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Impact resistant rigid composite and method of manufacture

A composite material and impact-resistant technology, applied in chemical instruments and methods, thin material handling, transportation and packaging, etc., can solve problems such as frequent production failures and interruptions, avoid sticking problems, improve manufacturing efficiency and economical effects

Inactive Publication Date: 2008-08-27
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, under these conditions of high temperature, pressure and time, the unitape sheets adhere not only to each other but also to the bias ply machine itself, causing frequent breakdowns and interruptions in production

Method used

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  • Impact resistant rigid composite and method of manufacture
  • Impact resistant rigid composite and method of manufacture
  • Impact resistant rigid composite and method of manufacture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Honeywell International Corporation under the trade name 225 1100 denier extended chain polyethylene yarns produced were fed from a creel to the impregnation process shown in FIG. 1 . The yarns were spread, straightened, and placed on a silicone-coated release paper. A matrix solution consisting of 5000 parts resin solution and 35 parts catalyst was applied to the uniaxial web. This resin solution, available from Dow Chemical Company, consisted of 64 wt% vinyl ester resin, 3 wt% diallyl phthalate, and 33 wt% methyl ethyl ketone. The catalyst was 2,5-dimethyl-2,5-bis(2-ethylhexanoylperoxy)hexane from Elf Atochem. The web is passed under a nip roll to spread the matrix solution and force the solution through and between the filaments of the yarns. The solvent in the matrix was allowed to dry by passing the web through a first oven at a temperature of 82°C. An elastomer solution (trade name available from 3M Company) was evenly sprayed onto the fiber web as discrete...

Embodiment 2

[0063] Embodiment 2 (comparison)

[0064] Continuous unitape rolls were produced as in Example 1 except that no elastomer was used, but other materials and conditions were all the same. The composition of the unitape was 81 wt% fiber and 19 wt% matrix. The first and second rolls of unitape were loaded onto the same bias ply machine as in Example 1.

[0065] Attempts at the unitape skew were made at consolidation temperatures ranging from room temperature up to 116°C. At lower temperatures, the unitape still adhered to the release paper and the weft and warp layers did not adhere to each other. Increasing the pressure between the layers did not improve adhesion. At 116°C, the matrix in the unitape became very soft and sticky. However, the adhesion between the layers was not greater than the adhesion of the unitape to the release paper. A number of temperatures were tried between 38°C and 116°C to confirm that the material would stick high enough to form a bias ply and ha...

Embodiment 3

[0070] For the composites of Example 1 and (comparative) Example 2, ballistic performance was tested as previously described. The result is as follows:

[0071] Example 1

[0072] It can be seen that the specific energy absorption (SEAC) of the composite material of the present invention exceeds that of the prior art material by 13.8%.

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Abstract

An impact resistant rigid composite has a plurality of fibrous layers, each of which comprise a network of filaments. The fibrous layers are disposed in a matrix, with elastomeric layer(s) therebetween. Prior to curing of the matrix, successive fibrous layers exhibit therebetween a peel resistance of at least about 3 g(cm. The composite has high rigidity combined with superior ballistic properties. When bonded at one or both surfaces to a hard plate selected from the group consisting of metals and ceramics, the composite affords increased protection against armor piercing projectiles.

Description

technical field [0001] The present invention relates to a rigid, fiber-reinforced composite material with improved impact and ballistic properties, its precursor components, and its method of manufacture. Background technique [0002] Various configurations are known for composite materials used in impact and ballistic resistant items such as helmet pockets, panels, and vests. These composites exhibit varying degrees of resistance to high velocity impact penetration from projectiles such as BBs, bullets, shells, shrapnel, glass shards, and the like. 美国专利Nos.5,587,230;5,552,208;5,330,820;5,196,252;5,190,802;5,187,023;5,185,195;5,175,040;5,167,876;5,165,989;5,124,195;5,112,667;5,061,545;5,006,390;4,953,234;4,916,000;4,883,700;4,820,568;4,748,064;4,737,402;4,737,401;4,681,792;4,650,710; 4,623,574; 4,613,535; 4,584,347; 4,563,392; 4,543,286; 4,501,856; Non-Apparel Systems", a 1984 publication by E.I. DuPont De Nemous International S.A., describes ballistic resistant composites ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B5/06B32B5/28F41H5/04B29B15/08B29C70/08B29C70/50B29K101/00B32B5/26B32B15/08B32B18/00B32B25/10
CPCB32B5/26F41H5/0428B29C70/50F41H5/0478F41H5/0457B29C70/088Y10T428/24091Y10T428/24124Y10T442/2615Y10T442/2623Y10T428/249924Y10T428/24994Y10T442/60B32B5/06
Inventor A·巴特纳加B·D·阿维森
Owner HONEYWELL INT INC
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