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Preparation method of anti-sinking material in body armor

An anti-sag, bulletproof vest technology, used in protective equipment, offensive equipment, personnel protection equipment and other directions, can solve the problem of the heavy weight of the buffer layer PC board and lack of ballistic resistance.

Inactive Publication Date: 2015-11-25
BEIJING AEROSPACE RATE MECHANICAL & ELECTRICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as people's requirements for body armor comfort and light weight are increasing day by day, the commonly used buffer layer PC board is heavy in weight and does not have bulletproof performance. Therefore, a buffer layer with bulletproof performance and weight advantage is developed. Has important application value

Method used

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  • Preparation method of anti-sinking material in body armor
  • Preparation method of anti-sinking material in body armor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Preparation of aramid anti-sag material

[0015] Prepare 1000g of water-based epoxy resin adhesive with a solid content of 30%, add 30g of triethanolamine curing agent, stir evenly, and put it into the glue tank; the aramid fiber is obtained through the glue tank, yarn spreading and drying process [0° / 90° [0 ° / 90°, 0° / 90°] in the press molding machine, the pressure is 5MPa, the temperature is 100°C, the pressing time is 15min, and finally the sample is cold pressed in the normal temperature press molding machine for 20min, The sample taken out is the anti-sag material 1, and the bulletproof test is carried out on this material. The results are shown in Table 1.

Embodiment 2

[0017] Preparation of aramid anti-sag material

[0018] Prepare 1000g of water-based polyurethane adhesive with a solid content of 40%, add 20g of isocyanate curing agent, stir evenly, and put it into the glue tank; the aramid fiber is made of [0° / 90°] double Laminated aramid non-weft fabric; remove the backing film from the woven aramid non-weft fabric, cut into several pieces of 40cm×40cm sheet-like non-weft fabric, select 2 layers of sheet-like non-weft fabric, and use [0° / 90 °, 0° / 90°] in the press molding machine, the pressure is 5MPa, the temperature is 120°C, and the pressing time is 15min. Finally, the sample is cold-pressed in the normal temperature pressure molding machine for 20min, and the sample is taken out. That is, the anti-sag material 2, the bullet resistance test was carried out on this material, and the results are shown in Table 1.

Embodiment 3

[0020] Preparation of aramid anti-sag material

[0021] The water-based epoxy resin and water-based polyurethane adhesive were prepared in a ratio of 2:1 to prepare 1000 g of an adhesive with a solid content of 35%, add 15 g of triethanolamine curing agent, stir evenly, and put it into the glue tank; [0° / 90°] double-layered aramid non-woven fabric was obtained in the drying process; the woven aramid non-woven fabric was removed from the bottom film, and cut into a number of sheet-like non-woven fabrics of 40cm×40cm, and 2 The layered non-woven fabric is placed in a press molding machine in the manner of [0° / 90°, 0° / 90°], the pressure is 7MPa, the temperature is 120°C, and the pressing time is 15min. Finally, the sample is placed at room temperature. After 20 minutes of cold pressing in the pressure molding machine, the sample taken out is the anti-sag material 3, and the bullet resistance test is carried out on this material. The results are shown in Table 1.

[0022] The ant...

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Abstract

The invention relates to a preparation method of an anti-sinking material in a body armor, wherein aramid fibers are infiltrated in an adhesive at first and then made into aramid fiber weft-free cloth through weaving processes including filament expansion and drying, and then the anti-sinking material is prepared under technological parameters including a certain pressure, a certain temperature and certain time. By the preparation method, a buffer layer in a body armor component can realize certain anti-bullet effect and is also obviously lighter than a PC plate used at present, so a good technical foundation can be laid for realizing high comfort and light weight of the body armor.

Description

Technical field: [0001] The invention relates to a preparation method of an anti-sag material, and further relates to a preparation of a buffer layer in a soft body armor. Background technique: [0002] According to the national standard GA141-2010 bulletproof vest standard, the bulletproof layer components of the bulletproof vest include a bulletproof layer, a buffer layer and a bulletproof layer protective cover. The buffer layer is placed behind the bulletproof layer to reduce the impact of the blocked warhead on the human body. Structures that cause blunt trauma. Because the function of the buffer layer is to reduce the dent depth in the ballistic test, it is also called anti-dent material. [0003] With the development of material science and technology, soft body armor made of high-performance fibers is favored by users because of its comfort, light weight and flexibility. The ballistic performance is still the primary performance requirement of bulletproof vests. It...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/645D04H1/559D04H1/587D04H1/4291D04H1/4342F41H1/02
Inventor 许冬梅方心灵吴中伟刘元坤艾青松张静陈虹潘智勇
Owner BEIJING AEROSPACE RATE MECHANICAL & ELECTRICAL ENG CO LTD
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