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Solvent-free high-leveling durable epoxy resin corrosion-resistant coating and application method

An epoxy resin and anti-corrosion coating technology, applied in anti-corrosion coatings, coatings, devices for coating liquid on surfaces, etc., can solve the problems of unsatisfactory anti-corrosion performance, difficult construction, poor smoothness, etc. The method is simple and easy to implement, and the effect of improving waterproofness and stable performance

Pending Publication Date: 2019-12-03
林芬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems that the existing solvent-free epoxy resin coatings are brittle, viscous, poor in smoothness, difficult to construct, and the anti-corrosion performance cannot meet the requirements, the present invention proposes a solvent-free epoxy resin anti-corrosion coating with high leveling durability. A solvent-free high-leveling durable epoxy resin anti-corrosion coating and its construction method are proposed, which can greatly improve the waterproofness, anti-corrosion and bonding firmness of the coating, and are suitable for medium environments such as corrosive liquids

Method used

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  • Solvent-free high-leveling durable epoxy resin corrosion-resistant coating and application method

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Proportioning according to the ratio of substances Solvent-free high-leveling durability epoxy resin anticorrosion coating: A component is composed of liquid epoxy resin E 51 85 parts by weight, diluent glycidyl methacrylate 13 parts by weight, smooth function additive 8 parts by weight Parts by weight, 35 parts by weight of filler mica powder, 0.5 parts by weight of a toughening agent with a particle size of glass microspheres less than 20 microns by soaking in water glass, and 5 parts by weight of azobisisobutyronitrile; the smooth function additive It is a compound obtained by grinding 68 parts by weight of silicone powder, 34 parts by weight of aluminum powder and 15 parts by weight of ethylene dimethacrylate.

[0031]Component B is 23 parts by weight of a composite curing agent obtained by loading 38% of an acid anhydride curing agent methyl hexahydrophthalic anhydride on flake molybdenum disulfide.

[0032] The construction method of the solvent-free high-leveling...

Embodiment 2

[0034] According to the ratio of each material, solvent-free high leveling durability epoxy resin anticorrosion coating: component A consists of 100 parts by weight of liquid epoxy resin E44, 10 parts by weight of diluent tetrahydrophthalate diglycidyl ester, Smooth functional additive is 10 parts by weight, filler mica powder is 45 parts by weight, 3 parts by weight of toughening agent that the glass microsphere particle diameter is less than 20 microns is processed by water glass soaking, and azobisisobutyronitrile is 2 parts by weight; The smooth function additive is a compound obtained by grinding 75 parts by weight of silicone powder, 32 parts by weight of aluminum powder and 18 parts by weight of ethylene dimethacrylate.

[0035] Component B is 18 parts by weight of a composite curing agent obtained by loading polyamide curing agent 650 with a loading amount of 30% between the sheet-like molybdenum disulfide layers.

[0036] The construction method of the solvent-free hi...

Embodiment 3

[0038] According to the ratio of each material, solvent-free high leveling durability epoxy resin anticorrosion coating: A component is composed of liquid epoxy resin, E 42 is 95 parts by weight, diluent diglycidyl phthalate is 14 parts by weight, smooth The functional additive is 7 parts by weight, 25 parts by weight of filler mica powder, 2.5 parts by weight of a toughening agent having a particle size of glass microspheres less than 20 microns by soaking in water glass, and 1 part by weight of azobisisobutyronitrile; The slip function additive is a compound obtained by grinding 72 parts by weight of silicone powder, 45 parts by weight of aluminum powder and 25 parts by weight of ethylene dimethacrylate.

[0039] Component B is 25 parts by weight of a composite curing agent obtained by loading 38% of the amine curing agent polyamide curing agent 650 between the sheet-like molybdenum disulfide layers.

[0040] The construction method of the solvent-free high-leveling and dura...

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Abstract

The invention discloses a solvent-free high-leveling durable epoxy resin corrosion-resistant coating which comprises a component A and a component B, wherein the component A is prepared from a liquidus epoxy resin, a diluent, a smoothing function additive, a filler, a toughening agent and an initiator through mixing and stirring; the component B is a flaky composite curing agent; the smoothing function additive is a composition of silicone powder, aluminum powder and ethylidene dimethyl acrylate through grinding; and the flaky composite curing agent is a composite curing agent which is prepared by supporting a curing agent on a flaky molybdenum disulfide layer. The coating disclosed by the invention is good in application performance, the water resistance, the corrosion resistance and thebonding solidness of a large coating layer can be improved, the problems that a conventional solvent-free epoxy resin coating is crispy and viscous in character, poor in smoothness and not easy to apply can be overcome, and the coating can be widely applied to water and corrosion resistance of fields such as reservoir dam engineering, subway engineering, tunneling and city underground large diameter drainage pipes.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to a solvent-free high-leveling and durable epoxy resin anticorrosion coating and a construction method. Background technique [0002] With the rapid development of construction engineering, there are more and more concrete structure construction projects. For example, reservoir dam projects, subways, tunnels, urban underground pipe networks, sewage treatment tank projects, harbor wharf projects, urban viaducts, underground parking garages, etc. require a large amount of waterproof and anti-corrosion coating treatment. Ordinary water-based coatings such as acrylic coatings have poor water resistance and poor durability; currently, epoxy resin coatings and polyurethane coatings are widely used. Since polyurethane coatings have poor adhesion to concrete substrates, epoxy resins are the best choice. [0003] Epoxy resin is a polymer material with a linear structure, with an aver...

Claims

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Application Information

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IPC IPC(8): C09D4/06C09D4/02C09D7/61C09D7/62C09D7/63C09D7/65C09D5/10B05D7/24B05D5/00
CPCB05D5/00B05D7/24B05D2504/00C09D4/06C09D5/103C09D7/61C09D7/62C09D7/63C09D7/65
Inventor 林芬
Owner 林芬