1. Izici ezihlukene
I-Hydroxypropyl methylcellulose: i-fibrous emhlophe noma emhlophe noma i-granular powder, eyingxenye ye-ethers exubile ye-non-ionic cellulose.I-semi-synthetic, engasebenzi, i-viscoelastic polymer.
I-Hydroxyethyl cellulose: (HEC) iyi-fibrous emhlophe noma ekhanyayo, engenaphunga, eqinile engenabuthi noma eyimpuphu, elungiswe ngokufakwa kwe-alkaline cellulose ne-ethylene oxide (noma i-chloroethanol).Ingeka-non-ionic soluble cellulose ethers.
2. Ukusetshenziswa okuhlukile
I-Hydroxypropyl methylcellulose: Isetshenziswa njenge-thickener, dispersant kanye ne-stabilizer embonini yokumboza, futhi inokuhambisana okuhle emanzini noma ku-organic solvents.Njengokususa upende;njenge-dispersant ekukhiqizeni i-polyvinyl chloride, iyi-ejenti eyinhloko eyisizayo yokulungiswa kwe-PVC ngokumiswa kwe-polymerization;ibuye isetshenziswe kabanzi embonini yesikhumba, yephepha, egcina izithelo nemifino kanye nezimboni zendwangu.
I-Hydroxyethyl cellulose: isetshenziswa njenge-adhesive, i-surfactant, i-colloidal protective agent, dispersant, emulsifier kanye ne-dispersion stabilizer, njll. Inezinhlobonhlobo zezicelo zokumboza, oyinki, imicu, ukudaya, ukwenza amaphepha, izimonyo, izibulala-zinambuzane, ukucubungula amaminerali, ukukhishwa kwamafutha. kanye nomuthi.
3. Ukuncibilika okuhlukile
IHydroxypropyl methylcellulose: Icishe ingancibiliki ku-ethanol, ether, ne-acetone;ikhukhumala ibe yisisombululo se-colloidal esicacile noma esincane emanzini abandayo.
I-Hydroxyethyl cellulose: inezakhiwo zokujiya, ukumisa okwesikhashana, ukubopha, ukuhlanganisa, ukuhlakaza, nokugcina umswakama.Izixazululo ezinobubanzi obuhlukahlukene be-viscosity zingalungiswa.Ine-solubility enhle kakhulu kasawoti kuma-electrolyte.
I-Hydroxypropyl methylcellulose (HPMC) Izakhiwo zomzimba namakhemikhali:
1. Ukubukeka: I-MC imhlophe noma icishe ibe mhlophe i-fibrous noma i-granular powder, ayinaphunga.
2. Izakhiwo: I-MC cishe ayincibiliki ku-ethanol ephelele, i-ether ne-acetone.Ihlakazeka futhi ikhukhumale ngokushesha emanzini ashisayo ku-80~90℃, futhi incibilika ngokushesha ngemva kokupholisa.Isixazululo se-aqueous sizinzile ekamelweni lokushisa futhi singafaka ijeli ekushiseni okuphezulu, futhi ijeli ingashintsha nesisombululo ngokushisa.Inokumanzisa okuhle kakhulu, i-dispersibility, i-adhesion, ukuqina, i-emulsification, ukugcinwa kwamanzi kanye nezakhiwo zefilimu, kanye nokungakwazi ukugcoba ukugcoba.Ifilimu eyakhiwe inokuqina okuhle kakhulu, ukuguquguquka nokungafihli.Ngenxa yokuthi ayiyona i-ionic, ingahambisana namanye ama-emulsifiers, kodwa kulula ukuyikhipha usawoti futhi isisombululo sizinzile kububanzi be-PH2-12.
3. Ukuminyana okubonakalayo: 0.30-0.70g/cm3, ukuminyana cishe ku-1.3g/cm3.
2. Indlela yokuhlakaza:
Umkhiqizo we-MC wengezwe ngokuqondile emanzini, uzohlanganisa bese uyancibilika, kodwa lokhu kuhlakazwa kuhamba kancane futhi kunzima.Izindlela zokuhlakaza ezintathu ezilandelayo ziyaphakanyiswa, futhi umsebenzisi angakhetha indlela elula kakhulu ngokuvumelana nesimo sokusebenzisa:
1. Indlela yamanzi ashisayo: Njengoba i-MC ingancibiliki emanzini ashisayo, i-MC ingahlakazwa ngokulinganayo emanzini ashisayo esigabeni sokuqala.Lapho selipholile, izindlela ezimbili ezijwayelekile zichazwa kanje:
1).Faka inani elidingekayo lamanzi ashisayo esitsheni bese ushisa kuze kufike ku-70°C.Kancane kancane engeza i-MC ngaphansi kokuyaluza kancane, qala ukuntanta phezu kwamanzi, bese kancane kancane wakhe i-slurry, futhi upholise udaka ngaphansi kokuyaluza.
2).Faka i-1/3 noma 2/3 yenani elidingekayo lamanzi esitsheni bese usishisa ku-70℃.Landela indlela ye-1) ukuhlakaza i-MC ukulungisa udaka lwamanzi ashisayo;bese ufaka inani elisele lamanzi abandayo noma amanzi e-ice Ku-slurry yamanzi ashisayo, upholise ingxube ngemva kokugqugquzela.
2. Indlela yokuxuba i-Powder: Hlanganisa izinhlayiya ze-MC powder ngenani elilinganayo noma elikhulu lezinye izithako eziyimpuphu ukuze uzihlakaze ngokugcwele ngokuxuba okomile, bese ufaka amanzi ukuze uhlakaze, khona-ke i-MC ingancibilika ngaphandle kokuhlanganisa.
3. Indlela yokumanzisa i-solvent ye-Organic: hlakaza ngaphambili noma manzise i-MC nge-solvent ephilayo, njenge-ethanol, i-ethylene glycol noma uwoyela, bese ufaka amanzi ukuze uhlakaze, khona-ke i-MC ingancibilika kahle ngalesi sikhathi.
3. Inhloso:
Lo mkhiqizo usetshenziswa kakhulu ekwakhiweni kwesakhiwo, izinto zokwakha, izimbotshana ezihlakazayo, ama-wallpaper, izithasiselo ze-polymerization, izinto ezikhipha upende, isikhumba, uyinki, iphepha, njll. njengama-thickeners, ama-adhesives, ama-ejenti agcina amanzi, ama-ejenti abumba ifilimu, Izinto ezisizayo, njll. Isibonelo, isetshenziswa njenge-binder, i-thickener kanye ne-ejenti egcina amanzi ezintweni zokwakha, njenge-ejenti yokwakha ifilimu kanye ne-thickener embonini yokumboza, futhi isetshenziswa kabanzi emikhakheni efana nokumba i-petroleum kanye nemboni yamakhemikhali yansuku zonke. .
Izakhiwo zomzimba namakhemikhali ze-methyl cellulose (MC):
3. Ukubukeka: I-MC imhlophe noma icishe ibe mhlophe i-fibrous noma i-granular powder, ayinaphunga.
Izakhiwo: I-MC cishe ayincibiliki ku-ethanol ephelele, i-ether ne-acetone.Ihlakaza futhi ikhukhumale ngokushesha emanzini ashisayo angu-80~90>℃, futhi incibilika ngokushesha ngemva kokupholisa.Isixazululo se-aqueous sizinzile ekushiseni okujwayelekile futhi singakwazi ukugcoba ekushiseni okuphezulu, futhi ijeli ingashintsha nesisombululo ngezinga lokushisa.Inokumanzisa okuhle kakhulu, i-dispersibility, i-adhesion, ukuqina, i-emulsification, ukugcinwa kwamanzi kanye nezakhiwo zefilimu, kanye nokungakwazi ukugcoba ukugcoba.Ifilimu eyakhiwe inokuqina okuhle kakhulu, ukuguquguquka nokungafihli.Ngenxa yokuthi ayiyona i-ionic, ingahambisana namanye ama-emulsifiers, kodwa kulula ukuyikhipha usawoti futhi isisombululo sizinzile kububanzi be-PH2-12.
1.Ukuminyana okubonakalayo: 0.30-0.70g/cm3, ukuminyana cishe ku-1.3g/cm3.
Okwesibili.Indlela yokuqeda:
I-MC> Umkhiqizo wengezwe ngokuqondile emanzini, uzohlanganisa bese uhlakazeka, kodwa lokhu kuhlakazeka kuhamba kancane futhi kunzima.Kuphakanyiswa izindlela ezintathu ezilandelayo zokuchithwa, futhi abasebenzisi bangakhetha indlela elula kakhulu ngokuya ngemibandela yokusetshenziswa:
1. Indlela yamanzi ashisayo: Njengoba i-MC ingancibiliki emanzini ashisayo, i-MC ingahlakazwa ngokulinganayo emanzini ashisayo esigabeni sokuqala.Lapho selipholile, izindlela ezimbili ezijwayelekile zichazwa kanje:
1).Faka inani elidingekayo lamanzi ashisayo esitsheni bese ushisa kuze kufike ku-70°C.Kancane kancane engeza i-MC ngaphansi kokuyaluza kancane, qala ukuntanta phezu kwamanzi, bese kancane kancane wakhe i-slurry, futhi upholise udaka ngaphansi kokuyaluza.
2).Faka i-1/3 noma 2/3 yenani elidingekayo lamanzi esitsheni bese usishisa ku-70°C.Landela indlela ku-1) ukuze uhlakaze i-MC ukuze ulungiselele udaka lwamanzi ashisayo;bese ufaka inani elisele lamanzi abandayo noma amanzi e-ice Ku-slurry yamanzi ashisayo, upholise ingxube ngemva kokugqugquzela.
Indlela yokuxuba i-Powder: ukuxuba okomile kwezinhlayiya ze-MC powder ezinamanani alinganayo noma amakhulu ezinye izithako eziyimpuphu ukuze uzihlakaze ngokugcwele, bese ufaka amanzi ukuze uzincibilikise, khona-ke i-MC ingancibilika ngaphandle kwe-agglomeration.
3. Indlela yokumanzisa i-solvent ye-Organic: hlakaza noma manzisa i-MC nge-solvent ephilayo, njenge-ethanol, i-ethylene glycol noma uwoyela, bese wengeza amanzi ukuze uyincibilikise.Khona-ke i-MC nayo ingahlakazwa kahle.
Ezinhlanu.Inhloso:
Lo mkhiqizo usetshenziswa kakhulu ekwakhiweni kwesakhiwo, izinto zokwakha, izimbotshana ezihlakazayo, ama-wallpaper, izithasiselo ze-polymerization, izinto ezikhipha upende, isikhumba, uyinki, iphepha, njll. njengama-thickeners, ama-adhesives, ama-ejenti agcina amanzi, ama-ejenti abumba ifilimu, Izinto ezisizayo, njll. Isibonelo, isetshenziswa njenge-binder, i-thickener kanye ne-ejenti egcina amanzi ezintweni zokwakha, njenge-ejenti yokwakha ifilimu kanye ne-thickener embonini yokumboza, futhi isetshenziswa kabanzi emikhakheni efana nokumba i-petroleum kanye nemboni yamakhemikhali yansuku zonke. .
1. Imboni yezokwakha: Njenge-ejenti egcina amanzi futhi ibuyisela emuva udaka lukasimende, yenza udaka lumpompeke.Isetshenziswa njenge-binder ku-plaster, ukhonkolo, i-putty powder noma ezinye izinto zokwakha ukuze kuthuthukiswe ukusabalala nokwelula isikhathi sokusebenza.Ingasetshenziselwa ukunamathisela amathayili e-ceramic, imabula, umhlobiso wepulasitiki, unamathisele isithuthukisi, futhi inganciphisa nenani likasimende.Izakhiwo zokugcina amanzi ze-HPMC zivimbela udaka ekuqhekekeni ngenxa yokoma ngokushesha ngemva kokufaka isicelo, futhi zithuthukisa amandla ngemva kokuqina.
2. Imboni yokukhiqiza i-Ceramic: isetshenziswa kabanzi njengesibopho lapho kukhiqizwa imikhiqizo yobumba.
3. Imboni kapende: Njenge-thickener, dispersant kanye ne-stabilizer embonini kapende, inokuhambisana okuhle emanzini noma ku-organic solvents.Njengesikhiphi sikapende.
4. Ukuphrinta kukayinki: Njenge-thickener, dispersant kanye ne-stabilizer embonini ye-inki, inokuhambisana okuhle emanzini noma ku-organic solvents.
5. Amapulasitiki: asetshenziswa njengama-ejenti akhulula isikhunta, izithambisa, izinto zokuthambisa, njll.
6. I-Polyvinyl chloride: Isetshenziswa njenge-disperant ekukhiqizeni i-polyvinyl chloride futhi iyi-ejenti eyinhloko eyisizayo yokulungiswa kwe-PVC ngokumiswa kwe-polymerization.
7. Abanye: Lo mkhiqizo futhi usetshenziswa kakhulu esikhumbeni, emikhiqizweni yephepha, ekugcinweni kwezithelo nemifino kanye nezimboni zendwangu.
8. Imboni yezemithi: izinto zokugqoka;izinto zefilimu;izinto zokwakha ze-polymer ezilawula isilinganiso sokulungiselela ukukhishwa kancane;izinza;ama-agent amisiwe;izibophezelo zethebhulethi;amajini.Izingozi zempilo: lo mkhiqizo uphephile futhi awunabo ubuthi, futhi ungasetshenziswa njengesengezo sokudla , Akukho ukushisa, akukho ukucasuka kwesikhumba nolwelwesi lwamafinyila.Ngokuvamile kubhekwa njengokuphephile (i-FDA1985), umthamo ovunyelwe wansuku zonke ngu-25mg/kg (FAO/WHO 1985), futhi okokusebenza kokuvikela kufanele kugqokwe ngesikhathi sokusebenza.
Umthelela wendawo: Gwema ukuphonsa okungahleliwe ukuze ubangele ukungcoliswa komoya ngothuli olundizayo.
Izingozi ezingokomzimba namakhemikhali: Gwema ukuthintana nemithombo yomlilo, futhi ugweme ukwakheka kothuli oluningi endaweni evaliwe ukuze uvimbele izingozi eziqhumayo.
Le nto empeleni isetshenziswa kuphela njenge-thickener, engeyinhle esikhumbeni.
Isikhathi sokuthumela: Nov-24-2021