CN109795132A - A kind of preparation method of bulletproof halmet - Google Patents
A kind of preparation method of bulletproof halmet Download PDFInfo
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- CN109795132A CN109795132A CN201711140410.6A CN201711140410A CN109795132A CN 109795132 A CN109795132 A CN 109795132A CN 201711140410 A CN201711140410 A CN 201711140410A CN 109795132 A CN109795132 A CN 109795132A
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Abstract
The present invention provides a kind of preparation methods of bulletproof halmet, it the described method comprises the following steps: with ultra high molecular weight polyethylene fiber and carbon fiber for basic material, take high-performance toughened resin as the bonding agent of two kinds of basic materials, is then adsorbed by high-temperature vacuum, the method that hot pressing is integrally formed or ultra high molecular weight polyethylene fiber, carbon fiber are separately formed rear gluing forms entirety；Wherein basic material distribution mode are as follows: bullet face be ultra high molecular weight polyethylene fiber, carry on the back convex blocking surface be carbon fiber, the ultra high molecular weight polyethylene fiber is 50-56 layers total, and carbon fiber is 7-12 layers total；Bulletproof halmet anti-penetration performance obtained by preparation method of the present invention is high, and effectively low can carry on the back convex amount secondary injury caused by head, and light weight, and ballistic protection level is high.
Description
Technical field
The present invention relates to bulletproof halmet fields, and in particular to a kind of preparation method of bulletproof halmet.
Background technique
The helmet is a kind of individual soldier protection harness for making head escape injury, and is analyzed according to related data, the wound on battlefield
Die most of caused by elastic slice, and the injures and deaths on battlefield can be effectively reduced in bulletproof halmet.Relevant department, Britain studies have shown that
5% injury rate and 19% percentage of killed in action can be reduced by wearing bulletproof halmet.U.S. army also indicates that steel helmet is at least in the statistics of World War II
Protect the life of 70,000 soldier of the U.S..The modern military helmet experienced the development from steel helmet to fibre reinforced composites
Journey.In the nonmetallic helmet type of fiber-reinforced composite, mainly there are the glass fibre helmet, polyamide fibre.
The high-performance fiber that the material that bulletproof halmet uses industrializes at present, is mass produced mainly has the fragrant adoption of contraposition
Nylon (aramid fiber), ultra high molecular weight polyethylene fiber and Carbon fibe.The specific strength and specific modulus of aramid fiber are steel
10 times of iron, and the specific strength of ultra high molecular weight polyethylene fiber is higher by 1.5 times of aramid fiber or so.Single fiber or synnema
Shellproof effect can not be played, fiber is arranged according to certain rules only and is integrated, could effectively resist bullet or
The injury of fragment.It integrates fiber is regular at present there are mainly two types of approach, woven fabric and laminated cloth.The former is by knitting
Machine is woven, and the latter is made of then by special unidirectional combination process.And ultra high molecular weight polyethylene fiber is as shellproof
The helmet is mostly laminated cloth.Ballistic fiber develops to high intensity, high-modulus, fine-denier direction always, and fiber is thinner, manufactured anti-
It plays clothing and gets over soft comfortable.
Ultra high molecular weight polyethylene fiber is spinned by polyethylene (average molecular weight is 1,000,000 or more), is after aramid fiber
Another high-intensitive, high modulus fibre occurred after fiber, density is low, toughness is strong, good corrosion resistance, the molecular structure degree of orientation
Height has antiballistic characteristics more superior than aramid fiber, therefore ultra high molecular weight polyethylene fiber is production ballistic composite
Optimal material.But polyethylene fibre itself also has the shortcomings that inevitable, fusing point is lower, the mechanical property under hot environment
Can be poor, being applied on bullet resistant material can cause to carry on the back the biggish bulge problem in bullet face, so simple ultra high molecular weight polyethylene fiber
There are still the aspects that needs improve for the ballistic performance of composite material.
Carbon fiber has both the strong stretching resistance of carbon material and the big feature of fiber softening machinability two, is that a kind of mechanical property is excellent
Different new material.Carbon fiber tensile strength is about 2 to 7GPa, and stretch modulus is about 200 to 700GPa.Density is about 1.5 to 2.0
Gram per cubic centimeter, this is except there is the temperature for depending mainly on charing process outside the Pass with precursor structure.It is general to pass through 3000 DEG C of high temperature
Graphitization processing, density is up to 2.0 grams every cube li.Along with its very light in weight, its specific gravity is also lighter than aluminium, less than steel
1/4, specific strength is 20 times of iron.The thermal expansion coefficient of carbon fiber is different from other fibers, it has the characteristics of anisotropy.Carbon
The specific heat capacity of fiber is generally 7.12.Thermal conductivity increases with temperature and declines that be parallel to machine direction be that (0.72 arrives negative value
It 0.90) is, positive value (32 to 22) perpendicular to machine direction.The specific resistance of carbon fiber and the type of fiber are related, at 25 DEG C,
High-modulus is 775, and high-strength carbon fiber is per cm 1500.It is highest that this has carbon fiber in all high-performance fibers
Specific strength and specific modulus.Compared with the metal materials such as titanium, steel, aluminium, carbon fiber in physical property have intensity is big, modulus is high,
The features such as density is low, linear expansion coefficient is small,
Bulletproof composite material and bulletproof halmet are fastened on by various fabrics in specific weaving or special auxiliary agent
Together, or by laminated cloth multilayer build-up glue connection.Its shellproof principle is different from the hard ballistic helmet, and the hard ballistic helmet is benefit
With the hardness of itself, change the shape of bullet or fragment, reduces kinetic energy, play the role of shellproof.Fabric then mainly passes through
The deformation of fiber absorbs energy to reach shellproof purpose.When bullet or fragment hit fabric, the mode of destruction has stretching broken
Bad and two kinds of power of failure by shear.The generation of both power is mainly related with the shape of bullet or fragment, material, speed, and head is in
When the bullet of cone injects fabric, mainly based on tensile failure；And fragmentation irregular for high speed, then with failure by shear
Based on.
Based on the above research background, on the basis of ultra high molecular weight polyethylene fiber antiballistic characteristics, mixed carbon fibre material
Expect characteristic, and by research and development, the preparation method of the optimization helmet, becomes the effective ways for promoting bulletproof halmet ballistic performance.
Summary of the invention
The purpose of the present invention is to provide a kind of preparation method of bulletproof halmet, obtained bulletproof halmet anti-penetration performance
Height, and effectively low convex amount secondary injury caused by head, and light weight can be carried on the back, ballistic protection level is high.
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of preparation method of bulletproof halmet, comprising the following steps: be with ultra high molecular weight polyethylene fiber and carbon fiber
Basic material take high-performance toughened resin as the bonding agent of two kinds of basic materials, then whole by high-temperature vacuum absorption, hot pressing
The method that molding or ultra high molecular weight polyethylene fiber, carbon fiber are separately formed rear gluing forms entirety；Wherein basic material point
Mode for cloth are as follows: bullet face be ultra high molecular weight polyethylene fiber, carry on the back convex blocking surface be carbon fiber, the ultra-high molecular weight polyethylene
Fiber is 50-56 layers total, and carbon fiber is 7-12 layers total.
Preferably, the high-performance toughened resin be high-toughness epoxy resin, thermoplastic polyurethane, heat-curable urethane,
One of thermoplastic polyolefin plastics, thermoplastic poly esters plastics.It is highly preferred that the high-performance toughened resin is high tenacity
Epoxy resin.
Preferably, the ultra high molecular weight polyethylene fiber number of plies is 53 layers, and the carbon fiber number of plies is 9 layers.
Preferably, the ultra high molecular weight polyethylene fiber laying is by 90 degree and 0 degree of mutually overlapping 50-56 layers of laying；Carbon
Fiber laying mutually overlaps with 0 degree by 90 degree and is laid with 7-12 layers, or staggeredly mutually overlaps by 45 degree and be laid with 7-12 layers.
Preferably, the bulletproof halmet forms entirety, the preparation method of bulletproof halmet by the method that high-temperature vacuum adsorbs
Specifically includes the following steps: after the completion of ultra high molecular weight polyethylene fiber and carbon fiber laying, in ultra-high molecular weight polyethylene fibre
Dimension and carbon fiber laying binding site brushing high-performance toughened resin, the good tablet of laying are placed on helmet mold, use is resistance to
High-temperature vacuum bag wraps up the good tablet of laying, is vacuumized, and keeps vacuum pressure in 0.8~1.5MPA, is placed in curing oven,
It 120~130 DEG C of temperature, is kept for 90 minutes.
Preferably, the bulletproof halmet forms entirety, the preparation method of bulletproof halmet by the integrally formed method of hot pressing
Specifically includes the following steps: after the completion of ultra high molecular weight polyethylene fiber and carbon fiber laying, in ultra-high molecular weight polyethylene fibre
Dimension and carbon fiber laying binding site brushing high-performance toughened resin, the good tablet of laying is placed on helmet mold, uses 300
Ton vulcanizing press pressure forming keeps pressure in 15~17Kg, 120~130 DEG C of temperature, is kept for 90 minutes, stripping forming.
Preferably, the bulletproof halmet is separately formed the side of rear gluing by ultra high molecular weight polyethylene fiber, carbon fiber
Method forms entirety, the preparation method of bulletproof halmet specifically includes the following steps:
(1) separately formed on mold after the completion of ultra high molecular weight polyethylene fiber laying, 120~130 DEG C of temperature, pressure
Power is 15~17Kg, molding time 90 minutes, forms the ultra high molecular weight polyethylene fiber helmet；
(2) separately formed on mold after the completion of carbon fiber laying, 120~130 DEG C of temperature, pressure is 12~15Kg, at
The type time 90 minutes, form the carbon fiber helmet；
(3) the carbon fiber helmet outer surface in step (2) is uniformly brushed to the high-performance toughened resin glue with a thickness of 0.3mm
Layer, by step (1) the ultra high molecular weight polyethylene fiber helmet and the carbon fiber helmet to carry out positioning glued, pressure 7~
10Kg solidifies at 80~100 DEG C of temperature, forms new combination.
The beneficial effects of the present invention are:
The present invention is combined in the present invention by choosing ultra high molecular weight polyethylene fiber and carbon fiber as basic material
Preparation method makes the bulletproof halmet of production under the premise of guaranteeing smaller surface density, improves the anti-of the conventional composite materials helmet
Penetration performance, while the convex amount secondary injury caused by head of back can be reduced again.
The present invention solves the problems, such as that the convex amount of back of existing bulletproof halmet is big, under same shellproof protection level, carries on the back convex amount extremely
2mm. is reduced less
In same protection level, it can accomplish product lightweight, at this stage product weight 1.68Kg, using the newly developed helmet
1.51Kg, loss of weight 11.25%.
In same product weight, there can be 2 grades to be increased to 3 grades the protection level of product.
In actual use, under equivalent weight, the helmet ballistic protection level being prepared by preparation method of the present invention is higher than
Existing bulletproof halmet, under same ballistic protection level, bulletproof halmet of the present invention can accomplish that weight is lighter.
The novel ballistic composite of research and development simultaneously, can be widely applied in army and public security system organized equipment: individual soldier
Flak jackets, operation Protective Boots, bulletproof helmet for military use, fortification defence, vehicle defence, equipment defence etc. greatly mitigate individual soldier and set
Standby load weight, improves the maneuverability and survival ability of combat unit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment 1:
A kind of preparation method of bulletproof halmet, comprising the following steps:
(1) basic material ultra high molecular weight polyethylene fiber and carbon fiber are subjected to laying respectively, wherein super high molecular weight
Polyethylene fibre laying is by 90 degree and 0 degree of mutually overlapping 53 layers of laying；Carbon fiber laying is by 90 degree and 0 degree of mutually overlapping laying 9
Layer；Wherein basic material distribution mode are as follows: bullet face be ultra high molecular weight polyethylene fiber, carry on the back convex blocking surface be carbon fiber；
(2) after the completion of laying, in ultra high molecular weight polyethylene fiber and carbon fiber laying binding site brushing high tenacity ring
The good tablet of laying is placed on helmet mold by oxygen resin, using the good tablet of high temperature resistant vacuum bag package laying, take out true
Sky, keep vacuum pressure in 0.8~1.5MPA, be placed in curing oven, 120~130 DEG C of temperature, keep 90 minutes to get.
Embodiment 2:
A kind of preparation method of bulletproof halmet, comprising the following steps:
(1) basic material ultra high molecular weight polyethylene fiber and carbon fiber are subjected to laying respectively, wherein super high molecular weight
Polyethylene fibre laying is by 90 degree and 0 degree of mutually overlapping 56 layers of laying；Carbon fiber laying is by 45 degree of staggeredly mutually overlapping layings 7
Layer；The wherein distribution mode of basic material are as follows: bullet face be ultra high molecular weight polyethylene fiber, carry on the back convex blocking surface be carbon fiber；
(2) after the completion of laying, in ultra high molecular weight polyethylene fiber and carbon fiber laying binding site brushing high tenacity ring
The good tablet of laying is placed on helmet mold by oxygen resin, using 300 tons of vulcanizing press pressure formings, keeps pressure 15
~17Kg, 120~130 DEG C of temperature, keep 90 minutes, stripping forming to get.
Embodiment 3:
A kind of preparation method of bulletproof halmet, comprising the following steps:
(1) ultra high molecular weight polyethylene fiber laying is by 90 degree and 0 degree of mutually overlapping 50 layers of laying；After the completion of laying,
Separately formed on mold, 120~130 DEG C of temperature, pressure is 15~17Kg, and molding time 90 minutes, it is poly- to form super high molecular weight
The vinyl fiber helmet；
(2) carbon fiber laying mutually overlaps 12 layers of laying with 0 degree by 90 degree, separately formed on mold after the completion of laying,
120~130 DEG C of temperature, pressure is 12~15Kg, molding time 90 minutes, forms the carbon fiber helmet；
(3) the carbon fiber helmet outer surface in step (2) is uniformly brushed to the heat-curable urethane glue with a thickness of 0.3mm
Layer, by step (1) the ultra high molecular weight polyethylene fiber helmet and the carbon fiber helmet to carry out positioning glued, pressure 7~
10Kg solidifies at 80~100 DEG C of temperature, forms new combination.
Performance test:
Testing standard: according to GJB4300-2002 three-level；
Test method: according to GJB4300-2002 ballistic performance and cup depth experimental method；
Testing equipment: (1) firearms: 54 formula, 7.62 pistol
(2) bullet: 51 formula, 7.62 steel core bullet
(3) enter target speed: 428m/s
(4) high-speed camera: Phantom2511
Existing bulletproof halmet after tested its convex amount of bullet back be 13~17mm.Embodiment 1 and the existing helmet is corresponding
Template be tested for the property, test result is as shown in table 1:
1 test result of table
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (8)
1. a kind of preparation method of bulletproof halmet, which comprises the following steps: with ultra high molecular weight polyethylene fiber and
Carbon fiber is basic material, take high-performance toughened resin as the bonding agent of two kinds of basic materials, then adsorbed by high-temperature vacuum,
Hot pressing is integrally formed or ultra high molecular weight polyethylene fiber, carbon fiber are separately formed rear glued method and form entirety；Wherein base
Plinth material distribution mode are as follows: bullet face be ultra high molecular weight polyethylene fiber, carry on the back convex blocking surface be carbon fiber, the supra polymer
Weight polyethylene fiber is 50-56 layers total, and carbon fiber is 7-12 layers total.
2. the preparation method of bulletproof halmet according to claim 1, which is characterized in that the high-performance toughened resin is height
Tough epoxy resin, thermoplastic polyurethane, heat-curable urethane, thermoplastic polyolefin plastics, in thermoplastic poly esters plastics
It is a kind of.
3. the preparation method of bulletproof halmet according to claim 1, which is characterized in that the high-performance toughened resin is height
Tough epoxy resin.
4. the preparation method of bulletproof halmet according to claim 1, which is characterized in that the ultra-high molecular weight polyethylene is fine
Tieing up the number of plies is 53 layers, and the carbon fiber number of plies is 9 layers.
5. the preparation method of bulletproof halmet according to claim 1, which is characterized in that the ultra-high molecular weight polyethylene is fine
It ties up laying and is laid with 50-56 layers with 0 degree of mutual overlaps by 90 degree；Carbon fiber laying mutually overlaps with 0 degree by 90 degree and is laid with 7-12 layers,
Or by 45 degree of staggeredly mutually overlapping 7-12 layers of layings.
6. the preparation method of bulletproof halmet according to claim 1-5, which is characterized in that specifically include following step
It is rapid: after the completion of ultra high molecular weight polyethylene fiber and carbon fiber laying, in ultra high molecular weight polyethylene fiber and carbon fiber laying
Binding site brushing high-performance toughened resin, the good tablet of laying is placed on helmet mold, is wrapped up using high temperature resistant vacuum bag
The good tablet of laying, is vacuumized, and is kept vacuum pressure in 0.8~1.5MPA, is placed in curing oven, temperature 120~130
DEG C, it is kept for 90 minutes.
7. the preparation method of bulletproof halmet according to claim 1-5, which is characterized in that specifically include following step
It is rapid: after the completion of ultra high molecular weight polyethylene fiber and carbon fiber laying, in ultra high molecular weight polyethylene fiber and carbon fiber laying
Binding site brushing high-performance toughened resin, the good tablet of laying is placed on helmet mold, uses 300 tons of vulcanizing press pressures
Power molding keeps pressure in 15~17Kg, 120~130 DEG C of temperature, is kept for 90 minutes, stripping forming.
8. the preparation method of bulletproof halmet according to claim 1-5, which is characterized in that specifically include following step
It is rapid:
(1) separately formed on mold after the completion of ultra high molecular weight polyethylene fiber laying, 120~130 DEG C of temperature, pressure is
15~17Kg molding time 90 minutes, forms the ultra high molecular weight polyethylene fiber helmet；
(2) separately formed on mold after the completion of carbon fiber laying, 120~130 DEG C of temperature, pressure is 12~15Kg, when molding
Between 90 minutes, formed the carbon fiber helmet；
(3) the high-performance toughened resin glue-line with a thickness of 0.3mm is uniformly brushed into the carbon fiber helmet outer surface in step (2),
By in step (1) the ultra high molecular weight polyethylene fiber helmet and the carbon fiber helmet to carry out positioning glued, in 7~10Kg of pressure,
Solidify at 80~100 DEG C of temperature, forms new combination.
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| CN201711140410.6A CN109795132A (en) | 2017-11-16 | 2017-11-16 | A kind of preparation method of bulletproof halmet |
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| CN201711140410.6A CN109795132A (en) | 2017-11-16 | 2017-11-16 | A kind of preparation method of bulletproof halmet |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169040A (en) * | 2020-02-05 | 2020-05-19 | 嵊州潘辰机械科技有限公司 | Ultrahigh molecular weight polyethylene fiber splicing and pressing device |
| CN112629324A (en) * | 2020-11-12 | 2021-04-09 | 湖南欧亚碳纤维复合材料有限公司 | Carbon fiber composite bulletproof plate and preparation process thereof |
| CN113834384A (en) * | 2021-09-23 | 2021-12-24 | 中国兵器工业第五九研究所 | Bulletproof back plate with bionic laminated structure and preparation method thereof |
| CN114001591A (en) * | 2021-10-22 | 2022-02-01 | 江西长江化工有限责任公司 | Multilayer bulletproof helmet structure and forming method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448628A (en) * | 2006-03-21 | 2009-06-03 | 帝斯曼知识产权资产管理有限公司 | Process for the manufacture of a shaped part and shaped part obtainable with said process |
| CN105066785A (en) * | 2015-08-28 | 2015-11-18 | 北京普凡防护科技有限公司 | Aramid fiber composite bulletproof helmet of special structural design and forming method of helmet |
-
2017
- 2017-11-16 CN CN201711140410.6A patent/CN109795132A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101448628A (en) * | 2006-03-21 | 2009-06-03 | 帝斯曼知识产权资产管理有限公司 | Process for the manufacture of a shaped part and shaped part obtainable with said process |
| CN105066785A (en) * | 2015-08-28 | 2015-11-18 | 北京普凡防护科技有限公司 | Aramid fiber composite bulletproof helmet of special structural design and forming method of helmet |
Non-Patent Citations (1)
| Title |
|---|
| 贾德昌等: "《无机聚合物及其复合材料》", 31 March 2014, 哈尔滨工业大学出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111169040A (en) * | 2020-02-05 | 2020-05-19 | 嵊州潘辰机械科技有限公司 | Ultrahigh molecular weight polyethylene fiber splicing and pressing device |
| CN111169040B (en) * | 2020-02-05 | 2021-03-12 | 嵊州潘辰机械科技有限公司 | Ultrahigh molecular weight polyethylene fiber splicing and pressing device |
| CN112629324A (en) * | 2020-11-12 | 2021-04-09 | 湖南欧亚碳纤维复合材料有限公司 | Carbon fiber composite bulletproof plate and preparation process thereof |
| CN113834384A (en) * | 2021-09-23 | 2021-12-24 | 中国兵器工业第五九研究所 | Bulletproof back plate with bionic laminated structure and preparation method thereof |
| CN114001591A (en) * | 2021-10-22 | 2022-02-01 | 江西长江化工有限责任公司 | Multilayer bulletproof helmet structure and forming method thereof |
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