1. Makhalidwe osiyanasiyana
Hydroxypropyl methylcellulose: woyera kapena woyera fibrous kapena granular ufa, wa zosiyanasiyana non-ionic cellulose osakaniza ethers.Ndi semi-synthetic, osagwira ntchito, viscoelastic polima.
Hydroxyethyl cellulose: (HEC) ndi yoyera kapena yopepuka yachikasu, yopanda fungo, yopanda poizoni kapena yolimba ya ufa, yokonzedwa ndi etherification ya cellulose yamchere ndi ethylene oxide (kapena chloroethanol).Ndi a non-ionic soluble cellulose ethers.
2. Ntchito zosiyanasiyana
Hydroxypropyl methylcellulose: Amagwiritsidwa ntchito ngati thickener, dispersant ndi stabilizer mu makampani ❖ kuyanika, ndipo ali bwino ngakhale m'madzi kapena organic solvents.Monga chochotsera utoto;monga dispersant kupanga polyvinyl kolorayidi, ndi waukulu wothandiza wothandizila pokonzekera PVC ndi kuyimitsidwa polymerization;amagwiritsidwanso ntchito kwambiri m'makampani a zikopa, mapepala, kusunga zipatso ndi ndiwo zamasamba komanso mafakitale a nsalu.
Hydroxyethyl mapadi: ntchito monga zomatira, surfactant, colloidal zoteteza wothandizila, dispersant, emulsifier ndi dispersion stabilizer, etc. Iwo ali osiyanasiyana ntchito mu zokutira, inki, ulusi, utoto, papermaking, zodzoladzola, mankhwala, mchere processing, mafuta m'zigawo ndi mankhwala.
3. Kusungunuka kosiyana
Hydroxypropyl methylcellulose: Pafupifupi osasungunuka mu ethanol, ether, ndi acetone;imafufuma kukhala njira yowoneka bwino kapena yothimbirira pang'ono ya colloidal m'madzi ozizira.
Ma cellulose a Hydroxyethyl: ali ndi mphamvu zokulitsa, kuyimitsa, kumangiriza, kutulutsa, kubalalitsa, ndi kusunga chinyezi.Mayankho okhala ndi ma viscosity osiyanasiyana amatha kukonzedwa.Ili ndi kusungunuka kwabwino kwa mchere ku electrolyte.
Hydroxypropyl methylcellulose (HPMC) Katundu wathupi ndi mankhwala:
1. Maonekedwe: MC ndi woyera kapena pafupifupi woyera fibrous kapena granular ufa, wopanda fungo.
2. Katundu: MC imakhala pafupifupi yosasungunuka mu ethanol, etha ndi acetone.Imabalalitsa ndikufufuma mwachangu m'madzi otentha pa 80 ~ 90 ℃, ndipo imasungunuka mwachangu ikazizira.Njira yamadzimadzi imakhala yokhazikika kutentha kwa chipinda ndipo imatha kutentha kwambiri, ndipo gel osakaniza amatha kusintha ndi kutentha.Ili ndi wettability kwambiri, dispersibility, adhesion, thickening, emulsification, madzi posungira ndi filimu kupanga katundu, komanso impermeability kuti mafuta.Kanema wopangidwa ali ndi kulimba kwambiri, kusinthasintha komanso kuwonekera.Chifukwa si-ionic, imatha kukhala yogwirizana ndi ma emulsifiers ena, koma ndiyosavuta kutulutsa mchere ndipo yankho lake ndi lokhazikika pamtundu wa PH2-12.
3. Kuwoneka kowoneka bwino: 0.30-0.70g / cm3, kachulukidwe ndi pafupifupi 1.3g / cm3.
2. Njira yochotsera:
The MC mankhwala mwachindunji anawonjezera madzi, izo agglomerate ndiyeno kupasuka, koma kuvunda ndi pang'onopang'ono ndi zovuta. Njira zitatu zotsatirazi Kutha akusonyeza, ndipo wosuta akhoza kusankha njira yabwino kwambiri malinga ndi mmene ntchito:
1. Njira yamadzi otentha: Popeza MC simasungunuka m'madzi otentha, MC imatha kumwazikana m'madzi otentha pagawo loyamba.Pambuyo pozizira, njira ziwiri zodziwika bwino zimafotokozedwa motere:
1).Ikani madzi otentha ofunikira mumtsuko ndikutenthetsa pafupifupi 70 ° C.Pang'onopang'ono onjezani MC pansi pa chipwirikiti pang'onopang'ono, yambani kuyandama pamwamba pa madzi, kenako pang'onopang'ono pangani slurry, ndikuziziritsa slurry pansi pa mukubwadamuka.
2).Onjezani 1/3 kapena 2/3 ya kuchuluka kwa madzi ofunikira mumtsuko ndikutenthetsa mpaka 70 ℃.Tsatirani njira ya 1) kumwazikana MC kukonzekera madzi otentha slurry;kenaka yonjezerani madzi otsala otsala a madzi ozizira kapena madzi oundana Mumadzi otentha slurry, kuziziritsa kusakaniza mutatha kuyambitsa.
2. Ufa kusakaniza njira: Sakanizani MC ufa particles ndi ofanana kapena okulirapo kuchuluka kwa zinthu zina powdery mokwanira kumwazikana iwo ndi youma kusanganikirana, ndiyeno kuwonjezera madzi kupasuka, ndiye MC akhoza kusungunuka popanda agglomerating.
3. Organic zosungunulira zosungunulira njira: chisanadze kumwazikana kapena moisten MC ndi zosungunulira organic, monga Mowa, ethylene glycol kapena mafuta, ndiyeno kuwonjezera madzi kupasuka, ndiye MC akhoza kusungunuka bwino pa nthawi ino.
3. Cholinga:
Mankhwalawa amagwiritsidwa ntchito kwambiri pomanga zomanga, zomangira, zokutira dispersive, phala wallpaper, polymerization zina, zochotsa utoto, zikopa, inki, pepala, etc. monga thickeners, zomatira, madzi posungira wothandizira, filimu kupanga wothandizira, Excipients, etc. .Mwachitsanzo, amagwiritsidwa ntchito ngati chomangira, chokhuthala ndi kusunga madzi m’zomangira, monga chopangira filimu ndi kukhuthala m’mafakitale opaka, ndipo amagwiritsidwanso ntchito kwambiri m’minda monga kubowola mafuta ndi mafakitale a tsiku ndi tsiku. .
Zakuthupi ndi zamankhwala za methyl cellulose (MC):
3. Maonekedwe: MC ndi woyera kapena pafupifupi woyera fibrous kapena granular ufa, wopanda fungo.
Katundu: MC imakhala yosasungunuka mu ethanol, ether ndi acetone.Imabalalitsa ndikufufuma mwachangu m'madzi otentha a 80 ~ 90> ℃, ndipo imasungunuka mwachangu ikazizira.Njira yamadzimadzi imakhala yokhazikika pa kutentha kwabwino ndipo imatha kutentha kwambiri, ndipo gel osakaniza amatha kusintha ndi kutentha.Ili ndi wettability kwambiri, dispersibility, adhesion, thickening, emulsification, madzi posungira ndi filimu kupanga katundu, komanso impermeability kuti mafuta.Kanema wopangidwa ali ndi kulimba kwambiri, kusinthasintha komanso kuwonekera.Chifukwa si-ionic, imatha kukhala yogwirizana ndi ma emulsifiers ena, koma ndiyosavuta kutulutsa mchere ndipo yankho lake ndi lokhazikika pamtundu wa PH2-12.
1.Kuwoneka kwapakati: 0.30-0.70g / cm3, kachulukidwe ndi pafupifupi 1.3g / cm3.
Chachiwiri.Njira yothetsera:
MC> The mankhwala mwachindunji anawonjezera madzi, izo agglomerate ndiyeno kupasuka, koma kuvunda ndi wodekha kwambiri ndi zovuta.Njira zitatu zotsatsira zotsatirazi zikuperekedwa, ndipo ogwiritsa ntchito amatha kusankha njira yabwino kwambiri malinga ndi momwe amagwiritsidwira ntchito:
1. Njira yamadzi otentha: Popeza MC simasungunuka m'madzi otentha, MC imatha kumwazikana m'madzi otentha pagawo loyamba.Pambuyo pozizira, njira ziwiri zodziwika bwino zimafotokozedwa motere:
1).Ikani madzi otentha ofunikira mumtsuko ndikutenthetsa pafupifupi 70 ° C.Pang'onopang'ono onjezani MC pansi pa chipwirikiti pang'onopang'ono, yambani kuyandama pamwamba pa madzi, kenako pang'onopang'ono pangani slurry, ndikuziziritsa slurry pansi pa mukubwadamuka.
2).Onjezerani 1/3 kapena 2/3 ya madzi ofunikira mumtsuko ndikutenthetsa mpaka 70 ° C.Tsatirani njira mu 1) kumwazikana MC kukonzekera madzi otentha slurry;kenaka yonjezerani madzi otsala otsala a madzi ozizira kapena madzi oundana Mumadzi otentha slurry, kuziziritsa kusakaniza mutatha kuyambitsa.
Ufa kusanganikirana njira: youma kusanganikirana MC ufa particles ndi ofanana kapena yokulirapo mulingo wa zosakaniza ena ufa mokwanira kumwazikana iwo, ndiyeno kuwonjezera madzi kupasuka iwo, ndiye MC akhoza kusungunuka popanda agglomeration.
3. Organic zosungunulira kunyowetsa njira: kumwazikana kapena moisten MC ndi zosungunulira organic, monga Mowa, ethylene glycol kapena mafuta, ndiyeno kuwonjezera madzi kupasuka.Ndiye MC imathanso kusungunuka bwino.
Asanu.Cholinga:
Mankhwalawa amagwiritsidwa ntchito kwambiri pomanga zomanga, zomangira, zokutira dispersive, phala wallpaper, polymerization zina, zochotsa utoto, zikopa, inki, pepala, etc. monga thickeners, zomatira, madzi posungira wothandizira, filimu kupanga wothandizira, Excipients, etc. .Mwachitsanzo, amagwiritsidwa ntchito ngati chomangira, chokhuthala ndi kusunga madzi m’zomangira, monga chopangira filimu ndi kukhuthala m’mafakitale opaka, ndipo amagwiritsidwanso ntchito kwambiri m’minda monga kubowola mafuta ndi mafakitale a tsiku ndi tsiku. .
1. Makampani omangamanga: Monga chosungira madzi komanso chochepetsera matope a simenti, zimapangitsa kuti matopewo azipopa.Amagwiritsidwa ntchito ngati chomangira mu pulasitala, pulasitala, putty ufa kapena zida zina zomangira kuti azitha kufalikira ndikutalikitsa nthawi yogwira ntchito.Itha kugwiritsidwa ntchito kuyika matailosi a ceramic, marble, zokongoletsera za pulasitiki, zowonjezera zowonjezera, komanso zimatha kuchepetsa kuchuluka kwa simenti.Makhalidwe osungira madzi a HPMC amalepheretsa slurry kusweka chifukwa cha kuyanika mofulumira pambuyo pa ntchito, ndikuwonjezera mphamvu pambuyo pouma.
2. Makampani opanga Ceramic: amagwiritsidwa ntchito kwambiri ngati chomangira popanga zinthu za ceramic.
3. Makampani opanga utoto: Monga thickener, dispersant ndi stabilizer mu makampani utoto, izo zimagwirizana bwino m'madzi kapena organic solvents.Monga chochotsera utoto.
4. Kusindikiza kwa inki: Monga thickener, dispersant ndi stabilizer mu makampani a inki, zimakhala zogwirizana bwino m'madzi kapena organic solvents.
5. Pulasitiki: amagwiritsidwa ntchito ngati kutulutsa nkhungu, zofewa, mafuta odzola, etc.
6. Polyvinyl kolorayidi: Amagwiritsidwa ntchito ngati dispersant popanga polyvinyl kolorayidi ndipo ndiye wothandizira wamkulu pokonzekera PVC ndi kuyimitsidwa kwa polymerization.
7. Zina: Izi zimagwiritsidwanso ntchito kwambiri pazikopa, mapepala, kusunga zipatso ndi masamba komanso mafakitale a nsalu.
8. Makampani opanga mankhwala: zida zokutira;filimu zipangizo;kuwongolera zida za polima pokonzekera kumasulidwa pang'onopang'ono;stabilizers;oyimitsa wothandizira;zomangira piritsi;thickeners.Ngozi zaumoyo: mankhwalawa ndi otetezeka komanso osakhala ndi poizoni, ndipo angagwiritsidwe ntchito ngati chowonjezera cha chakudya , Palibe kutentha, palibe kukwiya kwa khungu ndi mucous nembanemba kukhudzana.Nthawi zambiri amaonedwa kuti ndi otetezeka (FDA1985), chakudya chovomerezeka chatsiku ndi tsiku ndi 25mg/kg (FAO/WHO 1985), ndipo zida zodzitetezera ziyenera kuvalidwa pogwira ntchito.
Kuwononga chilengedwe: Pewani kuponya mwachisawawa kuti muwononge mpweya ndi fumbi lowuluka.
Zowopsa zakuthupi ndi zamankhwala: Pewani kukhudzana ndi zinthu zomwe zimayaka moto, ndipo pewani kupanga fumbi lalikulu pamalo otsekedwa kuti mupewe ngozi zophulika.
Chinthuchi chimangogwiritsidwa ntchito ngati thickener, chomwe sichiri chabwino pakhungu.
Nthawi yotumiza: Nov-24-2021