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Ultrasonically-modified nano heat-insulating powder coating for aluminum alloy section and method for preparing same

A technology for aluminum alloy profiles and powder coatings, which is applied in powder coatings, polyester coatings, coatings, etc., can solve the problems that aluminum alloy profiles cannot be used, and achieve the effect of broad application prospects.

Inactive Publication Date: 2012-11-07
SHANGHAI NAT ENG RES CENT FORNANOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the prepared coating is water-based, it cannot be used on aluminum alloy profiles

Method used

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  • Ultrasonically-modified nano heat-insulating powder coating for aluminum alloy section and method for preparing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] formula:

[0040] CE2598 100g

[0041] T105M 9 grams

[0042] GLP 505 1.5g

[0043] Benzoin 0.6g

[0044] Hollow glass microspheres 10g

[0045] Power Plant Floating Beads 5g

[0046] Nano Y 2 o 3 10gram

[0047] Titanium dioxide 35 grams

[0048] Barium Sulfate 35g

[0049] 1 Ultrasonic modification of nanometer materials: change the mass concentration to nanometer Y 2 o 3 Add 1.2wt% of γ-mercaptopropyltrimethoxysilane to 90% ethanol aqueous solution at a concentration of 90% by volume, ultrasonically pretreat for 10min at 30°C, and then add nanometer Y 2 o 3 50 grams, use glacial acetic acid to control the pH value of the system to be 5, then ultrasonically treat for 30min at 50°C, and vacuum dry in a DZF-6050 vacuum oven to obtain ultrasonically modified nanometer Y 2 o 3 ;

[0050] 2 Preparation of nanometer heat-insulating powder coating: measure and weigh each component in the formula, add it to a high-speed mixer for mixing. ...

Embodiment 2

[0058] formula:

[0059] CE2598 100g

[0060] T105M 7 grams

[0061] GLP 505 0.8 g

[0062] Benzoin 0.3g

[0063] Hollow glass microspheres 10g

[0064] Hollow ceramic microspheres 5g

[0065] Nano ZnO 8g

[0066] Titanium dioxide 35 grams

[0067] Barium Sulfate 35g

[0068] 1 Ultrasonic modification of nanomaterials: adding γ-glycidyl etheroxypropyltrimethoxysilane with a mass concentration of 0.8wt% nano-ZnO to 75% ethanol aqueous solution at a concentration of 75% by volume, ultrasonic pretreatment at 40°C 8 minutes, then add 45 grams of nano-ZnO, use glacial acetic acid to control the pH value of the system to 5, and then ultrasonically treat it at 60°C for 25 minutes, then vacuum-dry in a DZF-6050 vacuum oven to obtain ultrasonically modified nano-ZnO;

[0069] 2 Preparation of nanometer heat-insulating powder coating: measure and weigh each component in the formula, add it to a high-speed mixer for mixing. Mix for 15 minutes to fully mix each component, and sen...

Embodiment 3

[0072] formula:

[0073] CE2598 100g

[0074] T105M 9 grams

[0075] GLP 505 1.2g

[0076] Benzoin 0.5g

[0077] Hollow glass microspheres 5g

[0078] Power Plant Floating Beads 10g

[0079] nano-SiO 2 5 grams

[0080] Titanium dioxide 35 grams

[0081] Barium Sulfate 35g

[0082] 1 Ultrasonic modification of nanomaterials: change the mass concentration to nano-SiO 2 Add 1.5wt% vinyl tri-tert-butylperoxysilane to 78% ethanol aqueous solution, then ultrasonic pretreatment at 35°C for 10min, then add nano-SiO 2 40 grams, use glacial acetic acid to control the pH value of the system to 6, then ultrasonically treat for 25min at 70°C, and then vacuum dry in a DZF-6050 vacuum oven to obtain ultrasonically modified SiO 2 ;

[0083] 2 Preparation of nanometer heat-insulating powder coating: measure and weigh each component in the formula, add it to a high-speed mixer for mixing. Mix for 15 minutes to fully mix the components and send the uniformly m...

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Abstract

The invention relates to an ultrasonically-modified nano heat-insulating powder coating for an aluminum alloy section and a method for preparing the same. The powder coating comprises the following components in part by mass: 100 parts of film-forming agent, 4 to 9 parts of curing agent, 0.6 to 1.5 parts of leveling agent, 0.2 to 0.6 part of degassing agent, 15 parts of hollow microsphere, 5 to 10 parts of ultrasonically-modified nanomaterial and 70 parts of filler. The heat conductivity of the prepared ultrasonically-modified nano heat-insulating powder coating is 0.0932 (W.m-1.K-1) which is reduced by 50.84 percent compared with that of a blank sample without nanomaterial; and therefore, the coating has the characteristics of obviously reduced heat conductivity, simple and convenient preparation and broad application prospect.

Description

technical field [0001] The invention relates to an ultrasonically modified nano heat-insulating powder coating for aluminum alloy profiles and a preparation method thereof. Background technique [0002] Because powder coatings do not contain organic solvents, they can avoid environmental pollution, fire hazards, and human health hazards, and the sprayed coatings can be recycled and reused, so it is considered to be environmentally friendly, high production efficiency, and excellent coating performance. And economical coating products, the fastest growing among various coating varieties, it is usually used as a decorative coating in aluminum alloy profiles. [0003] For building insulation, 40%-50% of energy consumption for heating and air conditioning is caused by heat transfer through doors and windows. Therefore, as the voice of energy saving and environmental protection is getting higher and higher, it is an effective method to spray nano-powder coating with heat insulat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D167/00C09D5/03C09D7/12
Inventor 陈月辉盛小海金彩虹何丹农
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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