1. Kakaretso
Hydroxypropyl Methyl Cellulose (HPMC) ke ether e seng ea ionic cellulose e entsoeng ka thepa ea tlhaho ea polymer - selulose ka letoto la mekhoa ea lik'hemik'hale. Hydroxypropyl methylcellulose (HPMC) ke phofshoana e se nang monko, e sa latsoeheng, e se nang chefo, e ka qhibilihang ka metsing a batang ho etsa tharollo e hlakileng ea viscous, e nang le mesebetsi ea ho tiisa, ho kopanya, ho qhalakanya, ho emulsifying, ho etsa filimi, le ho emisa , adsorption, gelation, mosebetsi oa holim'a metsi, ho boloka mongobo le thepa e sireletsang ea colloid.
Hydroxypropyl methylcellulose (HPMC) e ka sebelisoa ka thepa ea moaho, lijalo, li-resin tsa maiketsetso, lirafshoa, meriana, lijo, masela, temo, litlolo le liindasteri tsa koae.
2, Litlhaloso tsa sehlahisoa le lihlopha Lihlahisoa li arotsoe ka metsi a batang a qhibilihang ka mofuta oa S le mofuta o tloaelehileng
Litlhaloso Tse Tloaelehileng tsaHydroxypropyl Methyl Cellulose
| sehlahisoa | MC | HPMC | ||||
| E | F | J | K | |||
| Mokhoa | litaba (%) | 27.0~32.0 | 28.0~30.0 | 27.0~30.0 | 16.5-20.0 | 19.0 ~ 24.0 |
| Degree ea substitutionDS | 1.7 ~ 1.9 | 1.7 ~ 1.9 | 1.8~2.0 | 1.1 ~ 1.6 | 1.1 ~ 1.6 | |
| Hydroxypropoxy | litaba (%) | 7.0~12.0 | 4~7.5 | 23.0~32.0 | 4.0~12.0 | |
| Degree ea substitutionDS | 0.1~0.2 | 0.2~0.3 | 0.7 ~ 1.0 | 0.1~0.3 | ||
| Mongobo (Wt%) | ≤5.0 | |||||
| Molora(Wt%) | ≤1.0 | |||||
| PH boleng | 5.0~8.5 | |||||
| Bokantle | phofo e tšoeu ea lebese kapa phofo e tšoeu ea granule | |||||
| Bokhabane | 80 hlooho | |||||
| viscosity (mPa.s) | sheba lintlha tsa viscosity | |||||
Tlhaloso ea viscosity
| Tlhaloso | Viscosity range(mpa.s) | Tlhaloso | Viscosity range(mpa.s) |
| 5 | 3~9 | 8000 | 7000 ~ 9000 |
| 15 | 10-20 | 10000 | 9000 ~ 11000 |
| 25 | 20-30 | 20000 | 15000 ~ 25000 |
| 50 | 40-60 | 40000 | 35000 ~ 45000 |
| 100 | 80-120 | 60000 | 46000 ~ 65000 |
| 400 | 300 ~ 500 | 80000 | 66000~84000 |
| 800 | 700-900 | 100000 | 85000 ~ 120000 |
| 1500 | 1200 ~ 2000 | 150000 | 130000 ~ 180000 |
| 4000 | 3500 ~ 4500 | 200000 | ≥180000 |
3,tlhahiso ea tlhaho
Thepa: Sehlahisoa sena ke phofo e tšoeu kapa e sa tsoeu, e sa nkheng, e sa latsoeheng lee senang chefo.
Ho qhibiliha ha metsi le bokhoni ba ho tenya: Sehlahisoa sena se ka qhibiliha ka metsing a batang ho etsa tharollo e hlakileng ea viscous.
Ho qhalana ka metsoako ea lintho tse phelang: Kaha e na le palo e itseng ea lihlopha tsa hydrophobic methoxyl, sehlahisoa sena se ka qhibiliha ka har'a metsoako e meng ea tlhaho, 'me se ka boela sa qhibiliha ka metsoako e kopantsoeng le metsi le lintho tse phelang.
Ho hanyetsa letsoai: Kaha sehlahisoa sena ke polymer e seng ea ionic, e batla e tsitsitse ka litharollo tse nang le metsi a letsoai la tšepe kapa li-electrolyte tsa organic.
Mosebetsi oa holim'a metsi: Tharollo ea metsi ea sehlahisoa sena e na le ts'ebetso e ka holimo, 'me e na le mesebetsi le thepa e kang emulsification, colloid e sireletsang le botsitso bo amanang.
Thermal gelation: Ha tharollo ea metsi ea sehlahisoa sena e futhumetse mocheso o itseng, e fetoha opaque ho fihlela e theha (poly) boemo ba flocculation, e le hore tharollo e lahleheloe ke viscosity ea eona. Empa ka mor'a ho pholile, e tla fetoha boemo ba pele ba tharollo hape. Mocheso oo gelation e hlahang ho oona o itšetlehile ka mofuta oa sehlahisoa, mahloriso a tharollo le tekanyo ea ho futhumatsa.
PH botsitso: The viscosity ea tharollo ea metsi ea sehlahisoa sena e tsitsitse ka har'a mefuta ea PH3.0-11.0.
Phello ea ho boloka metsi: Kaha sehlahisoa sena ke hydrophilic, se ka kenngoa ho seretse, gypsum, pente, joalo-joalo ho boloka phello e phahameng ea ho boloka metsi sehlahisoa.
Ho boloka sebopeho: Ha ho bapisoa le li-polymers tse ling tse qhibilihang ka metsing, tharollo ea metsi ea sehlahisoa sena e na le thepa e khethehileng ea viscoelastic. Keketso ea eona e na le bokhoni ba ho boloka sebopeho sa lihlahisoa tsa ceramic tse extruded li sa fetohe.
Lubricity: Ho kenyelletsa sehlahisoa sena ho ka fokotsa coefficient ea likhohlano le ho ntlafatsa mafura a lihlahisoa tsa ceramic tse extruded le lihlahisoa tsa samente.
Lintho tsa ho etsa lifilimi: Sehlahisoa sena se ka etsa filimi e tenyetsehang, e pepeneneng e nang le thepa e ntle ea mochini, 'me e na le oli e ntle le ho hanyetsa mafura.
4. Lintho tsa 'mele le tsa lik'hemik'hale
Boholo ba likaroloana: Sekhahla sa ho feta sa 100 mesh se seholo ho feta 98.5%, sekhahla sa ho feta sa 80 mesh ke 100%
Mocheso oa carbonization: 280 ~ 300 ℃
Boima bo bonahalang: 0.25~0.70/cm khoheli e khethehileng 1.26~1.31
Mocheso oa ho fetola mebala: 190 ~ 200 ℃
Khatello ea sefahleho: 2% tharollo ea metsi ke 42 ~ 56dyn / cm
Solubility: Mokelikeli o qhibilihang ka metsing le lihlapolli tse ling, motsoako o nang le metsi o na le mosebetsi o ka holimo. Ponaletso e phahameng. Ts'ebetso e tsitsitseng, ho fetoha ha solubility ka viscosity, ho theola viscosity, ho ba le ho qhibiliha ho hoholo.
HPMC e boetse e na le litšoaneleho tsa bokhoni ba ho teteka, ho hanyetsa letsoai, botsitso ba PH, ho boloka metsi, botsitso ba mahlakore, thepa e babatsehang ea ho etsa filimi, le mefuta e mengata ea ho hanyetsa li-enzyme, ho arohana le ho kopana.
5, morero o ka sehloohong
Industrial grade HPMC e sebelisoa haholo-holo e le dispersant tlhahiso ea polyvinyl chloride, 'me ke moemeli ea ka sehloohong ea thusang bakeng sa ho lokisetsa PVC ka ho emisa polymerization. Ntle le moo, e ka sebelisoa e le motenya, stabilizer, emulsifier, excipient, le moemeli oa ho boloka metsi ha ho etsoa li-petrochemicals tse ling, likoaelo, thepa ea kaho, litlolo tsa pente, lik'hemik'hale tsa temo, li-inks, khatiso ea masela le ho daea, li-ceramics, pampiri. , litlolo, joalo-joalo, moemeli oa ho etsa filimi, joalo-joalo Ts'ebeliso ea li-resin tsa maiketsetso e ka etsa hore lihlahisoa tse fumanoeng li be le litšobotsi tsa likaroloana tse tloaelehileng le tse hlephileng, tse loketseng matla a khoheli le ts'ebetso e babatsehang ea ts'ebetso, kahoo ha e le hantle e nkela gelatin le joala ba polyvinyl e le dispersants.
Mekhoa e 6 ea ho hloekisa:
(1). Nka palo e hlokahalang ea metsi a chesang, e kenye ka har'a setshelo 'me ue chese ka holimo ho 80 ° C,' me butle-butle u kenye sehlahisoa sena tlas'a ho sisinyeha butle. Selulose e phaphamala ka holim'a metsi qalong, empa butle-butle e qhalakanngoa ho etsa seretse se tšoanang. Tharollo e ne e pholile ha e ntse e hlohlelletsa.
(2). Ntle le moo, futhumatsa 1/3 kapa 2/3 ea metsi a chesang ho feta 85 ° C, eketsa selulose ho fumana slurry ea metsi a chesang, ebe u eketsa palo e setseng ea metsi a batang, tsoela pele ho hlohlelletsa, 'me u pholile motsoako o hlahisoang.
(3). Letlooeng la cellulose le batla le le ntle, 'me le teng e le likaroloana tse nyane ka har'a phofo e ts'oeroeng ka ho lekana, 'me e qhibiliha kapele ha e kopana le metsi ho etsa viscosity e hlokahalang.
(4). Butle-butle le ka mokhoa o ts'oanang eketsa selulose mocheso oa kamore, o hlohlelletsa ka ho tsoelang pele ho fihlela ho thehoa tharollo e hlakileng.
Nako ea poso: Jan-11-2023