High-strength calcium silicate board and preparation process thereof

A calcium silicate board, high-strength technology, applied in the field of calcium silicate board, can solve problems such as irregular distribution of fibers, difficult orientation of the board, and affecting the strength of the board, so as to improve the steric hindrance, expand the field of use, The effect of increasing the strength of the plate

Inactive Publication Date: 2021-03-30
广东雄塑环保板业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For fiber-reinforced composite materials, when the force direction is parallel to the fiber direction, due to the existence of fibers, the stress value it bears will exceed the ultimate stress value of the matrix. This phenomenon is called fiber reinforcement effect, which can greatly improve The strength of the material, but the processing of the fiber raw materials in the preparation process of the calcium silicate board is mostly mixed to form a slurry to make a billet, so the fibers in the board often show irregular distribution, and due to the different lengths, sizes and gravity of the fibers The impact of it makes it settle, making it difficult to align in the plate, which affects the use strength of the plate

Method used

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  • High-strength calcium silicate board and preparation process thereof

Examples

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Effect test

Embodiment 1

[0027] A high-strength calcium silicate board is made of the following raw materials: 9kg of phosphogypsum, 13.5kg of diatomite, 24kg of quartz sand, 9kg of calcium carbide mud, 13kg of lime, and 8kg of iron-doped wood fiber.

[0028] The preparation method of described iron-doped wood fiber comprises the following steps:

[0029] (1) Using a DC arc plasma method, using a tungsten rod as a cathode, an iron block as an anode, 0.02MPa argon and 0.02MPa hydrogen as a reaction gas, and a DC arc plasma as a heat source to evaporate the iron block to obtain iron nanoparticles;

[0030] (2) Add the above-mentioned iron nanoparticles to 10% silane coupling agent KH550 ethanol solution, control m(Fe):m(KH550)=15:1, adjust the pH to 5.0, and then add iron nanoparticles equivalent to it The wood fiber with a length of 1.0-2.5 mm which is 300 times the mass of the particle is stirred at 60° C. for 60 minutes, centrifuged and washed until neutral after completion, and dried to obtain the i...

Embodiment 2

[0036] A high-strength calcium silicate board made of the following raw materials: 8kg of phosphogypsum, 11kg of diatomaceous earth, 22kg of quartz sand, 8kg of calcium carbide mud, 10kg of lime, and 6kg of iron-doped wood fiber.

[0037] The preparation method of described iron-doped wood fiber comprises the following steps:

[0038] (1) Using a DC arc plasma method, using a tungsten rod as a cathode, an iron block as an anode, 0.02MPa argon and 0.02MPa hydrogen as a reaction gas, and a DC arc plasma as a heat source to evaporate the iron block to obtain iron nanoparticles;

[0039] (2) Add the above-mentioned iron nanoparticles to 10% silane coupling agent KH550 ethanol solution, control m(Fe):m(KH550)=15:1, adjust the pH to 4.5, and then add iron nanoparticles equivalent to it Wooden fibers with a length of 1.0-2.5mm that are 200 times the mass of the particles are stirred at 55°C for 80 minutes, centrifuged and washed to neutrality after completion, and dried to obtain iro...

Embodiment 3

[0045] A high-strength calcium silicate board is made of the following raw materials: 10kg of phosphogypsum, 15kg of diatomaceous earth, 26kg of quartz sand, 10kg of calcium carbide mud, 16kg of lime, and 10kg of iron-doped wood fiber.

[0046] The preparation method of described iron-doped wood fiber comprises the following steps:

[0047] (1) Using a DC arc plasma method, using a tungsten rod as a cathode, an iron block as an anode, 0.02MPa argon and 0.02MPa hydrogen as a reaction gas, and a DC arc plasma as a heat source to evaporate the iron block to obtain iron nanoparticles;

[0048](2) Add the above-mentioned iron nanoparticles to 10% silane coupling agent KH550 ethanol solution, control m(Fe):m(KH550)=15:1, adjust the pH to 5.5, and then add iron nanoparticles equivalent to it The wood fiber with a length of 1.0-2.5 mm which is 400 times the mass of the particle is stirred at 65° C. for 40 minutes, centrifuged and washed until neutral after completion, and dried to obt...

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Abstract

The invention discloses a high-strength calcium silicate board and a preparation process thereof. The high-strength calcium silicate board is prepared from the following raw materials in parts by weight: 8-10 parts of ardealite, 11-15 parts of diatomite, 22-26 parts of quartz sand, 8-10 parts of calcium carbide slurry, 10-16 parts of lime and 6-10 parts of iron-doped wood fibers. According to thecalcium silicate board, fibers in the board are directionally distributed, so that the direction coefficient of the fibers is greatly increased, the stress value borne by the board is greatly increased, the strength of the board is improved, and the use field of the calcium silicate board is greatly expanded.

Description

technical field [0001] The invention belongs to the technical field of calcium silicate boards, and in particular relates to a high-strength calcium silicate board and a preparation process thereof. Background technique [0002] Calcium silicate board is a new type of environmentally friendly building material. It is based on high-quality and high-standard cement, reinforced with natural fibers, and processed by special techniques such as production process molding and pressure. It has superior fire resistance, moisture resistance, and service life. The advantages of extra length are widely used in fields such as ceiling ceilings, partition walls, and home decoration. [0003] For fiber-reinforced composite materials, when the force direction is parallel to the fiber direction, due to the existence of fibers, the stress value it bears will exceed the ultimate stress value of the matrix. This phenomenon is called fiber reinforcement effect, which can greatly improve The stre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B40/00C04B40/02C04B111/20
CPCC04B28/143C04B40/0067C04B40/0007C04B40/0245C04B2201/50C04B2201/20C04B2111/20C04B14/08C04B14/06C04B18/0418C04B22/064C04B18/26C04B14/34C04B24/42C04B24/026
Inventor 黄淦雄
Owner 广东雄塑环保板业有限公司
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