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Compound elastomer film with heat-insulating property and preparation method

An elastomer and composite technology, which is applied in the field of composite elastomer film and preparation, can solve the problems of no near-infrared absorption function, no absorption of solar radiation, etc., and achieve good product performance, uniform and stable performance, and good bonding performance The effect of matching performance

Active Publication Date: 2019-01-11
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current mature TPU products have no near-infrared absorption function and no ability to absorb solar radiation.

Method used

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  • Compound elastomer film with heat-insulating property and preparation method
  • Compound elastomer film with heat-insulating property and preparation method
  • Compound elastomer film with heat-insulating property and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Two layers of TPU films with a thickness of 0.76mm were directly bonded and laminated by rolling to test their near-infrared barrier properties. In order to accurately test its visible light, near-infrared light transmittance and thermal conductivity, its surface is calendered.

Embodiment 2

[0033] Sequential deposition of 10 nm thick SiO on PET with a thickness of 150 μm by roll-to-roll magnetron sputtering 2 Film, 45nm thick ITO film, 9nm thick Ag film, 40nm thick ITO film, get PET film with near-infrared reflection function. The functional PET film is bonded to two layers of TPU films with a thickness of 0.76 mm by double-roll calendering. A composite elastomer film with thermal insulation function is obtained. The film obtained from the embossing roll needs to be calendered in order to accurately measure its visible light, near-infrared transmittance and thermal conductivity.

Embodiment 3

[0035] With reference to the method of embodiment 2, change the thickness of the Ag film on the PET surface, be 11nm, adopt the same method as embodiment 2 to bond with two layers of TPU films; test its thermal conductivity and visible light, near-infrared transmittance after calendering light rate.

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Abstract

The invention relates to a compound elastomer film with a heat-insulating property and a preparation method and belongs to the technical field of a heat-insulating elastomer film for safety glass witha sandwich structure. The compound elastomer film with the heat-insulating property comprises a first layer of thermoplastic polyurethane elastomer film, a second layer of heat-insulating PET and a third layer of thermoplastic polyurethane elastomer film in turn; the thickness of the heat-insulating PET is controlled within 50-250mum; the heat-insulating function is achieved by preparing a near-infrared short wave obstructing nano-film on a PET substrate; the nano-film includes one or more of indium tin oxide, indium zinc oxide and silver; the thickness of the nano-film is controlled within 50-200mum; the first layer of thermoplastic polyurethane elastomer film, the second layer of heat-insulating PET and the third layer of thermoplastic polyurethane elastomer film are compounded and bonded through a heating and pressurizing method, so as to acquire the compound elastomer film with the heat-insulating property. The prepared glass with the sandwich structure has visible light transmittance reaching up to 60-80% and near-infrared transmittance not above 10%.

Description

technical field [0001] The invention relates to a composite elastomer film with heat insulation performance and a preparation method, belonging to the technical field of heat insulation elastomer film for safety glass with a sandwich structure. Background technique [0002] Laminated glass, or safety glass, is composed of two or more pieces of inorganic glass or organic transparent materials (such as plexiglass, polycarbonate) bonded together through one or more layers of polymer interlayer film. Laminated glass is widely used in automotive glass, high-speed rail glass, helicopter, general aircraft and civil aviation windshield glass due to its excellent impact resistance and safety after breaking. The polymer interlayer film or film plays multiple roles in safety glass or laminated glass, such as bonding, energy absorption, buffering and preventing glass fragments from splashing after impact, and has become one of the key materials widely used in the field of composite stru...

Claims

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Application Information

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IPC IPC(8): B32B27/36B32B27/40B32B27/08B32B33/00B29C65/02
CPCB29C65/02B29C66/45B32B27/08B32B27/36B32B27/40B32B33/00B32B2307/304B32B2307/412B32B2307/51
Inventor 张晓雯刘宏燕郑梦瑶刘其广
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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