CN104045975A - Preparation method of particle reinforced and toughened resin based fibrous composite material - Google Patents
Preparation method of particle reinforced and toughened resin based fibrous composite material Download PDFInfo
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- CN104045975A CN104045975A CN201310083719.1A CN201310083719A CN104045975A CN 104045975 A CN104045975 A CN 104045975A CN 201310083719 A CN201310083719 A CN 201310083719A CN 104045975 A CN104045975 A CN 104045975A
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Abstract
The invention relates to a preparation method of a particle reinforced and toughened resin based fibrous composite material. the preparation method is characterized in that 5-30 parts by weight of solid particles with grain size of 10-50 micron is added into 100 parts by weight of matrix resin; and after the solid particles and the matrix resin are uniformly mixed, vacuum introduction is carried out to prepare the fiber reinforced composite material. By the use of particles, mechanical properties (such as strength and toughness, etc.) of the fiber reinforced composite material can be raised by 10-35%.
Description
Technical field
The present invention relates to a kind of preparation method who adopts particle to strengthen toughened resin base mechanics of fibre composites performance.
Technical background
In recent years along with the fast development of wind-powered electricity generation and automobile industry, polymer matrix composites have also obtained rapid progress, comprising galss fiber reinforced resin based composites, carbon fiber enhancement resin base composite material and other high-performance fibers, strengthen polymer matrix composites.But because the toughness of resin own and intensity are not high, resin and fiber interface bondability are not high simultaneously, and it is not very satisfactory making the mechanical properties such as fiber-reinforced resin matrix compound material intensity and toughness.
In matrix material preparation, apply more resin at present and have epoxy resin, unsatured epoxy resin and resol.Wherein resol, because price is lower, is the resin being most widely used at present.But the intensity of resol own is poorer than epoxy resin and unsatured epoxy resin with toughness, the mechanical property of resin itself has seriously limited application and the development of fibre reinforced composites.
The method that improves fibre reinforced composites intensity and toughness is many, thereby but all concentrate on, carrying out chemical modification or improve fiber and resin boundary surface performance to carry out modification at fiber surface in production of resins process, all there is the problem that production cost is higher in these methods.This aspect adopts conventional granulates evenly to sneak into resin, then utilize vacuum introducing technology to prepare particle fortifying fibre matrix material, by the selection to grain type, the control of granularity, particle diameter and consumption, is obviously strengthened fiber-reinforced resin matrix compound material intensity and toughness.
Summary of the invention
The object of the invention is by add the particle of specific type, particle diameter and consumption in resin, by vacuum leading-in technique, the fiber-reinforced resin matrix compound material of low-cost preparation high strength and high-tenacity.
In order to achieve the above object, the invention provides a kind of preparation method who adopts particle to strengthen toughening carbon fiber reinforced composite materials property, it is characterized in that, in matrix resin 100 weight parts, adding particle diameter is the solid particulate 5-30 weight part of 10-50 μ m, after mixing, then carry out vacuum importing and make carbon fibre reinforced composite.The present invention can utilize particle to make the mechanical properties such as carbon fibre reinforced composite intensity and toughness improve 10%-35%.
For particle is mixed in resin, in order further to reduce the viscosity of resin system, the viscosity controller of described matrix resin is below 450mPas simultaneously.Described matrix resin can be epoxy resin or resol or unsatured epoxy resin.
In order to make particle improve and reach maximum value mechanical properties such as polymer matrix composites intensity and toughness, simultaneously in order further to avoid particles settling, guarantee that it can effectively disperse in resin system, described grain diameter general control is at 10-50 μ m.Described particle is hard particles, is preferably carbon fiber particle or silicon-dioxide or carbon black granules or titanium dioxide or aluminum oxide or its composition, and such particle has nontoxic, tasteless, good dispersity, simultaneously relatively little on the impact of resin viscosity.
In described matrix resin, also add promotor 1-5 weight part, for reducing temperature of reaction, improve speed of response.
In described matrix resin, also add solidifying agent 10-40 weight part, for solidifying of resin.
In described matrix resin, also add dispersion agent 1-10 weight part, for improving the dispersiveness of resin system.
Advantage of the present invention is: the present invention by adding the particle of specific type, particle diameter and consumption in resin, by vacuum leading-in technique, the fiber-reinforced resin matrix compound material of preparing high strength and high-tenacity with low cost, can meet the requirement to fiber-reinforced resin matrix compound material high strength and the contour standard mechanical property of high-tenacity at wide spectrum.
Embodiment
Below in conjunction with embodiment, illustrate the present invention.
Embodiment 1
1. mould is prepared: the surface of cleaning mold, release agent spraying.
2. at mould upper berth glasscloth, (twin shaft is to through compiling Woven glass cloth, fabric specification: grammes per square metre is 600g/m
2, through close be 270/10cm, filling density is 270/10cm), in fabric surrounding, paste double faced adhesive tape, and then in fabric laying, spread successively release cloth and flow-guiding screen.On double faced adhesive tape, lay thrust-augmenting nozzle and airway, be then close to vacuum diaphragm.Thrust-augmenting nozzle connects resin barrel, and airway connects vacuum pump.Check resistance to air loss.
3. configure according to the following steps resin:
(1) carbon fiber particle (particle diameter 15-20 μ m) 5 weight parts;
(2) carbon fiber particle is added to acetone (analytical pure) 100 weight parts;
(3) the above-mentioned acetone that is mixed with carbon fiber particle is shaken 2 hours in ultrasonic container;
(4) take epoxy resin 100 weight parts that viscosity is 140mPas;
(5) the carbon fiber particle/acetone soln through ultrasonic oscillation is sneaked into epoxy resin;
(6) then promotor (the naphthoic acid cobalt salts solution that concentration is 6wt%) 1 weight part and solidifying agent (methylethyl ketone peroxide) 25 weight parts are added to above-mentioned epoxy resin;
(7) above-mentioned epoxy resin is stirred 12 hours with agitator at normal temperatures, standby.
4. resin by injection under vacuum keeps vacuum tightness before resin gel, after resin solidification is complete, and the demoulding.The particle reinforcing glass fibre composite of gained increases respectively 21.5% and 18.4% than bare glass composite material strength and toughness, and its concrete mechanical property parameters is in Table 1.
Embodiment 2
1. mould is prepared: the surface of cleaning mold, release agent spraying.
2. at mould upper berth carbon fibre fabric, (three axially through compiling carbon fibre fabric, fabric specification: grammes per square metre is 900g/m
2, every one deck density is 360/10cm), in fabric surrounding, paste double faced adhesive tape, and then in fabric laying, spread successively release cloth and flow-guiding screen.On double faced adhesive tape, lay thrust-augmenting nozzle and airway, be then close to vacuum diaphragm.Thrust-augmenting nozzle connects resin barrel, and airway connects vacuum pump.Check resistance to air loss.
3. configure according to the following steps resin:
(1) carbon black granules (particle diameter 10-15 μ m) 5 weight parts;
(2) carbon fiber particle is added to acetone (analytical pure) 100 weight parts;
(3) the above-mentioned acetone that is mixed with carbon fiber particle is shaken 2 hours in ultrasonic container;
(4) take epoxy resin 100 weight parts that viscosity is 125mPas;
(5) the carbon fiber particle/acetone soln through ultrasonic oscillation is sneaked into epoxy resin;
(6) then promotor (the naphthoic acid cobalt salts solution that concentration is 6wt%) 2 weight parts and solidifying agent (methylethyl ketone peroxide) 20 weight parts are added to above-mentioned epoxy resin;
(7) above-mentioned epoxy resin is stirred 12 hours with agitator at normal temperatures, standby.
4. resin by injection under vacuum keeps vacuum tightness before resin gel, after resin solidification is complete, and the demoulding.The particle enhanced carbon fiber matrix material of gained increases respectively 25.2% and 19.1% than original carbon fiber composite material strength and toughness, and its concrete mechanical property parameters is in Table 2.
Embodiment 3
1. mould is prepared: the surface of cleaning mold, release agent spraying.
2. at mould upper berth basalt fibre fabric, (twin shaft is to through compiling basalt fibre fabric, fabric specification: grammes per square metre is 730g/m
2, through close be 310/10cm, filling density is 310/10cm), in fabric surrounding, paste double faced adhesive tape, and then in fabric laying, spread successively release cloth and flow-guiding screen.On double faced adhesive tape, lay thrust-augmenting nozzle and airway, be then close to vacuum diaphragm.Thrust-augmenting nozzle connects resin barrel, and airway connects vacuum pump.Check resistance to air loss.
3. configure according to the following steps resin:
(1) carbon black granules (particle diameter 10-15 μ m) 5 weight parts;
(2) carbon fiber particle is added to acetone (analytical pure) 100 weight parts;
(3) the above-mentioned acetone that is mixed with carbon fiber particle is shaken 2 hours in ultrasonic container;
(4) take epoxy resin 100 weight parts that viscosity is 125mPas;
(5) the carbon fiber particle/acetone soln through ultrasonic oscillation is sneaked into epoxy resin;
(6) then promotor (the naphthoic acid cobalt salts solution that concentration is 6wt%) 2 weight parts and solidifying agent (methylethyl ketone peroxide) 20 weight parts are added to above-mentioned epoxy resin;
(7) above-mentioned epoxy resin is stirred 12 hours with agitator at normal temperatures, standby.
4. resin by injection under vacuum keeps vacuum tightness before resin gel, after resin solidification is complete, and the demoulding.The particle of gained strengthens basalt fiber composite material and increases respectively 20.2% and 21.6% than former basalt fiber composite material intensity and toughness, and its concrete mechanical property parameters is in Table 3.
Table 1 embodiment 1 composite materials property
Table 2 embodiment 2 composite materials properties
Table 3 embodiment 3 composite materials properties
Claims (8)
1. a preparation method who adopts particle to strengthen toughened fiber composite materials property, it is characterized in that, in matrix resin 100 weight parts, adding particle diameter is the solid particulate 5-30 weight part of 10-50 μ m, after mixing, then carries out vacuum importing and makes fibre reinforced composites.The present invention can utilize particle to make the mechanical properties such as fibre reinforced composites intensity and toughness improve 10%-35%.
2. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, described matrix resin can be epoxy resin or resol or unsatured epoxy resin, and viscosity is without particular requirement.
3. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, described matrix resin viscosity controller is below 450mPas.
4. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, described particle is hard particles, can be carbon fiber particle or silicon-dioxide or carbon black granules or titanium dioxide or aluminum oxide or its composition.
5. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, the particle diameter of described particle is 10-50 μ m.
6. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, also adds promotor 1-5 weight part in described matrix resin.
7. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, also adds solidifying agent 10-40 weight part in described matrix resin.
8. the particle as described in right 1 strengthens the preparation method of toughened fiber composite materials property, it is characterized in that, also adds dispersion agent 1-10 weight part in described matrix resin.
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| CN104045975A true CN104045975A (en) | 2014-09-17 |
| CN104045975B CN104045975B (en) | 2017-04-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484135A (en) * | 2018-04-17 | 2018-09-04 | 苏州宏久航空防热材料科技有限公司 | A kind of growth in situ ceramics reinforcing fiber resin composite materials |
| CN113353916A (en) * | 2020-03-05 | 2021-09-07 | 宁夏大学 | Salix purpurea carbonized nanoparticle, Salix purpurea carbonized nanoparticle reinforced composite material, and preparation method and application thereof |
-
2013
- 2013-03-15 CN CN201310083719.1A patent/CN104045975B/en active Active
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| OSMAN ASI: "Mechanical Properties of Glass-Fiber Reinforced Epoxy Composites Filled with Al2O3 Particles", 《JOURNAL OF REINFORCED PLASTICS AND COMPOSITES》 * |
| 吕文晏等: "碳质材料增强环氧树脂复合材料力学性能研究进展", 《化工新型材料》 * |
| 杨学军等: "纳米碳黑对酚醛树脂力学性能的影响", 《宇航材料工艺》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484135A (en) * | 2018-04-17 | 2018-09-04 | 苏州宏久航空防热材料科技有限公司 | A kind of growth in situ ceramics reinforcing fiber resin composite materials |
| CN113353916A (en) * | 2020-03-05 | 2021-09-07 | 宁夏大学 | Salix purpurea carbonized nanoparticle, Salix purpurea carbonized nanoparticle reinforced composite material, and preparation method and application thereof |
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| CN104045975B (en) | 2017-04-26 |
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