Heat-insulation laminated glass for automobiles and preparation method of glass

Abstract

The invention relates to the field of glass products, in particular to glass mounted on automobiles, and in particular provides heat-insulation laminated glass for the automobiles and a preparation method of the glass. The heat-insulation laminated glass for the automobiles includes an outer glass plate, a heat-insulation middle layer and an inner glass plate; and the heat-insulation middle layerincludes a first thermoplastic resin film, an infrared reflective film and a second thermoplastic resin film which are sequentially stacked, the infrared reflective film includes at least two resin films stacked together, the difference in refractive indexes between two adjacent resin films is greater than or equal to 0.05, and the softening point temperature of the infrared reflective film is greater than the softening point temperature of the first thermoplastic resin film and the second thermoplastic resin film by at least three times. According to the glass, the heat-insulation middle layer is prevented from being softened simultaneously to be squeezed each other, appearance defects such as waviness and pits are eliminated, the appearance quality of the laminated glass is guaranteed, electromagnetic wave signals are not inhibited from passing through the glass, and communication in the automobiles and other additional features can be guaranteed.

Description

Technical field: [0001] The invention relates to the field of glass products, in particular to glass installed on automobiles, and specifically provides a heat-insulating laminated glass for automobiles and a manufacturing method thereof. Background technique: [0002] In order to make automobiles more energy-saving, environmentally friendly and meet the needs of comfort, automobile glass with heat insulation function is more and more widely installed on automobiles. For laminated glass, making the interlayer film have heat insulation function is one of the technical means to improve the heat insulation performance of laminated glass. In the prior art, functional particles that block infrared rays can be added to the interlayer film so that the interlayer film has better heat insulation performance. For example, Japanese patent JP2001302289 (A) discloses that tin-doped Indium oxide (ITO) and / or antimony-doped tin oxide (ATO) nanoparticles, Japanese patent JP2003261361 (A) d...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a heat-insulating automotive laminated glass and its manufacturing method in view of the shortcomings of the current intermediate film with heat-insulating function that are prone to appearance defects such as ripples or pits

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