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Latent active filler composition, solvent-free high-temperature-resistant permeation-resistant liquid polymer coating material, coating and preparation method thereof

A technology of active fillers and coating materials, applied in coatings, anti-corrosion coatings, epoxy resin coatings, etc., can solve the problems of inability to meet the application requirements of heavy corrosion coatings, and achieve the effect of high permeability resistance and high Tg value

Active Publication Date: 2021-04-16
大庆庆鲁朗润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The glass transition temperature of ordinary solvent-free liquid coatings is 85-90°C. According to the calculation that the operating temperature is 10-15°C lower than the glass transition temperature, ordinary solvent-free polymer coating materials can only be used at temperatures lower than 70-75°C. It can not meet the application requirements of heavy corrosion coating

Method used

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  • Latent active filler composition, solvent-free high-temperature-resistant permeation-resistant liquid polymer coating material, coating and preparation method thereof
  • Latent active filler composition, solvent-free high-temperature-resistant permeation-resistant liquid polymer coating material, coating and preparation method thereof
  • Latent active filler composition, solvent-free high-temperature-resistant permeation-resistant liquid polymer coating material, coating and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-3

[0179] A kind of latent active filler composition that the embodiment of the present invention 1-3 provides: with solid epoxy resin composition E G The main resin raw materials, by mass percentage, include the raw material components shown in Table 1.

[0180] The raw material composition (by mass percentage) of latent active filler composition in the embodiment 1-3 of table 1

[0181] composition Example 1 Example 2 Example 3 Solid Epoxy Composition E G

67％ 63％ 65％ Modified phenolic curing agent Amanda 879X 12％ 12％ 11％ 2-Methylimidazole Accelerator 0.30％ 0.2％ 0.3％ Leveling agent (silicone acrylic) 1.10％ 1.5％ 1.2％ Loose flow dispersant (fumed silica) 0.29％ 0.39％ 0.28％ Degasser (benzoin) 0.50％ 0.5％ 0.5％ Graphene 0.01％ 0.01％ 0.02％ Silicon carbide 10％ 12％ 11％ Mica powder 5％ 6％ 6％ Porous powder quartz 3％ 3％ 3.5％ Gold stone titanium dioxide 0.80％ 1.4％ 1.2％

[0182] Wherei...

Embodiment 4-6

[0193] A kind of solvent-free anti-high-temperature anti-penetration liquid polymer coating material provided by the present embodiment 4-6 is a composite coating material, including a primer coating material and a surface coating material; the primer coating material is composed of A D , B D Composition of three components, chopped fiber composition, surface coating material A M and B M Composed of two components. The composite coating material according to A D , B D , chopped fiber composition, A M and B M The five components are individually packaged. Wherein, embodiment 4 adopts the latent active filler composition prepared in embodiment 1, embodiment 5 adopts the latent active filler composition prepared in embodiment 2, embodiment 6 adopts the latent active filler composition prepared in embodiment 3, Add it to Base Coat Material A D and top coat material AM middle. Detailed A D , B D , chopped fiber composition, A M and B M See Table 3-7.

[0194] Table 3 ...

Embodiment 7-9

[0219] Present embodiment 7-9 prepares coating according to the prescription of the coating material in embodiment 4-6, concrete steps are as follows:

[0220] (1)A D Preparation of components:

[0221] (A) first liquid epoxy resin composition ED Y According to the ratio in Table 3, pre-mix in the reaction kettle at 120 degrees for 0.5-1h, discharge and cool to room temperature for use.

[0222] (B) According to the proportioning in Table 2, the liquid epoxy resin composition ED mixed in the above step (1) Y Add a platform type high and low speed disperser, and add to the resin composition ED under the stirring state at a low speed of 100-200r / min. Y Add active diluent, blend, then add latent active filler composition, flake filler, dispersant, defoamer to disperse for 1 hour; then add leveling agent, disperse at high speed of 700-900r / min for 0.5 hour to disperse evenly ; Then the horizontal sand mill grinds to a fineness of 40-60 μm, samples are detected every 10 minutes...

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Abstract

The invention discloses a latent active filler composition, a solvent-free high-temperature-resistant permeation-resistant liquid polymer coating material, a coating and a preparation method thereof. The latent active filler composition takes a solid epoxy resin composition EG as a main raw material and comprises the following components in percentage by mass: 60%-70% of the solid epoxy resin composition, 10%-13% of a modified phenolic curing agent, 0%-1.5% of pigments and fillers and 20.01%-26% of other aids, the latent active filler composition is added into the formula of the coating material and used as a latent active powder filler at normal temperature, and when the temperature of a coating using working condition exceeds 100 DEG C, the latent active filler begins to slowly react and crosslink and forms a multi-layer reticular three-dimensional composite structure with a liquid normal-temperature cured coating; the glass transition temperature and crosslinking density of the whole coating are greatly improved, and the purpose of high temperature resistance is achieved through latent secondary reaction. The coating material can be used for a long time in an acid-base-salt medium at the temperature of less than or equal to 130 DEG C.

Description

technical field [0001] The invention belongs to the field of heavy-duty anti-corrosion solvent-free liquid coating materials, and in particular relates to a solvent-free, high-temperature, and penetration-resistant liquid polymer coating material and a preparation method thereof. Background technique [0002] Heavy-duty anti-corrosion coatings are a type of anti-corrosion coatings that can be applied in relatively harsh corrosive environments and have a longer protection period than conventional anti-corrosion coatings. In the heavy-duty anti-corrosion coating, the performance of the coating is the key, and it is also the focus of the research work. The necessary conditions for the heavy-duty anti-corrosion coating material are the coating's high temperature resistance, high resistance to medium penetration, high mechanical strength and its relationship with Substrate solid bond strength. Among them, the medium penetration resistance of the coating directly reflects the che...

Claims

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Application Information

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IPC IPC(8): C09D5/08C09D7/65C09D7/61C09D163/00C09D7/63
Inventor 吴希革
Owner 大庆庆鲁朗润科技有限公司
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