CN101538398A - Preparation method of aramid fiber/epoxy resin composite material - Google Patents
Preparation method of aramid fiber/epoxy resin composite material Download PDFInfo
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- CN101538398A CN101538398A CN200910048983A CN200910048983A CN101538398A CN 101538398 A CN101538398 A CN 101538398A CN 200910048983 A CN200910048983 A CN 200910048983A CN 200910048983 A CN200910048983 A CN 200910048983A CN 101538398 A CN101538398 A CN 101538398A
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- aramid fiber
- epoxy resin
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- maleic anhydride
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Abstract
The invention relates to a preparation method of aramid fiber/epoxy resin composite material which is used for aero-generator rotor blade. Firstly, maleic anhydride graft modification treatment is carried out on aramid fiber; then, treated aramid fiber is compounded with epoxy resin to carry out mechanical blending, and the weight percentage of aramid fiber is 10-20% of the blended powder; the blended powder is put into a stainless steel mould for press forming, and is sintered at high temperature to prepare maleic anhydride graft modified aramid fiber/epoxy resin composite material. The maleic anhydride modifier comprises the following components: maleic anhydride, ethanol and ethylene diamine tetraacetic acid; the invention has simple process method and low cost without environmental pollution; the prepared composite material has excellent mechanical property.
Description
Technical field
The present invention relates to a kind of preparation method of aramid fiber/epoxy resin composite material, be specifically related to the preparation method of the matrix material that a kind of wind power generation spinner blade uses.
Background technology
Clear energy sources is the problem be concerned about of people in the world, and wind-power electricity generation then is one of significant clean energy.The AWEA of AWEA (American Wind Energy Association) report world wind-power electricity generation ability is in continuous expansion.The part of world's wind power generation plant most critical is a rotor, and the most crucial part of rotor then is a blade.The application of matrix material on wind-power electricity generation in fact mainly is exactly the application on the wind-power electricity generation spinner blade.The wind-power electricity generation spinner blade accounts for the 15%-20% of the whole installation cost of wind-power electricity generation, and the material technology of making blade has decisive to its cost.Therefore, the selection of material, optimum preparation condition is very important to the wind-power electricity generation spinner blade.The material that the wind-power electricity generation spinner blade is used is selected different matrix materials for use according to the blade length difference, and what the most generally adopt at present is glass fiber reinforced polyester resin, glass fiber reinforced epoxy resin and carbon-fibre reinforced epoxy resin.Best from the performance carbon-fibre reinforced epoxy resin, glass fiber reinforced epoxy resin takes second place.With the increase of power, require blade length to increase, with the increase of blade length, the quality of blade also increases thereupon, and therefore, wind-power electricity generation is because a large amount of carbon-fibre composite that adopts causes that cost increases.
Summary of the invention
For alleviating the quality of wind-power electricity generation spinner blade, the present invention discloses a kind of preparation method of aramid fiber/epoxy resin composite material, adopt modified by maleic acid anhydride graft aramid fiber filling epoxy resin, effectively improved the compatibility between epoxy resin-base and the aramid fiber, prepare matrix material with more excellent mechanical property, and maleic anhydride graft treatment process method is simple, and cost is low, good manufacturability.
A kind of preparation method of aramid fiber/epoxy resin composite material is characterized in that:
A) at first aramid fiber being carried out modified by maleic acid anhydride graft handles;
B) aramid fiber after will handling by weight percentage 10-20% carry out mechanical blending with the Resins, epoxy of 80-90%;
C) mixed powder is put into plate vulcanization machine die for molding: earlier furnace temperature is risen to 110 ℃, kept 60 minutes, the premolding blank is carried out preformed, pressure-controlling is at 10-15MPa, is warming up to 190 ℃-220 ℃ with 60 ℃/hour speed again, is incubated 1 hour, make the molding compound moulding
D) adopt then and pressure is removed after cooling to 80 ℃ with the stove temperature reduction way, the matrix material after the compression molding is taken out together with mould, be cooled to room temperature, obtain matrix material.
Maleic anhydride modified processing 1A), the weight percentages of components of properties-correcting agent is: maleic anhydride: 10-20%, ethanol: 70-85%, ethylenediamine tetraacetic acid (EDTA): 5-10%.
Described aramid fiber/epoxy resin composite material is used to make aero-generator rotor blade.
Advantage of the present invention and positively effect are: adopt modified by maleic acid anhydride graft aramid fiber filling epoxy resin, effectively improved the compatibility between epoxy resin-base and the aramid fiber, prepare the matrix material of mechanical property excellence, environmentally safe, and maleic anhydride graft treatment process method is simple, cost is low, good manufacturability.
Embodiment
Embodiment 1:
The weight percentages of components of matrix material is: aramid fiber: 10%, and Resins, epoxy: 90%.
Maleic anhydride modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 10%: ethylenediamine tetraacetic acid (EDTA) 85%: 5%.
The Composite Preparation process is as follows:
At first, aramid fiber being carried out modified by maleic acid anhydride graft handles.Aramid fiber after handling is carried out mechanical blending with Resins, epoxy, then mixed powder is put into plate vulcanization machine die for molding, earlier furnace temperature is risen to 110 ℃, kept 60 minutes, the premolding blank is carried out preformed, pressure-controlling is at 10MPa, and then be warming up to 220 ℃ with 60 ℃/hour speed, be incubated 1 hour, make the molding compound moulding, adopt then and pressure is removed after cooling to 80 ℃ with the stove temperature reduction way, the matrix material after the compression molding is taken out together with mould, be cooled to room temperature, obtain matrix material.
The matrix material for preparing is carried out mechanical test, and its tensile strength can reach 175Mpa.
Embodiment 2:
The weight percentages of components of matrix material is: aramid fiber: 20%, and Resins, epoxy: 80%.
Maleic anhydride modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 20%: ethylenediamine tetraacetic acid (EDTA) 70%: 5%.
The Composite Preparation process is as follows:
At first, aramid fiber being carried out modified by maleic acid anhydride graft handles.Aramid fiber after handling is carried out mechanical blending with Resins, epoxy, then mixed powder is put into plate vulcanization machine die for molding, earlier furnace temperature is risen to 110 ℃, kept 60 minutes, the premolding blank is carried out preformed, pressure-controlling is at 15MPa, and then be warming up to 190 ℃ with 60 ℃/hour speed, be incubated 1 hour, make the molding compound moulding, adopt then and pressure is removed after cooling to 80 ℃ with the stove temperature reduction way, the matrix material after the compression molding is taken out together with mould, be cooled to room temperature, obtain matrix material.
The matrix material for preparing is carried out mechanical test, and its shock strength can reach 90KJ/mm
2
Embodiment 3:
The weight percentages of components of matrix material is: aramid fiber: 15%, and Resins, epoxy: 85%.
Maleic anhydride modified dose of each weight percentages of components is as follows: maleic anhydride: ethanol 19%: ethylenediamine tetraacetic acid (EDTA) 80%: 1%.
The Composite Preparation process is as follows:
At first, aramid fiber being carried out modified by maleic acid anhydride graft handles.Aramid fiber after handling is carried out mechanical blending with Resins, epoxy, then mixed powder is put into plate vulcanization machine die for molding, earlier furnace temperature is risen to 110 ℃, kept 60 minutes, the premolding blank is carried out preformed, pressure-controlling is at 12MPa, and then be warming up to 200 ℃ with 60 ℃/hour speed, be incubated 1 hour, make the molding compound moulding, adopt then and pressure is removed after cooling to 80 ℃ with the stove temperature reduction way, the matrix material after the compression molding is taken out together with mould, be cooled to room temperature, obtain matrix material.Matrix material according to above-mentioned preparation method's preparation records not 245MPa of its flexural strength according to standard.
Routine in contrast, under identical matrix material component and composite material preparation process, graft modification aramid fiber reinforced epoxy matrix material tensile strength is not 160MPa, and as can be seen, modified by maleic acid anhydride graft is handled for the matrix material tensile property and improved obviously.
Claims (3)
1, a kind of preparation method of aramid fiber/epoxy resin composite material is characterized in that:
A) at first aramid fiber being carried out modified by maleic acid anhydride graft handles;
B) aramid fiber after will handling by weight percentage 10-20% carry out mechanical blending with the Resins, epoxy of 80-90%;
C) mixed powder is put into plate vulcanization machine die for molding: earlier furnace temperature is risen to 110 ℃, kept 60 minutes, the premolding blank is carried out preformed, pressure-controlling is at 10-15MPa, is warming up to 190 ℃-220 ℃ with 60 ℃/hour speed again, is incubated 1 hour, make the molding compound moulding
D) adopt then and pressure is removed after cooling to 80 ℃ with the stove temperature reduction way, the matrix material after the compression molding is taken out together with mould, be cooled to room temperature, obtain matrix material.
2, the preparation method of a kind of aramid fiber/epoxy resin composite material according to claim 1, it is characterized in that: maleic anhydride modified processing 1A), the weight percentages of components of properties-correcting agent is: maleic anhydride: 10-20%, ethanol: 70-85%, ethylenediamine tetraacetic acid (EDTA): 5-10%.
3, the preparation method of a kind of aramid fiber/epoxy resin composite material according to claim 1 is characterized in that: described aramid fiber/epoxy resin composite material is used to make aero-generator rotor blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048983A CN101538398A (en) | 2009-04-09 | 2009-04-09 | Preparation method of aramid fiber/epoxy resin composite material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910048983A CN101538398A (en) | 2009-04-09 | 2009-04-09 | Preparation method of aramid fiber/epoxy resin composite material |
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| CN101538398A true CN101538398A (en) | 2009-09-23 |
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| CN200910048983A Pending CN101538398A (en) | 2009-04-09 | 2009-04-09 | Preparation method of aramid fiber/epoxy resin composite material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131455A (en) * | 2013-05-02 | 2014-11-05 | 黑龙江弘宇短纤维新材料股份有限公司 | Preparation method of pre-treated short aramid fiber used for rubber product |
| CN104629364A (en) * | 2013-11-12 | 2015-05-20 | 黑龙江鑫达企业集团有限公司 | Aramid fiber/polyimide composite material and preparation method thereof |
| CN105803789A (en) * | 2016-03-29 | 2016-07-27 | 深圳市新纶科技股份有限公司 | Surface modification aramid fiber and preparation method thereof |
| CN108623999A (en) * | 2018-03-12 | 2018-10-09 | 合肥尚强电气科技有限公司 | Composite material for wind driven generator blade and preparation method thereof |
| WO2019114643A1 (en) * | 2017-12-15 | 2019-06-20 | 南京林业大学 | Aramid-based epoxy resin and preparation method thereof |
-
2009
- 2009-04-09 CN CN200910048983A patent/CN101538398A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104131455A (en) * | 2013-05-02 | 2014-11-05 | 黑龙江弘宇短纤维新材料股份有限公司 | Preparation method of pre-treated short aramid fiber used for rubber product |
| CN104629364A (en) * | 2013-11-12 | 2015-05-20 | 黑龙江鑫达企业集团有限公司 | Aramid fiber/polyimide composite material and preparation method thereof |
| CN105803789A (en) * | 2016-03-29 | 2016-07-27 | 深圳市新纶科技股份有限公司 | Surface modification aramid fiber and preparation method thereof |
| CN105803789B (en) * | 2016-03-29 | 2018-01-02 | 深圳市新纶科技股份有限公司 | A kind of surface modification of aramid fiber and preparation method thereof |
| WO2019114643A1 (en) * | 2017-12-15 | 2019-06-20 | 南京林业大学 | Aramid-based epoxy resin and preparation method thereof |
| US11279794B2 (en) | 2017-12-15 | 2022-03-22 | Nanjing Forestry University | Aramid-based epoxy resin and preparation method thereof |
| CN108623999A (en) * | 2018-03-12 | 2018-10-09 | 合肥尚强电气科技有限公司 | Composite material for wind driven generator blade and preparation method thereof |
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Open date: 20090923 |