I-HEC yebanga lokupenda
Ibanga lokupendaI-HEC Hydroxyethyl cellulose uhlobo lwe-polymer encibilikayo emanzini engeyona i-ionic, impuphu emhlophe noma ephuzi, okulula ukuyigeleza, ayinaphunga futhi ayinambitheki, ingancibilika emanzini abandayo nashisayo, futhi izinga lokuncibilika liyakhuphuka ngokushisa, ngokuvamile lingancibiliki ezinyibilikisini eziningi eziphilayo. Inokusimama okuhle kwe-PH kanye noshintsho oluncane lwe-viscosity ebangeni le-ph2-12. I-HEC inokumelana nosawoti ophezulu kanye nekhono le-hygroscopic, futhi inokugcinwa kwamanzi okunamandla okubamba amanzi. Isixazululo sayo samanzi sinomsebenzi wobuso futhi imikhiqizo ye-viscosity ephezulu ine-pseudoplasticity ephezulu. Ingenziwa ifilimu esobala engenamanzi enamandla aphakathi, engangcoliswa kalula uwoyela, engathinteki ukukhanya, isenayo ifilimu encibilikayo emanzini ye-HEC. Ngemva kokwelashwa kobuso, i-HEC iyahlakazeka futhi ayihlangani emanzini, kodwa iyancibilika kancane. I-PH ingalungiswa ibe yi-8-10 futhi incibilike ngokushesha.
Izakhiwo eziyinhloko
Hi-ydroxyethyl cellulose(I-HEC)ukuthi ingancibilika emanzini abandayo nasemanzini ashisayo, futhi ayinazo izici zejeli. Inezinhlobo eziningi zokushintsha, ukuncibilika kanye ne-viscosity. Inesimo esihle sokushisa (ngaphansi kuka-140°C) futhi ayikhiqizi imvula ngaphansi kwezimo ze-acidic. Isixazululo se-hydroxyethyl cellulose (HEC) singakha ifilimu ecacile, enezici ezingezona i-ionic ezingahlangani nama-ion futhi ezinokuhambisana okuhle.
Njenge-colloid evikelayo, i-Paint grade HEC ingasetshenziswa kwi-polymerization ye-vinyl acetate emulsion ukuthuthukisa ukuzinza kohlelo lwe-polymerization kububanzi be-PH. Ekwenziweni kwemikhiqizo eqediwe ukwenza i-pigment, i-filler nezinye izithasiselo zihlakazeke ngokulinganayo, ziqine futhi zinikeze umphumela wokujiya. Ingasetshenziswa futhi kwi-styrene, i-acrylic, i-acrylic kanye nezinye i-polymer ezimisiwe njengezihlakaza, ezisetshenziswa kupende we-latex zingathuthukisa kakhulu ukujiya, zithuthukise ukusebenza kwe-leveling.
Ukucaciswa Kwamakhemikhali
| Ukubukeka | Impuphu emhlophe kuya kwemhlophe kakhulu |
| Usayizi wezinhlayiya | I-98% idlula i-mesh eyi-100 |
| Ukufaka i-molar esikhundleni se-degree (MS) | 1.8~2.5 |
| Izinsalela ekushiseni (%) | ≤0.5 |
| inani le-pH | 5.0~8.0 |
| Umswakama (%) | ≤5.0 |
Imikhiqizo Amabanga
| I-HECibanga | Ukuthamba(NDJ, mPa.s, 2%) | Ukuthamba(Brookfield, mPa.s, 1%) |
| I-HEC HS300 | 240-360 | 240-360 |
| I-HEC HS6000 | 4800-7200 | |
| I-HEC HS30000 | 24000-36000 | 1500-2500 |
| I-HEC HS60000 | 48000-72000 | 2400-3600 |
| I-HEC HS100000 | 80000-120000 | 4000-6000 |
| I-HEC HS150000 | 120000-180000 | 7000min |
Indlela yokusebenzisa i-hydroxyethyl cellulose HEC emanzini ageleza emanziniupende
1. Faka ngqo uma ugaya umbala: le ndlela ilula kakhulu, futhi isikhathi esisetshenziswayo sifushane. Izinyathelo ezinemininingwane yilezi ezilandelayo:
(1) Faka amanzi ahlanzekile afanele ku-VAT ye-agitator yokusika ephezulu (ngokuvamile, i-ethylene glycol, i-wetting agent kanye ne-film forming agent kuyangezwa ngalesi sikhathi)
(2) Qala ukuxuba ngesivinini esiphansi bese ufaka kancane kancane i-hydroxyethyl cellulose
(3) Qhubeka uvuselela kuze kube yilapho zonke izinhlayiya zimanzi
(4) engeza isithiyo sesikhunta, isilawuli se-PH, njll.
(5) Hlanganisa kuze kube yilapho yonke i-hydroxyethyl cellulose incibilika ngokuphelele (i-viscosity yesisombululo iyanda kakhulu) ngaphambi kokufaka ezinye izingxenye kufomula, bese ugaya kuze kube yilapho iba upende.
2. ifakwe uketshezi lukamama olulindile: le ndlela iqale ifakwe ukugcwala okuphezulu koketshezi lukamama, bese ifaka upende we-latex, inzuzo yale ndlela ukuguquguquka okukhulu, ingafakwa ngqo emikhiqizweni eqediwe yokupenda, kodwa kumele ibe yindawo yokugcina efanele. Izinyathelo nezindlela zifana nezinyathelo (1) – (4) ku-Method 1, ngaphandle kokuthi i-agitator yokusika ephezulu ayidingeki futhi i-agitator ethile enamandla anele okugcina imicu ye-hydroxyethyl ihlakazeke ngokulinganayo esixazululweni yanele. Qhubeka uvuselela kuze kube yilapho incibilika ngokuphelele ibe yisisombululo esijiyile. Qaphela ukuthi i-mildew inhibitor kumele ifakwe ku-mother alcohol ngokushesha okukhulu.
3. I-phenology efana ne-porridge: Njengoba izinyibilikisi eziphilayo ziyizinyibilikisi ezimbi ze-hydroxyethyl cellulose, lezi zinyibilikisi eziphilayo zingafakelwa i-porridge. Izinyibilikisi eziphilayo ezisetshenziswa kakhulu njenge-ethylene glycol, i-propylene glycol, kanye nama-film forming agents (njenge-hexadecanol noma i-diethylene glycol butyl acetate), amanzi eqhwa nawo ayizinyibilikisi ezimbi, ngakho-ke amanzi eqhwa avame ukusetshenziswa noketshezi oluphilayo ku-porridge. I-Gruel - efana ne-hydroxyethyl cellulose ingafakwa ngqo kupende. I-Hydroxyethyl cellulose igcwaliswe ngesimo se-porridge. Ngemuva kokufaka i-lacquer, ncibilikisa ngokushesha bese uba nomphumela wokujiya. Ngemuva kokufaka, qhubeka uvuselela kuze kube yilapho i-hydroxyethyl cellulose ichitheka ngokuphelele futhi ifana. I-porridge ejwayelekile yenziwa ngokuxuba izingxenye eziyisithupha ze-organic solvent noma amanzi eqhwa nengxenye eyodwa ye-hydroxyethyl cellulose. Ngemuva kwemizuzu engaba ngu-5-30, izinga le-PaintI-HECi-hydrolyzes futhi ikhuphuke ngokubonakalayo. Ehlobo, umswakama wamanzi uphakeme kakhulu ukuthi ungasetshenziselwa iphalishi.
4.Izinto ezidinga ukunakwa lapho kuhlonyiswa utshwala obungumama be-hydroxyethyl cellulose:
Pizexwayiso
1 Ngaphambi nangemva kokufaka ibanga lopendeI-HEC, kumele ivuselelwe njalo kuze kube yilapho ikhambi selicacile futhi licacile ngokuphelele.
2. Hlunga i-hydroxyethyl cellulose ethangini lokuxuba kancane. Ungayifaki ethangini lokuxuba ngobuningi obukhulu noma ngqo ebangeni le-bulk noma eliyindilinga le-Paint.I-HEC.
Izinga lokushisa lamanzi angu-3 kanye nenani le-pH lamanzi kuhlobene ngokusobala nokuncibilika kwebanga lopendeI-HECi-hydroxyethyl cellulose, ngakho-ke kufanele kunakwe ngokukhethekile kuyo.
Ungafaki into eyisisekelo engxubeni ngaphambi kohlobo lwe-PaintI-HECImpuphu ye-hydroxyethyl cellulose ifakwa emanzini. Ukuphakamisa i-pH ngemva kokucwiliswa kusiza ukuncibilika.
5. Ngangokunokwenzeka, ukungezwa kusenesikhathi kwesithiyo sokukhunta.
6 Uma usebenzisa izinga eliphezulu lokupendaI-HEC, ukugcwala kotshwala obungumama akufanele kube ngaphezu kuka-2.5-3% (ngesisindo), ngaphandle kwalokho utshwala obungumama kunzima ukubusebenzisa.
Izici ezithinta ukujiya kopende we-latex
1. Uma amabhamuza omoya ehlala ekhona kupende, kulapho i-viscosity iphakama khona.
2.Ingabe inani le-activator namanzi kufomula yopende liyavumelana?
3 ekuhlanganisweni kwe-latex, okuqukethwe kwe-catalyst oxide okusele kwenani.
4. Umthamo wezinye izinto zokujiya zemvelo kufomula yopende kanye nesilinganiso somthamo ngebanga lopendeI-HEC.)
5. enkambisweni yokwenza upende, ukulandelana kwezinyathelo zokufaka isithambisi kufanelekile.
6.Ngenxa yokushukuma okukhulu kanye nomswakama owedlulele ngesikhathi sokuhlakazeka.
7. Ukuguguleka kwe-thickener ngama-microbial.
Ukupakisha:
Izikhwama zephepha ezingama-25kg ezingaphakathi ezinezikhwama ze-PE.
20'I-FCL ilayisha amathoni ayi-12 nge-pallet
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Isikhathi sokuthunyelwe: Jan-01-2024