Qinsun Instruments Co.,Ltd
Contact:qinsun
TEL: 13816217984
Email:info@standard-groups.com
Fax:+86-21-6420 0566
Address:No.258 Ban Ting road, Song Jiang district, Shanghai
Chemical properties of industrial epoxy paint
2024-12-24
1. Chemical stability
The epoxy resin cured by epoxy paint has stable chemical properties and can resist corrosion from a variety of chemicals, including acids, alkalis, salts, and organic solvents. This is because there is no ester bond in epoxy resin, the aliphatic hydroxyl groups contained do not react with alkali, and the paint solidification product is a three-dimensional network structure. Therefore, epoxy resin coatings are often used as anti-corrosion primers, oil tanks, and other inner walls.
2. Weather resistance and corrosion resistance
Although epoxy paint has relatively poor weather resistance and may cause powdering under long-term sunlight exposure, it has strong adhesion to inorganic materials such as cement and metal, especially to substrates such as stainless steel, aluminum alloy, and galvanized sheet. It has excellent adhesion and exhibits excellent corrosion resistance.
3. Heat resistance
Epoxy paint has good heat resistance and can generally remain stable in the temperature range of 80~100℃, and is not easy to soften. Some varieties have a maximum heat resistance temperature of 200℃ or even higher.
4. Electrical insulation
The cured epoxy resin exhibits excellent insulation, and its electrical properties are a breakdown voltage of 35~50kV/mm at room temperature and a volume resistivity of 10Ω·cm, so it is often used as an insulating coating.
5. Curing reaction characteristics
The curing process of epoxy paint is greatly affected by temperature and needs to be constructed under suitable environmental conditions. The reaction rate of epoxy resin and curing agent is one of the technical keys to determining the coating and usability of epoxy paint. The structure and reactivity of the curing agent play a decisive role in the curing reaction rate of epoxy paint. For example, in the addition curing reaction, aromatic amine adducts, phenol/formaldehyde, and amine condensates can quickly cure epoxy resin at low temperatures; No. 300 polyamide has a slow curing reaction with epoxy resin at low temperatures; anhydride and its derivatives can only fully cure with epoxy resin at higher temperatures.
6. Other chemical properties
Epoxy paint can be made into solvent-free or high-solid coatings, which are resistant to organic solvents, heat, and water, and the coating film is non-toxic and odorless after drying, meeting the requirements of environmental protection and health.
In summary, industrial epoxy paint has a variety of excellent chemical properties, which make epoxy paint have broad application prospects in the industrial field.
Previous post:Application fields of emulsified wax
Next chapter:Application fields of hydroxylated acrylic copolymer emulsion
PRODUCT
NEWS
- Eco-Friendly Solvents: Driving Sustainability in Chemistry 2025-04
- High-Purity Silicon: The Foundation of Modern Electronics 2025-04
- Advanced Composite Materials: Shaping the Future of Lightweight Engineering 2025-04
- PolySilazane Resins: Unlocking New Possibilities in Coatings 2025-04
- Silicon Nitride Ceramics: Paving the Way for High-Tech Applications 2025-04
- Advanced Adhesives: Bonding the Future Together 2025-04
- Eco-Friendly Polymers: Leading the Way to Sustainability 2025-04
- Imagine coatings that are not only ultra-durable and corrosion-resistant but also offer superior fle 2025-04
- Advanced Silicon-Based Coatings: Redefining Protection 2025-04
- PolySilazane: The Future of High-Performance Materials 2025-04