Epoxy inozivikanwa kune wese munhu.Rudzi urwu rweorganic matter runodaidzwawo kuti artificial resin, resin glue, etc. Imhando yakakosha yepurasitiki yekupisa.Nekuda kwehuwandu hukuru hweanoshanda uye mapoka epolar, epoxy resin mamorekuru anogona kuchinjika-akabatanidzwa uye kuporeswa nemhando dzakasiyana dzeanorapa, uye akasiyana zvivakwa anogona kuumbwa nekuwedzera akasiyana ekuwedzera.

Se thermosetting resin, epoxy resin ine mabhenefiti ezvakanaka zvemuviri zvivakwa, magetsi ekudzivirira, adhesion yakanaka, alkali resistance, abrasion resistance, yakanakisa manufacturability, kugadzikana uye mutengo wakaderera.Ndiyo imwe yeakanyanya kuwanda maresin anoshandiswa mu polymer zvinhu.

Parizvino, epoxy resin inonyanya kushandiswa muindasitiri yekupfekedza, uye iyo coating yakagadzirwa nayo se substrate inonzi epoxy resin coating.Zvinonzi epoxy resin coating chinhu chakakora chekudzivirira chinogona kushandiswa kuvhara chero chinhu, kubva pasi, midziyo mikuru yemagetsi kusvika kune zvidiki zvigadzirwa zvemagetsi, kudzivirira kubva mukukuvadzwa kana kusakara.Pamusoro pekusimba zvakanyanya, epoxy resin coatings anowanzo shingirira kune zvinhu zvakaita se ngura uye kemikari corrosion, saka anofarirwa mumaindasitiri mazhinji akasiyana uye mashandisiro.

Chakavanzika che epoxy coating durability

Sezvo epoxy resin iri yechikamu chepolymer yemvura, inoda rubatsiro rweanorapa maajenti, ekuwedzera uye pigment kuti iite munyama inodzivirira corrosion epoxy coating.Pakati pavo, nano oxides inowanzowedzerwa se pigment uye mafirita kune epoxy resin coatings, uye akajairwa vamiriri ari silica(SiO2), titanium dioxide(TiO2), aluminium oxide(Al2O3), zinc oxide(ZnO), uye isingawanzo oxide yepasi.Nehukuru hwavo hwakakosha uye chimiro, aya nano oxides anoratidza akawanda akasiyana emuviri uye makemikari zvimiro, izvo zvinogona kuwedzera zvakanyanya ma mechanic uye anti-corrosion zvimiro zvejasi.

Pane nzira mbiri huru dze oxides nano particles yekusimudzira kushanda kwekudzivirira kwe epoxy coatings:

Kutanga, nehukuru hwayo hudiki, inogona kunyatsozadza micro-cracks uye pores akaumbwa neko shrinkage panguva yekurapa maitiro epoxy resin, kuderedza kupararira nzira yehutsvina midhiya, uye kuwedzera shieling nekudzivirira kushanda kwejasi;

Chechipiri ndechekushandisa kuomarara kwepamusoro kweiyo oxide particles kuti iwedzere kuoma kwe epoxy resin, nekudaro kunowedzera mechanical properties yejasi.

Pamusoro pezvo, kuwedzera huwandu hwakakodzera hwenano oxide particles kunogonawo kuwedzera iyo interface yekubatanidza simba reiyo epoxy coating uye kuwedzera hupenyu hwebasa rejasi.

Basa renano silicaupfu:

Pakati peaya maokisi nanopowders, nano silicon dioxide (SiO2) imhando yekuvapo kwepamusoro.Silica nano is anorganic non-metallic material ine yakanakisa kupisa kupisa uye oxidation kuramba.Yayo mamorekuru mamiriro matatu-dimensional network ine [SiO4] tetrahedron seyakakosha zvimiro unit.Pakati pavo, maatomu eokisijeni nesilicon akabatanidzwa zvakananga ne-covalent bonds, uye chimiro chakasimba, saka chine makemikari akagadzikana ehupfumi, kupisa kwakanyanya uye kusagadzikana kwemamiriro ekunze, nezvimwewo.

Nano SiO2 inonyanya kutamba basa re anti-corrosion filler mune epoxy coating.Kune rumwe rutivi, silicon dioxide inogona kunyatsozadza micro-cracks uye pores inogadzirwa mukurapa maitiro epoxy resin, uye kuvandudza kupindira kwekupinda kwejasi;kune rumwe rutivi, Mapoka anoshanda e nano-SiO2 uye epoxy resin anogona kuumba muviri / kemikari cross-linking points kuburikidza neadsorption kana reaction, uye kuunza Si-O-Si uye Si-O-C zvisungo mumaketani ema molecular kuti aumbe. matatu-dimensional network chimiro chekuvandudza coating adhesion.Uye zvakare, iyo yakakwira kuomarara kwe nano-SiO2 inogona kuwedzera zvakanyanya kupfeka kuramba kwejasi, nekudaro kuwedzera hupenyu hwebasa rejasi.