Kupeta Muedzo Uye Kunamatira kweFBE poda yekupotera

Kunamatira kwe FBE poda coating

A cupping tester inonyanya kushandiswa kuona kusungirirwa kweFBE poda coating, uye Fig.7 inoratidza bvunzo yemutemo wecupping tester. Musoro wecupping tester wakaita denderedzwa, uchisundidzira kumashure kwemapanera akavharidzirwa kuti aone kana firimu rakanaka rakatsemuka kana kupatsanurwa kubva kune substrate. Fig.8 icupping test result ye epoxy powder coating. Zvaigona kuonekwa kuti FBE powder coatings iyo isina kuzadzwa neCTBN-EP prepolymers ine zviduku zvinooneka (Fig. 8 (1)), asi zvipfeko zvakazadzwa neCTBN-EP prepolymers (Fig. 8 (2-3)) haana matsemuka anooneka, achiratidza kunamatira kwakanaka uye kuoma.

Inopikisa kubhenda bvunzo dzeFBE poda coatings

Fig.9 inoratidza kuramba kupeta bvunzo mhinduro dzemhando nhatu dzeFBE poda coatings. Kupokana nekupeta kweFBE poda coatings pasina kuzadza neCTBN-EP prepolymers yakashata (Fig.9 (1)), uye chiitiko chekutadza kwakabatana chinowanikwa. Apo CTBN-EP prepolymers inowedzerwa muhupfu hwehupfu, kushorwa kwekupeta kweFBE powder coatings kunovandudzwa zvakanyanya nekuwedzera kwehuwandu hweCTBN-EP prepolymers (Fig.9 (2-3)), uye hapana chiitiko chekukundikana kwakabatana chinowanikwa. , zvichiratidza kupikisa kukuru pakukotama.

Salt spray test yekuputira

Kuramba kwemarara kwemachira kunoongororwa nekufumura machira kumhepo ine mhute yemunyu inogadzirwa nekupfapfaidza 5wt% aqueous NaCl solution pa35 ± 2 °C kwe3000 h zvinoenderana neISO 14655:1999 yakatarwa. Mushure mekubviswa kubva muimba yemunyu yemunyu, sampuli dzose dzinoshambidzwa nemvura yakasvibiswa kuti ibvise chero masara, kuora kwekuputira kunoonekwa. Inogona kuonekwa kubva kuFig.10, mushure mokunge machira akazadzwa neCTBNEP prepolymers (Fig.10b), hapana humbowo hwehutu, uye zvienzaniso hazvina zororo, zvichiratidza kushorwa kwekuputira kunozadzwa neCTBN EP prepolymers. aigona kusangana nezvinodiwa zvechiyero.

Kudzivirirwa kwekuora kweiyo organic coating isina kuremara kunoenderana zvakanyanya nekuvharira kwayo, kureva, kuti inoderedza sei kupararira kwemwando uye ion inoparadza kuburikidza nefirimu. Pakati pemaparamita anobatsira kune zvipingamupinyi zvivakwa ndiko kurwiswa kweiyo pasi pesimbi substrate. Iyo yekupfekedza padhuze nenzvimbo isina chinhu inogadzira passivating layer pane substrate inodzivirira kuwedzera ngura. Nekudaro, inogona kutora maion (pamwe Cl-) nyore kugadzira iyo doped polymer.