CN102582136A - Transparent heat insulating material with multilayer composite structure and preparation method thereof - Google Patents

Abstract

The invention provides a transparent heat insulating material with a multilayer composite in which the first layer is an infrared screening layer (1) and the second layer is a self-supporting transparent hollow layer (2), wherein the infrared screening layer (1) is composed of a transparent high polymer material and a nano material with an infrared screening function. According to the invention, the transparent material has the advantages of low price, light weight, impact resistance, easiness in shaping, convenience in cutting, excellent performance and the like. The transparent heat insulating material has visible light transmission being higher than 75%, near infrared light area screening factor being higher than 60% and ultraviolet light screening factor being higher than 98%.

Description

A kind of transparent insulate material and preparation method thereof with multi-layer compound structure

Technical field

The present invention relates to a kind ofly to collect heat insulation, insulation, the infrared barrier function is the transparent heat-insulating film or the preparation of plates methods and applications of one; Relate in particular to a kind of transparent insulate material and preparation method thereof, belong to the inorganic-organic composite material field with multi-layer compound structure.

Background technology

Sunshine is because the strong light radiation that sun generation thermonuclear fusion reaction produces; When sunshine is absorbed by object; Luminous energy just converts heat energy into, near the contained heat energy large percentage of the light of ruddiness, though the contained heat energy ratio of purple light is little; But have very strong aging action, it is very big to the harm of positions such as human body skin and eyes to cross strong ultraviolet light.

Transparent heat-insulated functional material can effectively play the effect of energy-saving and environmental protection, and is just unified mutually with the environmentally friendly urban construction of advocating now, can effectively reduce ultraviolet ray and the infrared ray injury effect to human body simultaneously.Be used for building the entering that can effectively intercept outside heat, also can reduce the utilization rate of air-conditioning when giving people's creating comfortable environment.

Present heat-barrier material is divided into two types of heat emission and porous materials; The performance of excellences such as glass curtain wall is heat insulation because of having, sound insulation, protection against the tide was widely used in high-rise before 10 years; The big problem that can nowadays produce is light pollution, energy consumption is big, frangible and matter heavily causes coming off in a large number of outer glass, and serious threat is to human life security.Macromolecular material have light weight, high-strength, corrosion-resistant, insulation, radiation hardness, transparent, be prone to excellent performance such as processing, through different modification designs, existing at present portioned product replaces original glass product.Simultaneously, also can in macromolecular material, add some inorganic material, make material have some particular functionality, for example, compound inorganic powder material with heat-proof quality has numerous excellent properties such as transparent, heat insulation, insulation in macromolecule.

Summary of the invention

The purpose of this invention is to provide a kind of transparent insulate material with multi-layer compound structure, another object of the present invention provides the preparation method of above-mentioned material.

Technical scheme of the present invention is: a kind of transparent insulate material with multi-layer compound structure is characterized in that being made up of infrared barrier layer (1) and self-supporting clear hollow layer (2); Infrared barrier layer (1) is positioned at the top of self-supporting clear hollow layer (2); Wherein, Infrared barrier layer (1) is composited by transparent polymer material and heat insulating function material; Wherein transparent polymer material accounts for the 60-90% of transparent polymer material and heat insulating function material gross mass, and the heat insulating function material accounts for the 10-40% of transparent polymer material and heat insulating function material gross mass; Self-supporting hollow layer (2) is made up of in Merlon (PC), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS) transparent resin, clear polyimides (PA), the polystyrene (PS) any one, and self-supporting clear hollow layer inside has I shape, corrugation type or pore structure.

Preferred described transparent polymer material is at least a kind of in Merlon (PC), polymethyl methacrylate (PMMA), PETG (PET), polystyrene (PS), polypropylene (PP), polyurethane (PU) or the polyamide (PA); Described heat insulating function material is the inorganic material with infrared external reflection-absorption characteristic; The preferred commercially available surfactant-modified inorganic nanometer powder tin-antiomony oxide (ATO) with infrared barrier characteristic, tin indium oxide (ITO) or the zinc oxide aluminum (AZO) of silane coupler (KH560 or KH570 etc.) improved the compatibility of inorganic particle and macromolecular material greatly; It is compound that inorganic particle after the modification adopts The tape casting or dissolution in low temperature method and transparent polymer material to carry out, and obtains finely dispersed ground floor infrared ray barrier layer heat-barrier material.

The thickness of preferred described infrared barrier layer (1) is 20-150um; The thickness of self-supporting clear hollow layer (2) is 0.5-20mm.

The present invention also provides the method for preparing above-mentioned transparent insulate material, and its concrete steps are:

1) earlier transparent polymer material is mixed with the heat insulating function material by mass percentage, be adopted as The tape casting, extrusion molding or dissolution in low temperature method and carry out moulding and process the infrared barrier layer that thickness is 20-150um;

2) self-supporting clear hollow layer (2) is the commercially available material, and as the matrix material of infrared barrier layer, the thickness range of choice is 0.5-20mm;

3) adopt the mode of co-extrusion that infrared barrier layer (1) is compound on the self-supporting clear hollow layer (2), obtain transparent insulate material.

Described transparent heat-insulating film or sheet material are made up of ground floor infrared ray barrier layer and second layer self-supporting clear hollow layer from top to bottom, and wherein ground floor infrared ray barrier layer is applicable to and multiple material compound heat-insulation.Second layer self-supporting clear hollow layer can be I shape, corrugation type or loose structure, can have certain intensity by Merlon (PC), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS) transparent resin etc. and form with the material of the transparency.The clear hollow layer is as the backing material of infrared ray barrier layer; Adopt the mode of co-extrusion to be compound on the heat insulation backing material infrared ray barrier layer, make this patent material in cheap, have infrared barrier, heat insulation, shock-resistant, insulation, excellent properties such as transparent.

Beneficial effect:

Ground floor infrared ray barrier layer of the present invention has the function of heat reflection-absorption; Have the initiatively ability of the isolated heat of reflected energy for protected material, making that heat need not get into just can be heat insulation in the material bodies, need not adopt the method for traditional increase thickness; Film or sheet material can be heat insulation; The visible light transmissivity of heat-barrier material of the present invention reaches more than 75%, and the near-infrared region shielding rate reaches more than 60%, and the ultravioletlight screening rate reaches more than 98%.

Description of drawings

Fig. 1 is the structural representation of transparent insulate material; 1-infrared ray barrier layer wherein; 2-self-supporting hollow layer.

The specific embodiment

Embodiment 1

The tape casting prepares the composite board of ATO powder after PC and the KH560 modification

The KH560 modification ATO powder (sea is safe to produce) that in 700gPC, adds 300g; Use torque rheometer to carry out compound; Blend is accomplished back employing flow casting molding and is processed the infrared thermal insulation layer of 100 μ m, again with the infrared thermal insulation layer of 100 μ m and the thick corrugation type of 10mm structure ABS hollow transparent plate through being made by co-extrusion to transparent heat-insulated composite board.

The optics and the heat-proof quality of table 1 infrared barrier layer heat-barrier material

Embodiment 2

The tape casting prepares the composite board of ITO after PA and the KH570 modification

ITO powder (bright rich production) after the adding 40g KH570 modification in the PA of 600g; Use torque rheometer to carry out compound; Back employing flow casting molding is accomplished in blend, and to process thickness be 20 μ m infrared ray barrier layers, again with 20 μ m infrared ray barrier layers and the thick I-shaped structure PMMA of 20mm hollow transparent plate through being made by co-extrusion to transparent heat-insulated composite board.

The optics and the heat-proof quality of table 2 infrared barrier layer heat-barrier material

Embodiment 3

The dissolution in low temperature legal system is equipped with the laminated film of ITO after PMMA and the KH560 modification

After the PMMA of 900g is dissolved in xylenes in advance; ITO (bright rich production) slurry after the adding 100KH560 modification; 80 ℃ of stirrings of water-bath are compound; Pour out solution after 5 hours and treat can form the thick infrared ray barrier layer of 150 μ m after the solvent evaporates, again with the thick infrared ray barrier layer of 150 μ m and the thick corrugation type of 20mm structure PC hollow transparent plate through being made by co-extrusion to transparent heat-insulated composite board.

The optics and the heat-proof quality of table 3 infrared barrier layer heat-barrier material

Embodiment 4

Extrusion molding prepares the composite board of AZO after PS and the KH570 modification

The modification AZO powder (sea is safe to produce) that in 800PS, adds 200g KH570; Use torque rheometer to carry out compound; Process 150 μ m infrared ray barrier layers after blend is accomplished, again with 150 μ m infrared ray barrier layers and the thick PP microporous barrier of 0.5mm through being made by co-extrusion to transparent heat-insulated composite membrane.

The optics and the heat-proof quality of table 4 infrared barrier layer heat-barrier material

Claims (4)

1. the transparent insulate material with multi-layer compound structure is characterized in that being made up of infrared barrier layer (1) and self-supporting clear hollow layer (2); Wherein, Infrared barrier layer (1) is composited by transparent polymer material and heat insulating function material; Wherein transparent polymer material accounts for the 60-90% of transparent polymer material and heat insulating function material gross mass, and the heat insulating function material accounts for the 10-40% of transparent polymer material and heat insulating function material gross mass; Self-supporting hollow layer (2) is made up of in Merlon, polypropylene, acrylonitrile-butadiene-styrene copolymer transparent resin, clear polyimides, the polystyrene any one, and self-supporting clear hollow layer inside has I shape, corrugation type or pore structure.

2. require described transparent insulate material according to right 1, it is characterized in that described transparent polymer material is at least a kind of in Merlon, polymethyl methacrylate, PETG, polystyrene, polypropylene, polyurethane or the polyamide; Described heat insulating function material is silane coupler modified tin-antiomony oxide, tin indium oxide or zinc oxide aluminum.

3. require described transparent insulate material according to right 1, the thickness that it is characterized in that described infrared barrier layer (1) is 20-150um; The thickness of self-supporting clear hollow layer (2) is 0.5-20mm.

4. method for preparing transparent insulate material as claimed in claim 1, its concrete steps are:

1) earlier transparent polymer material is mixed with the heat insulating function material by mass percentage, be adopted as The tape casting, extrusion molding or dissolution in low temperature method and carry out moulding and process the infrared barrier layer that thickness is 20-150um;

2) selecting the thickness range of choice is 0.5-20mm self-supporting clear hollow layer material, as the matrix material of infrared barrier layer;

3) adopt the mode of co-extrusion that infrared barrier layer (1) is compound on the self-supporting clear hollow layer (2), obtain transparent insulate material.