Leveling agentsanoshandiswa mukupotera anowanzo kupatsanurwa kuita zvakasanganiswa zvinonyungudutsa, acrylic acid, silicone, fluorocarbon polymers uye cellulose acetate. Nekuda kwehunhu hwayo hwekudzikama kwepasi, maajenti ekuyeresa haangogone chete kubatsira iyo coating kusvika padanho, asi inogona kukonzera mhedzisiro. Panguva yekushandiswa, iyo inonyanya kutariswa ndeye yakashata mhedzisiro yeaya ekuyeresa pane recoatability uye anti-cratering zvivakwa zvejasi, uye kuenderana kwevakasarudzwa nhanho vamiririri kunoda kuongororwa kuburikidza nekuyedza.

1. Mixed solvent leveling agent

Inonyanya kuumbwa nepamusoro-kubikira-point inonhuhwirira hydrocarbon solvents, ketoni, esters kana zvakanakisa zvinonyungudutsa zvemapoka akasiyana anoshanda, uye yakakwirira-inofashaidza-inonyungudutsa misanganiswa. Paunenge uchigadzira uye uchishandisa, kutarisisa kunofanirwa kubhadharwa kune yayo volatilization mwero, volatilization chiyero uye kunyungudika, kuitira kuti iyo yekupfeka ine avhareji yekunyungudika kunyungudika mwero uye solubility panguva yekuomesa. Kana iyo volatilization rate yakanyanya kuderera, icharamba iri mufirimu yepende kwenguva yakareba uye haigoni kusunungurwa, iyo inokanganisa kuoma kwefirimu yepende.

Iyi mhando yeajenti yekuyera inongokodzera kuvandudza kuremara kwekuyera (senge shrinkage, kuchena, uye kushomeka kupenya) kunokonzerwa nekukasira kuomeswa kweiyo yakanyungudika yakanyungudika uye kushomeka kunyungudika kwezvinhu zvepasi. Iyo dosage inowanzo 2% ~ 7% yepende yakazara. Ichawedzera nguva yekuoma kwekuputira. Kune tembiricha yekuomeswa kwekamuri (senge nitro pendi) inogara ichidonha kana ichiiswa pafacade, haingobatsiri chete nekudzikamisa, asi inobatsirawo kuvandudza gloss. Munguva yekuomeswa, inogona zvakare kudzivirira mabhubhu ekunyungudutsa uye mapinhole anokonzerwa nekukasira kubuda kweiyo solvent. Kunyanya kana inoshandiswa pasi pekushisa kwepamusoro uye hunyoro hwemamiriro ekunze, inogona kudzivirira pendi yefirimu pamusoro kubva pakuoma nguva isati yakwana, inopa yunifomu yekunyungudutsa volatilization curve, uye kudzivirira kuitika kwehute chena mu nitro pendi. Iyi mhando yeajenti yekuyera inowanzo shandiswa pamwe chete nemamwe maejenti ekuyera.

2. Acrylic leveling agents

Rudzi urwu rwekuyeresa mumiririri kazhinji ndeye copolymer ye acrylic esters. Hunhu hwayo ndeiyi:

(1) Iyo alkyl ester ye acrylic acid inopa basa repamusoro pepamusoro;

(2) ZvayoCOOH,oh, uyeNR inogona kubatsira kugadzirisa kuenderana kweiyo alkyl ester chimiro;

(3) Huremu hwema molecular huremu hwakanangana nekupedzisira kuparadzira kuita. Yakakosha kuenderana uye ketani yekumisikidzwa kwepolyacrylate mamiriro anodiwa ekuva akakodzera mumiriri wekuyera. Yayo inogoneka yekuyera nzira inonyanya kuratidzwa mune inotevera nhanho;

(4) Inoratidza anti-foaming uye defoaming zvivakwa mune akawanda masisitimu;

(5) Chero bedzi kune nhamba shomanana yemapoka anoshanda (akadai se -OH, -COOH) muhutano hwekugadzirisa, kukanganisa kwekugadzirisa zvakare kunenge kusingaoneki, asi kuchine mukana wekukanganisa kudzorerazve;

(6) Panewo dambudziko rekufananidza polarity uye kuenderana, izvo zvinodawo kusarudzwa kwekuedza.

3. Silicone leveling agent

Silicones imhando yepolymer ine silicon-oxygen bond chain (Si-O-Si) sema skeleton uye organic mapoka akanamatira maatomu esilicon. Mazhinji makomisheni esilicone ane cheni dzeparutivi ane yakaderera pamusoro pesimba, saka mamorekuru esilicone ane simba rakaderera repamusoro uye kuderera kwakanyanya kwepasi.

Iyo inonyanya kushandiswa polysiloxane yekuwedzera ndeye polydimethylsiloxane, inozivikanwawo semethyl silicone mafuta. Kunyanya kushandiswa kwayo kunge defoamer. Mamodheru ehuremu akaderera anonyanya kushanda mukusimudzira kuenzana, asi nekuda kwenyaya dzakakomba dzekuenderana, anowanzo kuderera kana kusakwanisa kudzoka zvakare. Naizvozvo, polydimethylsiloxane inofanirwa kugadziridzwa isati yagona kushandiswa zvakachengeteka uye zvinobudirira mukupfeka.

Nzira huru dzekushandura ndeidzi: polyether modified silicone, alkyl uye mamwe maside group modified silicone, polyester modified silicone, polyacrylate modified silicone, fluorine modified silicone. Kune dzakawanda nzira dzekugadzirisa dze polydimethylsiloxane, asi dzese dzakanangana nekuvandudza kuenderana kwayo nemachira.

Rudzi urwu rwekuyeresa mumiririri kazhinji rune zvese zvinokwirisa uye nekubvisa furo mhedzisiro. Kuenderana kwayo nejasi kunofanirwa kutsanangurwa kuburikidza nemiedzo isati yashandiswa.

4.Key pfungwa dzekushandisa

Sarudza iyo chaiyo mhando: Sarudza iyo yakakodzera yekuyera mumiriri zvinoenderana nerudzi uye zvinoshanda zvinodikanwa zvejasi. Pakusarudza mumiriri wekuenzanisa, kuumbwa kwayo uye zvivakwa pamwe nekuenderana kwayo nejasi pachayo kunofanirwa kutariswa; panguva imwe chete, akasiyana-siyana ekuyera maajenti kana zvimwe zvinowedzera zvinowanzo shandiswa musanganiswa kuenzanisa nyaya dzakasiyana.

Teerera kune huwandu hwakawedzerwa: kuwedzera zvakanyanya kunokonzeresa matambudziko senge shrinkage uye sagging pamusoro peiyo coating, nepo kushoma kuwedzera hakuzogone kuenzana. Kazhinji, iyo mari inowedzerwa inofanirwa kutariswa zvichibva pane viscosity uye chiyero chinodiwa chejasi, tevera mirairo yekushandiswa kweiyo reagent, uye sanganisa iwo chaiwo bvunzo mhinduro.

Nzira yekuputira: Kukwirisa kwekuita kwejasi kunokanganisa nzira yekupfeka. Paunenge uchishandisa iyo yekuyera mumiriri, unogona kushandisa brashi, roller coating kana kupfapfaidza kupa kutamba kwakazara kune basa reiyo mumiriri.

Kukurudzira: Paunenge uchishandisa mumiririri wekuenzanisa, pende inofanira kunyatsogadziriswa kuitira kuti iyo inogadzirisa iparadzirwe zvakaenzana mupende. Iyo nguva yekukurudzira inofanirwa kutariswa zvinoenderana nehunhu hweiyo mumiriri wekuenzanisa, kazhinji isingapfuuri maminetsi gumi.

Nanjing Reborn New Materials inopa akasiyanaleveling agentskusanganisira Organo Silicone ndiyo uye Non-silicon iyo yekupfeka. Kufananidza BYK akatevedzana.


Nguva yekutumira: May-23-2025