CN103496224B - A kind of bulletproof glass that is light-duty, that splash without fragment - Google Patents

Abstract

The present invention relates to a kind of bulletproof glass that is light-duty, that splash without fragment, be made up of glass, film, glass, film, thermoplastic resin sheet material, film, thermoplastic resin sheet material successively.Bulletproof glass of the present invention, its thickness 18-24mm, light transmittance reaches 85%-90%, good flame resistance, heat insulation performance is good, can anti-continuous 3 bullets of 79 formula 7.62mm light submachine gun, 10 meters of distances, explosion-proof is high, the secondary injury that can effectively prevent from bullet from passing glass and glass breaking causing human body.

Description

A kind of bulletproof glass that is light-duty, that splash without fragment

Technical field

The present invention relates to a kind of bulletproof glass that is light-duty, that splash without fragment, belong to special glass technical field.

Background technology

Bulletproof glass is a kind of compound material obtained through special processing by glass (or lucite) and high-quality engineering plastics, and the bulletproof glass that different vendor produces is different.But be all press from both sides makrolon material layer in common glassy layer substantially, this process is called lamination.In this process, a kind of similar simple glass is defined but the material thicker than simple glass.Merlon is a kind of rigid transparent plastic.The thickness of bulletproof glass is between 7 millimeters to 75 millimeters.Outer field glass can puncture by the bullet penetrated on bulletproof glass, but polycarbonate glass material layer can absorb the energy of bullet, thus stops it to penetrate glass inner layer.The bulletproof glass of these bulks is doing public purposes during World War II, usually thickly reaches 10.0 centimetres to 12.0 centimetres, and extremely heavy.

CN1690005A discloses a kind of manufacture method of high strength bulletproof laminated glass, polycarbonate membrane is glued between two panels adhesion film, after forming a reinforcement diaphragm, then nanometer viscose glue is utilized by this reinforcement diaphragm to be adhered between two glass sheets to form laminated glass.CN101961943A discloses a kind of manufacture method of light-duty bulletproof glass, and the order according to former of face glass, polyurethane pellicle, methacrylate sheet, polyurethane pellicle, former of back-panel glass is superimposed.

Although above-mentioned bulletproof glass is lightweight, thin but its light transmittance, sound deadener/insulator are poor as the special bulletproof glass of specific use for thickness, and there is the situation that fragment splashes, be not suitable for the field such as aviation, ground forces' main battle weaponry.

Summary of the invention

The object of this invention is to provide a kind of bulletproof glass that is light-duty, that splash without fragment.

To achieve these goals, the present invention adopts following technical scheme.

A bulletproof glass that is light-duty, that splash without fragment, is made up of glass, film, glass, film, thermoplastic resin sheet material, film, thermoplastic resin sheet material successively;

Described glass is commercially available simple glass, and thickness is 3-12mm, preferred 4-7mm; The thickness of thermoplastic resin sheet material is 3-12mm, preferred 4-7mm; Film stock thickness is 0.5-3.5mm, preferred 0.6-1.3mm; Described thermoplastic resin sheet material is selected from the one in Merlon, polystyrene, lucite or polyethylene;

Described film is selected from the one in PVB film, EVA film, PS film, PA film or PU film; And two or three variety classes film selected by film described in same bulletproof glass.

The present invention also provides the preparation method of above-mentioned bulletproof glass, comprises the steps:

1) pretreatment of raw material

Original sheet glass and polyurethane plate are dried;

2) sheet is closed

Successively glass, film, glass, film, thermoplastic resin sheet material, film, thermoplastic resin sheet material are closed sheet;

3) precompressed exhaust

Composite after closing sheet is carried out precompressed exhaust;

4) high-pressure molding

After the complex material heat preservation pressurize after precompressed, cooling release, cool, go out still, obtain light-duty bulletproof glass.

In above-mentioned preparation method, the 60-80 DEG C of bake out temperature described in step 1), drying time 2-5h;

Step 2) in, described conjunction sheet temperature 18-25 DEG C, humid control is below 30%;

In step 3), described preload pressure 0.5-0.7MPa, temperature is 70-130 DEG C, vacuum 0.01-0.02MPa;

In step 4), described heat-insulation pressure keeping condition is: temperature 110-130 DEG C, pressure 1.0-1.5MPa, heat-insulation pressure keeping time 40-60min.

In bulletproof glass of the present invention, adopting dissimilar film between different plates, not only reduce costs and also improve ballistic performance, effectively preventing from occurring because being subject to the shooting of fierce body inner face splashing glass.Select specific sheet material and film as raw material, by specifically closing sheet order, and first heating the process of pressure-maintaining and heat-preservation after precompressed, obtaining the bulletproof glass being applicable to special dimension.

Bulletproof glass of the present invention, its thickness 18-24mm, light transmittance reaches 85%-90%, good flame resistance, sound insulation value is good, can anti-continuous 3 bullets of 79 formula 7.62mm light submachine gun, 10 meters of distances, explosion-proof is high, the secondary injury that can effectively prevent from bullet from passing glass and glass breaking causing human body.

Bulletproof glass prepared by the present invention, can be applicable to the aviation field of different performance requirement as fighter plane, attack plane and bomber bulletproof glass etc.; Ground forces are as panzer, tank, special purpose vehicle and command post, observation post, forward position bulletproof glass; Marine site is as naval vessels and submarine window etc.; The car etc. that automobile industry uses as ballproof cash truck, family; Building trade as prison, bank or other can suffer the place of gunslinging.

Detailed description of the invention

Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.

Embodiment 1

(1) raw material prepares: original sheet glass carries out cutting, clean and drying, for subsequent use; Polyurethane plate carries out cutting and drying, for subsequent use; Bake out temperature 65 DEG C, time 4h;

(2) sheet is closed: successively glass 5mm, PVB film 0.76mm, glass 5mm, PU film 1.26mm, PC sheet material 5mm, PU film 0.63mm, PC sheet material 4mm are closed sheet; Close sheet temperature 20 DEG C, humidity is 25%;

(3) precompressed exhaust: the composite after closing sheet is carried out precompressed exhaust; Precompressed temperature is 100 DEG C, the cylinder pressure 0.6MPa of rubber roll, vacuum 0.015MPa;

(4) high-pressure molding: send the composite after precompressed to autoclave, after heat-insulation pressure keeping 50min, cooling release, cool, go out still, obtain light-duty bulletproof glass, wherein, heat-insulation pressure keeping condition is: temperature 120 DEG C, pressure 1.1MPa.

After testing, bulletproof glass area 420 × 420mm, thickness 20.41mm, light transmittance 90%, fire resistance reaches B1 level, and sound insulation reaches 16.47dB, weight 6.32kg.

Embodiment 2

Bulletproof glass is prepared according to the method for embodiment 1.

Wherein in step 1), bake out temperature 75 DEG C, time 3h;

Step 2) in, close sheet temperature 18 DEG C, humid control is 25%;

Raw material closes sheet order: glass 5mm, EVA film 0.80mm, glass 6mm, PA film 0.70mm, PC sheet material 6mm, PU film 1.26mm, PC sheet material 4mm;

In step 3), described preload pressure 0.7MPa, temperature is 120 DEG C, vacuum 0.02MPa;

In step 4), described heat-insulation pressure keeping condition is: temperature 110 DEG C, pressure 1.5MPa, heat-insulation pressure keeping time 60min.

After testing, bulletproof glass area 420 × 420mm, thickness 22.84mm, light transmittance 87%, fire resistance reaches B1 level, and sound insulation reaches 18.83dB, weight 6.98kg.

Embodiment 3

Bulletproof glass is prepared according to the method for embodiment 1.

Wherein in step 1), bake out temperature 65 DEG C, time 4h;

Step 2) in, close sheet temperature 25 DEG C, humid control is 20%;

Raw material closes sheet order: glass 7mm, EVA film 0.62mm, glass 4mm, PA film 0.79mm, PC sheet material 7mm, PU film 1.26mm, PC sheet material 4mm;

In step 3), described preload pressure 0.5MPa, temperature is 70 DEG C, vacuum 0.01MPa;

In step 4), described heat-insulation pressure keeping condition is: temperature 130 DEG C, pressure 1.0MPa, heat-insulation pressure keeping time 40min.

After testing, bulletproof glass area 420 × 420mm, thickness 23.44mm, light transmittance 85%, fire resistance reaches B1 level, and sound insulation reaches 19.21dB, weight 7.03kg.

Experimental example

By traditional bulletproof glass example 1 in contrast, carry out contrast test with embodiment of the present invention 1-3 product, result is as shown in table 1.

Table 1 embodiment 1-3 and reference examples 1 Contrast on effect

As shown in Table 1, bulletproof glass property indices of the present invention is all better than reference examples 1, embodiment of the present invention 1-3 bulletproof glass is described, thickness is thin, light transmittance is high, sound insulation value is good, ballistic protection level and explosion-proof high, the secondary injury that can effectively prevent from bullet from passing glass and glass breaking causing human body.

Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements without departing from theon the basis of the spirit of the present invention, all belong to the scope of protection of present invention.

Claims (2)

1. the preparation method of bulletproof glass that is light-duty, that splash without fragment, it is characterized in that, step is as follows:

(1) raw material prepares: original sheet glass carries out cutting, clean and drying, for subsequent use; Polyurethane plate carries out cutting and drying, for subsequent use; Bake out temperature 65 DEG C, time 4h;

(2) sheet is closed: successively glass 5mm, PVB film 0.76mm, glass 5mm, PU film 1.26mm, PC sheet material 5mm, PU film 0.63mm, PC sheet material 4mm are closed sheet; Close sheet temperature 20 DEG C, humidity is 25%;

(3) precompressed exhaust: the composite after closing sheet is carried out precompressed exhaust; Precompressed temperature is 100 DEG C, the cylinder pressure 0.6MPa of rubber roll, vacuum 0.015MPa;

(4) high-pressure molding: send the composite after precompressed to autoclave, after heat-insulation pressure keeping 50min, cooling release, cool, go out still, obtain light-duty bulletproof glass, wherein, heat-insulation pressure keeping condition is: temperature 120 DEG C, pressure 1.1MPa.

2. the bulletproof glass that method described in a claim 1 is obtained.