A kind of concrete template material and preparation method thereof

A technology of concrete formwork and polymerized monomers, which is applied in fiber processing, textiles and papermaking, and can solve problems such as poor flame retardancy, many seams, and narrow format

Active Publication Date: 2020-10-27
陕西天工建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a concrete formwork material and a preparation method thereof. The formwork material overcomes the more or less high cost, heavy weight, narrow format, many joints, inconvenient construction and transportation, and easy construction of traditional formwork materials. Rust, requires anti-corrosion treatment, and high maintenance costs; low strength, not waterproof, easy to mildew and rot, less repeated use, and consumes a lot of green resources, poor weather resistance, insufficient high temperature rigidity, poor flame retardancy technology It has the advantages of low cost, good mechanical properties, high and low temperature resistance, flame retardant and fire resistance, and excellent weather resistance

Method used

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  • A kind of concrete template material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method for concrete formwork material, comprising the steps of:

[0031] ⅠAdd 13.3g of 2,7-dibromo-9,9-difluorofluorene, 10g of Plinberry, 3g of cesium carbonate, and 2g of tetrachlorobenzoquinone to a three-necked flask connected with a water separator, and then add dimethyl 50g of sulfoxide and 30g of toluene, heated the reaction system to 130°C, stirred and reacted for 4 hours under nitrogen protection, removed the water and toluene generated during the reaction through a water separator, and slowly raised the reaction temperature to 140°C after removing all the water. Continue to stir and react for 8 hours. After the reaction finishes, the reaction system is cooled to room temperature and precipitated in water. The precipitated polymer is washed 4 times with dichloromethane, then washed 3 times with isopropanol, and the solvent is removed by rotary evaporation to obtain a polymer based on Fluorine-containing fluorene benzoxazole condensation polymer; ...

Embodiment 2

[0037] A preparation method for concrete formwork material, comprising the steps of:

[0038] ⅠAdd 13.3g of 2,7-dibromo-9,9-difluorofluorene, 10g of Plinberry, 4g of sodium carbonate, and 2.5g of 1,4-naphthoquinone into a three-necked flask connected with a water separator, and then Add 65g of N,N-dimethylformamide and 35g of toluene, heat the reaction system to 132°C, stir the reaction for 4.5 hours under the protection of helium, remove the water and toluene generated during the reaction through a water separator, and remove all the water Slowly raise the reaction temperature to 142°C, continue to stir and react for 8.5 hours, after the reaction, cool the reaction system to room temperature, precipitate in water, wash the precipitated polymer with dichloromethane for 5 times, and then wash with isopropanol for 4 times , and the solvent is removed by rotary evaporation to obtain a polycondensate based on fluorine-containing fluorene benzoxazole;

[0039] ⅡIn a three-neck fla...

Embodiment 3

[0044] A preparation method for concrete formwork material, comprising the steps of:

[0045] ⅠAdd 13.3g of 2,7-dibromo-9,9-difluorofluorene, 10g of Plinberry, 4g of potassium carbonate, and 3g of chloranil to a three-necked flask connected with a water separator, and then add N- 75g of methylpyrrolidone and 40g of toluene, heat the reaction system to 135°C, stir the reaction for 5 hours under the protection of neon gas, remove the water and toluene generated during the reaction through a water separator, and slowly raise the reaction temperature to 145°C after removing all the water ℃, continue to stir the reaction for 9 hours, after the reaction, the reaction system is cooled to room temperature, precipitated in water, the precipitated polymer is washed 5 times with dichloromethane, and then washed 4 times with isopropanol, and then the solvent is removed by rotary evaporation. Obtain a polycondensate based on fluorine-containing fluorene benzoxazole;

[0046] ⅡIn a three-n...

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PUM

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Abstract

The invention provides a preparation method of a concrete mold plate material. The preparation method comprises the following steps: preparing a fluorine-containing fluorene benzoxazole polycondensate, preparing a polymerization monomer, preparing a nano boron fiber modified by the polymerization monomer, and preparing the concrete mold plate material. The invention further discloses the concretemold plate material prepared by using the preparation method of the concrete mold plate material. The preparation method of the concrete mold plate material, which is provided by the invention, is simple and feasible, low in equipment dependency, low in cost and applicable to on-scale production. The prepared concrete mold plate material has the advantages of being low in cost, good in mechanicalproperty, good in high / low temperature resistance and excellent in flame retardancy, fire resistance and weather resistance.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a concrete formwork material and a preparation method thereof. Background technique [0002] Concrete is a kind of building material that uses cement as the gel material, sand and stone as the aggregate, and water in a certain proportion. It has the characteristics of rich raw materials, low price and simple production process. It is widely used in Various civil engineering, mechanical engineering, geothermal engineering, shipbuilding and marine development. The performance of concrete directly affects the quality of the project. In the process of building construction, it is necessary to carry out form work on concrete, which is a necessary measure to ensure the quality and construction safety of concrete works, speed up construction progress and reduce project costs. Therefore, the preparation of concrete formwork materials with excellent performance is the premise...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/00C08F228/02C08F226/06C08F230/08C08F2/48C08F2/44C08K7/06D06M14/00
CPCC08F2/44C08F2/48C08F283/00C08K7/06C08K2201/011D06M14/00C08F228/02C08F226/06C08F230/08
Inventor 不公告发明人
Owner 陕西天工建设有限公司
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