Structural sealant for glass curtain wall and preparation method for structural sealant

A glass curtain wall and sealant technology, which is applied in the direction of chemical instruments and methods, adhesives, and other chemical processes, can solve the problems of low displacement capacity, poor adhesion, and low mechanical strength, and achieve good aging resistance and adhesion Good, excellent mechanical strength

Active Publication Date: 2015-10-07
香山红叶集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to improve the disadvantages of low mechanical strength, poor cohesiveness and low displacement capacity of the current

Method used

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  • Structural sealant for glass curtain wall and preparation method for structural sealant
  • Structural sealant for glass curtain wall and preparation method for structural sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The formula of structural sealant for glass curtain wall is as follows:

[0028] 120kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 55000mPa·s, 70kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 4000mPa·s, 65kg of acrylic acid, 20kg of propylene tricarboxylic acid, 12kg of polypropylene powder, Bis(3,4-dimethylbenzylidene)sorbitol 0.08kg, trimethoxyboroxine 0.3kg, 2-amino-N-cyclohexylacetamide 0.1kg, vinyl tributylketoxime silane 0.9kg, ethylene glycol glycidyl ether 0.2kg, dibutyltin mercaptide 1.8kg, hollow glass microspheres 2.0kg, methyl tributylketoxime silane 0.10kg, 3-aminopropyltriethoxysilane 2kg , 2.4kg of dibutyltin dilaurate and 0.01kg of ammonium persulfate.

[0029] Wherein, the particle size of the hollow glass microspheres is 10 microns.

[0030] The preparation method comprises the following steps: (1), the hydroxyl-terminated polydimethylsiloxane with a viscosity of 55000mPa·s, the hydroxyl-terminated polydimethyl...

Embodiment 2

[0032]160kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 60000mPa·s, 80kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 3500mPa·s, 55kg of acrylic acid, 35kg of propylene tricarboxylic acid, 10kg of polypropylene powder, Bis(3,4-dimethylbenzylidene)sorbitol 0.05kg, trimethoxyboroxine 0.15kg, 2-amino-N-cyclohexylacetamide 0.06kg, vinyl tributylketoxime silane 0.5kg, ethylene glycol glycidyl ether 0.1kg, dibutyltin mercaptide 1.5kg, hollow glass microspheres 0.5kg, methyl tributylketoxime silane 0.12kg, 3-aminopropyltriethoxysilane 3kg , 2.2kg of dibutyltin dilaurate and 0.02kg of ammonium persulfate.

[0033] Wherein, the particle size of the hollow glass microspheres is 15 microns.

[0034] The preparation method comprises the following steps: (1), the hydroxyl-terminated polydimethylsiloxane with a viscosity of 60000mPa·s, the hydroxyl-terminated polydimethylsiloxane with a viscosity of 3500mPa·s, acrylic acid and propylene three Add car...

Embodiment 3

[0036] 140kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 65000mPa·s, 60kg of hydroxyl-terminated polydimethylsiloxane with a viscosity of 3000mPa·s, 60kg of acrylic acid, 30kg of propylene tricarboxylic acid, 5kg of polypropylene powder, Bis(3,4-dimethylbenzylidene) sorbitol 0.12kg, trimethoxyboroxine 0.25kg, 2-amino-N-cyclohexylacetamide 0.02kg, vinyltributanoximinosilane 0.7kg, ethylene glycol glycidyl ether 0.3kg, dibutyltin mercaptide 1.2kg, hollow glass microspheres 2.5kg, methyl tributylketoxime silane 0.08kg, 3-aminopropyltriethoxysilane 4kg , 1.5kg of dibutyltin dilaurate and 0.01kg of ammonium persulfate.

[0037] The particle size of the hollow glass microspheres is 30 microns.

[0038] The preparation method comprises the following steps: (1), the hydroxyl-terminated polydimethylsiloxane with a viscosity of 65000mPa·s, the hydroxyl-terminated polydimethylsiloxane with a viscosity of 3000mPa·s, acrylic acid and propylene three Add carboxylic aci...

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Abstract

The invention discloses a structural sealant for a glass curtain wall and a preparation method for the structural sealant. A formula of the structural sealant consists of the following components: hydroxyl-terminated polydimethylsiloxane with viscosity of 55000 to 65000mPa.s, hydroxyl-terminated polydimethylsiloxane with viscosity of 3000 to 4000mPa.s, acrylic acid, aconitic acid, polypropylene powder, bis(3,4-dimethyl benzylidene) sorbitol, trimethoxyboroxine, 2-amino-N-cyclohexyl acetamide, vinyl tris(methylethylketoximino)silane, ethylene glycol glycidyl ether, dibutyltin mercaptide, hollow glass bead, methyl-tri-butanone-oxime silane, 3-amino propyl triethoxysilane, dibutyltin dilaurate and ammonium persulfate. The structural sealant for the glass curtain wall is excellent in mechanical strength, free of priming coat in use, good in caking property, excellent in comprehensive performance, good in ageing resistance, and capable of being applied to a high-displacement occasion.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a structural sealant for glass curtain walls and a preparation method thereof. Background technique [0002] The glass curtain wall has many advantages such as strong integrity, light structure, elastic connection, good earthquake resistance, convenient construction and maintenance, and has become a beautiful landscape of modern cities. In the process of building glass curtain walls, silicone structural sealant is one of the key materials. Because of its excellent structural sealing performance, heat and humidity resistance, UV resistance, ozone aging resistance, etc., it has good compatibility with aluminum alloy frames and coated glass of various colors, and can withstand external wind loads. The stress of repeated deformation of aluminum and glass caused by thermal expansion and contraction caused by glass self-weight and temperature changes is transmitted to the building s...

Claims

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Application Information

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IPC IPC(8): C09J151/00C09J11/06C09K3/10C08F291/00C08F220/06
Inventor 刘宁乌春丽秦玉柱白成宣厉祥成范开升
Owner 香山红叶集团有限公司
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