CN105199321A - Novel FRP material and preparation method thereof - Google Patents
Novel FRP material and preparation method thereof Download PDFInfo
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- CN105199321A CN105199321A CN201510651574.XA CN201510651574A CN105199321A CN 105199321 A CN105199321 A CN 105199321A CN 201510651574 A CN201510651574 A CN 201510651574A CN 105199321 A CN105199321 A CN 105199321A
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Abstract
The invention discloses a novel FRP material and a preparation method thereof. According to the preparation method, the ductility and the strength of the FRP material are effectively improved under the premise of ensuring the rigidity and fiber utilization. The novel FRP material comprises the following components in percentage by weight: 50%-60% of high-strength and high-elastic-modulus fiber cloth 1, 0.1%-9% of high-ductility chopped fiber 2 and 30%-50% of high-performance resin 3. The preparation method comprises the following steps: (1) mixing the high-ductility chopped fiber 2 with the high-performance resin 3, adding a viscosity reducer, and carrying out high-speed uniform stirring until the high-ductility chopped fiber 2 presents unordered and nondirectional uniformity, so as to obtain mixed resin glue; and (2) in a vacuum low-pressure contact molding process, spreading the fiber cloth, demolding cloth, gridding cloth and a relatively-big vacuum film into a mold in a layer-by-layer manner, closely clinging, starting pouring after an injection tube is connected with a vacuum pump, an oil-gas separation tank and a resin tank, stopping pouring after the mixed resin glue is completely and uniformly distributed, and carrying out maintenance and demolding after the resin is completely cured, so as to obtain the novel FRP material with excellent ductility and high strength.
Description
Technical field
The present invention relates to a kind of FRP matrix material, particularly relate to a kind of ductility excellent, new type FRP material that intensity is high and preparation method thereof.
Background technology
At present, conventional fibre reinforced composites comprise carbon fibre reinforced composite (CFRP), glass fibre reinforced composion (GFRP) and aramid fiber reinforced composite (AFRP).The mechanical property of CFRP, long-term behaviour, fatigue property and alkali resistance surely belong in three best, and AFRP tensile strength is high, favorable working performance, and compressive property is poor, the intensity of GFRP is higher, long-term behaviour and fatigue property general, alkali resistance is poor, and price is cheapest in three.Although different FRP shows different character, the general character of enbrittling.The brittle behavior of FRP shows the failure mode without obvious sign, causes negative influence to the use in shipbuilding, automobile and the field such as electronic product, civil engineering work.
Brittle behavior both at home and abroad for FRP proposes some innovative approachs.The shallow former letter of Dongli Ltd. is male once proposed the shaping FRP of preform that a kind of multiple reinforcing-fiber substrate formed by fortifying fibre yarn stacked form, and then improve the mechanical quality of FRP, and register patent of invention (200580010567.6); A kind of high-strength FRP material that Central China University of Science and Technology's inscription on ancient bronze objects becomes and preparation method thereof and application (200910273443.7).
Though aforesaid method improves the FRP strength of materials, not easily, shaping FRP material isotropic is weak for manufacture craft.
Summary of the invention
In order to overcome problem and the shortcoming of existing FRP matrix material, not only intensity is high, isotropy is excellent to the invention provides one, and ductility be improved significantly, the simple new type FRP material of manufacturing process.
Know-why: by mixing the matrix of performance resins as FRP of the chopped strand of high-elongation, the intensity of resin matrix is promoted by the chopped strand mixing high-elongation, to improve the strain of first paragraph stress-strain(ed) curve (resin carrying), resin matrix to be mixed destroys, and the secondary rigidity that the cloth of high strength and high-elastic mould has as continuous fibre is to obtain better extension behavior.
Technical scheme:
A kind of new type FRP material, comprise the cloth 1 of high strength and high-elastic mould, the chopped strand 2 of high-elongation and performance resins 3, the hybrid resin matrix that the cloth 1 of described high strength and high-elastic mould is passed through to be mixed into the chopped strand 2 of described high-elongation and described performance resins 3 consists of new type FRP material, wherein component and weight percent are: the cloth 1 of high strength and high-elastic mould is 50 ~ 60%, the chopped strand 2 of high-elongation is 0.1 ~ 9%, and performance resins 3 is 30 ~ 50%.
The cloth 1 of described high strength and high-elastic mould is continuous print, adopts high-performance carbon fibre cloth or Kelvar49 aryl fiber cloth.
The chopped strand 2 of described high-elongation is E glass fibre, S or R glass fibre, HM-50 aramid fiber, basalt fibre.
The chopped strand 2 of described high-elongation is that length is in 3mm ~ 20mm scope.
Described performance resins 3 adopts epoxy resin or vinyl ester resin.
In the chopped strand 2 of described high-elongation and the mixture of described performance resins 3, both weight ratio are 1:5 ~ 1:300.
The preparation method of described a kind of new type FRP material comprises the following steps:
The first step, mixes the chopped strand 2 of described high-elongation and performance resins 3, and adds viscosity-depression agent high-speed stirring evenly, obtains hybrid resin glue;
Second step, coats releasing agent at mould, the described high strength of suitable dimension (300 × 300mm ~ 1000 × 1000mm) and the cloth 1 of high-elastic mould is spread into mould and is touched, successively spreads release cloth, grid cloth and vacuum diaphragm; Connect ventilative spiral tube and resin connector, syringe, connect vacuum pump and catch pot.Injection molding tube is fixed on resin storage tank and starts perfusion, after resin distributes completely uniformly, close extraction pipe wait for that resin solidifies completely.Maintenance 24 hours rear demouldings under the normal temperature of laboratory, allow FRP together with glass board mould below special curing room maintenance 6 ~ 8 hours, finally room temperature maintenance 24 hours, obtain a kind of new type FRP material.
Described viscosity-depression agent is polyethers viscosity-depression agent.
Described special curing room temperature is at 40 degree ~ 65 degree.
Described mixing comprises the implication of two aspects: the mixing being mechanical property on the one hand.By the mixing between chopped strand and resin, improve the performances such as the Young's modulus of resin matrix, bearing capacity and ductility.When resin matrix plays the main carrying stage, chopped strand can play a role, and improves bearing capacity; After resin matrix lost efficacy, cloth will play well stable secondary rigidity, and cloth is more outstanding by what show in intensity, rigidity etc.On the other hand by the filamentary material of mixing low cost high ductility, can better improve fibrolaminar measurement stability, also can reduce the cost of matrix material significantly.
FRP material vacuum form in the present invention, cloth, release cloth and grid cloth, vacuum diaphragm in a mold order are from bottom to top cloth, release cloth and grid cloth, vacuum diaphragm successively, to crumple in vacuum except vacuum diaphragm is a little greatly, ensure resistance to air loss, all the other sizes are basically identical.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of new type FRP material of the present invention;
Fig. 2 is the vacuum infusion molding process for compound schematic diagram of a kind of new type FRP material of the present invention;
Wherein: 1 cloth; 2, chopped strand; 3, performance resins; 4, vacuum bag; 5, mould; 6, thin slice; 7, double faced adhesive tape; 8, release cloth; 9, release film; 10, vacuumometer mouth is connected; 11, vacuum pumping hole is connected.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment:
About material, its component and weight percent the best are: high-performance carbon fibre cloth 1 is 50%, and the short E of cutting glass fibre 2 is 5%, and epoxy resin 3 is 45%.
Described short E glass fibre 2 length of cutting is in 6mm ~ 12mm scope.
The described short mixture cutting E glass fibre 2 and described epoxy resin 3 is as resin matrix, and both weight ratio are 1:9.
About method, in strict accordance with a kind of manufacture method of new type FRP material.
Technical testing:
FRP material is made sample, mechanics machine is tested, obtain average test result:
Tensile strength f
t=706MPa;
Elastic modulus E=92GPa;
Poisson's ratio γ=0.2
No matter new type FRP material in the present invention is from supporting capacity, ductility, or the aspects such as weather resistance, cost and operation, all to fibre reinforced composites one much progress and improvement, alternative original fibre reinforced composites and assorted fibre reinforced composite material application in practice.
Claims (9)
1. a new type FRP material, it is characterized in that: comprise the cloth 1 of high strength and high-elastic mould, the chopped strand 2 of high-elongation and performance resins 3, the hybrid resin matrix that the cloth 1 of described high strength and high-elastic mould is passed through to be mixed into the chopped strand 2 of described high-elongation and described performance resins 3 consists of new type FRP material, wherein component and weight percent are: the cloth 1 of high strength and high-elastic mould is 50 ~ 60%, the chopped strand 2 of high-elongation is 0.1 ~ 9%, and performance resins 3 is 30 ~ 50%.
2. a kind of new type FRP material according to claim 1, is characterized in that: the cloth 1 of described high strength and high-elastic mould is continuous print, adopts high-performance carbon fibre cloth or Kelvar49 aryl fiber cloth.
3. a kind of new type FRP material according to claim 1, is characterized in that: the chopped strand 2 of described high-elongation is E glass fibre, S or R glass fibre, HM-50 aramid fiber, basalt fibre.
4. a kind of new type FRP material according to claim 3, is characterized in that: the chopped strand 2 of described high-elongation is that length is in 3mm ~ 20mm scope.
5. a kind of new type FRP material according to claim 1, is characterized in that: described performance resins 3 adopts epoxy resin or vinyl ester resin.
6. a kind of new type FRP material according to claim 1, is characterized in that: in the chopped strand of the high-elongation told 2 and the mixture of described performance resins 3, both weight ratio are 1:5 ~ 1:300.
7. the preparation method of a kind of new type FRP material according to claim 1, is characterized in that: comprise the following steps:
The first step, mixes the chopped strand 2 of described high-elongation and performance resins 3, and adds viscosity-depression agent high-speed stirring evenly, obtains hybrid resin glue;
Second step, coats releasing agent at mould, the described high strength of suitable dimension (300 × 300mm ~ 1000 × 1000mm) and the cloth 1 of high-elastic mould is spread into mould and is touched, successively spreads release cloth, grid cloth and vacuum diaphragm; Connect ventilative spiral tube and resin connector, syringe, connect vacuum pump and catch pot; Injection molding tube is fixed on resin storage tank and starts perfusion, after resin distributes completely uniformly, close extraction pipe wait for that resin solidifies completely; Maintenance 24 hours rear demouldings under the normal temperature of laboratory, allow FRP together with glass board mould below special curing room maintenance 6 ~ 8 hours, finally room temperature maintenance 24 hours, obtain a kind of new type FRP material.
8. the preparation method of a kind of new type FRP material according to claim 7, is characterized in that: described viscosity-depression agent is polyethers viscosity-depression agent.
9. the preparation method of a kind of new type FRP material according to claim 7, is characterized in that: special curing room temperature is at 40 degree ~ 65 degree.
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| CN201510651574.XA CN105199321A (en) | 2015-10-10 | 2015-10-10 | Novel FRP material and preparation method thereof |
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| CN201510651574.XA CN105199321A (en) | 2015-10-10 | 2015-10-10 | Novel FRP material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310226A (en) * | 2017-08-10 | 2017-11-03 | 中南大学 | A kind of assorted fibre plate |
| CN107498893A (en) * | 2017-08-17 | 2017-12-22 | 邱明强 | The method that composite produces cinerary casket |
| CN109294267A (en) * | 2018-09-30 | 2019-02-01 | 吉林省华阳新材料研发有限公司 | A kind of fibrous composite and preparation method thereof |
| CN110406132A (en) * | 2019-07-19 | 2019-11-05 | 杭州友凯船艇有限公司 | Long filament cloth interlayer is uniformly laid with the technical solution for the silk that is chopped |
| CN111019291A (en) * | 2019-11-23 | 2020-04-17 | 南通大学 | Impact-resistant high-toughness fiber-reinforced composite material and preparation method thereof |
| CN111844822A (en) * | 2019-04-29 | 2020-10-30 | 广东轻工职业技术学院 | High-strength and high-impact-resistance discontinuous fiber reinforced thermoplastic composite material preform and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775228A (en) * | 2009-12-29 | 2010-07-14 | 金文成 | High-strength FRP material and production method and application thereof |
| CN103772908A (en) * | 2014-01-17 | 2014-05-07 | 广州大学 | Glass fiber reinforced engineering plastic plate and simple high-damping isolating bearing |
| CN103939446A (en) * | 2014-05-15 | 2014-07-23 | 湖北金力工程复合材料有限公司 | Toughening FRP spiral connecting piece and manufacturing method thereof |
| CN104725779A (en) * | 2015-02-09 | 2015-06-24 | 江苏旭日新能源科技发展有限公司 | Glass fiber reinforced plastic |
-
2015
- 2015-10-10 CN CN201510651574.XA patent/CN105199321A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775228A (en) * | 2009-12-29 | 2010-07-14 | 金文成 | High-strength FRP material and production method and application thereof |
| CN103772908A (en) * | 2014-01-17 | 2014-05-07 | 广州大学 | Glass fiber reinforced engineering plastic plate and simple high-damping isolating bearing |
| CN103939446A (en) * | 2014-05-15 | 2014-07-23 | 湖北金力工程复合材料有限公司 | Toughening FRP spiral connecting piece and manufacturing method thereof |
| CN104725779A (en) * | 2015-02-09 | 2015-06-24 | 江苏旭日新能源科技发展有限公司 | Glass fiber reinforced plastic |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310226A (en) * | 2017-08-10 | 2017-11-03 | 中南大学 | A kind of assorted fibre plate |
| CN107498893A (en) * | 2017-08-17 | 2017-12-22 | 邱明强 | The method that composite produces cinerary casket |
| CN109294267A (en) * | 2018-09-30 | 2019-02-01 | 吉林省华阳新材料研发有限公司 | A kind of fibrous composite and preparation method thereof |
| CN111844822A (en) * | 2019-04-29 | 2020-10-30 | 广东轻工职业技术学院 | High-strength and high-impact-resistance discontinuous fiber reinforced thermoplastic composite material preform and preparation method thereof |
| CN111844822B (en) * | 2019-04-29 | 2022-06-21 | 广东轻工职业技术学院 | High-strength and high-impact-resistance discontinuous fiber reinforced thermoplastic composite material preform and preparation method thereof |
| CN110406132A (en) * | 2019-07-19 | 2019-11-05 | 杭州友凯船艇有限公司 | Long filament cloth interlayer is uniformly laid with the technical solution for the silk that is chopped |
| CN111019291A (en) * | 2019-11-23 | 2020-04-17 | 南通大学 | Impact-resistant high-toughness fiber-reinforced composite material and preparation method thereof |
| CN111019291B (en) * | 2019-11-23 | 2022-08-16 | 南通大学 | Impact-resistant high-toughness fiber-reinforced composite material and preparation method thereof |
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Application publication date: 20151230 |