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Light bullet-proof glass without splashed fragments

A bullet-proof glass, glass technology, applied in glass/slag layered products, lamination devices, lamination and other directions, can solve the problems of fragment splash, light transmittance, poor heat and sound insulation, and achieve good flame retardancy and sound insulation. Good performance, the effect of preventing the splashing of the inner glass

Inactive Publication Date: 2014-01-08
天津广源新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned bullet-proof glass is light in weight and thin in thickness, as a special-purpose bullet-proof glass, its light transmittance, heat insulation and sound insulation are poor, and there are fragments splashing, so it is not suitable for aviation, ground force combat equipment and other fields

Method used

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  • Light bullet-proof glass without splashed fragments

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Raw material preparation: cut, clean and dry the original glass sheet, and reserve it; cut and dry the polyurethane sheet, and set it aside; the drying temperature is 65°C, and the time is 4 hours;

[0029] (2) Combination: Laminate glass 5mm, PVB film 0.76mm, glass 5mm, PU film 1.26mm, PC board 5mm, PU film 0.63mm, PC board 4mm in sequence; the temperature of the lamination is 20°C and the humidity is 25%;

[0030] (3) Pre-pressing and exhausting: pre-pressing and exhausting the laminated composite materials; the pre-pressing temperature is 100°C, the cylinder pressure of the rubber roller is 0.6MPa, and the vacuum degree is 0.015MPa;

[0031] (4) High-pressure molding: send the pre-pressed composite material into the autoclave, keep the temperature and pressure for 50 minutes, then lower the temperature and release the pressure, cool, and exit the autoclave to obtain light bulletproof glass. Pressure 1.1MPa.

[0032] After testing, the bulletproof glass has an ar...

Embodiment 2

[0034] Bulletproof glass was prepared according to the method of Example 1.

[0035] In step 1), the drying temperature is 75°C and the drying time is 3h;

[0036] In step 2), the laminating temperature is 18°C ​​and the humidity is controlled at 25%;

[0037] The order of raw material lamination is: glass 5mm, EVA film 0.80mm, glass 6mm, PA film 0.70mm, PC sheet 6mm, PU film 1.26mm, PC sheet 4mm;

[0038] In step 3), the pre-compression pressure is 0.7MPa, the temperature is 120°C, and the vacuum degree is 0.02MPa;

[0039] In step 4), the heat preservation and pressure holding conditions are: temperature 110° C., pressure 1.5 MPa, heat preservation and pressure holding time 60 minutes.

[0040] After testing, the bulletproof glass has an area of ​​420×420mm, a thickness of 22.84mm, a light transmittance of 87%, a flame-retardant performance of B1, a sound insulation of 18.83dB, and a weight of 6.98kg.

Embodiment 3

[0042] Bulletproof glass was prepared according to the method of Example 1.

[0043] In step 1), the drying temperature is 65°C and the drying time is 4h;

[0044] In step 2), the laminating temperature is 25°C and the humidity is controlled at 20%;

[0045] The order of raw material lamination is: glass 7mm, EVA film 0.62mm, glass 4mm, PA film 0.79mm, PC sheet 7mm, PU film 1.26mm, PC sheet 4mm;

[0046] In step 3), the pre-compression pressure is 0.5MPa, the temperature is 70°C, and the vacuum degree is 0.01MPa;

[0047] In step 4), the heat preservation and pressure holding conditions are: temperature 130° C., pressure 1.0 MPa, heat preservation and pressure holding time 40 minutes.

[0048] After testing, the bulletproof glass has an area of ​​420×420mm, a thickness of 23.44mm, a light transmittance of 85%, a flame-retardant performance of B1, a sound insulation of 19.21dB, and a weight of 7.03kg.

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Abstract

The invention relates to light bullet-proof glass without splashed fragments, and the light bullet-proof glass is successively composed of glass, a film, glass, a film, a thermoplastic resin sheet material, a film and a thermoplastic resin sheet material. The bullet-proof glass has the thickness of 18-24 mm, the light transmittance of 85%-90%, good flame resistance and good heat-insulation sound-insulation performances, is capable of resisting the impact of three continuous bullets emitted from a position with a distance of 10 m by a 79 type 7.62mm submachine gun, has high explosion-proof performance, and is capable of effectively preventing bullets from passing through the glass and preventing secondary damage to human body.

Description

technical field [0001] The invention relates to a light-duty bullet-proof glass without fragments splashing, and belongs to the technical field of special glass. Background technique [0002] Bulletproof glass is a composite material obtained by special processing of glass (or plexiglass) and high-quality engineering plastics. Different manufacturers produce different bulletproof glass. But basically layers of polycarbonate material are sandwiched between regular layers of glass, a process called lamination. In the process, a substance is formed that resembles normal glass but is thicker than normal glass. Polycarbonate is a hard, transparent plastic. The thickness of bulletproof glass is between 7mm and 75mm. A bullet fired at bulletproof glass would puncture the outer layer of glass, but the polycarbonate glass material layer absorbs the energy of the bullet, preventing it from penetrating the inner layer of glass. These large pieces of bulletproof glass, which had bee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/10B32B7/12B32B37/06B32B37/10
Inventor 高源赵春新董云娜李培欣
Owner 天津广源新材料科技有限公司
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