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Improvement of Adhesion Properties and Corrosion Resistance of Sol-Gel Coating on Zinc

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Academic year: 2021

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Figure 1. Chemical structures of organic and inorganic network precursors: (i) GPTMS and ASB, (ii) MAP and TEOS, and (iii) UPS.
Figure 4. Salt spray test performed on (a) phosphated zinc for 24 h; (b) phosphated zinc + TEOS/MAP coating after 96 h; and (c) phosphated zinc + GPTMS/ASB coating after 96 h.
Figure 6. Shock test on (a) phosphated zinc + paint; (b) phosphated zinc + TEOS/MAP + paint; and (c) phosphated zinc + GPTMS/ASB + paint.
Figure 7. Optical micrographs of microscratch strip on (a) phosphated zinc + paint; (b) phosphated zinc + TEOS/MAP + paint; and (c) phosphated zinc + GPTMS/ASB + paint.
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