Crosslinker inonyungudika mumvura, polymer inonyungudika mumvura, ipolymer inogadzirwa nenzira dzakasiyana-siyana ichishandisa mvura senzira yekupararira uye kuwedzera huwandu hwakakodzera hwe emulsifier. Crosslinker dzinonyungudika mumvura dzinowanzo nyungudika mumvura uye dzinoshandiswa mu coatings, inks, adhesives nezvimwe zvigadzirwa. Nekuda kwekushandiswa kwe water-based crosslinkers uye maitiro ekugadzira akaomarara, crosslinker dzinonyungudika mumvura shoma dzinoshandiswa mu coatings, inks uye adhesives. Water-based crosslinkers dzine viscosity yakaderera, nyore kupararira, hapana furo, hapana free formaldehyde nezvimwe zvinhu. Yave ichishandiswa zvakanyanya mu coatings, inks uye adhesives.
Mvura-based cross-linking agents ine zvinotevera maitiro:
- Kugadzikana kwakanaka kumvura uye zvakawanda zvinonyungudutsa
Mvura-based cross-linking agent nemvura senzira yekuparadzira, saka kugadzikana kwemvura uye zvakawanda zvinonyungudutsa zvakanaka kwazvo. Kugadzikana kwemuchinjika-inobatanidza mumiriri mune aqueous medium kunoenderana nehuremu hwayo hwemamorekuru uye chimiro. Sezvo muchinjiko wemuchinjika uchinyungudika mumvura, unogona kunyungudika zvachose mumvura, saka hauzonyungudika. Mvura-based cross-linking agent ine carboxyl boka, mamorekuru ayo ane carboxyl boka, izvo zvinoita kuti mvura-based cross-linking agent ine kugadzikana kwakanaka. Kazhinji, kuwirirana kwekubatana pakati peboka recarboxyl neboka re hydrophilic kunoitika kunyanya pakati pemapoka maviri e hydrophilic. Semuenzaniso, acrylic emulsions ane carboxyl mapoka uye hydroxyl mapoka, uye pane hydrogen bonding pakati pavo. Iyi hydrogen bonding inoita kuti acrylic emulsions ave nekugadzikana kwakanaka uye haisi nyore kukanganiswa nehunyoro, alkali, kupisa, chiedza, okisijeni nezvimwe zvinhu. Uye inogona kuramba yakagadzikana pasi pesimba rezvinhu zvakasiyana-siyana, sekushisa, chiedza, nezvimwe.
- Kwete-chepfu uye isingakuvadzi, haizokonzeri kusvibiswa kwezvakatipoteredza
Iko kushandiswa kwemvura-based crosslinker ndeye kushandisa mvura senzira yekuparadzira, kuwedzera emulsifier uye initiator, uye kuita pane imwe tembiricha kugadzira polymer. Iyi polymer haina chepfu uye haina njodzi, uye haizokonzeresa kusvibiswa kwezvakatipoteredza.
(1) Inogona kushandiswa mumhando dzakasiyana-siyana dzekunamatira, dzakadai se: mvura-based polyurethane, mvura-based acrylic, mvura-based polyurethane, mvura-based epoxy, nezvimwewo;
(2) Inogona kushandiswa pakupisa kwekamuri uye zvakare pakupisa kwakanyanya, iyo inogona kusangana nezvinodiwa zvekushandisa munzvimbo dzakasiyana siyana;
(3) Yakasiyana-siyana yekushandiswa, kwete chete kune substrates yezvinhu zvakasiyana-siyana, asiwo zvezvinhu zvakadai sehuni nemapepa;
(4) Kuvaka kwakaringana, kunogona kuiswa nekupfapfaidza, brashi kana roller coating;
(5) Inogona kushandiswa nemhando dzakasiyana-siyana dzekuwedzera;
(6) Kuwanda kwe crosslink uye simba rayo;
(7) Zviri nyore kushandisa, zvinogona kugadziriswa zvinoenderana nezvinodiwa nevashandisi.
Mvura-based crosslinkers inoshandiswa zvakanyanya mukuputira, ingi, uye zvinonamira zvinoshandiswa zvakanyanya. Sekugadzirisa, mvura-based crosslinker inogona kushandiswa kuvandudza firimu-kuumba maitiro emvura-based coatings, inogona kushandiswa kugadzirisa fluidity yemvura-based inki, inogona kushandiswawo kuvandudza kudzivirira kwemvura yemvura-based adhesives.
Mvura-based crosslinkers inowanzogadzirwa nemvura senzira yekuparadzira, uye huwandu hwakakodzera hwekuparadzira hunogona kuwedzerwa panguva yekushandiswa. Iko hakuna chikonzero chekushandisa organic solvents yekunyungudika, iyo ine zvishoma inokanganisa nharaunda yekugadzira uye iri nyore kushandisa. Mvura-based crosslinker mukushandiswa kwejasi: Mvura-based crosslinker inonyanya kushandiswa mukuputira, inogona kuita kuti kupora kupora kumhanyisa nekukurumidza uye kudzikisa tembiricha yekurapa. Panguva imwecheteyo, nekuti mvura-based crosslinkers inonyanya kushandisa mvura seyekuparadzira svikiro, hapana chikonzero chekuwedzera organic solvents panguva yekugadzira, iyo inoderedza zvakanyanya mutengo wekugadzira uye inoderedza mutengo wechigadzirwa. Uye zvakare, inogona zvakare kuderedza kuburitswa kwezvinhu zvinokuvadza zvakaita seVOC.
Mvura-based crosslinker inogona kushandisa mvura seinonyungudutsa pasina chero organic solvent, iyo inoderedza kusvibiswa kwezvakatipoteredza ne organic solvent mukugadzira maitiro. Yakaderera viscosity iri nyore kuparadzira, uye inogona kuwana yakakwirira-yekubatanidza-yekubatanidza kunyatsoshanda ine yakaderera dosing yekumisikidza uye shoma dosing mwero. Inogona kugadzirirwa pane yakaderera tembiricha. Yemahara yemahara formaldehyde, kudzivirira dambudziko rekusvibiswa kwe formaldehyde.
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