Bulletproof plate of high strength polyurethane/fiber/ceramic structure

A polyurethane, high-strength technology, applied to the structure of armor plates, protective equipment, armor, etc., can solve problems such as weak, cold surfaces, and cracked ceramic plates

Inactive Publication Date: 2019-02-22
长沙盾甲新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the composite method of bulletproof inserts is mostly made by directly bonding the whole ceramic plate and the high-performance fiber fabric laminate through an adhesive, or directly bonding small pieces of spliced ​​ceramics to the fiber fabric laminate; After the impact, it is very easy to cause the overall fragmentation of the ceramic plate, which affects the bulletproof effect; and the bulletproof insert prepared by the latter is partially weak due to the gap between the ceramic sheets. When the bulletproof insert is impacted by the bullet, it is easy to cause the bullet. run th...

Method used

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  • Bulletproof plate of high strength polyurethane/fiber/ceramic structure
  • Bulletproof plate of high strength polyurethane/fiber/ceramic structure
  • Bulletproof plate of high strength polyurethane/fiber/ceramic structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The contents of each raw material in component A and component B in this embodiment are shown in Table 1.

[0052] (1) Carry out vacuum dehydration process to 30 weight parts of polyoxypropylene diols, polyoxypropylene diols after dehydration and 61 weight parts of diphenylmethane diisocyanates, 9 weight parts of dioctyl phthalates in inert gas In the atmosphere, react at 35°C for 6h, cool and discharge to obtain component A;

[0053] (2) 30 parts by weight of polyether diamine, 44 parts by weight of diethyltoluenediamine, and 25.95 parts by weight of hydroxyl silicone oil are dehydrated under reduced pressure in a reaction kettle, and then 0.05 parts by weight of dibutyltin dilaurate are added, Stir at 35° C. for 4 h, ultrasonicate for 30 min, cool and discharge to obtain Component B.

[0054] Table 1: Content of each raw material in component A and component B in embodiment 1

[0055]

Embodiment 2

[0057] The contents of each raw material in component A and component B in this embodiment are shown in Table 2.

[0058] (1) Carry out vacuum dehydration treatment to 59.7 parts by weight of polytetrahydrofuran diol, polytetrahydrofuran diol after dehydration and 30 parts by weight of toluene diisocyanate, 10.3 parts by weight of butyl phthalate in an inert gas atmosphere, at 100 ℃ The reaction was carried out for 2 hours, cooled and discharged to obtain component A;

[0059] (2) 60 parts by weight of polyether triamine, 28.2 parts by weight of 4,4'-bis-sec-butylaminodiphenylmethane, and 11 parts by weight of polytetrafluoroethylene micropowder were dehydrated under reduced pressure in a reactor, and then added 0.8 parts by weight of stannous chloride, stirred at 80° C. for 1 hour, ultrasonicated for 5 minutes, cooled and discharged to obtain Component B.

[0060] Table 2: Content of each raw material in component A and component B in embodiment 2

[0061]

Embodiment 3

[0063] The contents of each raw material in component A and component B in this embodiment are shown in Table 3.

[0064] (1) Carry out vacuum dehydration treatment to 48 parts by weight of tetrahydrofuran-oxypropylene glycol, and dehydrated tetrahydrofuran-oxypropylene glycol with 49 parts by weight of dicyclohexylmethane diisocyanate and 3 parts by weight of propylene carbonate in an inert gas atmosphere , reacted at 85°C for 3h, cooled and discharged to obtain component A;

[0065] (2) 45.5 parts by weight of polyether diamine, 20 parts by weight of azodicarbonamide, and 34 parts by weight of graphene oxide were dehydrated under reduced pressure in a reaction kettle, and then 0.5 parts by weight of stannous octoate was added, and at 60° C. Stir for 2 hours, ultrasonic for 15 minutes, then cool and discharge to obtain component B.

[0066] Table 3: Content of each raw material in component A and component B in embodiment 3

[0067]

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Abstract

The invention relates to the field of bulletproof equipment and discloses a bulletproof plate of a high strength polyurethane/fiber/ceramic structure. The bulletproof plate comprises an inner layer and a coating layer. The inner layer comprises a ceramic bulletproof plate (1) and a fiber cloth laminated plate (2). The coating layer coats the outer side of the inner layer. Polyurethane coating layers (4) of different thicknesses are coated to different surfaces of a fiber cloth coating layer (3). Human tissues and bones of a wearer are prevented from being damaged effectively. The adjacent bulletproof plates fit tightly, so that local weakness caused by gaps among the bulletproof plates is prevented effectively. The polyurethane material coated to the outer surface resists atrocious weatherand environments effectively, so that the service performance of the buffet plate is improved.

Description

technical field [0001] The invention relates to the field of bulletproof equipment, in particular to a high-strength polyurethane / fiber / ceramic structure bulletproof plate. Background technique [0002] At present, the composite method of bulletproof inserts is mostly made by directly bonding the whole ceramic plate and the high-performance fiber fabric laminate through an adhesive, or directly bonding small pieces of spliced ​​ceramics to the fiber fabric laminate; After the impact, it is very easy to cause the overall fragmentation of the ceramic plate, which affects the bulletproof effect; and the bulletproof insert prepared by the latter is partially weak due to the gap between the ceramic sheets. When the bulletproof insert is impacted by the bullet, it is easy to cause the bullet. run through. [0003] In combat operations, individual protective plates need to be worn on soldiers to enter and exit various battlefield environments. It is easy to encounter harsh weather...

Claims

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Application Information

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IPC IPC(8): F41H5/04
CPCF41H5/0428
Inventor 雷静裘航盛
Owner 长沙盾甲新材料科技有限公司
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