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High-resistance insulating cement

A technology of insulating cement and high resistance, applied in the field of building materials industry, can solve the problems of cumbersome process and narrow application range, and achieve the effect of wide sources, simple preparation process and low price

Active Publication Date: 2011-09-07
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in the above-mentioned cement components, the active powders that need to be added are different. Usually, powders such as fly ash and slag need to be added, which makes the actual production process of the product relatively cumbersome and the application range of the product is relatively narrow.

Method used

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  • High-resistance insulating cement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare high-resistance cement according to the following mass ratio: measure 12 parts (mass parts, the same below) AB-EP-51 epoxy resin of Zhejiang Anbang New Material Development Co., Ltd., 9 parts of Zhejiang Anbang New Material Development Co., Ltd. After mixing AB-HGF curing agent and 10 parts of water evenly, let it stand for 30 minutes, then add 50 parts of 325 cement from Hangzhou Yunfeng Cement Co., Ltd. and 25 parts of pyrophyllite powder (particle size 700 mesh) in Qingtian, Zhejiang, and continue to stir and mix evenly , and then injection molded, placed at room temperature for 24 hours, solidified and dried, and demoulded. The volume resistivity and compressive strength were measured after the samples were placed indoors for 7 days and 28 days, respectively.

[0037] The performance test result of the above-mentioned high-resistance cement is: the volume resistivity in 28 days is 21.08×10 8 Ω·cm, the 7-day compressive strength is 14.09MPa, and the 28-day c...

Embodiment 2

[0039] Prepare high-resistance cement according to the following mass ratio: Measure 8 parts of AB-EP-51 epoxy resin of Zhejiang Anbang New Material Development Co., Ltd., 6 parts of AB-HGF curing agent of Zhejiang Anbang New Material Development Co., Ltd. and 28 parts After mixing the water evenly, let it stand for 30 minutes, then add 65 parts of 325 cement from Hangzhou Yunfeng Cement Co., Ltd. and 35 parts of pyrophyllite powder in Qingtian, Zhejiang (particle size 700 mesh), continue to stir and mix evenly, and then injection molding, at room temperature Place it under the ground for 24 hours, and demould after solidification and drying. The volume resistivity and compressive strength were measured after the samples were placed indoors for 7 days and 28 days, respectively.

[0040] The performance test result of the above-mentioned high-resistance cement is: the volume resistivity in 28 days is 35.14×10 8 Ω·cm, the 7-day compressive strength is 13.11MPa, and the 28-day c...

Embodiment 3

[0042] Prepare high-resistance cement according to the following mass ratio: Measure 8 parts of AB-EP-51 epoxy resin of Zhejiang Anbang New Material Development Co., Ltd., 6 parts of AB-HGF curing agent of Zhejiang Anbang New Material Development Co., Ltd. and 28 parts After mixing the water evenly, let it stand for 30 minutes, then add 75 parts of 325 cement from Hangzhou Yunfeng Cement Co., Ltd. and 25 parts of pyrophyllite powder in Qingtian, Zhejiang (particle size 700 mesh), continue to stir and mix evenly, and then injection molding, at room temperature Place it under the ground for 24 hours, and demould after solidification and drying. The volume resistivity and compressive strength were measured after the samples were placed indoors for 7 days and 28 days, respectively.

[0043] The performance test result of the above-mentioned high-resistance cement is: the volume resistivity of 28 days is 51.27×10 8 Ω·cm, the 7-day compressive strength is 10.73MPa, and the 28-day c...

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Abstract

The invention discloses high-resistance insulating cement which is prepared from cement, pyrophyllite powder, water, waterborne epoxy resins and waterborne epoxy resin curing agents, wherein the mass ratio of cement to pyrophyllite powder is (50 to 80): (15 to 50); the total mass of water, waterborne epoxy resins and waterborne epoxy resin curing agents accounts for 30% to 45% of the total mass of cement and pyrophyllite powder; the ratio of the mass of water to the total mass of waterborne epoxy resins and waterborne epoxy resin curing agents is (0.4 to 8): 1; and the mass ratio of waterborne epoxy resins to waterborne epoxy resin curing agents is 4: (3 to 1). Compared with the sample of the existing pure cement, the volume resistivity and the compressive strength of the high-resistance insulating cement provided by the invention are both greatly improved.

Description

(1) Technical field [0001] The invention relates to a high-resistance insulating cement, which belongs to the technical field of building material industry. (2) Background technology [0002] Traditional cement-based composite materials are mainly used for building load-bearing materials, and the properties used are basically mechanical properties. However, with the progress of society, modern buildings pose new challenges to cement-based composite materials, requiring cement-based composite materials not only To have the basic load-bearing function, it should also have certain specific functions in terms of sound, light, electricity, magnetism, heat, etc., in order to meet the needs of multi-functional and smart devices. [0003] Ordinary cement-based composites are neither insulators nor good conductors, they are between insulators and good conductors. However, cement-based composites usually have good insulation in a dry state and have extremely high resistivity, but with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/345
CPCC04B28/04
Inventor 盛嘉伟龙辰严俊张俭
Owner ZHEJIANG UNIV OF TECH