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Mixed type porous heat insulation composite material and preparation method thereof

A composite material and hybrid technology, which is applied in the field of hybrid porous thermal insulation composite materials and its preparation, can solve the problems of high price and restrictions on the development of architectural laminated glass, and achieve the effects of low cost, high strength and small amount of solvent usage

Inactive Publication Date: 2013-07-24
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the market of polyvinyl butyral resin (PVB), the main material of glass interlayer film, is basically monopolized by the United States and Japan, and the price is expensive, which restricts the development of architectural laminated glass in my country.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] SiO 2 The nanotubes (with an inner diameter of 50nm-100nm and an outer diameter of 60nm-200nm) were first washed with 0.1mol / L dilute hydrochloric acid, rinsed with water, and dried at 140°C for 1 hour. The configured KH570 absolute ethanol solution, press W 纳米管 :W 偶联剂 =100:1 add dried SiO 2 In the nanotube, ultrasonically for 1 hour, and dried at 80°C for 2 hours. According to another embodiment of the present invention, SiO 2 The inner diameter of the nanotube is 50 nm to 100 nm, and the outer diameter is 60 nm to 1 μm.

[0020] Will treat SiO 2 Add 17g of nanotubes to 83g of liquid silicone rubber, put it into a small kneader and stir evenly, pour it into a mold, draw a vacuum, and solidify and form.

[0021] After cooling the sample, measure SiO 2 Effect of nanotubes on the thermal conductivity of liquid silicone rubber. The test results are shown in Table 1.

Embodiment 2

[0023] The hollow glass microspheres (with a particle size of 10 μm to 100 μm) were first washed with 0.1 mol / L dilute hydrochloric acid, then rinsed with water and dried at 140°C for 1 hour. The configured KH570 absolute ethanol solution, press W 空心玻璃微球 :W 偶联剂 =100:1 added to dried hollow glass microspheres, ultrasonicated for 1 hour, and dried at 80°C for 2 hours. According to another embodiment of the present invention, the particle size of the hollow glass microspheres is 100 nm-200 μm.

[0024] Add 10 g of the processed hollow glass microspheres into 90 g of liquid silicone rubber in batches, stir evenly, pour into a mold, draw a vacuum, and solidify into shape.

[0025] After the sample was cooled, the effect of hollow glass microspheres on the thermal conductivity of liquid silicone rubber was determined. The test results are shown in Table 1.

Embodiment 3

[0027] The hollow polyester fiber (with an outer diameter of 1 μm to 5 μm and an inner diameter of 50 nm to 100 nm) was first washed with 0.1 mol / L dilute hydrochloric acid, rinsed with water, and dried at 140 ° C for 1 hour. The configured KH560 absolute ethanol solution, press W 中空聚酯纤维 :W 偶联剂 =100:1 added to the dried hollow polyester fiber, ultrasonicated for 1 hour, and dried at 80°C for 2 hours. According to another embodiment of the present invention, the outer diameter of the hollow polyester fiber is 1 μm˜10 μm, and the inner diameter is 50 nm˜100 nm.

[0028] Add 15g of the processed hollow polyester fiber into 85g of liquid silicone rubber in batches, stir evenly, pour into the mold, draw a vacuum, and solidify and form.

[0029] After the samples had cooled, the effect of the hollow polyester fibers on the thermal conductivity of the liquid silicone rubber was determined. The test results are shown in Table 1.

[0030] Table 1 The effect of air carrier on the th...

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Abstract

The invention discloses a mixed type porous heat insulation composite material and a preparation method thereof. The heat insulation composite material comprises the following components in percentage by weight: 2-20% of air carrier and 80-98% of liquid silicone rubber. The preparation method comprises the following steps of: firstly washing the air carrier with dilute hydrochloric acid, washing with water, and then drying at 130-150 DEG C for 1-2h; further soaking the dried air carrier in a coupling agent, namely an anhydrous ethanol solution, performing ultrasonic treatment, and drying; and uniformly mixing the air carrier after drying with the liquid silicone rubber, injecting into a mold, performing vacuum-pumping operation for removing bubbles, and then curing and forming. The mixed type porous heat insulation composite material which is prepared after mixing and curing the air carrier with good heat insulation performance and a hollow structure and the liquid silicone rubber has the advantages of low heat conduction coefficient, high strength, good heat stability and impact resistance, and can realize the purposes of heat insulation, insulation and fire prevention; and the preparation method has the advantages of simple process, small using quantity of a solvent and low cost of raw materials, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a preparation method of a composite material used in the field of heat insulation, and relates to a hybrid porous heat insulation composite material and a preparation method thereof. The prepared hybrid porous heat insulation composite material can be used for high-tech applications such as aviation, aerospace, electronics, etc. field. Background technique [0002] At present, my country's construction and aerospace have become two major energy-consuming fields in society. The most direct and effective way to save energy in buildings is to use thermal insulation materials. Laminated glass is widely used in the construction industry for its excellent safety, sound insulation, heat insulation, and UV resistance. At present, the market of polyvinyl butyral resin (PVB), the main material of glass interlayer film, is basically monopolized by the United States and Japan, and the price is expensive, which restricts the development of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/04C08L67/00C08K7/00C08K7/22C08K7/26C08K7/28C08K3/04
Inventor 邓建国纪兰香王慧利白小峰马春彦
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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