CN103122556B - Curing agent strengthens aramid fiber compound without latitude cloth and its preparation method and application - Google Patents
Curing agent strengthens aramid fiber compound without latitude cloth and its preparation method and application Download PDFInfo
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- CN103122556B CN103122556B CN201310064764.2A CN201310064764A CN103122556B CN 103122556 B CN103122556 B CN 103122556B CN 201310064764 A CN201310064764 A CN 201310064764A CN 103122556 B CN103122556 B CN 103122556B
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Abstract
The invention belongs to and shellproofly protect product field, is that a kind of curing agent strengthens aramid fiber compound without latitude cloth and its preparation method and application, by aramid fiber by exhibition silk, evenly, after parallel and straight and upright arrangement, gluing is carried out to it, and makes after drying, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is the 0.8-1.6% of adhesive weight.Curing agent of the present invention strengthens aramid fiber compound can overcome prior art existence to a great extent defect without latitude cloth, not only change the heat endurance of material, improve aramid fiber compound without the shock resistance of latitude cloth, shellproof and anti-stab performance, also can improve its high temperature performance simultaneously, can also enhance productivity.
Description
Technical field
The invention belongs to and shellproofly protect product field, relate to a kind of improvement and preparation of aramid fiber laid fabric, a kind of curing agent strengthens aramid fiber compound without latitude cloth and its preparation method and application specifically.
Background technology
Aramid fiber laid fabric passes through exhibition silk by aramid fiber, after even, parallel and straight and upright arrangement, makes after carrying out gluing, drying to it.Wherein the adhesive of gluing generally comprises polyethylene, crosslinked polyethylene, polypropylene, ethylenic copolymer, propylene copolymer, ethylene-propylene copolymer and other olefin polymers and copolymer, also have the many low modulus resins of unsaturated polyester (UP), polybutadiene, polyisoprene, natural rubber, epoxy resin, poly-imines etc., in addition, fourth sodium glue, these thermoplasticity high-ductility glues of butadiene-styrene rubber PVB, PVA etc. such as EVA, EEA, SBS, SIS, TPR, SEBS are also had.The elastomer of these low modulus is coated on each root fiber, and except can fixing the fiber as reinforcement, the shock resistance that can also improve composite is shellproof, put thorn performance.
But this compound is without latitude cloth, due to the shortcoming of the adhesive self as matrix, compound is affected without the combination property of latitude cloth, is embodied in poor heat resistance, particularly its high temperature performance is poor, and comprehensive mechanical intensity is also poor, and production efficiency is lower.Therefore, how to change the production efficiency of aramid fiber compound without latitude cloth, improve its ballistic performance, become the inexorable trend of shielding research.
The Chinese patent of number of patent application 200910224262.5 discloses a kind of aramid fiber laid fabric and its preparation method and application, containing aziridine hardener in the adhesive that its gluing process uses, although aramid fiber compound can be improved to a certain extent without the shock resistance of latitude cloth, shellproof and anti-stab performance, can also enhance productivity, but poor to the high temperature performance that cannot improve aramid fiber laid fabric.
Summary of the invention
Technical problem to be solved by this invention is:
(1) how to improve the high temperature performance of synthetic fibre fiber laid fabric, make its bursting power at high or low temperatures still can obtain certain guarantee;
(2) how to improve aramid fiber compound without the shock resistance of latitude cloth, shellproof and anti-stab performance, can also enhance productivity.
The technical scheme that the present invention solves above technical problem is:
Curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is the 0.8-1.6% of adhesive weight.
Curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) add in adhesive by proportioning by curing agent or with coupling agent, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40-70 DEG C of oven dry.
Present invention also offers above-mentioned curing agent and strengthen aramid fiber compound without latitude cloth in the shellproof application protecting product field.
The technical scheme that the present invention limits further is:
Aforesaid curing agent strengthens aramid fiber compound without latitude cloth, and also containing coupling agent in the adhesive that gluing process uses, the addition of coupling agent is the 0.6-0.9% of adhesive weight, and coupling agent is silane coupler or titanate coupling agent.By adding coupling agent, by coupling agent, functional modification is carried out to adhesive, thus aramid fiber compound can be made to be further enhanced without the cryogenic property of latitude cloth, temperature can be low to moderate about-20 DEG C, under about-20 DEG C low temperature, bursting power still can obtain certain guarantee, compound also can be enable to absorb the kinetic energy of the bullet overwhelming majority without latitude cloth, improving its impact resistance further by increasing coupling agent, the impact of passivation cutter and bullet, improves anti-stab and ballistic performance.
Aforesaid curing agent strengthens aramid fiber compound without latitude cloth, and adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.
Aforesaid curing agent strengthens aramid fiber compound without latitude cloth, and adhesive is water accack, and in water accack, the weight ratio of adhesive and water is 1:5-3:5.
Aforesaid curing agent strengthens aramid fiber compound without latitude cloth, trimethylolpropane triacrylate viscosity < 200mpa.s.
The invention has the beneficial effects as follows:
The present invention uses trimethylolpropane triacrylate as fixative, also can add coupling agent simultaneously, can improve the high temperature performance of synthetic fibre fiber laid fabric, makes its bursting power at high or low temperatures still can obtain certain guarantee; In order to prove its high temperature performance, with the following test of row: cloth specimen being put into temperature is that-20 ± 2 DEG C of insulating boxs keep 4h, carries out cryogenic mechanics performance test, obtains cryogenic mechanics performance change curve (Fig. 1); Cloth specimen being put into temperature is that 55 ± 2 DEG C of insulating boxs keep 4h, carries out mechanical behavior under high temperature test, obtains mechanical behavior under high temperature change curve (Fig. 2); Cloth specimen being put into temperature is that 80 ± 2 DEG C of insulating boxs keep 240h, carries out Mechanics Performance Testing, obtains constant temperature and humidity mechanical property change curve (Fig. 3).As can be seen from Fig. 1 and Fig. 2, the present invention still can ensure stronger bursting ability under high temperature and cryogenic conditions, can significantly improve the bursting ability of material, thus improve the high temperature performance of material.The present invention significantly improves the maximum bursting stress of cloth specimen 10 days wet heat conditions as can be seen from Figure 3.Compared with existing product, the maximum temperature that aramid fiber compound of the present invention uses without latitude cloth can improve about 5 DEG C, and minimum temperature can reduce about 10 DEG C.
The present invention, while the high temperature performance improving synthetic fibre fiber laid fabric, can also improve aramid fiber compound without the shock resistance of latitude cloth, shellproof and anti-stab performance, can also enhance productivity, be specially:
Electronic universal tester carries out bursting and tear test test, and bursting speed is 20mm/min, and tear speed is 50mm/min.
The degree of cross linking: take 0.6g sample in apparatus,Soxhlet's, with the continuous extracting 15h of acetone, sample residual weight is the degree of cross linking with original ratio, and by the suitable addition of repetition test determination curing agent.Curing agent content is 0.8% time as seen from Figure 4, and the degree of cross linking tends towards stability, and namely production efficiency improves rate stabilization.
Peel strength: test cloth specimen physical dimension such as Fig. 5 shows, test cloth specimen peeling rate is 50.0mm/min.
Practice shooting: according to America NI JIIIA grade standard, adopt 9mm tommy gun to carry out shellproof test, result improves the ballistic performance of material, reduces surface indentation.
Prove thus: curing agent of the present invention strengthens aramid fiber compound can overcome prior art existence to a great extent defect without latitude cloth, not only change the heat endurance of material, improve aramid fiber compound without the shock resistance of latitude cloth, shellproof and anti-stab performance, also can improve its high temperature performance simultaneously, can also enhance productivity.
Accompanying drawing explanation
Fig. 1 is that aramid fiber compound of the present invention is without latitude cloth cryogenic mechanics performance change curve.
Fig. 2 is that aramid fiber compound of the present invention is without latitude cloth mechanical behavior under high temperature change curve.
Fig. 3 is this constant temperature and humidity mechanical property change curve.
Fig. 4 is the influence curve figure of curing agent addition of the present invention to the degree of cross linking.
Fig. 5 is separating test cloth specimen schematic diagram of the present invention.
Detailed description of the invention
embodiment 1
The present embodiment is that a kind of curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is 0.8% of adhesive weight.Adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.Adhesive is water accack, and in water accack, the weight ratio of adhesive and water is 1:5.Trimethylolpropane triacrylate viscosity < 200mpa.s.
Curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) curing agent is added in adhesive by proportioning, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40 DEG C of oven dry.
The bulletproof effect of the present embodiment: by 40 layers, the UD material of 400mm × 400mm, AD=162g/m2 is neatly superimposed on the target holder that backing is clay, by GA141-2001 experimental standard, adopt 54 formula 7.62mm pistols, 51 formula balls, record: V50 >=530m/s; Back lining materials cup depth <25mm.
The present embodiment carries out temperature adaptability test: the present embodiment shellproof is put into temperature for-25 DEG C or 60 DEG C of insulating boxs without latitude cloth and keeps at least 4 hours, then carry out as above firing test, result meets the standard-required of GA141-2001.
Investigate production efficiency, the production time improves 100%, tests its mechanical property, and result improves the high and low temperature performance of material; Carry out live shell test without latitude cloth according to the standard of America NI JIIIA to the compound of certain number of plies, result meets standard-required completely, and is better than not adding aramid fiber compound that curing agent produces without latitude.
embodiment 2
The present embodiment is that a kind of curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is 1.6% of adhesive weight.Adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.Adhesive is water accack, and in water accack, the weight ratio of adhesive and water is 3:5.Trimethylolpropane triacrylate viscosity < 200mpa.s.
Curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) curing agent is added in adhesive by proportioning, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40-70 DEG C of oven dry.
The bulletproof effect of the present embodiment: by 40 layers, the UD material of 400mm × 400mm, AD=162g/m2 is neatly superimposed on the target holder that backing is clay, by GA141-2001 experimental standard, adopt 54 formula 7.62mm pistols, 51 formula balls, record: V50 >=530m/s; Back lining materials cup depth <25mm.
The present embodiment carries out temperature adaptability test: the present embodiment shellproof is put into temperature for-25 DEG C or 60 DEG C of insulating boxs without latitude cloth and keeps at least 4 hours, then carry out as above firing test, result meets the standard-required of GA141-2001.
Investigate production efficiency, the production time improves 100%, tests its mechanical property, and result improves the high and low temperature performance of material; Carry out live shell test without latitude cloth according to the standard of America NI JIIIA to the compound of certain number of plies, result meets standard-required completely, and is better than not adding aramid fiber compound that curing agent produces without latitude.
embodiment 3
The present embodiment is that a kind of curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is 0.9% of adhesive weight.Adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.Adhesive is water accack, and in water accack, the weight ratio of adhesive and water is 2:5.Trimethylolpropane triacrylate viscosity < 200mpa.s.Also containing coupling agent in the adhesive that gluing process uses, the addition of coupling agent is 0.6% of adhesive weight, and coupling agent is silane coupler or titanate coupling agent.
Curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) curing agent and coupling agent are added in adhesive by proportioning, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40-70 DEG C of oven dry.
The bulletproof effect of the present embodiment: by 40 layers, the UD material of 400mm × 400mm, AD=162g/m2 is neatly superimposed on the target holder that backing is clay, by GA141-2001 experimental standard, adopt 54 formula 7.62mm pistols, 51 formula balls, record: V50 >=530m/s; Back lining materials cup depth <25mm.
Temperature adaptability test is carried out in this enforcement: the present embodiment shellproof is put into temperature for-25 DEG C or 60 DEG C of insulating boxs without latitude cloth and keeps at least 4 hours, then carry out as above firing test, result meets the standard-required of GA141-2001.
Investigate production efficiency, the production time improves 100%, tests its mechanical property, and result improves the high and low temperature performance of material; Carry out live shell test without latitude cloth according to the standard of America NI JIIIA to the compound of certain number of plies, result meets standard-required completely, and is better than not adding aramid fiber compound that curing agent and coupling agent produce without latitude.
embodiment 4
The present embodiment is that a kind of curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that gluing process uses; Curing agent is trimethylolpropane triacrylate, and the addition of curing agent is 0.8% of adhesive weight.Adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.Adhesive is water accack, and in water accack, the weight ratio of adhesive and water is 3:5.Trimethylolpropane triacrylate viscosity < 200mpa.s.Also containing coupling agent in the adhesive that gluing process uses, the addition of coupling agent is 0.9% of adhesive weight, and coupling agent is silane coupler or titanate coupling agent.
Curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) curing agent and coupling agent are added in adhesive by proportioning, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40-70 DEG C of oven dry.
The bulletproof effect of the present embodiment: by 40 layers, the UD material of 400mm × 400mm, AD=162g/m2 is neatly superimposed on the target holder that backing is clay, by GA141-2001 experimental standard, adopt 54 formula 7.62mm pistols, 51 formula balls, record: V50 >=530m/s; Back lining materials cup depth <25mm.
The present embodiment carries out temperature adaptability test: the present embodiment shellproof is put into temperature for-25 DEG C or 60 DEG C of insulating boxs without latitude cloth and keeps at least 4 hours, then carry out as above firing test, result meets the standard-required of GA141-2001.
Investigate production efficiency, the production time improves 100%, tests its mechanical property, and result improves the high and low temperature performance of material; Carry out live shell test without latitude cloth according to the standard of America NI JIIIA to the compound of certain number of plies, result meets standard-required completely, and is better than not adding aramid fiber compound that curing agent and coupling agent produce without latitude.
In addition to the implementation, the present invention can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of application claims.
Claims (5)
1. curing agent strengthens aramid fiber compound without latitude cloth, by aramid fiber by exhibition silk, after even, parallel and straight and upright arrangement, carries out gluing, and make after drying it, containing curing agent in the adhesive that described gluing process uses; Described curing agent is trimethylolpropane triacrylate, and the addition of described curing agent is the 0.8-1.6% of adhesive weight;
It is characterized in that: also containing coupling agent in the adhesive that described gluing process uses, the addition of described coupling agent is the 0.6-0.9% of adhesive weight, and described coupling agent is silane coupler or titanate coupling agent; The maximum temperature that described aramid fiber compound uses without latitude cloth improves 5 DEG C, and minimum temperature reduces by 10 DEG C;
Described curing agent strengthens aramid fiber compound without the preparation method of latitude cloth, comprises the following steps:
(i) curing agent and coupling agent are added in adhesive by proportioning, and fully mix;
(ii) aramid fiber is by exhibition silk, and evenly, after parallel and straight and upright arrangement, gluing is carried out to it;
(iii) 40-70 DEG C of oven dry.
2. curing agent as claimed in claim 1 strengthens aramid fiber compound without latitude cloth, it is characterized in that: described adhesive is rubber-like adhesive, comprises isoprene rubber, butadiene-styrene rubber, styrene rubber, butadiene rubber or isoprene rubber.
3. curing agent as claimed in claim 2 strengthens aramid fiber compound without latitude cloth, and it is characterized in that: described adhesive is water accack, in water accack, the weight ratio of adhesive and water is 1:5-3:5.
4. curing agent as claimed in claim 1 strengthens aramid fiber compound without latitude cloth, it is characterized in that: described trimethylolpropane triacrylate viscosity < 200mpa.s.
5. the curing agent as described in claim arbitrary in claim 1-4 strengthens aramid fiber compound without latitude cloth in the shellproof application protecting product field.
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| CN106223051A (en) * | 2016-08-31 | 2016-12-14 | 江苏领瑞新材料科技有限公司 | A kind of multi-angle bulletproof anti-puncturing laminated cloth and preparation method thereof |
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| DE19910201A1 (en) * | 1999-03-09 | 2000-09-14 | Richard Pott | Warp fiber-web useful for the production of engine covers, surf boards and body armor, comprises a layer of laterally stretched parallel oriented fiber bundles bonded to an adhesive fiber mesh. |
| DE10334178A1 (en) * | 2003-07-26 | 2005-02-10 | Pott, Richard, Dipl.-Ing. | Multilayer textile web of parallel fiber bundles and a nonwoven connected by adhesive thread grid |
| CN100567606C (en) * | 2007-02-28 | 2009-12-09 | 东华大学 | The application of CNT in northylen composite welfless cloth |
| CN101082182B (en) * | 2007-06-29 | 2010-05-19 | 东华大学 | Preparation of shell micro-powder reinforced super-high molecular weight polyethylene fibre composite non woven cloth |
| CN101285273A (en) * | 2008-05-16 | 2008-10-15 | 励佰芳 | Preparation method for composite UD non-woven fabrics and uses thereof |
| CN101892558B (en) * | 2009-11-26 | 2011-09-21 | 北京雷特新技术实业公司 | Aramid fiber laid fabric as well as preparation method and application thereof |
| CN102529196B (en) * | 2011-11-29 | 2016-01-13 | 北京航天雷特机电工程有限公司 | The preparation method of a kind of aramid fiber prepreg and laminated composite material |
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