Anticorrosion epoxy powder paint used outside marine steel pipe pile
An epoxy powder, steel pipe pile technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of poor protection performance, marine biofouling, easy peeling of coatings, etc., and achieve good scratch resistance. sexual effect
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Embodiment 1
[0026] Example 1 SEBF-6-1
[0027] A marine steel pipe pile external anti-corrosion epoxy powder coating SEBF-6-1, its formula is shown in Table 1.
[0028] The formula (percentage by weight) of table 1 coating SEBF-6-1
[0029]
[0030] The surface roughness of the coating SEBF-6-1 is equivalent to the roughness of the original material of the steel pipe pile, and the surface roughness is adjustable. When the coating thickness is ≥300um, the roughness is about 30-80um, and the Keep the overall flatness to meet the marine geological conditions where the steel pipe piles and steel pipe piles are located - the embedded strength required by sandy soil, silty sand, etc., and the coating has good scratch resistance, bacterial degradation resistance, and cathodic stripping resistance Good, strong chemical resistance.
[0031] The coating is mainly used in the submud area of marine steel piles, and the thickness of a single layer of SEBF-6-1 epoxy powder coating is generally ≥...
Embodiment 2
[0032] Example 2 SEBF-6-2
[0033] A marine steel pipe pile external anti-corrosion epoxy powder coating SEBF-6-2, its formula is shown in Table 2.
[0034] The formula (percentage by weight) of table 2 coating SEBF-6-2
[0035]
[0036] The SEBF-6-2 high-strength mechanical coating is applied on the outside of the coating SEBF-6-1 to form a double-layer composite structure that is more scratch-resistant, impact-resistant and wear-resistant. SEBF-6-2 coating has a scratch performance of less than 150μm for a scratch head with a diameter of 2.0mm under a load of 30kg, which exceeds the general anti-scratch coating. The coating has good resistance to seawater penetration, erosion resistance and wear resistance , impact resistance, marine biofouling resistance.
[0037] The coating is mainly used on the outside of the double-layer structural coating in the underwater area of marine steel piles. The SEBF-6-1 and SEBF-6-2 form a double-layer epoxy powder coating: the bottom ...
Embodiment 3
[0038] Example 3 SEBF-6-3
[0039] A marine steel pipe pile external anti-corrosion epoxy powder coating SEBF-6-3, its formula is shown in Table 3.
[0040] The formula (percentage by weight) of table 3 coating SEBF-6-3
[0041]
[0042] Use SEBF-6-3 high-strength mechanical properties and anti-ultraviolet (wavelength 250-370nm) aging coating, coated on the coating SEBF-6-1 and SEBF-6-2 to maintain good compatibility and Wholeness. The SEBF-6-3 coating has passed 29 aging test cycles, and the coating has no cracks or blisters. After modified SEBF-6-3 powder coating, the anti-aging performance is more than 2 times higher than that of similar coatings. At the same time, under the load of 50kg, the scratch resistance of the scratch head with a diameter of 2.0mm can reach below 250μm, which is twice as good as that of ordinary scratch-resistant coatings. The coating has good impact and abrasion resistance and is resistant to marine biofouling. The coating is suitable for t...
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