A kind of cationic photocuring anticorrosion coating
A technology of anti-corrosion coatings and cations, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of loss of coating film comprehensive performance and anti-corrosion performance, and achieve strong corrosion resistance and good anti-corrosion effect
Inactive Publication Date: 2016-02-17
SNTO TECH GRP
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Problems solved by technology
However, the introduction of small molecule active diluents will cause a great loss to the overall performance of the coating film, especially the anti-corrosion performance, while improving the viscosity and reaction speed of the system.
Method used
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Embodiment 1
[0025]
Embodiment 2
[0027]
Embodiment 3
[0029]
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The invention discloses a cation light cured anti-corrosive coating. The coating is prepared from (by wt%) vinyl ether carbamate 10-80, epoxy resin 4-30, cation photoinitiator 0.5-5, assistant 0.1-3, and solvent in balance. By adopting reaction of polyisocyanate and multi-functional vinyl ether to synthesize vinyl ether carbamate with high reactivity, which is used as reactive diluent of epoxy resin curing, system viscosity can be reduced effectively, and light curing reaction speed can be fastened. The inventive coating has low viscosity and good adhesive force, and is especially suitable for endowing material surface with good anti-corrosive property under thin-coating condition.
Description
technical field [0001] The invention belongs to the technical field of ultraviolet light curing coatings, in particular to a cationic light curing anticorrosion coating. Background technique [0002] Ultraviolet curing coatings (UV coatings) use the energy of ultraviolet light to initiate polymerization and cross-linking reactions between low-molecular prepolymers or oligomers in coatings and monomer molecules as reactive diluents to obtain hardened paint films. A coating with the characteristics of fast curing, low energy consumption, no environmental pollution, and excellent coating performance. The cationic light-curing system plays an important role in UV-curable coatings. It has the advantages of small volume shrinkage during curing, strong adhesion to the substrate, no polymerization inhibition by oxygen during the light-curing process, and difficult termination of the curing reaction. It is suitable for photo-curing of films. Solidification and other advantages. The...
Claims
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IPC IPC(8): C09D163/00C09D163/02C09D7/12C09D5/08
Inventor 梁勇
Owner SNTO TECH GRP