Advantages of epoxy oil repellent
The core advantages of epoxy oil repellent are reflected in its oil resistance, long-term stability, environmental compatibility and comprehensive economic benefits. The following is an analysis from a professional perspective:
1. Breakthrough in oil resistance
Surface oleophobic barrier
Epoxy oil repellent forms a "lotus effect" on the coating surface through molecular structure optimization:
Contact angle>110°: Oil drops automatically roll off when dripping, reducing the risk of penetration (such as in the application of the inner wall of oil storage tanks, the residence time of oil droplets is shortened from 2 hours of traditional coatings to 10 minutes).
Dynamic antifouling: Even if oil remains, subsequent cleaning only requires water rinsing, without solvent scrubbing (food processing plant floor case: cleaning efficiency increased by 60%).
Deep and dense protection
Oil repellent molecules fill the pores of epoxy resin to form a "nano-level sealing layer":
Porosity <0.1%: Effectively block the penetration of diesel, lubricating oil and other media (ASTM D471 test shows that the coating does not swell after 72 hours of immersion).
Chemical resistance enhancement: On the basis of maintaining the original acid and alkali resistance, the oil-resistant coating has a 3-fold tolerance to grease.
2. Long-term stability guarantee
No damage to mechanical properties
The amount of oil-resistant agent added is only 0.5%-2%, which does not affect the curing reaction and mechanical strength of epoxy resin:
Hardness ≥ 2H: Wear resistance passes Taber test (CS-10 wheel, 500g load) > 500 turns, suitable for high friction scenarios (such as mold protection).
Adhesion > 5MPa: The bonding strength with the metal substrate meets the GB/T 9286 standard, and there is no shedding during long-term use.
Environmental adaptability
The oil-resistant coating has stable performance under extreme working conditions:
Temperature resistance range -40℃ to 120℃: Suitable for high temperature environments such as petrochemical pipelines and industrial equipment.
Anti-ultraviolet aging: In outdoor applications, the coating color change rate ΔE < 2 (ASTM D2244 standard), and the service life is extended to more than 10 years.
3. Environmental protection and safety compatibility
Low VOC formula
The new oil-repellent agent adopts a solvent-free or water-based system with a VOC content of <50g/L:
Construction safety: no irritating odor, reducing the health risks of construction workers (a case of a food factory renovation project: the employee inhalation hazard complaint rate decreased by 90%).
Regulatory compliance: complies with EU REACH and China VOCs emission standards, helping enterprises to transform green.
Improved safety performance
The oil-repellent coating blocks the contact between grease and metal, reducing the risk of fire and explosion:
Static dissipation: surface resistivity of 106-109Ω, preventing static electricity accumulation (in oil tank applications, the risk of static electricity ignition is reduced by 80%).
Corrosion protection enhancement: delaying electrochemical corrosion of metal substrates caused by grease penetration, reducing equipment failure rate by 50%.
4. Significant comprehensive economic benefits
Reduced costs throughout the life cycle
Anti-oil agents extend equipment life by reducing maintenance times:
Initial investment: The cost of anti-oil coatings is only 5%-10% higher than that of traditional coatings, but the overall cost is reduced by 30%-50% (e.g., oil tank projects: maintenance costs are reduced from 1 million yuan/year to 400,000 yuan/year).
Return on investment: A project case shows that the investment recovery period is only 2 years, and subsequent cost savings increase year by year.
Improved production efficiency
Anti-oil coatings reduce downtime and cleaning costs:
Mold protection: Demolding efficiency is increased by 20%, reducing mold loss (a case of an automotive parts factory: mold replacement cycle is extended by 1 times).
Food packaging: Extend the shelf life of food by 15%-30%, and reduce the return rate caused by damaged packaging.
5. Technology iteration and industry trends
Intelligent development: Nanotechnology enables dynamic adjustment of oil resistance (e.g., enhanced oleophobicity when temperature rises).
Multifunctional integration: Anti-oil agents are combined with antibacterial and self-cleaning functions to expand application scenarios (e.g., hospital operating room floors).
Circular economy: Oil-repellent coatings can be recycled and reused, reducing waste disposal costs.
Summary: Through technological breakthroughs, epoxy oil repellents have formed significant advantages in oil resistance, stability, environmental protection and economy, becoming the preferred protection solution in the fields of petrochemicals, food processing, industrial equipment, etc. Its technological iteration is driving the industry to upgrade towards green and intelligent directions.