Method for producing bulletproof material

A manufacturing process and bulletproof technology, which is applied in the field of composite material manufacturing, can solve problems such as interlayer air bubbles that cannot be eliminated, one-sided extrusion damage, and materials that cannot be completely shaped, and achieve the effect of reducing air bubbles and one-sided extrusion damage and stable performance

Active Publication Date: 2012-05-09
BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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  • Description
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AI Technical Summary

Problems solved by technology

[0005] At present, the relatively mature lamination shaping process in China is mostly the upper and lower roller pressurization shaping process. This process has some disadvantages in actual production, such as performance defects such as incomplete shaping of the material, unstable performance after shaping; and layer Appearance defects such as air bubbles that cannot be excluded, severe one-sided extrusion damage, etc.

Method used

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  • Method for producing bulletproof material
  • Method for producing bulletproof material
  • Method for producing bulletproof material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] In this example, the third embodiment of the present invention described above is used.

[0098] The raw material is a continuous polyethylene fiber non-weft fabric coil (UD coil material) after orthogonal lamination, that is, a polyethylene fiber orthogonal non-weft fabric wound on a roller, with a width of 1.25m and a surface density of 130±8g / m 2 . The shaping process adopts the process method described in the present invention, and simultaneously heat-presses 4 polyethylene fiber orthogonal non-weft cloth layers, and the unwinding method is selected as active unwinding, the predetermined length is 1.20m, and the pressing temperature is 110 ± 2°C, the initial stage pressure is 3MPa, and the time is 5-10s; the pressure of the holding stage is 23MPa, and the time is 80-100s; Wherein, just before the thermocompression molding starts, the polyethylene fiber orthogonal non-weft fabric that is unwound is pulled to the unfolded state by traction force; The bulletproof m...

Embodiment 2

[0102] In this example, the second embodiment of the present invention described above is used.

[0103] The material used in this example is a continuous UD coil after orthogonal lamination, with a width of 1.25m and a surface density of 130±8g / m 2 . The shaping process adopts the process method described in the present invention to press a polyethylene fiber orthogonal non-weft cloth, select the unwinding method as passive unwinding, the predetermined length is 0.65m, the temperature is 110±2°C, and the initial stage pressure 3MPa oil pressure, time 5s, holding section pressure 23MPa oil pressure, time 60-80s, shaping section pressure 10MPa oil pressure, time 10s, average production speed 0.78m / min. The bulletproof performance parameter V50 of the bulletproof material produced in Example 2 is 495m / s. For specific test data, please refer to Table 1.

[0104] The bullet-proof material obtained in this embodiment can be completely shaped, and the performance is stable after ...

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Abstract

The invention provides a method for producing a bulletproof material. The bulletproof material production method comprises the following steps: a) polyethylene fiber orthogonal no-woven cloth is unwound from a roller wound with the polyethylene fiber orthogonal no-woven cloth to predetermined length; b) the unwound polyethylene fiber orthogonal no-woven cloth is drawn to the predetermined length; c) under the predetermined compressing temperature, pressure and time, by using a platen press, the polyethylene fiber orthogonal no-woven cloth is subjected to hot pressing to form the bulletproof material, wherein, before the hot pressing is carried out, the unwound polyethylene fiber orthogonal no-woven cloth is drawn to an expansion state; and the step a)-step c) are repeated. According to the invention, the method for producing the bulletproof material enables complete fixing, the performance after fixing is stable, and bubbles as well as surface extrusion and damage can be reduced.

Description

technical field [0001] The invention relates to a manufacturing process of a bulletproof material, which belongs to the field of composite material manufacturing. Background technique [0002] The bulletproof material prepared by polyethylene fiber continuous non-weft cloth (UD) is a new type of protective material. The product has soft texture, light specific gravity, water resistance, moisture resistance, chemical corrosion resistance, and ultraviolet radiation resistance. It is widely used in light bulletproof vests , breastplates, ballistic helmets, riot shields, light hard armor and blast isolation devices. It is gradually replacing traditional protective materials as the main material for human protection. [0003] The bulletproof material prepared by polyethylene fiber continuous non-weft cloth (UD) belongs to the field of fiber composite material. The most basic composition of polyethylene fiber continuous non-weft fabric (UD) in the present invention is polyethyle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B27/02F41H1/02
Inventor 魏广恒徐喜成季力强冯向阳李晓洁
Owner BEIJING TONGYIZHONG NEW MATERIAL TECH CORP
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