana ke koho i ke ala kūpono loa e like me nā kūlana hoʻohana:
1. ʻO ke ʻano wai wela: No ka mea ʻaʻole i hoʻoheheʻe ʻia ka MC i ka wai wela, hiki ke hoʻopuehu ʻia ka MC i ka wai wela i ka pae mua. Ke hoʻomāʻalili ʻia, ʻelua mau ʻano maʻamau i wehewehe ʻia penei:
1). E kau i ka nui o ka wai wela i makemake ʻia i loko o ka ipu a hoʻomehana iā ia ma kahi o 70 ° C. E hoʻohui mālie i ka MC ma lalo o ka hoʻoluliluli ʻana, e hoʻomaka e lana ma luna o ka ʻili o ka wai, a laila e hana mālie i kahi slurry, a hoʻomāalili i ka slurry ma lalo o ka hoʻouluulu.
2). 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 hahai i ke kaʻina hana ma 1) e hoʻopuehu i ka MC e hoʻomākaukau i kahi slurry wai wela; a laila e hoʻohui i ke koena o ka wai anuanu a i ʻole ka wai hau i loko o ka slurry wai wela, e hoʻomaha i ka hui ʻana ma hope o ka hoʻoulu ʻana.
ʻO ke ʻano o ka hui ʻana o ka pauka: maloʻo ka hui ʻana i nā ʻāpana pauka MC me ka like a i ʻole ka nui o nā mea pauka ʻē aʻe e hoʻopuehu piha iā lākou, a laila hoʻohui i ka wai e hoʻoheheʻe iā lākou, a laila hiki ke hoʻoheheʻe ʻia ka MC me ka ʻole o ka agglomeration.
3. ʻO ke ʻano o ka hoʻoheheʻe ʻia ʻana o ke kino: hoʻopuehu a hoʻomaʻemaʻe paha i ka MC me kahi mea hoʻoheheʻe kūlohelohe, e like me ka ethanol, ethylene glycol a i ʻole ka aila, a laila hoʻohui i ka wai e hoʻoheheʻe. A laila hiki ke hoʻoheheʻe ʻia ka MC.
ʻelima. Ke kumu:
Hoʻohana nui ʻia kēia huahana i ke kūkulu hale, nā mea hana hale, nā uhi dispersive, nā pepa pepa pepa, nā mea hoʻohui polymerization, nā mea hoʻoneʻe pena, ka ʻili, ka inika, ka pepa, etc. . .
1. ʻOihana hana: Ma ke ʻano he mea hoʻopaʻa wai a me ka hoʻopaneʻe ʻana i ka pahu sima, hana ia i ka mortar pumpable. Hoʻohana ʻia ma ke ʻano he mea paʻa i ka plaster, plaster, putty pauka a i ʻole nā mea kūkulu hale e hoʻomaikaʻi ai i ka pālahalaha a hoʻolōʻihi i ka manawa hana. Hiki ke hoʻohana ʻia no ka hoʻopili ʻana i nā tile seramika, marble, plastic decor, paste enhancer, a hiki ke hoʻemi i ka nui o ka sima. ʻO nā waiwai paʻa wai o ka HPMC e pale i ka slurry mai ka haki ʻana ma muli o ka maloʻo wikiwiki ʻana ma hope o ka noi ʻana, a hoʻonui i ka ikaika ma hope o ka paʻakikī.
2. ʻO ka ʻoihana hana keramika: hoʻohana nui ʻia e like me ka mea hoʻopaʻa i ka hana ʻana i nā huahana ceramic.
3. ʻOihana pena: Ma ke ʻano he mānoanoa, dispersant a me ka stabilizer i ka ʻoihana pena, he kūpono maikaʻi i ka wai a i ʻole nā mea hoʻoheheʻe organik. E like me ka mea wehe pena.
4. Pa'i 'īnika: Ma ke 'ano he mānoanoa, dispersant a me ka stabilizer i loko o ka 'oihana inika, 'o ia ka 'olu'olu maika'i i ka wai a i 'ole nā mea ho'ohehe'e organic.
5. Plastics: hoʻohanaʻia e like me nā mea hoʻokuʻu mold, softeners, lubricants, etc.
6. Polyvinyl chloride: Hoʻohana ʻia ia ma ke ʻano he dispersant i ka hana ʻana o ka polyvinyl chloride a ʻo ia ka mea kōkua nui no ka hoʻomākaukau ʻana i ka PVC ma o ka polymerization suspension.
7. Nā mea ʻē aʻe: Hoʻohana nui ʻia kēia huahana i ka ʻili, nā huahana pepa, ka mālama ʻana i nā huaʻai a me nā mea kanu a me nā ʻoihana textile.
8. ʻOihana lāʻau lapaʻau: nā mea uhi; nā mea kiʻiʻoniʻoni; nā mea polymer e hoʻoponopono ana i ka helu no ka hoʻomākaukau hoʻokuʻu lohi; stabilizers; nā mea hana hoʻomaha; nā mea hoʻopaʻa papa; mea mānoanoa. ʻO nā pōʻino olakino: palekana kēia huahana a ʻaʻohe mea ʻawaʻawa, a hiki ke hoʻohana ʻia ma ke ʻano he meaʻai meaʻai , ʻAʻohe wela, ʻaʻohe huhū i ka ʻili a me ka pili ʻana o ka membrane mucous. ʻO ka mea maʻamau i manaʻo ʻia he palekana (FDA1985), ʻo ka ʻae ʻia i kēlā me kēia lā he 25mg/kg (FAO/WHO 1985), a pono e hoʻohana ʻia nā mea pale i ka wā o ka hana.
Ka hopena o ke kaiapuni: Hōʻalo i ka hoʻolei wale ʻana i mea e hoʻohaumia ai ka ea ma ka lele ʻana o ka lepo.
Nā pōʻino kino a me nā kemika: Hōʻalo i ka hoʻopili ʻana me nā kumu ahi, a pale i ka hoʻokumu ʻana o ka lepo nui i loko o kahi wahi paʻa e pale ai i nā pōʻino pahū.
Hoʻohana wale ʻia kēia mea ma ke ʻano he mānoanoa, ʻaʻole maikaʻi no ka ʻili.
Ka manawa hoʻouna: Nov-24-2021