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Heat exchange heterogeneous composite film and preparation method thereof

A composite thin film and heterogeneous phase technology, which is applied in the field of new heat exchange heterogeneous composite thin film and its preparation, can solve the problems of gas barrier properties that need to be improved, and achieve simple and easy preparation methods, save production costs, and increase heat transfer. Effect

Active Publication Date: 2014-05-07
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composite film still needs to be improved in terms of mechanical properties and gas barrier properties.

Method used

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  • Heat exchange heterogeneous composite film and preparation method thereof
  • Heat exchange heterogeneous composite film and preparation method thereof
  • Heat exchange heterogeneous composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] In this embodiment, the heat exchange heterogeneous composite film is composed of polyvinyl chloride, sodium montmorillonite and graphite powder, wherein the sodium montmorillonite is dispersed in the polyvinyl chloride film-forming resin as crystal phase powder to form a multiphase solid Film; the mass ratio of polyvinyl chloride powder, sodium montmorillonite and graphite powder is 4:6:0.25.

[0034] The preparation method of the above-mentioned heat exchange heterogeneous composite film is as follows: 8 g of industrial polyvinyl chloride powder is dissolved in 150 mL of tetrahydrofuran organic solvent, and sodium-based montmorillonite and graphite powder are added to the obtained clear liquid, wherein polyvinyl chloride powder, sodium-based montmorillonite The mass ratio of delithiasis and graphite powder is 4:6:0.25, and the suspension is made by ultrasonic vibration for 20 minutes; then, the suspension is cast on a glass plate and dried to form a self-suspending fil...

Embodiment 2

[0041] In this embodiment, the heat exchange heterogeneous composite film is composed of polyvinyl chloride, sodium montmorillonite and graphite powder, wherein the sodium montmorillonite is dispersed in the polyvinyl chloride film-forming resin as crystal phase powder to form a multiphase solid Film; the mass ratio of polyvinyl chloride powder, sodium montmorillonite and graphite powder is 4:6:0.1.

[0042] The preparation method of the above-mentioned heat exchange heterogeneous composite film is as follows: 8 g of industrial polyvinyl chloride powder is dissolved in 150 mL of tetrahydrofuran organic solvent, and sodium-based montmorillonite and graphite powder are added to the obtained clear liquid, wherein polyvinyl chloride powder, sodium-based montmorillonite The mass ratio of destoned and graphite powder is 4:6:0.1, and the suspension is made by ultrasonic vibration for 20 minutes; then, the suspension is cast on a glass plate and dried to form a self-suspending film; fi...

Embodiment 3

[0047] In this embodiment, the heat exchange heterogeneous composite film is composed of polyvinyl chloride, sodium montmorillonite and graphite powder, wherein the sodium montmorillonite is dispersed in the film-forming resin as crystal phase powder to form a multiphase solid film; The mass ratio of vinyl chloride powder, sodium montmorillonite and graphite powder is 4:6:0.5.

[0048] The preparation method of the above-mentioned heat exchange heterogeneous composite film is as follows: 8 g of industrial polyvinyl chloride powder is dissolved in 150 mL of tetrahydrofuran organic solvent, and sodium-based montmorillonite and graphite powder are added to the obtained clear liquid, wherein polyvinyl chloride powder, sodium-based montmorillonite The mass ratio of destoned and graphite powder is 4:6:0.5, and the suspension is made by ultrasonic vibration for 20 minutes; then, the suspension is cast on a glass plate and dried to form a self-suspending film; finally, at 40°C After h...

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Abstract

The invention discloses a heat exchange heterogeneous composite film and a preparation method thereof. The heat exchange heterogeneous composite film consists of high polymers, metallic compound and high-heat and electricity conduction materials, wherein the metallic compound in the state of crystalline-phase particles are dispersed in high polymer substrates to form a multi-phase solid film; the high polymers have solubility or fusibility; the metallic compound have lamellar, meshy or porous structures; and the high-heat and electricity conduction materials have a lamellar structure, a tubular structure or other crystal structures, and the high-heat and electricity conduction materials are 1 to 10 percent based on the total mass of the high polymers and the metallic compound. Compared with the prior art, the heat exchange heterogeneous composite film has the advantages that the heat exchange heterogeneous composite film has a good flame retardant property, a good moisture permeation property, certain mechanical strength or dimensional stability, heat conductivity and electricity conductivity, and has actual application prospect in the fields of wastewater and heat recovery devices, water treatment and the like.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a novel heat exchange heterogeneous composite film and a preparation method thereof. Background technique [0002] People spend 90% of their time indoors, and indoor air pollution levels may be 2 to 5 times that of outdoors. For example, the formaldehyde in newly decorated rooms exceeds the standard, the oil fume content in the kitchen is too high, the carbon dioxide and water vapor content in closed cars and cabins exceeds the standard, and the air in crowded areas is turbid. These reasons will seriously affect human health. In everyday life, almost all indoor spaces contain dust, bacteria, viruses, animal hair, smoke and harmful fibers including asbestos. Poor air quality makes asthma and allergies worse. Due to the use of air conditioning or heating, if you directly open the doors and windows to allow indoor and outdoor air to circulate, it wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L23/06C08L23/30C08L29/04C08L23/28C08K3/34C08K3/04C08K3/16C08K3/32C08K3/30C08K3/24C08K7/00C08K3/08C08J5/18
CPCY02P20/10Y02P20/50
Inventor 薛立新刘秉鑫陈景李娟杜旭东
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI