Novel high-strength polycarbonate laminated bullet-proof plate and production method thereof

Abstract

The invention discloses a novel high-strength polycarbonate laminated bullet-proof plate. The high-strength polycarbonate laminated bullet-proof plate is formed by one-step press fit of two PC (polycarbonate) plates and an adhesive film between the PC plates. The PC plates refer to high-strength PC plates with the thickness of 0.2-20mm. The adhesive film refers to an adhesive film, 0.3-3mm in thickness, with a carbamate structure. A production method of the novel high-strength polycarbonate laminated bullet-proof plate includes selecting, by weight, 97 parts of polycarbonate powder with the mass melt index of 2-5g / 10 min, adding, by weight, 3 parts of flexibilizers, performing granulation by a double-screw extruder, producing the PC plates from granules, performing drying before extruding, performing PC plate forming after raw material drying, applying a neutral PE protection film to protect the surfaces of the formed PC plates from being scratched, and performing surface wear-resistant treatment after press fit of the laminated bullet-proof plate. The laminated bullet-proof plate can completely meet transparence requirements of bullet-proof plates, the obtained laminated bullet-proof plate has low mass, and the haze value is smaller than 1% and meets application requirements.

Description

technical field [0001] The invention belongs to the technical field of polymer resin bulletproof boards, and in particular relates to a novel high-strength polycarbonate laminated bulletproof board and a preparation method thereof. Background technique [0002] Polycarbonate sheet, also known as PC board, is a kind of polymer resin building lighting sheet, which has excellent characteristics such as high temperature resistance, strong weather resistance, high light transmittance, etc., and is now widely used in the lighting of large buildings and agricultural planting fields Lighting and heat preservation in the manufacturing industry, protective facilities in the manufacturing industry, sound insulation facilities in the transportation industry, protection and lighting panels in the advertising industry, etc. The excellent impact resistance of PC boards is 250 to 300 times that of ordinary glass, so PC boards can be used as police Shields are used for explosion protection, ...

AI Technical Summary

Problems solved by technology

[0002] Polycarbonate sheet, also known as PC board, is a kind of polymer resin building lighting sheet, which has excellent characteristics such as high temperature resistance, strong weather resistance, high light transmittance, etc., and is now widely used in the lighting of large buildings and agricultural planting fields Lighting and heat preservation in the manufacturing industry, protective facilities in the manufacturing industry, sound insulation facilities in the transportation industry, protection and lighting panels in the advertising industry, etc. The excellent impact resistance of PC boards is 250 to 300 times that of ordinary glass, so PC boards can be used as police Shields are used for explosion protection, but relying on a single-layer ordinary PC board alone cannot meet the bulletproof requirements of firearms

At present, the common practice in the market in the existing technology is: when directly increasing the thickness of the PC board to meet the bulletproof requirements, it will be limited by the production conditions, and it is difficult to produce an optical-grade PC board with a thickness of more than 18mm, which cannot meet the perspective requirements.

At the same time, some bulletproof materials made of glass can be seen on the market. The density of glass is more than twice the density of PC materials, so the bulletproof board made of glass is too bulky.

There are still some laminated bulletproof panels made of glass or PC materials on the market, and the haze value of the laminated bulletproof panels in the prior art is difficult to reach within 3%.