一种高附着力耐高温粉末涂料及制备方法
By coating potassium hexatitanate whiskers with zirconium phosphate and treating them with low-melting-point glass powder, the problem of decreased coating adhesion at high temperatures was solved, and the high adhesion and high-temperature resistance were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG CHAOLANG ADVANCED MATERIALS
- Filing Date
- 2026-04-07
- Publication Date
- 2026-07-17
AI Technical Summary
The problem of decreased adhesion or brittle peeling of existing high-temperature powder coatings at high temperatures is mainly due to the mismatch of the thermal expansion coefficients between the coating and the metal substrate and the excessive interfacial shear stress caused by thermal stress.
The process involves coating potassium hexatitanate whiskers with zirconium phosphate and low-melting-point glass powder. The zirconium phosphate enhances the bonding strength by reacting with epoxy resin and the surface of the metal substrate. The low-melting-point glass powder re-bonds at high temperature to dissipate stress and forms an interpenetrating network structure with the epoxy resin.
It improves the adhesion and mechanical properties of the coating at high temperatures, reduces the generation of microcracks, and enhances the high-temperature resistance of the coating.
Smart Images
Figure CN121975403B_ABST