Co-Ni co-doping anti-corrosion glass and preparation and use methods thereof

A corrosion-resistant glass, co-ni technology, applied in the field of corrosion-resistant glass, can solve the problems of coating corrosion, loss of steel protection effect, etc., to achieve the effect of preventing corrosion, low price and stable process

Active Publication Date: 2017-05-31
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the coating itself tends to corrode in concrete, losing its protective effect on steel reinforcement

Method used

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  • Co-Ni co-doping anti-corrosion glass and preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Preparation and sealing of materials

[0030] According to the proportioning of each component of embodiment 1 in table 1, take a certain amount of analytically pure raw material (B 2 o 3 , SiO 2 、Na 2 O, K 2 O. Co 2 o 3 and Ni 2 o 3 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 1100°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with polyvinyl alcohol, fish oil, ethanol and toluene (80%, 2%, 1%, 10%, 7% by weight) to form a slurry, and disperse evenly in a ball mill; tape casting, natural Dry, then cut into the embryo body of the desired shape; place the embryo body on the part to be sealed, heat up in an electric fu...

Embodiment 2

[0031] Embodiment 2: Preparation and sealing of materials

[0032] According to the proportioning of each component of embodiment 2 in table 1, take a certain amount of analytically pure raw material (B 2 o 3 , SiO 2 、Na 2 O, K 2 O. Co 2 o3 and Ni 2 o 3 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it at 3°C / min to 1020°C, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with methylcellulose, polyvinyl alcohol, n-butanol and acetone (82%, 2%, 2%, 8%, 6% by weight) to form a slurry, and disperse evenly in a ball mill; Stretching, drying naturally, and then cutting the embryo body into the desired shape; placing the embryo body on the part to be sealed, heating i...

Embodiment 3

[0033] Embodiment 3: Preparation and sealing of materials

[0034] According to the proportioning of each component of embodiment 3 in table 1, take a certain amount of analytically pure raw material (B 2 o 3 , SiO 2 、Na 2 O, K 2 O. Co 2 o 3 and Ni 2 o 3 ), use a planetary ball mill for 24 hours to mix evenly; then put the powder into a platinum crucible, place it in the air atmosphere of a box-type resistance furnace, heat it to 960°C at 3°C / min, and keep it warm for 1 hour; then, take out the crucible, Pour the melt into deionized water for rapid cooling, and dry to obtain fragments of glass melt; grind and pass through a 100-mesh sieve to obtain glass powder. Mix glass powder with epoxy resin, polyacrylamide, isopropanol and toluene (84%, 1.5%, 0.5%, 9%, 5% by weight) to form a slurry, and disperse evenly in a ball mill; casting Shaping, drying naturally, and then cutting into the embryo body of the desired shape; place the embryo body on the part to be sealed, hea...

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PUM

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Abstract

The invention discloses Co-Ni co-doping anti-corrosion glass and preparation and use methods thereof. The Co-Ni co-doping anti-corrosion glass is prepared from the following raw materials including B2O3, SiO2, Na2O, K2O, Co2O3 and Ni2O3 according to a mol ratio of (0 to 15):(20 to 40):(10 to 30):(10 to 30):(5 to 25):(5 to 25). High-concentration Na2O and K2O are added; the compatibility of the glass and the concrete is improved; the heat expansion coefficient of the glass is increased; the sealing and connecting temperature of the glass is obviously reduced; the SiO2 is used as main ingredients for making a resistant net; the anti-corrosion performance of the glass is improved; the SiO2 takes a reaction with CaO in concrete to generate a compact CaSiO3 layer on the surface of a steel bar, so that the corrosion of the steel bar is inhibited; high-concentration Co2O3 in the glass and Ni2O3 generate solid solutions of spinel structures; the tight lap joint is realized with an oxide layer on the surface of the steel bar; the adhesion force of the glass and the steel bar is obviously enhanced. The Co-Ni co-doping anti-corrosion glass has the advantages that the raw material price is low; the process is stable; the conditions of practicability and industrialization are reached.

Description

technical field [0001] The invention belongs to the field of glass coatings for metal components, and in particular relates to a Co-Ni co-doped corrosion-resistant glass and a preparation and use method thereof. Background technique [0002] Reinforced concrete structure is a composite material composed of steel bars and concrete with completely different mechanical properties. It effectively utilizes the tensile properties of steel bars and the compressive properties of concrete, and is widely used in actual construction. However, the corrosion of steel bars in reinforced concrete structures will seriously affect the mechanical properties of steel bars, reduce the bonding force between steel bars and concrete, cause cracking and cracking of concrete, and bring serious safety hazards. At present, researchers at home and abroad mainly reduce the electrochemical corrosion of steel bars in concrete by improving the compactness of reinforced concrete and concrete. Recent studie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C03C4/20C03C3/064
Inventor 张腾彭兵
Owner FUZHOU UNIV
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