High-adhesion sealant and preparation method thereof

A glass glue and high-viscosity technology, applied in the direction of polymer adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of easy falling off and low adhesion of glass glue, and achieve safety Good, improved adhesion, cheap price

Inactive Publication Date: 2018-08-17
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-adhesive glass glue and a preparation method thereof, whi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 - the preparation method of high adhesion glass glue

[0020] It uses the following raw materials:

[0021] Polyacrylate emulsion 100kg, potassium feldspar 41kg, supersaturated urea solution 30kg, polyvinyl alcohol 5kg, silicone defoamer 2kg, starch 10kg, water 100kg;

[0022] The preparation method is as follows: first, mix polyacrylate emulsion, potassium feldspar, supersaturated urea solution and water, and let stand for 30 minutes; then, heat to 80°C, and stir at constant temperature for 30 minutes; finally, cool down to 40°C, Add polyvinyl alcohol, silicone defoamer, starch, and stir at constant temperature for 30 minutes.

[0023] Wherein, the particle gradation of the potassium feldspar is:

[0024] 150 mesh to 180 mesh: 25%;

[0025] 200 mesh to 250 mesh: 50%;

[0026] More than 300 mesh: ≤10%.

[0027] Peel strength test: The finished product prepared in this example is tested according to "GB / T2790 Adhesive 180-degree peel strength test, flex...

Embodiment 2

[0035] Embodiment 2——Preparation method of high-adhesion glass glue

[0036] It uses the following raw materials:

[0037] Polyacrylate emulsion 200kg, potassium feldspar 20kg, supersaturated urea solution 19kg, polyvinyl alcohol 6kg, silicone defoamer 1kg, starch 2kg, water 160kg;

[0038] The preparation method is as follows: first, mix polyacrylate emulsion, potassium feldspar, supersaturated urea solution and water, and let it stand for 60 minutes; then, heat to 95°C, and stir at constant temperature for 15 minutes; finally, cool down to 50°C, Add polyvinyl alcohol, silicone defoamer, starch, and stir at constant temperature for 15 min.

[0039] Wherein, the particle gradation of the potassium feldspar is:

[0040] 150 mesh to 180 mesh: 30%;

[0041] 200 mesh to 250 mesh: 40%;

[0042] More than 300 mesh: ≤10%.

[0043] Peel strength test: The finished product prepared in this example is tested according to "GB / T2790 Adhesive 180-degree peel strength test, flexible ma...

Embodiment 3

[0055] Embodiment 3 - the preparation method of high adhesion glass glue

[0056] It uses the following raw materials:

[0057] Polyacrylate emulsion 140kg, potassium feldspar 50kg, supersaturated urea solution 10kg, polyvinyl alcohol 8kg, silicone defoamer 5kg, starch 8kg, water 200kg;

[0058] The preparation method is as follows: first, mix polyacrylate emulsion, potassium feldspar, supersaturated urea solution with water, and let stand for 45 minutes; then, heat to 85°C, and stir at constant temperature for 20 minutes; finally, cool down to 45°C, Add polyvinyl alcohol, silicone defoamer, starch, and stir at constant temperature for 20 minutes.

[0059] Wherein, the particle gradation of the potassium feldspar is:

[0060] 150 mesh to 180 mesh: 40%;

[0061] 200 mesh to 250 mesh: 50%;

[0062] More than 300 mesh: ≤10%.

[0063] Peel strength test: The finished product prepared in this example is tested according to "GB / T2790 Adhesive 180-degree peel strength test, flex...

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Abstract

The invention discloses a high-adhesion sealant and a preparation method thereof. The high-adhesion sealant is made from, by weight, 100-200 parts of polyacrylate emulsion, 20-50 parts of potassium feldspar, 10-30 parts of oversaturated urea solution, 5-8 parts of a flexibilizer, 1-5 parts of a defoaming agent, 2-10 parts of a thickener, and 100-200 parts of water. The preparation method includes:mixing the polyacrylate emulsion, potassium feldspar and oversaturated urea solution with water, and allowing standing for 30-60 min; heating to 80-95 DEG C, and stirring at a constant temperature for 15-30 min; cooling to 40-50 DEG C, adding the flexibilizer, defoaming agent and the thickener, and stirring at a constant temperature for 15-30 min. By adding feldspar and limiting its particle grading in conjunction with intercalation of the oversaturated urea solution, the sodium feldspar and polyacrylate emulsion are brought to full contact reaction, so that adhesion of the sealant is improved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to glass glue. Background technique [0002] Adhesive is also known as adhesive, commonly known as "glue". It is a substance that connects two materials together through the adhesion and cohesive strength of the interface. It will not significantly change the structure of the bonded object and endow the bonding surface with sufficient strength. The bonding of the interface uses adhesives to overcome the stress concentration phenomenon during welding or riveting. The bonding has good vibration resistance, fatigue resistance, uniform stress distribution, and good sealing. Adhesives can replace welding, riveting, bolts and other mechanical connections in many fields, and are suitable for the bonding of special-shaped and complex components, as well as the bonding of thin plate materials and small components, in aerospace, transportation, instrumentation, electronic appliances Adhes...

Claims

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Application Information

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IPC IPC(8): C09J133/04C09J11/04C09J11/06C09J11/08
CPCC09J133/04C08K2201/003C08K2201/005C08L2205/03C09J11/04C09J11/06C09J11/08C08L29/04C08L3/02C08K3/34C08K5/21
Inventor 申轲
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