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Organic polymer material, Portland cement containing same and preparation method of Portland cement

A polymer material, Portland cement technology, used in chemical instruments and methods, drilling compositions, etc., can solve the problems of poor stability, temperature resistance and anti-corrosion performance, and achieve good toughness and anti-corrosion performance. , Improve rheology and thickening properties, the effect of small particle size

Active Publication Date: 2017-03-08
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The latex is dispersed among the cement particles, which can make the cement stone have better plasticity, but there are common problems in the cementing process-poor stability, temperature resistance and anti-corrosion performance

Method used

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  • Organic polymer material, Portland cement containing same and preparation method of Portland cement
  • Organic polymer material, Portland cement containing same and preparation method of Portland cement
  • Organic polymer material, Portland cement containing same and preparation method of Portland cement

Examples

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Embodiment 1-5

[0031] 1. The preparation method of water-based epoxy resin emulsion is as follows:

[0032] (1) Preparation of epoxy resin emulsifier: In the reactor, add 200g epoxy resin and 200g polyethylene glycol PEG-1000, stir and react at a constant temperature of 80℃~100℃ for 2h to obtain a transparent solution, then stir down Continue to add 400g of diethanolamine, continue to react at a constant temperature for 2h, after the reaction, a yellow epoxy emulsifier is obtained;

[0033] (2) Preparation of water-based epoxy emulsion: Mix 40g of the epoxy resin emulsifier prepared above, 490g epoxy resin and 50g organic solvent according to the stoichiometric ratio. The temperature is raised to 40℃~60℃ and stirred at high speed. Slowly add 420g of deionized water, and continue to stir for 30min-60min after the reverse rotation occurs to obtain a milky white non-ionic aqueous epoxy emulsion.

[0034] The aqueous epoxy resin emulsion obtained above has a solid content of 53%, a viscosity of 600 mP...

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Abstract

The invention relates to the technical field of cement preparation and particularly relates to an organic polymer material, Portland cement containing the same and a preparation method of the Portland cement. The organic polymer material is prepared from an aqueous epoxy resin emulsion, a curing agent and a stabilizer, wherein the weight ratio of the aqueous epoxy resin emulsion to the curing agent is (3-10):(1-5), and the weight ratio of the aqueous epoxy resin emulsion to the stabilizer is (3-10):(0.5-1.5). The organic polymer material can not only protect cement slurry under the well cementing conditions of high temperature and high mineralization degree, but also improve the compressive strength and toughness of cement stone and also improve the corrosion resistance of the cement stone.

Description

Technical field [0001] The invention belongs to the technical field of cement preparation, and specifically relates to an organic polymer material and Portland cement containing the material and a preparation method thereof. Background technique [0002] Cement slurry and cement concrete have been used for 170 years, and they are currently one of the most important building materials used in the world. Due to its high compressive strength, better durability, strong adaptability and economy, the application of Portland cement as a cementing material is increasing. But it also has its own shortcomings, such as low tensile strength, low flexural strength, high brittleness, low flexibility, and low chemical resistance. Therefore, a series of problems such as corrosion and spalling of cement stone tend to occur in many cement stone structures that have been experienced for many years. Therefore, people have been looking for ways to improve Portland cement for a long time, such as im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/32C04B24/16C04B28/04C08F220/58C08F220/06C08F222/02C08G81/00C09K8/467C04B111/20
CPCC04B24/163C04B24/32C04B28/04C04B40/0039C04B2111/20C04B2201/50C08F220/58C08F220/585C08G81/00C09K8/467C04B24/281C04B24/023C04B24/121C04B24/287C04B2103/50C08F220/06C08F222/02
Inventor 谭伟民倪维良胡秀东薛鹏郁飞
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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