Sandwich safety glass capable of absorbing ultraviolet rays, near infrared rays and dazzling light and preparation method thereof

Abstract

The invention discloses sandwich safety glass capable of absorbing ultraviolet rays, near infrared rays and dazzling light, which comprises two pieces of silicate glass and an organic interlayer adhesive material positioned between the two pieces of silicate glass, wherein the organic interlayer adhesive material contains an UV-IR optical protective material. The invention also discloses the preparation method of the sandwich safety glass. The sandwich safety glass of the invention, according to self material characteristics, can selectively transmit human body-benefiting spectra so as to play roles in insulating heat, preventing freezing, preventing the penetration of strong light and heat and radiant rays harmful to human bodies, and the like. The sandwich safety glass also can prevent rain and dew atomization, ice and snow accumulation and glass breakage under intense impact and realize self protection and other functions.

Description

technical field [0001] The present invention relates to a kind of laminated safety glass and its preparation method, more specifically, the present invention relates to a kind of laminated safety glass which can absorb ultraviolet rays, near infrared rays and strong glare light and its preparation method. Background technique [0002] Existing laminated safety glass, such as laminated safety glass used for windshields of automobiles, laminated safety window glass of high-rise buildings and laminated furniture glass, etc., although the light transmittance is high, cannot prevent rain and dew atomization and anti-ice and snow adhesion. It cannot absorb glare and ultraviolet rays of 200-380nm, let alone absorb near-infrared rays of 780-1500nm. Because the existing laminated safety glass is prepared by the following formula technology: (1) polyvinyl butyral film method: cut polyvinyl butyral into the required film base, sandwich it between two layers of glass It is made by heat...

AI Technical Summary

Problems solved by technology

[0002] Existing laminated safety glass, such as laminated safety glass used for windshields of automobiles, laminated safety window glass of high-rise buildings and laminated furniture glass, etc., although the light transmittance is high, cannot prevent rain and dew atomization and anti-ice and snow adhesion. Can not absorb glare and 200-380nm ultraviolet rays, let alone absorb 780-1500nm near-infrared rays

Because the existing laminated safety glass is prepared by the following formula technology: (1) Polyvinyl butyral film method: Cut polyvinyl butyral into the required film base, sandwich it between two layers of glass It is made by heating and pressing with a heat-sealing machine. This method has very high requirements for the film, that is, the film must be free from scratches and defects, and the thickness must be very uniform. The cost of raw materials is high, and the investment in equipment is huge.

(2) Thermal polymerization glue filling method: pour the prepared prepolymer into the middle of the two layers of glass that have been sealed, and gradually heat up in the heating furnace to make it heat and solidify. The production cycle of this method is as long as 24~ 36 hours, the temperature is required to be 80-100°C, and the cost is quite high

The laminated safety glass produced by the light-curing adhesive method has the following disadvantages: (1) It is easy to age, the bonding strength is not high, and it is easy to fail and fall off after a long time, causing accidents

(2) The adhesive cannot adapt to changes in ambient temperature and has a greater impact on the bonding strength of the glass. The plasticizers DBP and DOP used will harden and become brittle over time

(3) After the laminated safety glass is impacted and broken, the retention rate of the fragments is only about 60%, which is not safe

(4) It cannot prevent the atomization of rain and dew, and cannot prevent the adhesion of ice and snow

(5) Can not absorb ultraviolet light from 200 to 380nm and near-infrared light from 780 to 1500nm

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