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A kind of preparation method and application of mild reaction type aldehyde and ketone resin

The technology of aldehyde-ketone resin and aldehyde-ketone type is applied in the field of chemical grouting material preparation, which can solve the problems of boiling and detonation, low acetone, etc., and achieve the effects of reducing volatility performance, solving brittleness and simple construction process.

Active Publication Date: 2015-10-28
东莞微积分新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that traditional furfural and acetone diluents react under the alkaline catalyst to release a large amount of heat and the boiling point of acetone is low and the problem of boiling implosion, the object of the present invention is to provide a kind of mild reaction aldehyde and ketone resin and its preparation method

Method used

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  • A kind of preparation method and application of mild reaction type aldehyde and ketone resin
  • A kind of preparation method and application of mild reaction type aldehyde and ketone resin

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Barium hydroxide and MgO-NaOH, Rb 2 O is mixed according to the molar ratio of 1:1:1 to obtain a super-alkaline catalyst, after furfural and methyl ethyl ketone are mixed according to the molar ratio of 2:1, a mixed solution of aldehyde and ketone is obtained; under stirring conditions at 20°C, within 2.5 hours Continuously add the superbasic catalyst to the aldehyde-ketone mixture, and the mass ratio of the superbasic catalyst to the superbasic catalyst is 600:1. Continue to react for 3.5 hours to obtain aldehyde and ketone resin. No implosion phenomenon occurred during the whole reaction process.

[0025] Mix and stir 49.9 parts of epoxy resin E-44, 50 parts of aldehyde and ketone resin, and 0.1 part of aluminate coupling agent DN-211 to obtain component A; mix 83 parts of main curing agent N, N-diethylaminopropylamine, 9 parts of performance control curing agent low-molecular polyamide 651#, 3 parts of curing accelerator triethanolamine, 5 parts of curing accelerat...

Embodiment 2

[0027] Sodium ethoxide and sodium hydroxide, Cs 2 O is mixed according to a molar ratio of 1:1:1.5 to obtain a super-alkali catalyst, and after mixing acetylacetone, furfural and benzaldehyde according to a molar ratio of 5:2:3, a mixed solution of aldehyde and ketone is obtained; at 40° C. under stirring conditions , within 1 hour, continue to add the superbasic catalyst to the aldehyde and ketone mixture, and the mass ratio of the superbasic catalyst to the superbasic catalyst is 20:1. Continue to react for 4 hours to obtain aldehyde and ketone resin. No temperature rise occurred during the entire reaction.

[0028] Mix and stir 18 parts of epoxy resin F-51, 77 parts of aldehyde and ketone resin, and 5 parts of titanate coupling agent CT-56 to obtain component A; mix 77 parts of main curing agent diethylenetriamine and 5 parts of performance control curing Agent modified amine 593#, 11.5 parts of performance control curing agent modified amine 810#, and 6.5 parts of methyl...

Embodiment 3

[0030] Mix calcium hydroxide, CaO, and SrO according to the molar ratio of 2.5:1:0.5 to obtain a super-alkali catalyst, and mix isophorone and glutaraldehyde according to the molar ratio of 1.2:1 to obtain a mixed solution of aldehyde and ketone; at 30 Under the condition of stirring at ° C, within 1 hour, continue to add the superbasic catalyst to the aldehyde and ketone mixture, and the mass ratio of the superbasic catalyst to the superbasic catalyst is 80:1. Continue to react for 3.5 hours to obtain aldehyde and ketone resin. No implosion phenomenon occurred during the whole reaction process.

[0031] 25 parts of epoxy resin E-44, 35 parts of epoxy resin E-51, 39 parts of aldehyde and ketone resin, 0.3 parts of silane coupling agent KH550, 0.5 parts of titanate coupling agent CT-56, 0.2 parts of aluminate The coupling agent GR-AL18 is mixed and stirred to obtain the first component; 10 parts of the main curing agent tetraethylenepentamine, 45 parts of the aromatic amine pe...

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Abstract

The invention discloses a preparation method of mild reaction type aldehyde ketone resin. The mild reaction type aldehyde ketone resin is prepared by adding a quantitative superbase catalyst into mixed liquid of aldehyde and ketone compounds under the condition of stirring at normal temperature, wherein the reaction process is mild and stable, so the defect that the traditional furfuraldehyde acetone system is easy to implode is overcome. The invention also discloses an application of the mild reaction type aldehyde ketone resin to preparation of an aldehyde ketone resin modified epoxy grouting material. The prepared grouting material can completely exert the flexibility of the aldehyde ketone resin, solves the problem that epoxy resin has high brittleness, can further improve excellent mechanical properties, adhesive property, ageing resistance and corrosion resistance of the epoxy resin, and also has the characteristics of low toxicity, environmental friendliness and the like. In addition, according to the preparation method, the aldehyde ketone resin is prepared in advance and has higher viscosity and thixotropism when being used together with fillers, so the construction process is simple and the aldehyde ketone resin can be applied to concrete surface corrosion of basic facilities such as bridges and ports, restoration of cultural relic, water and seepage prevention, reinforcement and strengthening of buildings and the like.

Description

technical field [0001] The invention relates to the technical field of preparation methods of chemical grouting materials, in particular to a preparation method and application of a mild-reaction aldehyde-ketone resin. Background technique [0002] Epoxy grouting material refers to the slurry prepared with epoxy resin as the main agent, adding a certain amount of diluent and curing agent. The material can be injected into the stratum or gaps by pressure feeding equipment to make it diffuse, and then undergo an in-situ chemical reaction at the treated part to achieve gelation or solidification, so that rock soil or concrete can achieve the purpose of reinforcement, seepage prevention or plugging . Epoxy resin is widely used in anti-seepage reinforcement due to its excellent mechanical properties, small curing shrinkage, excellent corrosion resistance, and strong adhesion. However, due to its high viscosity, it cannot achieve the effect of penetration. Add various thinners. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G6/02C08L63/00C08L63/02C08L61/02C08G59/50E04B1/64E04B1/66
Inventor 张广照马春风张国梁
Owner 东莞微积分新材料科技有限公司
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