CN110819101A - Flame-retardant aramid bulletproof composite material and preparation method thereof - Google Patents
Flame-retardant aramid bulletproof composite material and preparation method thereof Download PDFInfo
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- CN110819101A CN110819101A CN201911145942.8A CN201911145942A CN110819101A CN 110819101 A CN110819101 A CN 110819101A CN 201911145942 A CN201911145942 A CN 201911145942A CN 110819101 A CN110819101 A CN 110819101A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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Abstract
The invention relates to a flame-retardant aramid bulletproof composite material and a preparation method thereof. The flame-retardant aramid bulletproof composite material comprises a flame-retardant resin matrix and high-performance aramid fibers. The flame-retardant aramid bulletproof composite material is formed by compounding non-woven cloth prepared from high-performance aramid fiber and flame-retardant resin in a multi-layer physical lamination or multi-layer mould pressing mode. The flame-retardant resin matrix adopted by the invention utilizes the reactive flame retardant and the crosslinking agent to react through carboxyl, amino and other groups, so that the compatibility of the system is improved, the modified nano antimony trioxide is used as a synergistic flame retardant to improve the flame retardant property of the resin, and the aramid bulletproof composite material prepared by compounding the flame-retardant aqueous resin system and the high-performance fiber is an essential flame-retardant material, so that the flame-retardant resin matrix has high flame-retardant efficiency and does not generate toxic and harmful substances in the combustion process.
Description
Technical Field
The invention belongs to the field of individual protection and special equipment, and relates to a flame-retardant aramid bulletproof composite material and a preparation method thereof.
Background
In the threat of war or terrorist attacks, fires are often inevitable. This requires that the protective clothing and equipment to be flame retardant. In the civil field, along with the advance of urbanization construction, the population density of cities is increased, and fires are more frequent, especially in public places with people gathering such as subways, hospitals and banks, and when the fires occur, the protective clothing with the flame-retardant function can provide fireproof protection for wearers while resisting bullets or stabbing. Therefore, the demand of the domestic and foreign markets for flame-retardant protective materials is increasing year by year.
In the prior art, there are two general methods for improving the flame retardant property of the bulletproof material: firstly, a flame-retardant structure is added to provide the whole flame-retardant performance, but the method does not change the flame-retardant performance of the bulletproof material essentially and increases the whole weight of the material; another approach is to add flame retardants to the matrix used in the ballistic resistant material, but to reduce the ballistic resistance properties of the material.
Disclosure of Invention
The invention aims to provide a flame-retardant aramid bulletproof composite material and a preparation method thereof. Not only endows the aramid bulletproof material with flame retardant performance, but also does not cause weakening of bulletproof performance, and overcomes the defects of the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows: the flame-retardant aramid bulletproof composite material comprises a flame-retardant resin matrix and high-performance aramid fibers. The flame-retardant resin matrix is a resin system prepared by reacting a mixture of two or more of waterborne polyurethane, waterborne epoxy resin and acrylate with a flame retardant in a certain ratio.
The flame-retardant aramid bulletproof composite material adopts a flame-retardant resin matrix which is a resin system prepared by reacting a mixture of two or more of waterborne polyurethane, waterborne epoxy resin and acrylate with a flame retardant in a certain ratio.
As the flame-retardant aramid bulletproof composite material and the preparation method thereof, the mass fraction of the flame retardant in the flame-retardant resin matrix is 5-20%.
The flame retardant is a compound system of modified antimony trioxide, a phosphorus-containing flame retardant and a silicon flame retardant.
The flame-retardant aramid bulletproof composite material and the preparation method thereof adopt the intrinsically flame-retardant aramid non-woven cloth prepared from a flame-retardant resin matrix and high-performance aramid fibers and are formed by multilayer physical superposition or multilayer die pressing compounding.
The flame-retardant aramid bulletproof composite material and the preparation method thereof comprise 20-50 layers of intrinsic flame-retardant aramid laid fabric.
Detailed Description
The examples and descriptions of the present invention are provided to explain the present invention and should not be construed as unduly limiting the invention.
Example 1
Preparing a flame retardant compound system, adding the flame retardant compound system into a mixture of waterborne polyurethane and waterborne epoxy resin, controlling the mass fraction of the flame retardant to be 5%, and stirring to fully react to obtain the flame-retardant resin matrix. Adding the high-performance aramid fiber and the obtained flame-retardant resin matrix into the corresponding position of a roller machine, preparing the intrinsic flame-retardant aramid fiber laid fabric by adopting a laid fabric manufacturing method, and physically superposing 26 layers to obtain the flame-retardant aramid fiber bulletproof composite material. The flame retardant performance of the aramid laid fabric is tested by an oxygen index measurement method, and live ammunition test is carried out according to the IIIA-level bulletproof standard in NIJ 0101.06.
Example 2
Preparing a flame retardant compound system, adding the flame retardant compound system into a mixture of waterborne polyurethane and acrylic ester, controlling the mass fraction of the flame retardant to be 10%, and stirring to enable the flame retardant compound system to fully react to obtain a flame-retardant resin matrix. Adding high-performance aramid fiber and the obtained flame-retardant resin matrix into a position corresponding to a roller machine, preparing the intrinsically flame-retardant aramid laid fabric by adopting a laid fabric manufacturing method, testing the flame retardant performance of the aramid laid fabric by adopting an oxygen index measurement method, and compositing 28 layers by adopting a die pressing process to obtain the flame-retardant aramid bulletproof composite material. Live ammunition testing was performed according to the level IIIA ballistic standard in NIJ 0101.06.
Example 3
Preparing a flame retardant compound system, adding the flame retardant compound system into a mixture of waterborne polyurethane, waterborne epoxy resin and acrylate, controlling the mass fraction of the flame retardant to be 20%, and stirring to fully react to obtain the flame-retardant resin matrix. Adding the high-performance aramid fiber and the obtained flame-retardant resin matrix into the corresponding position of a roller machine, preparing the intrinsic flame-retardant aramid fiber laid fabric by adopting a laid fabric manufacturing method, and physically superposing 26 layers to obtain the flame-retardant aramid fiber bulletproof composite material. The flame retardant performance of the aramid laid fabric is tested by an oxygen index measurement method, and live ammunition test is carried out according to the IIIA-level bulletproof standard in NIJ 0101.06.
Comparative example 1
The preparation method comprises the steps of mixing waterborne polyurethane and waterborne epoxy resin according to a certain proportion to prepare a resin matrix, adding the resin matrix and high-performance aramid fibers to a corresponding position of a roller machine, preparing aramid laid cloth by adopting a laid cloth manufacturing method, and physically superposing 26 layers to obtain the aramid bulletproof composite material. The flame retardant performance of the aramid laid fabric is tested by an oxygen index measurement method, and live ammunition test is carried out according to the IIIA-level bulletproof standard in NIJ 0101.06.
Comparative example 2
Mixing waterborne polyurethane and acrylate according to a certain proportion to prepare a resin matrix, adding the resin matrix and high-performance aramid fiber to a corresponding position of a roller machine, preparing aramid non-woven cloth by adopting a non-woven cloth manufacturing method, superposing 28 layers, and compounding by adopting a die pressing process to obtain the flame-retardant aramid bulletproof composite material. The flame retardant performance of the aramid laid fabric is tested by an oxygen index measurement method, and live ammunition test is carried out according to the IIIA-level bulletproof standard in NIJ 0101.06.
Comparative example 3
The preparation method comprises the steps of mixing waterborne polyurethane, waterborne epoxy resin and acrylate according to a certain proportion to prepare a resin matrix, adding the resin matrix and high-performance aramid fibers to a corresponding position of a roller machine, preparing aramid laid cloth by adopting a laid cloth manufacturing method, and physically superposing 26 layers to obtain the aramid bulletproof composite material. The flame retardant performance of the aramid laid fabric is tested by an oxygen index measurement method, and live ammunition test is carried out according to the IIIA-level bulletproof standard in NIJ 0101.06.
The test results are shown in table 1.
Table 1 flame-retardant aramid bulletproof composite Material Performance test results
According to the results in table 1, the penetration of bullets in the flame-retardant aramid bulletproof composite materials obtained in examples 1, 2 and 3 in a live-action test is equivalent to that of the bulletproof composite materials obtained in comparative examples 1, 2 and 3 in a corresponding forming process, and it can be seen that when the mass fraction of the phosphorus-containing flame retardant is 5% to 20%, the bulletproof performance of the composite materials is not weakened. The oxygen index test results show that the oxygen indexes of the materials of the example 1, the example 2 and the example 3 are all larger than those of the materials of the comparative example 1, the comparative example 2 and the comparative example 3. Generally, fabrics with flame retardant properties will have an LOI value equal to or greater than 28%. The oxygen index of the flame-retardant aramid bulletproof composite material prepared by the invention is more than 28%, and the flame-retardant property is excellent.
In conclusion, the flame-retardant aramid bulletproof composite material disclosed by the invention endows the aramid non-woven fabric with intrinsic flame-retardant performance. In addition, the preparation method of the composite material is laminating or compression molding of the multi-layer flame-retardant aramid fiber laid fabric, and can be used for producing flame-retardant bulletproof products.
It will be appreciated by persons skilled in the art that the present invention is not limited to details of the foregoing embodiments, which are exemplary rather than limiting, and that the scope of the present invention is defined by the appended claims rather than by the foregoing description. Therefore, changes within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (7)
1. A flame-retardant aramid bulletproof composite material comprises a flame-retardant resin matrix and high-performance aramid fibers. The flame-retardant resin matrix is a resin system prepared from water-based resin and a flame retardant in a certain proportion.
2. The flame-retardant aramid bulletproof composite material according to claim 1, characterized in that the adopted flame-retardant resin matrix is a resin system prepared from a mixture of two or more of waterborne polyurethane, waterborne epoxy resin and acrylate and a flame retardant in a certain proportion.
3. The flame-retardant aramid bulletproof composite material according to claim 1, wherein the flame-retardant resin matrix contains 5-20% of the flame retardant by mass.
4. The flame-retardant aramid bulletproof composite material according to claim 1, wherein the flame retardant is a compound system of modified antimony trioxide, a phosphorus-containing flame retardant and a silicon-based flame retardant.
5. The flame retardant according to claim 4, wherein the mass ratio of the three components in the compound system of the modified antimony trioxide, the phosphorus-containing flame retardant and the silicon-based flame retardant is 5-10 percent to 55-65 percent to 40-25 percent.
6. The flame-retardant aramid bulletproof composite material according to claim 1, wherein the flame-retardant aramid fiber non-woven fabric is prepared by adopting an intrinsically flame-retardant aramid fiber non-woven fabric prepared from a flame-retardant resin matrix and high-performance aramid fibers and is formed by multilayer physical superposition or multilayer die pressing compounding.
7. The preparation method of the flame-retardant aramid bulletproof composite material according to claim 1 or 5, wherein the number of layers of the inherently flame-retardant aramid laid fabric is 20-50.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911145942.8A CN110819101A (en) | 2019-11-21 | 2019-11-21 | Flame-retardant aramid bulletproof composite material and preparation method thereof |
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| CN201911145942.8A CN110819101A (en) | 2019-11-21 | 2019-11-21 | Flame-retardant aramid bulletproof composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662542A (en) * | 2020-06-24 | 2020-09-15 | 中国兵器工业第五九研究所 | Preparation method of semi-cured dual-resin system composite material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753903A (en) * | 2013-11-27 | 2014-04-30 | 北京同益中特种纤维技术开发有限公司 | Preparation method for flame-resistant bulletproof composite material and prepared composite material |
| CN104669724A (en) * | 2013-11-29 | 2015-06-03 | 北京雷特新技术实业公司 | Soft bullet-proof and puncture-proof sheet material |
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- 2019-11-21 CN CN201911145942.8A patent/CN110819101A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103753903A (en) * | 2013-11-27 | 2014-04-30 | 北京同益中特种纤维技术开发有限公司 | Preparation method for flame-resistant bulletproof composite material and prepared composite material |
| CN104669724A (en) * | 2013-11-29 | 2015-06-03 | 北京雷特新技术实业公司 | Soft bullet-proof and puncture-proof sheet material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111662542A (en) * | 2020-06-24 | 2020-09-15 | 中国兵器工业第五九研究所 | Preparation method of semi-cured dual-resin system composite material |
| CN111662542B (en) * | 2020-06-24 | 2021-11-02 | 中国兵器工业第五九研究所 | Preparation method of semi-cured dual-resin system composite material |
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