Inorganic bonding agent and manufacturing method thereof

A technology of inorganic adhesive and manufacturing method, applied in the directions of inorganic adhesive, polymer adhesive additive, non-polymer adhesive additive, etc., can solve the problems of poor water resistance and poor stability, and improve the solid content , The effect of improving permeability and shortening curing time

Inactive Publication Date: 2017-09-12
ZHEJIANG TRANSFER PAINT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high modulus potassium silicate used by NASA at that time had the disadvantages of poor stability and poor water resistance.

Method used

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  • Inorganic bonding agent and manufacturing method thereof
  • Inorganic bonding agent and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A kind of manufacturing method of inorganic binder, 6.0g potassium hydroxide is added to 100g of nano-silica sol of mass concentration 25% at 60 ℃, continue ultrasonic stirring until the difference between pH and stable pH is less than 0.2, the modulus of the obtained silicate solution is 8.0. The difference between the pH and the stable pH in this embodiment is less than 0.2 means that the pH of the aqueous phase increases after potassium hydroxide is added and dissolved, and an equilibrium pH value will be obtained when the hydroxide radical hydrolysis / hydration reaction reaches equilibrium. Under ultrasonic stirring, as the hydrolysis / hydration continues, the pH gradually drops to a stable pH value. When the difference between the equilibrium pH value and the stable pH value is less than 0.2, the pH value is considered to be stable.

[0044] Slowly add 100g of kaolin and 50g of alkali-free glass fiber powder to the silicate solution at a temperature of 40°C. After ul...

Embodiment 2

[0047] A kind of manufacture method of inorganic binder, add 4.4g potassium hydroxide and 1.0g lithium hydroxide to 100g of nano-silica sol of mass concentration 20% at 50 ℃, continue ultrasonic stirring until the difference between pH and stable pH is less than 0.2, the obtained The silicate solution modulus is 5.5.

[0048] Slowly add 2 g of potassium methyl silicate dropwise to the silicate solution at 40° C., add thickener and defoamer, and continue ultrasonic stirring for 30 minutes until the solution is homogeneous and transparent.

[0049] Mix the modified silicate solution with 500-mesh spherical zinc powder at a mass ratio of 1:3, or mix with 300-mesh spherical aluminum powder at a mass ratio of 1:1.5, then spray it on the tinplate plate, and test the adhesion of the coating after curing It is grade 1, and the surface water contact angle is greater than 90°.

[0050] The obtained adhesive layer can be used as a zinc-rich or aluminum-rich anti-corrosion coating, and t...

Embodiment 3

[0052] A kind of manufacture method of inorganic binder, add 11.9g potassium hydroxide to 100g nano-silica sol of mass concentration 25% at 50 ℃, continue ultrasonic stirring until the difference between pH and stable pH is less than 0.2, the modulus of the obtained silicate solution is 4.0.

[0053] Slowly add 20g of activated alumina and 100g of superfine quartz powder to the silicate solution at 40°C, ultrasonically disperse and grind for 30 minutes, then add thickener and defoamer.

[0054] The obtained inorganic binder can be used as a floor coating, and the surface hardness reaches Mohs 7 after being cured by adding iron oxide pigments.

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Abstract

The invention belongs to the technical field of a bonding agent, and relates to an inorganic bonding agent and a manufacturing method thereof. According to the manufacturing method, alkali metal hydroxides are added into nanometer silica sol; the continuous ultrasonic stirring is performed until the pH is stable; a silicate solution is obtained; coagulators, thickening agents, defoaming agents and dispersing agents are added into the silicate solution; high-shearing mixing and reaction are performed to obtain the inorganic bonding agent. The silicon sol is used as raw materials; alkali metal is added for improving the seepage performance and shortening the curing time; zinc-containing or aluminum-containing inorganic materials are added for generating meta-zincate or meta-aluminate, so that the characteristic of water re-dissolution avoidance after the water loss curing is realized; inorganic filling materials can be added for improving the solid content.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and relates to an inorganic adhesive and a manufacturing method thereof. Background technique [0002] As we all know, most of the adhesives are powder, solution or emulsion of organic polymers, which form high-strength films by hot melting, polymerization, demulsification and other methods. Coatings can be thought of as one-sided adhesives, in which the film-forming substance acts as a binder, binding pigments and other ingredients to the surface of the substrate for protection and aesthetics. [0003] However, most organic adhesives contain VOCs (volatile organic compounds) such as formaldehyde, which not only cause harm to the health of construction workers and users, but also aggravate the greenhouse effect. [0004] For the sake of health and environmental protection, there is an urgent need for inorganic adhesives with excellent performance to replace traditional organic adhesives, espec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/10C09D7/12C03C27/10C03C27/00C09J1/02C09J11/04C09J11/08
CPCC03C27/00C03C27/10C09D1/04C09D5/103C09D5/106C09J1/02C09J11/04C09J11/08
Inventor 方黎锋
Owner ZHEJIANG TRANSFER PAINT CO LTD
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