Umgangatho wembonakalo yoshicilelo lweglue elastiki emhlophe yimbonakalo yangaphandle yomgangatho kunye nomgangatho wayo, obandakanya imbonakalo yelizwe, ukucoleka kunye nolwelo lokuprinta iglue emhlophe. Inkangeleko yomgangatho olungileyo wokushicilela iglu eelastiki emhlophe kufuneka ibe lulwelo olufanayo, i-viscous semi-paste emhlophe, ithambile kwaye ilungelelene, i-fluidity elungileyo, kunye nomphezulu omenyezelayo. Nangona kunjalo, umgangatho ombi wokuprinta iglue emhlophe e-elastic ihlala inokuqina, ukuntywila kwamanzi, ukuntywila kunye nokwahlulwa kwamanzi, i-viscosity egqithisileyo, kunye nomzimba ofana nokuncamathelisa ngexesha logcino, oluchaphazela ngokuthe ngqo umgangatho walo, umbala, amandla okugquma, ukumelana kwamanzi, ukulinganisa, ukungaboni, iglosi, isivuno sombala kunye nezinye iimpawu.
Kukho izinto ezininzi ezichaphazela umgangatho wembonakalo yokushicilela iglue e-elastic emhlophe: izinto eziluhlaza ezifana ne-resin (i-adhesive) yokumanzisa kunye ne-arhente yokusabalalisa, i-thickener, filler kunye nefomula yayo kunye nenkqubo yokuvelisa iya kuyichaphazela.
Izizathu ezichaphazela uMgangatho wenkangeleko yoShicilelo lweMucilage oMhlophe
1. Igrisi yinto eyenza ifilimu yokuprinta iglue elastiki emhlophe. Ngexesha lokuphendula kwe-polymerization yekhemikhali ye-resin, ubushushu, ixesha, isantya sokuphendula, ukugcinwa kobushushu, isantya esishukumisayo kunye nokongeza izongezo kuya kubangela ukuphendulwa kweekhemikhali ezingaphelelanga kunye nentsalela yee-monomers ezininzi kakhulu ziya kubangela ukungasebenzi kakuhle kweekhemikhali kunye nokuzinza komzimba, kwaye i-resin nayo iya kubumbana kwaye idibanise. , okukhokelela kwi-delamination yokushicilela iglue e-elastic emhlophe, ivumba elinamandla, ukunamathela okungahambi kakuhle, ukuvala inethiwekhi kunye nezinye izinto ezingazinzanga. Ke ngoko, i-resin kufuneka ibe nokuzinza okuhle kweekhemikhali, ukuzinza kokugcinwa, ukuqina okuhle, ukunamathela okuqinileyo, ukuthamba kunye neempawu ezinganamatheli.
2. Ngokujonga kwisantya sokudilika (umthetho kaStokes)
V=218r2(P-P1)/η
Kwifomula: V-isantya esiwayo, ㎝/s; iradiyasi ye-r-particle, ㎝;
I-P-pigment particle density, g/cm3; Ubuninzi be-P1-ulwelo, i-g/cm3
η-ubungakanani besuntswana lolwelo, 0.1pa.s
Isantya se-sedimentation ye-filler sinobudlelwane obuninzi kunye nokucolwa kokugaya, oko kukuthi, ubukhulu becala lokusila, isantya se-sedimentation ye-filler iya kwandiswa. Ukuprinta iglue emhlophe e-elastic iya kwahlula amanzi kwaye ijikeleze kumanqanaba ngexesha elifutshane. Ngoko ke ukucoleka ngokubanzi kungaphakathi kwe-15-20μm. Nangona kunjalo, amasuntswana e-pigment acolekileyo kuphela alibazisa ukuzinza kwaye awathinteli ukuzinza. Ukushicilela iglue emhlophe e-elastic yi-viscous liquidity ene-non-Newtonian fluidity, kwaye i-viscosity yayo kufuneka ilinganiswe nge-viscometer ejikelezayo.
3. Impembelelo yokushicilela izongezo zeglue elastiki emhlophe
I-arhente yokumanzisa kunye nokusabalalisa kwi-mucilage e-elastic emhlophe yokushicilela inokusasaza ngokulinganayo izihluzi ezahlukeneyo. Uthungelwano olukhululekileyo lwaziswa ekubunjweni kwalo ukwenza amasuntswana okugcwalisa anqunyanyiswe ngaphandle kwentlenga, anciphise ngokufanelekileyo i-viscosity ye-slurry, kwaye athintele ukuprinta i-elastic mucilage emhlophe ukuba ingashukumi. kunye nokubekwa kwemvula; ukongezwa komgangatho kunciphisa ukuzibamba phakathi kwamakhonkco e-macromolecular, kunciphisa ukukhuhlana kwezinto kunye nokunciphisa i-viscosity. I-thickener idlala indima ebaluleke ngakumbi ekulungiseni umgangatho wembonakalo yokushicilela iglue emhlophe e-elastic.
4. Impembelelo yokushicilela inkqubo yokuvelisa iglue emhlophe
Isantya esigqithisileyo se-agitator siya kubangela ukuba i-resin ihlanjululwe yi-shear ephezulu, kunye nokongezwa okungalunganga kwezongezo ezifana ne-dispersants, i-flow agents, kunye ne-thickeners nazo ziya kukhokelela kwi-demulsification yokushicilela iglue e-elastic emhlophe kunye nokwakhiwa kwamasuntswana e-gel. Lawula ixesha, ubushushu kunye nokucoleka kwemveliso yenkqubo yemveliso.
Indlela yoLawulo loMgangatho weNkangeleko yokuShicilela i-Elastic White Glue
1. Khetha intlaka efanele iimfuno zoyilo lwefomula
I-resin yeyona nto ibalulekileyo yoshicilelo lwe-elastic glue formula. I-resin ehlukeneyo ineentlobo ezahlukeneyo zokusabalalisa ubungakanani be-particle, i-chemical ion stability, i-mechanical stability, i-oil-in-oil, i-oil-in-water kunye ne-hydrophilicity, enempembelelo enkulu kwimbonakalo. Ngoko ke, xa ukhetha i-resin, kuyimfuneko ukuqwalasela ngokupheleleyo iimpawu ze-resin ngokwayo, ngokukodwa ukuhambelana kwe-resin, ukwenzela ukuba ulungelelanise ukukhethwa kweefayili kunye nezongezo kwifomula yenkqubo.
2. Tshatisa kakuhle ne-dispersant kunye ne-level agent
Iiarhente zomgangatho kunye nezisasazo eziveliswe ngabavelisi abohlukeneyo banamaxabiso ahlukeneyo eHLB. Ngokuqhelekileyo, i-dispersants kunye ne-level agents (esekelwe emanzini) kunye namaxabiso amakhulu e-HLB aya kunciphisa i-viscosity yenkqubo ngakumbi; kunye nokunyuka kwamaxabiso e-HLB, iintlobo ezahlukeneyo ze-agent zokusabalalisa kunye nokulinganisa ziya kunciphisa i-viscosity yenkqubo kwaye ichaphazele i-resin Kwakhona inkulu. I-agent ye-hydrophilic disspersing kunye ne-level agent iya kuphucula ukugcinwa kokugcinwa kweglue e-elastic emhlophe, kunye ne-hydrophobic dispersing kunye ne-agent agent iya kuphucula ukunyanzeliswa kwe-scrub yokushicilela iglue emhlophe e-elastic emva kokubunjwa kwefilimu. Ke ngoko, indibaniselwano ye-hydrophilic kunye ne-hydrophobic dispersing kunye ne-level agents inokuphucula ngokufanelekileyo ukugcinwa kweglue emhlophe e-elastic. Ukuba i-ejenti yokusabalalisa kunye nenqanaba yongezwa, i-hydrophilicity yayo kunye ne-fluidity iya kuphuculwa, kodwa ukukhawuleza kwayo kokuhlamba kuya kuncitshiswa kwaye ukuxhathisa kwamanzi kuya kuhla. Ukuba ukusabalalisa okuncinci kunye ne-ejenti yokulinganisa iyongezwa, iya kuchaphazela ngokuthe ngqo umgangatho wokubonakala kwayo, ngoko ngokubanzi kufuneka ilawulwe phakathi kwe-3% -5%.
3. Ukukhetha okunengqiqo kwee-thickeners ukuphucula ukusebenza kokushicilela iglue e-elastic emhlophe
Okwangoku, ii-thickeners eziqhele ukusetyenziswa kushicilelo lweglue elastiki emhlophe ziquka: i-polyacrylic acid, i-cellulose ether, i-alkali-enyibilikayo i-acrylic, kunye ne-non-ionic associative polyurethane.
I-cellulose thickeners (ikakhulukazi iquka i-hydroxypropyl methyl cellulose, i-hydroxyethyl cellulose, kunye ne-hydroxypropyl cellulose) inokusebenza okuphezulu kokuqina kunye nokuzinza okulungileyo, kodwa ukulinganisa okungahambi kakuhle kwaye kulula ukubangela amanqaku ewebhu ekushicileleni kwesikrini, kwaye ibe nefuthe elithile kwi-gloss ye-slurry. Ii-polyurethane thickeners zibiza kakhulu kwaye azifane zisetyenziswe kushicilelo lweglue elastiki emhlophe. I-polyacrylic acid thickeners ineempawu ezintle zokulinganisa, akukho lula ukuvelisa amanqaku enethiwekhi, ayichaphazeli isicwebezelo sodaka, inokumelana kakuhle namanzi kunye nokuzinza kwebhayoloji, kwaye ihambelana kakuhle, ukwenzela ukuba amakhonkco eemolekyuli enziwe phakathi kwamasuntswana, okukhokelela kwiResin. -i-filler-resin yenza i-network structure, inikezela ngesantya esiphezulu kunye nesantya esiphezulu se-shear, okwenza iglue e-elastic emhlophe ibe ne-rheology engcono, kwaye yenza ukubonakala kwe-milky white fluid semi-paste.
4. Sebenzisa inkqubo yokuvelisa echanekileyo
I-thickener kufuneka ihlanjululwe ngamanzi ngaphambi kokuba yongeze. I-resin kufuneka yongezwe kuqala, kwaye i-agitator kufuneka igcinwe kwisantya esiphakathi-phantsi ukuphepha ukuchithwa kwe-resin okubangelwa kukucheba ngokugqithiseleyo. Ngethuba lenkqubo yokuvelisa, i-viscosity ye-slurry kufuneka ibonwe nangaliphi na ixesha, kwaye isantya esichukumisayo kunye nokushisa kwe-slurry ngexesha lokuvelisa kufuneka kulawulwe kakuhle. Kwaye ngaphambi kokulungelelanisa i-slurry, yongeza inani elifanelekileyo le-surfactant ukukhusela amasuntswana e-resin kwi-demulsification.
Ixesha lokuposa: Mar-04-2023