CN103129053A - Manufacture method for large composite carbon fiber products - Google Patents
Manufacture method for large composite carbon fiber products Download PDFInfo
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- CN103129053A CN103129053A CN2011103825657A CN201110382565A CN103129053A CN 103129053 A CN103129053 A CN 103129053A CN 2011103825657 A CN2011103825657 A CN 2011103825657A CN 201110382565 A CN201110382565 A CN 201110382565A CN 103129053 A CN103129053 A CN 103129053A
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Abstract
The invention discloses a manufacture method and a manufacture process for large composite carbon fiber products. The manufacture method for the large composite carbon fiber products is applicable to a large carbon fiber product market at the present time. The basic manufacture process includes the following steps: raw material calculation, epoxy resin T31 colloid prefabrication, carbon fiber cloth cutting, high temperature coating, low temperature cooling, model vacuum processing, model tightening molding, and finished product firing. The invention further discloses a manufacture method for large flat carbon fiber composite products with the size of 0.6 cubic meter, the thickness of 8 cm, the length of 5 m, the width of 1.5 m and the large flat carbon fiber composite products with the size of 0.4 cubic meter, the thickness of 5 cm, the length of 8 m, the width of 1 m. According to the manufacture method for the large composite carbon fiber products, the bottle neck that the large composite carbon fiber products are hardly manufactured in a domestic carbon market at present is broken through. Through optimization to a process method and innovation to a composite method, the problems that the composite carbon fiber products are small in limited scope of area and thickness are solved. The manufacture method for the large composite carbon fiber products can be applied to the field required by novel materials such like automobile shells, ship hull shells and the like.
Description
Technical field:
The present invention relates to a kind of manufacture craft and method of large-scale, large scale carbon fiber reinforce plastic goods.
Background technology:
Present civilian carbon fiber product adopt many methods be wound around, roll, mold pressing, vacuum forming, inflation.The defective of its preparation method is to be difficult to make large scale, large-scale carbon fiber reinforce plastic goods, the proportioning of preparation method of the present invention to carbon cloth, epoxide-resin glue, curing agent, the steps such as chilling temperature have been carried out the experiment innovation, result shows: in conjunction with to being rigid in checking up of operation, can disposablely make large-sized carbon fiber reinforce plastic goods on preparation method improved basis.
The carbon fiber reinforce plastic material is better than common material at aspects such as intensity, proportion, physics patience, tensile strength, in example two of the present invention, the goods shore hardness reaches 98HD, intensity is much larger than general materials such as steel, advantage with high strength, high tenacity can better be applied to body of a motor car material, hull material, aerospace field.
Summary of the invention:
The object of the invention is to break through present carbon fiber reinforce plastic product size limitation little, simple in structure, by the improvement of process for making, provide a kind of method of the disposable machine-shaping to large scale, large-scale carbon fiber reinforce plastic goods.
The medium-and-large-sized carbon fiber reinforce plastic goods of the present invention are by 12K carbon cloth, epoxy resin, T
31Curing agent (or 593 curing agent), dibutyl ester, compound through raw material calculatings, carbon cloth cutting, manually outfit, colloid preparation, coating, oven dry, press mold, vacuumize, solidify and make.
Method step and the technological process of the large-scale carbon fiber reinforce plastic goods of the present invention are as follows:
1) preparation: cut out in advance the required two-way carbon cloth of each several part according to designed carbon fiber moulded dimension, 12K (colloid proportioning corresponding to other K value changes) is got in the unification of two-way carbon cloth standard, institute's cutting carbon cloth is demarcated stand-by with label sequence number, cleaning mould inboard makes it totally level and smooth.
2) epoxy resin is heated to 30-35 ℃, then adds T
31Curing agent (or 593 curing agent), dibutyl ester mixing and stirring form liquid epoxy resin colloid;
3) consumption of each component of aforementioned epoxy resins glue is: take epoxy resin as 100%, T
31Curing agent is that 20-30%, the dibutyl ester of epoxy resin is the 5-10% of epoxy resin.
4) indoor lower than the temperature conditions of 5 ℃ under, the two-way carbon cloth that tiling one deck 12K cuts out in advance on mould, then be coated with one deck step 2) preparation epoxide-resin glue, be right after at the synthetic carbon cloth of surface coverage one deck of epoxy glue layer, then again in surface-coated one deck step 2 of synthetic carbon cloth) epoxide-resin glue of preparation, be right after at the synthetic carbon cloth of this layer epoxy resin layer surface coverage, reciprocal with this, until required thickness.
5) carbon fibre preform that MULTILAYER COMPOSITE is good, with securing member fix and be evacuated after put it into (the large-scale even heat treatment of employing external electric) in baking oven, be heated to 50-70 ℃, be incubated stopped heating after 60-80 minute, take out model after naturally cooling 6-8 hour.
6) open mould, take out in type carbon fiber reinforce plastic goods, it is carried out placing 50-60 hour after trimming, polishing, can make finished product.
Description of drawings:
1) as Figure of description 1:(1) as shown in the two-way carbon cloth bottom of 12K, the bottom invests in mould fixing, the obtained colloid layer of top coating.(2) alternately be coated with shown in (3) colloid, cover and to cut out in advance carbon cloth.(N) last coating layer shown in, its coating colloid includes dibutyl ester, plays the softening elastic reaction that increases, and determines addition by product property in concrete production.
2) as Figure of description 2: be depicted as the illustraton of model of embodiment one, this embodiment is rectangular structure, and solid space is simple in structure, the baroque goods of solid space, and its technique is cooling, oven dry workshop section step adjusts accordingly.
The specific embodiment:
Embodiment one:
1) cut out 78 layers of the two-way carbon cloths of 12K, weight is 400KG, cuts out by volume to be long 8 meters, the layer of cloth of wide 1 meter.
2) take the method for conventional molding to make the upper die and lower die of required size, the mould inboard is cleaned out smoothly.
3) epoxy resin is heated to 30 ℃, then adds T
31Curing agent, dibutyl ester mixing and stirring form liquid epoxy resin colloid;
4) consumption of each component of epoxide-resin glue is: take epoxy resin as 100%, curing agent be epoxy resin 3%, dibutyl ester is 4% of epoxy resin, content of epoxy resin 238KG, T
31Hardener dose 48KG, dibutyl ester consumption 64KG.
5) 4 ℃ of indoor temperatures, under the condition of humidity 20%, at counterdie inner surface coating one antireflective film layer agent acetone, then be coated with one deck step 4) preparation epoxide-resin glue, be right after at the synthetic carbon cloth of surface coverage one deck of epoxy glue layer, then again in surface-coated one deck step 3 of synthetic carbon cloth) epoxide-resin glue of preparation, be right after at the synthetic carbon cloth of this layer epoxy resin layer surface coverage, reciprocal with this, coating speed is quick, reach 5 centimetres of required thickness within the time of calculating, upper film and counterdie are closed film, fix and be evacuated with securing member and be heated to 150 ℃ at indoor electric heater afterwards, be incubated stopped heating after 30 minutes, the cooling nature takes out model after cooling 5 hours.
6) open mould, take out in type carbon fiber composite article, it is carried out placing 50 hours after trimming, polishing, can make finished product.
Embodiment two:
1) cut out 125 layers of the two-way carbon cloths of 12K, weight is 461KG, and cutting out by volume is 5 meters, the layer of cloth of wide 1.5 meters.
2) take the method for conventional molding to make the upper die and lower die of required size, the mould inboard is cleaned out smoothly.
3) epoxy resin is heated to 27 ℃, then adds 593 curing agent, dibutyl ester mixing and stirring, form liquid epoxy resin colloid;
4) consumption of each component of epoxide-resin glue is: take epoxy resin as 100%, 593 curing agent be epoxy resin 5%, dibutyl ester is 5% of epoxy resin, content of epoxy resin 127KG, 593 hardener dose 26KG, dibutyl ester consumption 34KG.
5) 3 ℃ of indoor temperatures, under the condition of humidity 25%, at counterdie inner surface coating one antireflective film layer agent acetone, then be coated with one deck step 4) preparation epoxide-resin glue, be right after at the synthetic carbon cloth of surface coverage one deck of epoxy glue layer, then again in surface-coated one deck step 3 of synthetic carbon cloth) epoxide-resin glue of preparation, be right after at the synthetic carbon cloth of this layer epoxy resin layer surface coverage, reciprocal with this, coating speed is quick, reach 8 centimetres of required thickness within the time of calculating, upper film and counterdie are closed film, fix and be evacuated with securing member and be heated to 150 ℃ at indoor electric heater afterwards, be incubated stopped heating after 30 minutes, the cooling nature takes out model after cooling 5 hours.
6) open mould, take out in type carbon fiber composite article, it is carried out placing 40 hours after trimming, polishing, can make finished product.
Claims (10)
1. the preparation method of large-scale carbon fiber reinforce plastic goods, the medium-and-large-sized carbon fiber reinforce plastic goods of the present invention are by 12K carbon cloth, epoxy resin, T
31Curing agent, dibutyl ester, compound through raw material calculatings, carbon cloth cutting, manually outfit, colloid preparation, coating, oven dry, press mold, vacuumize, solidify and make.
2. carbon cloth K value as claimed in claim 1 is determined according to industrial use, and the K value is less, and weight per unit area is less, and thickness is less, the explained hereafter time lengthening, and difficulty increases thereupon.
3. epoxy resin as claimed in claim 1 is preheated to 10-15 ℃ before making, and keeps this active temperature, must guarantee to heat refrigeration plant in the workshop.
4. T31 curing agent as claimed in claim 1 is that stronger hydrophobicity solidifies adminicle, and in 40% left and right, it is between 25-30% that the T31 curing agent is chosen ratio to room temperature lower than 5 ℃, relative humidity.
5. dibutyl ester as claimed in claim 1 only is used for the carbon fiber reinforce plastic product surface, plays plasticization, and there is emollescence on the integrated member surface and makes it possess elasticity, and consumption is the 5-8% of epoxy resin.
6. colloid outfit as claimed in claim 1 is complete, skillfully carries out the carbon cloth coating, the colloid coating, and repeatedly to desired thickness, temperature is kept, and the fiber cloth transverse and longitudinal is staggered, and angle is 90 degree.
7. baking step as claimed in claim 1 adopts the even heat treatment of external electric, is heated to 150-170 ℃, is incubated stopped heating after 60-80 minute, naturally cooling 6-8 hour.
8. the large-scale component for the structure of having living space as claimed in claim 1 adopts mould drilling, vavuum pump air-discharging vacuum processed.
9. when T31 curing agent as claimed in claim 4 solidifies, because of large-scale component Production Time longer, use acetone and delay hardening time, the acetone consumption is the 10-15% of curing agent.
10. after mould vacuum as claimed in claim 8, utilize 450-500 newton's pressure to carry out the pressing mold processing, solidify semi-finished product and make finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103825657A CN103129053A (en) | 2011-11-28 | 2011-11-28 | Manufacture method for large composite carbon fiber products |
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| CN2011103825657A CN103129053A (en) | 2011-11-28 | 2011-11-28 | Manufacture method for large composite carbon fiber products |
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| CN103129053A true CN103129053A (en) | 2013-06-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082125A (en) * | 1992-07-31 | 1994-02-16 | 佐治亚科技研究公司 | Soft multiply predipped yarn, with its product of making and preparation method |
| CN1668433A (en) * | 2002-07-18 | 2005-09-14 | 三菱丽阳株式会社 | Prepreg, intermediate material for forming FRP, and method for production thereof and method for production of fiber-reinforced composite material |
| CN101528816A (en) * | 2006-04-27 | 2009-09-09 | 帝人株式会社 | Composite carbon fiber sheet |
| CN101678616A (en) * | 2007-03-29 | 2010-03-24 | 古瑞特（英国）有限公司 | Fibre-reinforced composite moulding and manufacture thereof |
| CN102049895A (en) * | 2009-10-28 | 2011-05-11 | 瑞鸿复材企业股份有限公司 | Continuous fiber laminated plate and preparation method thereof |
-
2011
- 2011-11-28 CN CN2011103825657A patent/CN103129053A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1082125A (en) * | 1992-07-31 | 1994-02-16 | 佐治亚科技研究公司 | Soft multiply predipped yarn, with its product of making and preparation method |
| CN1668433A (en) * | 2002-07-18 | 2005-09-14 | 三菱丽阳株式会社 | Prepreg, intermediate material for forming FRP, and method for production thereof and method for production of fiber-reinforced composite material |
| CN101528816A (en) * | 2006-04-27 | 2009-09-09 | 帝人株式会社 | Composite carbon fiber sheet |
| CN101678616A (en) * | 2007-03-29 | 2010-03-24 | 古瑞特（英国）有限公司 | Fibre-reinforced composite moulding and manufacture thereof |
| CN102049895A (en) * | 2009-10-28 | 2011-05-11 | 瑞鸿复材企业股份有限公司 | Continuous fiber laminated plate and preparation method thereof |
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Application publication date: 20130605 |