A water-based anticorrosive wax that can be sprayed on a high-temperature electrophoresis frame, a preparation method and application thereof

By using a modified carnauba wax and an amino-functionalized graphene oxide emulsifier system, the problem of poor film formation of water-based anticorrosive wax under high temperature conditions was solved, achieving high-efficiency anticorrosive and aging-resistant performance on the electrophoretic frame of commercial vehicles.

CN118745320BActive Publication Date: 2026-07-24SHENYANG PARKERIZING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG PARKERIZING
Filing Date
2024-06-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing water-based anti-corrosion waxes suffer from poor film formation, poor aging resistance, insufficient film hardness, and poor dirt resistance due to high-temperature tackiness during application, failing to meet the anti-corrosion requirements of electrophoretic car frames for commercial vehicles.

Method used

A combination of high-melting-point biomass hard wax, slow-release modified lecithin microsphere emulsifier, monoethanolamine and deionized water is used to chemically and microbially modify carnauba wax, which is then combined with macroporous amino-functionalized graphene oxide to form an emulsifier system with a slow-release effect, ensuring film stability at high temperatures.

Benefits of technology

It achieves good film formation on high-temperature electrophoresis vehicle frames, avoids film formation defects caused by moisture blockage, improves the hardness and scratch resistance of wax film, meets the summer construction needs of commercial vehicles, and improves corrosion resistance and appearance.

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Abstract

The application discloses a water-based anticorrosive wax which can be sprayed on a high-temperature electrophoresis frame, and a preparation method and application thereof. The water-based anticorrosive wax comprises 30-40 parts of high-melting-point biomass hard wax, 5-8 parts of slow-release modified lecithin microsphere emulsifier, 0.5-1 part of monoethanolamine and 35-50 parts of deionized water, and is prepared according to a weight ratio. Microorganisms are used as a modification medium to graft organic acid onto a molecular chain of the Brazil palm wax, so that the hardness, water resistance, melting point and anticorrosion performance of the wax are improved, and the wax is used as a film-forming material. The application specially provides amino-functionalized graphene oxide with a large-pore structure to prepare the anticorrosive wax by coating the emulsifier microspheres. The structure has a slow-release function and can maintain the viscosity of an emulsification system stable. Due to the porous structure of the modified graphene, a path is provided for water vapor volatilization of the wax liquid under high-temperature conditions, so that film-forming defects caused by water vapor blocking are avoided, and the quality requirement of a host factory on the anticorrosion of the frame is met.
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