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Bulletproof articles including belts

A technology of products and bulletproof molds, which is applied in the direction of protective clothing, protective equipment, protective equipment, etc.

Active Publication Date: 2016-06-22
TEIJIN ARAMID BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] While the above references describe ballistic resistant materials with good properties, there is still room for improvement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0120] The bulletproof material according to the present invention is produced in the following manner.

[0121] The panels were manufactured by weaving ultra-high molecular weight polyethylene tapes in a plain weave. The tape used as warp had a width of 20 mm and a thickness of 64 microns. These tapes had a tensile strength of 1.81 GPa, a tensile modulus of 100 GPa, and an elongation at break of 1.86%. The molecular weight Mw of polyethylene is 3.6×10 6 g / mol with a Mw / Mn ratio of 8.3. The tapes used as weft yarns had a width of 25 mm, but were otherwise identical.

[0122] The plates are laminated without a matrix material. The stack was laminated at a pressure of 60 bar at a temperature of 136-137°C. The material is cooled and removed from the press to form ballistic resistant moldings. Panel has 3.4kg / m 2 weight per unit area. According to NIJIIIA0.101.04, the ballistic performance of the board was tested at a bullet velocity of 530m / s. The bullet energy is 2.19kJ...

example 2

[0124] Example 1 was repeated except that the substrate was applied in a uniform layer on the board prior to lamination. The matrix material used was Prinlin B7137AL commercially available from Henkel. Panel has 3.4kg / m 2 The weight per unit area and 4% (weight percent) of the matrix content.

[0125] According to NIJIIIA0.101.04, the ballistic performance of the board was tested at a bullet speed of 523m / s. The bullet energy is 2.13kJ and the SEA is 628Jm2 / kg.

example 3

[0127] The bulletproof material according to the present invention is produced in the following manner.

[0128] The panels were fabricated by plain weaving ultra-high molecular weight polyethylene tapes. The tape used had a width of 40 mm, and a thickness of 64 microns. These tapes had a tensile strength of 2.2 GPa, a tensile modulus of 148 GPa, and an elongation at break of 1.7%. The molecular weight Mw of the polyethylene is 4.3×10 6 g / mol with a Mw / Mn ratio of 9.8. Use the same tape for the weft and warp.

[0129] The substrate is applied to the woven board in an even layer. The matrix material used was Prinlin B7137AL commercially available from Henkel. The plates were stacked and the stack was laminated at a pressure of 60 bar and a temperature of 130-134°C. The material is cooled and removed from the press to form ballistic-resistant moldings. Panel has 17.4kg / m 2 The weight per unit area and 4% (weight percent) of the matrix content.

[0130] According to NIJI...

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Abstract

Ballistic resistant molding comprising a laminated stack of panels comprising strips of reinforcing material, characterized in that at least one panel comprises woven strips as weft and warp threads, at least some of which have a width of at least 10 mm. A method of producing the ballistic-resistant molding is also claimed.

Description

technical field [0001] The present invention relates to ballistic resistant articles comprising tapes and methods for their manufacture. Background technique [0002] Ballistic resistant articles including belts are well known in the art. [0003] WO2006 / 107197 describes a method for the manufacture of polymer tape stacks in which a core-clad polymer tape is used, wherein the core material has a higher melting point than the cladding material, the method comprising biasing The steps of polymer tape, positioning polymer tape and consolidating polymer tape to obtain stack. [0004] EP1627719 describes a ballistic resistant article consisting essentially of ultra-high molecular weight polyethylene comprising a plurality of unidirectionally oriented Polyethylene board. [0005] WO2008 / 040506 describes a process for manufacturing a stack consisting of at least two polymer tape monolayers, wherein a first parallel unidirectional tape monolayer is formed and a second parallel un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B3/10B32B27/08F41H5/04A41D31/00
CPCB32B5/024B32B5/10B32B5/22B32B5/26B32B2250/20B32B2255/02B32B2255/26B32B2260/021B32B2260/046B32B2262/0253B32B2307/50B32B2307/51B32B2307/514B32B2307/54B32B2307/704B32B2307/718B32B2571/02D03D15/46F41H5/0471
Inventor M·W·M·G·彼得斯E·M·温克勒M·J·G·朱尼A·P·德韦杰尔
Owner TEIJIN ARAMID BV