1 Isingeniso
Njengoba i-Advent of Dyses esebenzayo, i-sodium alginate (SA) ibilokhu inamaneli enkulu yokuphrinta okusebenzayo kwe-DOCKIN
Usebenzisa izinhlobo ezintathu zeI-Cellulose AfersI-CMC, i-HEC neHecMC elungiselelwe eSahlukweni 3 njengoba i-Namathisi yasekuqaleni, yasetshenziswa ekushicilelweni kwedayi okusebenzayo ngokulandelana.
imbali. Izakhiwo eziyisisekelo kanye nezindawo zokuphrinta zabhazi ezintathu zahlolwa futhi ziqhathaniswa ne-SA, kwahlolwa imicu emithathu.
Ukuphrinta kwezakhiwo zikaVithamini Althers.
2 Ingxenye yokuhlola
Izinto zokuhlola nezidakamizwa
Izinto zokusetshenziswa nezidakamizwa ezisetshenziswa esivivinyweni. Phakathi kwazo, izindwangu zokuphrinta zedayi ezisebenzayo ziye zakhanyisa futhi zihlaziya, njll.
Uchungechunge lwe-pure ture ture ture ture ephathekayo, i-density 60 / 10cm × 50 / 10cm, i-yarn iluka i-21tex × 21Tex.
Ukulungiselela ukunamathisela ukunamathisela nombala paste
Ukulungiselela ukunamathisela kokuphrinta
Okwema-pastes amane ase-SA, CMC, HEC kanye ne-HECMC, ngokuya ngesilinganiso sokuqukethwe okuqinile okuhlukile, ngaphansi kwezimo ezivusa amadlingozi
Ngemuva kwalokho, engeza kancane ukunamathisela emanzini, qhubeka uvuse isikhathi esithile, kuze kube yilapho unamathisela oqobo ufana futhi esobala, yeka ukushukumisa, bese ubeka esitofini
Engilazini, ake ume ubusuku bonke.
Ukulungiselela ukunamathisela kokuphrinta
Qala uchithe u-urea nosawoti olwa nodayisi ngenani elincane lamanzi, bese wengeza amadayi asebenzayo ancibilikisiwe emanzini, ukushisa bese uvusa kubhavu wamanzi afudumele
Ngemuva kokuvusa isikhathi esithile, engeza utshwala bedayi ohlungiwe kunamathisela okuqala bese uvuse ngokulinganayo. Engeza ukuncibilikisa uze uqale ukuphrinta
I-sodium bicarbonate enhle. Ifomula yokungena kombala: udayi osebenzayo 3%, ukunamathisela koqobo 80% (okuqukethwe okuqinile 3%), i-sodium bicarbonate 3%,
I-Anti-concumination Salt S ngu-2%, urea ngu-5%, bese ekugcineni amanzi angezwe ku-100%.
Inqubo yokuphrinta
Inqubo yokuphrinta yekotini yekotini: Ukulungiselela ukunamathisela kokuphrinta Ukugeza ngamanzi (80 ℃) → insipho ebilayo (insipho i-flakes 3g / l,
I-100 ℃, 10min) → Ukugeza amanzi okushisayo (80 ℃) → Ukugeza amanzi okubandayo
Ukuhlolwa kokusebenza okuyisisekelo kokunamathisela koqobo
Ukunamathisela isilinganiso sesilinganiso
Ama-pastes amane aseNingizimu Afrika, CMC, i-HEC kanye ne-HECMC enokuqukethwe okuqinile okuhlukile kwalungiswa, neBrookfield DV-ⅱ
I-viscosity yohlobo ngalunye olunokuqukethwe okuqinile okuhlukile kwahlolwa yi-visecometer, kanye noshintsho lwejika lokubonakala ngokubhekisisa kwakuwukunamathisela izinga lokunambitheka.
ijika.
I-Rheology kanye ne-Prisure Viscosity Index
I-RHEOLOGY: I-RCR301 eshintshashintshayo Rheometer yayisetshenziselwa ukukala i-viscosity (η) yokunamathisela koqobo kumanani ahlukene we-shear.
Ijika lokushintsha kwezinga le-shear yijika le-bherho.
Ukuphrinta I-Viscosity Index: Inkomba yokuphrinta yokuphrinta ivezwa yi-PVI, PVI = η6 / η6, lapho i-η60 ne-η6 zilandelana
I-Viscosity of the paste yoqobo ekalwa yiBrookfield DV-II VIPCETET ngejubane elifanayo le-rotor le-60r / min kanye ne-6r / min.
ukuhlolwa kokugcinwa kwamanzi
Isisindo se-25g sokunamathisela koqobo ku-80ml beaker, futhi kancane kancane engeza i-25ml yamanzi anciphile ngenkathi uvusa ukwenza ingxube.
Ixutshwe ngokulinganayo. Thatha iphepha lokuhlunga lokulinganisa elinobude be- Isikhathi sesiqalile ngemuva kokuthi iphepha lokuhlunga lifakiwe, futhi libhalwe ephepheni lokuhlunga ngemuva kwemizuzu engama-30.
Ukuphakama kwawo umswakama kukhuphuka.
4 Ukuhlolwa kokuvumelana kwamakhemikhali
Ngokuphrinta kwedayi esebenzayo, vivinya ukuhambisana kokunamathisela koqobo namanye amadayi angezwe ku-paste yokuphrinta,
Lokho wukuthi, ukuhambisana phakathi kokunameka koqobo kanye nezinto ezintathu (urea, sodium bicarbonate kanye nosawoti olwa namabala), izinyathelo ezithile zokuhlola zimi ngokulandelayo:
.
Inani elitholakele le-viscosity lisetshenziswa njengendlela yokubonana.
(2) Ukuhlola ukubonwa kokunameka koqobo ngemuva kokungeza izithako ezahlukahlukene (urea, sodium bicarbonate kanye nosawoti olwa namabala
Isixazululo se-Urea (Ingxenyana Eningi), i-3% Isixazululo SamaSawoti Esivimbela Usawoti (Ingxenyana Eningi) ne-6% Sodium Bicarbonate Solution (Ingxenyana Eningi)
I-25mL yengezwe ku-50g yoqobo lokunamathisela okuqala ngokulandelana, ivuse ngokulinganayo futhi ibekwe isikhathi esithile, bese ibeka ukubonwa kokunameka koqobo. Ekugcineni, kuzokalwa ukubonakala kwento
Amanani we-viscosity aqhathaniswa ne-visa ahambisanayo yokuqagela, kanye nephesenti lokuguqulwa kwe-viscosity of the paste yasekuqaleni ngaphambi nangemva kokungezwa udayi ngamunye kanye nemininingwane yamakhemikhali yabalwa.
Ukuhlolwa kokuqina kokuqina
Gcina ukunamathisela koqobo ekushiseni kwegumbi (25 ° C) ngaphansi kwengcindezi ejwayelekile izinsuku eziyisithupha, ulinganise ukubonwa kosuku lokuqala nsuku zonke ngaphansi kwezinsuku ezi-6 uma uqhathaniswa ne-viscosity elinganiselwe usuku lokuqala ngeFomula 4- (1). I-degree yokuhlakazeka yoqobo ngakunye kwalo ihlolwe ngezilinganiso zokuhlakazwa njengezinkomba
Ukuqina kwesitoreji, okuncane ukuhlakazwa, okungcono ukuqina kwesitoreji kokunamathisela koqobo.
Ukuhlolwa kwesilinganiso sokushelela
Owomile owomile indwangu yekotini ukuze iphrintwe isisindo esingaguquki, isisindo bese uyiqopha njenge-ma; bese yomisa indwangu yekotini ngemuva kokuphrinta kunesisindo esingaguquki, isisindo bese uyiqopha
I-MB; Ekugcineni, indwangu yekotini ephrintiwe ngemuva kokubika, ukugcwala kanye nokugeza kumiswa kunesisindo esihlala njalo, kunesisindo futhi kuqoshwe njenge-MC
Ukuhlolwa kwesandla
Okokuqala, izindwangu zikotini ngaphambi nangemva kokuphrinta zisampula njengoba kudingeka, bese kusetshenziselwa insimbi yesitayela sendwangu ye-phabrometer isetshenziselwa ukukala ubuhlalu bezindwangu.
Umuzwa wesandla wendwangu ngaphambi nangemva kokuphrinta wahlolwa ngokuphelele ngokuqhathanisa izici ezintathu zokuzwa ngesandla zobushelelezi, ukuqina nokuthamba.
Umbala wokuqina wokushesha wombala wezindwangu eziphrintiwe
(1) Ukushesha kombala ekuhlolweni kokuhlikihla
Hlola ngokuya nge-GB / T 3920-2008 "Ukushesha kombala ukuhlikihla ukuhlolwa kokushesha kombala kwezindwangu".
(2) Ukuhlolwa kokushesha kombala ukugeza
Hlola ngokuya nge-GB / T 3921.3-2008 "I-Colour Reastness kuya ekuphangeni kwezindwangu zezindwangu zombala wokuzilolonga".
Ukunamathisela koqobo okuqukethwe okuqinile /%
Cm
I-HEC
I-hemcc
SA
Ukuhlukahluka kwejika lokubonakala kwezinhlobo ezine zama-pastes angempela ngokuqukethwe okuqinile
yi-sodium alginate (SA), i-carboxymethyl cellulose (CMC), i-hydroxyethyl cellulose (i-HEC) ne
I-Viscosity Curves yezinhlobo ezine zamadlelo okuqala e-hydroxyethyl carboxyyllls (HECMC) njengomsebenzi wokuqukethwe okuqinile.
, i-viscosity yama-paste amane asekuqaleni akhuphuke ngokunyuka kokuqukethwe okuqinile, kepha izakhiwo ezakha ama-paste ze-paste ezine ezine zazingafani, phakathi kwazo iSA
Impahla yokunamathisela ye-CMC ne-HECMC ihamba phambili, futhi impahla ye-HEC yiyona ebi kakhulu.
Ama-herve asebenza ama-herve we-pastes amane afanayo alinganiswa yi-MCR301 ejikelezayo Rheometer.
- I-Viscosity Curve njengomsebenzi wezinga le-shear. Ama-viscosities ama-pastes amane okuqala akhuphuka ngezinga le-shear.
Khuphula futhi wehlise, SA, CMC, i-HEC ne-HECMC wonke amanzi ama-pseudoplastic. Ithebula 4.3 Amanani we-PVI we-pastes ehlukahlukene eluhlaza
Uhlobo lokunamathisela ovusekayo lwe-SA CMC HEC HECMC
Inani le-PVI 0.813 0.526 0.621 0.726
Kungabonakala kusuka etafuleni 4.3 ukuthi inkomba yokuphrinta yokuphrinta ye-SA ne-HecMC inkulu futhi ukubukeka okuhlelekile kuncane, okungukuthi, ukuphrinta kwasekuqaleni kokuphrinta
Ngaphansi kwesenzo se-Low Shear Force, izinga lokushintsha kwe-viscosity lincane, futhi kunzima ukufeza izidingo zesikrini esijikelezayo nokuphrinta kwesikrini esiyisicaba; Ngenkathi i-HEC ne-CMC
Inkomba yokuphrinta yokuphrinta ye-CMC ingu-0,526 kuphela, futhi ukubukeka kwayo okuhlelekile kukhulu kakhulu, okungukuthi, ukunamathisela kokuphrinta koqobo kunebutho eliphansi le-shear.
Ngaphansi kwesenzo, isilinganiso sokushintsha kwe-viscosity silinganiselwe, esingahlangabezana kangcono nezidingo zesikrini esijikelezayo kanye nokuphrinta kwesikrini esiyisicaba, futhi singakulungele ukuphrinta kwesikrini esijikelezayo ngenombolo ephezulu ye-mesh.
Kulula ukuthola amaphethini acacile nemigqa. I-Viscosity / MPA
Ama-herve e-bhedi ama-1% awolidi aqinile ama-pastes
Uhlobo lokunamathisela ovusekayo lwe-SA CMC HEC HECMC
h / cm 0.33 0.36 0.41 0.39
Amanzi aphethe imiphumela yokuhlola ye-1% SA, 1% CMC, 1% HEC kanye 1% HECMC Asteri Original Aste.
Kwatholakala ukuthi amanzi aphethe amakhono eSA ahamba phambili, alandelwa yi-CMC, futhi kubi ngeHecMC ne-HEC.
Ukuqhathanisa ukuhambisana kwamakhemikhali
Ukuhlukahluka kokuqonda kokuqala kwe-SA, CMC, HEC kanye neHecMC
Uhlobo lokunamathisela ovusekayo lwe-SA CMC HEC HECMC
I-Viscosity / MPA
I-Viscosity Ngemuva kokungeza i-Urea / MPA s
I-Viscosity Ngemuva kokungeza usawoti olwa namabala we-S / MPA
I-Viscosity Ngemuva kokungeza i-sodium bicarbonate / MPA s
Ama-viscosities amane aphambili we-SA, CMC, i-HEC ne-HECMC ayahlukahluka ngezithasiselo ezintathu eziphambili: U-Urea, usawoti olwa namabala futhi
Izinguquko ngokungezwa kwe-sodium bicarbonate zikhonjiswa etafuleni. , ukwengeza kwezithasiselo ezintathu eziphambili, ukunamathisela koqobo
Izinga loshintsho ekubonakaleni liyahluka kakhulu. Phakathi kwazo, ukungezwa kwe-urea kungakhuphula ukubonwa kokunameka kwangempela cishe nge-5%, okungenzeka
Kubangelwa umphumela we-hygroscopic nokukhukhumeza kwe-urea; Futhi usawoti olwa namabala uzokwengeza kancane ukubonwa kokunameka koqobo, kepha kunomthelela omncane;
Ukungezelelwa kwe-sodium bicarbonate kuncishiswe kakhulu ukubonakala kokunameka koqobo, phakathi kwayo i-CMC ne-HEC kwehla kakhulu, kanye nokubonakaliswa kweHecMC / MPA
66
Okwesibili, ukuhambisana kwe-SA kungcono.
I-SA CMC HEC HECMC
-15
-10
-5
05
Urea
Usawoti olwa namabala
sodium bicarbonate
Ukuhambisana kwe-SA, CMC, I-HEC kanye ne-HECMC Stock Pasteles ngamakhemikhali amathathu
Ukuqhathaniswa kokuqina kwesitoreji
Ukuhlakazeka kokubonakaliswa kwansuku zonke kwama-paste ahlukahlukene aluhlaza
Uhlobo lokunamathisela ovusekayo lwe-SA CMC HEC HECMC
Ukuhlakazeka /% 8.68 8.15 8. 98 8.83
Ingabe i-degree degree of SA, CMC, i-HEC kanye ne-HECMC ngaphansi kokubonakala kwansuku zonke kwama-pastes amane okuqala, ukuhlakazeka
Inani elincane inani le-degree, lingcono ukuqina kwesitoreji kwe-paste yasekuqaleni ehambisanayo. Kungabonakala etafuleni ukuthi ukuqina kwesitoreji kwe-CMC RAW paste kuhle kakhulu
Ukuqina kwesitoreji kwe-HEC kanye ne-HECMC eluhlaza unamathisela umpondo ompofu, kepha umehluko awubalulekile.
Isikhathi sePosi: Sep-29-2022