CN102002836A - Method for enhancing permeability of prepregs - Google Patents
Method for enhancing permeability of prepregs Download PDFInfo
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- CN102002836A CN102002836A CN 201010538281 CN201010538281A CN102002836A CN 102002836 A CN102002836 A CN 102002836A CN 201010538281 CN201010538281 CN 201010538281 CN 201010538281 A CN201010538281 A CN 201010538281A CN 102002836 A CN102002836 A CN 102002836A
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- reinforcing material
- prepreg
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- impregnation
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Abstract
The invention relates to a method for enhancing the permeability of prepregs, relating to a method for enhancing the permeability of the prepregs and solving the problems of poorer permeability of the prepregs processed by the traditional method. The method comprises the following steps of: preprocessing reinforcing materials to be processed, then delivering into a gum dipping tank, and carrying out gum dipping on the preprocessed reinforcing materials by adopting two dandy rolls in a gum solution inside the gum dipping tank; then carrying out gum extrusion above the gum surface of the gum dipping tank by adopting a gum extruding roll; then carrying out the gum dipping again in the gum solution inside the gum dipping tank by adopting one dandy roll, carrying out the gum extrusion again, and then delivering into a curing oven with the internal temperature of 100-120 DEG C for precuring so as to obtain the prepregs. The invention is suitable for the dipping of glass cloths or carbon cloths.
Description
Technical field
The present invention relates to improve the method for prepreg impregnability.
Background technology
Prepreg is to make resin matrix and the composition that strengthens body, is the intermediate materials of making composite.Performance of composites depends on the quality of prepreg to a great extent.Prepreg has been widely used in fields such as Aero-Space, the energy, automobile and physical culture at present, and therefore the research to prepreg is significant.
Impregnability in the prepreg process is an important evaluation index of prepreg.The amount of the glue of fiber or textile impregnation is few, the inner dipping of prepreg inhomogeneous, and the prepreg lighter in weight can cause the follow-up product of making in the process defective, can't satisfy the quantity-produced needs.For 3K carbon cloth or the fine and close glass cloth of braiding, more existing technologies and method are difficult to guarantee impregnability at present, and this will influence the use and the final performance of composites of prepreg.
Summary of the invention
The present invention is in order to solve the relatively poor problem of impregnability of the prepreg after existing method is handled, thereby a kind of method that improves the prepreg impregnability is provided.
A kind of method that improves the prepreg impregnability, it is realized by following steps:
Step 1, pending reinforcing material is carried out preliminary treatment, obtain pretreated reinforcing material;
Step 3, the reinforcing material of the first time behind the impregnation that step 2 is obtained carry out plastic squeeze above adopting the glue face of plastic squeeze roller in steeping vat, obtain the reinforcing material after the plastic squeeze;
Reinforcing material after step 4, the plastic squeeze that will step 3 obtains adopts in the glue of a dandy roll in steeping vat and carries out impregnation once more, obtains the reinforcing material behind the impregnation for the second time;
Described in the step 1 pending reinforcing material is carried out preliminary treatment, its concrete grammar is: under the traction of motor, with the speed of 0.3～0.8 meter of per minute pending reinforcing material being sent into internal temperature is that 150 ℃ heat-treatment furnace is removed impurity.
Pending reinforcing material described in the step 1 is glass cloth or carbon cloth.Especially weave fine and close glass cloth or 3K carbon cloth.
Beneficial effect: the present invention is by the method for twice impregnation, and the impregnability of the prepreg of acquisition is better.Existing on year-on-year basis method, the impregnability of its reinforcing material has improved 10%～20% on year-on-year basis.The present invention is particularly useful for the dipping to 3K carbon cloth or glass cloth.
Description of drawings
Fig. 1 is the immersing glue process schematic diagram of method of the present invention; Fig. 2 is the impregnability design sketch that adopts the glass cloth after this method is handled in the specific embodiment of the invention one; Fig. 3 is the impregnability design sketch that adopts the glass cloth after existing method is handled in the specific embodiment of the invention one.
The specific embodiment
The specific embodiment one, this specific embodiment is described in conjunction with Fig. 1, a kind of method that improves the prepreg impregnability, it is realized by following steps:
Step 1, pending reinforcing material 1 is carried out preliminary treatment, obtain pretreated reinforcing material;
Step 3, the reinforcing material of the first time behind the impregnation that step 2 is obtained carry out plastic squeeze, the reinforcing material after the acquisition plastic squeeze above adopting the glue face of plastic squeeze roller 4 steeping vat 2 in;
Reinforcing material after step 4, the plastic squeeze that will step 3 obtains adopts in the glue of a dandy roll 3 in steeping vat and carries out impregnation once more, obtains the reinforcing material behind the impregnation for the second time;
Described in the step 1 pending reinforcing material is carried out preliminary treatment, its concrete grammar is: under the traction of motor, with the speed of 0.3 meter～0.8 meter of per minute pending reinforcing material being sent into internal temperature is that 150 ℃ heat-treatment furnace is removed impurity.
Pending reinforcing material described in the step 1 is glass cloth or carbon cloth.Especially weave fine and close glass cloth or 3K carbon cloth.
The present invention at first adopts two dandy rolls that pretreated reinforcing material is carried out impregnation, purpose is to make the abundant impregnation of reinforcing material, reinforcing material inside has been immersed the glue of nearly saturation state after the plastic squeeze for the first time, adopt again and carry out impregnation in the glue of a dandy roll 3 in steeping vat once more and after the secondary plastic squeeze, make the inner glue of the reinforcing material state that reaches capacity.
The invention process process is easy, and is simple to operate, and can be used in the immersing glue process of polytype reinforcing material and different resin matrix.
The specific embodiment two, this specific embodiment and the specific embodiment one described a kind of difference that improves the method for prepreg impregnability be, the curing oven of in the step 5 reinforcing material after the plastic squeeze being sent into internal temperature and be 110 ℃ from steeping vat 2 carries out obtaining prepreg 5 after the precuring.
The specific embodiment three, in conjunction with concrete parameter, the effect of checking the inventive method: select for use the fine and close glass cloth of braiding one volume (loose 1 meter, long 100 meters) under the traction of motor, sending into internal temperature with the speed of 0.6 meter of per minute is that 150 ℃ heat-treatment furnace is heat-treated, enter steeping vat after removing surperficial impurity (dedusting), near the position of bottom two dandy rolls are set at steeping vat glass cloth is carried out impregnation, remove unnecessary glue by the plastic squeeze roller that is positioned at steeping vat glue face top then, return in the glue in the steeping vat impregnation once more again, and then to send into internal temperature after the plastic squeeze be 100 ℃ of curing ovens, make the resin precuring in the glass cloth, prepreg is made in rolling then.In immersing glue process, above steeping vat, increase the purpose of one group of plastic squeeze roller: the one, in order to increase the tension force of glass cloth, be beneficial to impregnation; The 2nd, increase pressure to glue, be beneficial to impregnation.The purpose of adding dandy roll in steeping vat is that glue fully is impregnated in the glass cloth, and the purpose that increases by one group of dandy roll is that the glue body fully is impregnated in the glass cloth.Because the fine and close glass cloth inside of braiding is difficult for soaking into, so, its impregnability of raising flooded repeatedly by twice.It soaks into effect as shown in Figure 2.
The present invention also can only adopt the mode that the plastic squeeze roller is set at the steeping vat afterbody, but the mode of soaking into effect and twice impregnation of employing of this mode, and impregnability is relatively poor.It soaks into effect as shown in Figure 3.
Comparison diagram 2 and Fig. 3 can find, its dipping of mode that adopts twice impregnation fully adopts the mode of soaking, and its dipping is insufficient, and it is relatively poor to soak into effect.
Claims (7)
1. method that improves the prepreg impregnability, it is characterized in that: it is realized by following steps:
Step 1, pending reinforcing material (1) is carried out preliminary treatment, obtain pretreated reinforcing material;
Step 2, the pretreated reinforcing material that obtains after the step 1 is sent into steeping vat (2), and adopt two dandy rolls (3) that pretreated reinforcing material is carried out impregnation in the glue in steeping vat (2), obtain the reinforcing material behind the impregnation for the first time;
Step 3, the reinforcing material of the first time behind the impregnation that step 2 is obtained adopt the glue face top of plastic squeeze roller (4) steeping vat (2) in to carry out plastic squeeze, the reinforcing material after the acquisition plastic squeeze;
Reinforcing material after step 4, the plastic squeeze that will step 3 obtains adopts in the glue of a dandy roll (3) in steeping vat and carries out impregnation once more, obtains the reinforcing material behind the impregnation for the second time;
Step 5, reinforcing material the glue face top employing plastic squeeze roller (4) steeping vat (2) in of the second time behind the impregnation that step 4 is obtained carry out plastic squeeze once more, and the reinforcing material after the plastic squeeze is sent into internal temperature from steeping vat be that 100 ℃～120 ℃ curing oven carries out obtaining prepreg (5) after the precuring.
2. a kind of method that improves the prepreg impregnability according to claim 1, it is characterized in that, described in the step 1 pending reinforcing material is carried out preliminary treatment, its concrete grammar is: under the traction of motor, with the speed of 0.3～0.8 meter of per minute pending reinforcing material being sent into internal temperature is that 150 ℃ heat-treatment furnace is removed impurity.
3. a kind of method that improves the prepreg impregnability according to claim 2 is characterized in that, under the traction of motor, with the speed of 0.6 meter of per minute pending reinforcing material being sent into internal temperature is that 150 ℃ heat-treatment furnace carries out finishing after the dedusting.
4. a kind of method that improves the prepreg impregnability according to claim 1 is characterized in that pending reinforcing material is a glass cloth described in the step 1.
5. a kind of method that improves the prepreg impregnability according to claim 1 is characterized in that pending reinforcing material is a carbon cloth described in the step 1.
6. a kind of method that improves the prepreg impregnability according to claim 1 is characterized in that pending reinforcing material described in the step 1 is the 3K carbon cloth.
7. a kind of method that improves the prepreg impregnability according to claim 1 is characterized in that, the curing oven of in the step 5 reinforcing material after the plastic squeeze being sent into internal temperature and be 110 ℃ from steeping vat (2) carries out obtaining prepreg (5) after the precuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010538281 CN102002836A (en) | 2010-11-10 | 2010-11-10 | Method for enhancing permeability of prepregs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010538281 CN102002836A (en) | 2010-11-10 | 2010-11-10 | Method for enhancing permeability of prepregs |
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| CN102002836A true CN102002836A (en) | 2011-04-06 |
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| CN 201010538281 Pending CN102002836A (en) | 2010-11-10 | 2010-11-10 | Method for enhancing permeability of prepregs |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313686A (en) * | 2011-07-28 | 2012-01-11 | 哈尔滨工业大学 | Method for measuring internal permeability of prepreg with three-dimensional space analysis |
| CN102560928A (en) * | 2012-01-09 | 2012-07-11 | 湖南南方搏云新材料有限责任公司 | Device for continuous carbon felt impregnation |
| CN103131345A (en) * | 2011-12-05 | 2013-06-05 | 何信定 | Gummed cloth and manufacturing method of gummed cloth |
| CN104056752A (en) * | 2014-06-19 | 2014-09-24 | 四川省达州质量技术监督检验测试中心 | Fully-automatic dipping, lifting and drying film coater |
| CN104153137A (en) * | 2013-05-14 | 2014-11-19 | 台嘉玻璃纤维有限公司 | Against-water-type flat fiber-opening device and method for glass fiber cloth |
| CN105345945A (en) * | 2015-12-11 | 2016-02-24 | 广东生益科技股份有限公司 | Impregnation method and impregnation device of reinforced material |
| CN106881778A (en) * | 2017-03-21 | 2017-06-23 | 常州龙途新材料科技有限公司 | A kind of preparation method of continuous glass-fiber rubber prepreg |
| CN107675387A (en) * | 2017-10-24 | 2018-02-09 | 哈尔滨工业大学 | A kind of device that resinous coat processing is carried out to pbo fiber surface and the method that resin coating is carried out using the device |
| CN110106561A (en) * | 2019-04-23 | 2019-08-09 | 英鸿纳米科技股份有限公司 | A kind of preparation method of antibacterial nanofiber membrane |
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| CN1872760A (en) * | 2006-03-31 | 2006-12-06 | 广东生益科技股份有限公司 | Method and set for well immersional wetting reinforcing material and liquid resin |
| CN101071191A (en) * | 2007-06-19 | 2007-11-14 | 上海晓宝增强塑料有限公司 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
| CN101139172A (en) * | 2007-08-22 | 2008-03-12 | 北京玻钢院复合材料有限公司 | Glass fiber screen cloth immersing glue solution for grinding wheel reinforcement and initial rinsing method |
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2010
- 2010-11-10 CN CN 201010538281 patent/CN102002836A/en active Pending
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| CN1872760A (en) * | 2006-03-31 | 2006-12-06 | 广东生益科技股份有限公司 | Method and set for well immersional wetting reinforcing material and liquid resin |
| CN101071191A (en) * | 2007-06-19 | 2007-11-14 | 上海晓宝增强塑料有限公司 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
| CN101139172A (en) * | 2007-08-22 | 2008-03-12 | 北京玻钢院复合材料有限公司 | Glass fiber screen cloth immersing glue solution for grinding wheel reinforcement and initial rinsing method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313686A (en) * | 2011-07-28 | 2012-01-11 | 哈尔滨工业大学 | Method for measuring internal permeability of prepreg with three-dimensional space analysis |
| CN103131345A (en) * | 2011-12-05 | 2013-06-05 | 何信定 | Gummed cloth and manufacturing method of gummed cloth |
| CN102560928A (en) * | 2012-01-09 | 2012-07-11 | 湖南南方搏云新材料有限责任公司 | Device for continuous carbon felt impregnation |
| CN102560928B (en) * | 2012-01-09 | 2013-07-24 | 湖南南方搏云新材料有限责任公司 | Device for continuous carbon felt impregnation |
| CN104153137A (en) * | 2013-05-14 | 2014-11-19 | 台嘉玻璃纤维有限公司 | Against-water-type flat fiber-opening device and method for glass fiber cloth |
| CN104153137B (en) * | 2013-05-14 | 2016-05-04 | 台嘉玻璃纤维有限公司 | Glass fabric is the flat fiber-opening apparatus of formula and method against the current |
| CN104056752A (en) * | 2014-06-19 | 2014-09-24 | 四川省达州质量技术监督检验测试中心 | Fully-automatic dipping, lifting and drying film coater |
| CN105345945A (en) * | 2015-12-11 | 2016-02-24 | 广东生益科技股份有限公司 | Impregnation method and impregnation device of reinforced material |
| CN105345945B (en) * | 2015-12-11 | 2018-05-29 | 广东生益科技股份有限公司 | The wetting method and infiltration apparatus of reinforcing material |
| CN106881778A (en) * | 2017-03-21 | 2017-06-23 | 常州龙途新材料科技有限公司 | A kind of preparation method of continuous glass-fiber rubber prepreg |
| CN107675387A (en) * | 2017-10-24 | 2018-02-09 | 哈尔滨工业大学 | A kind of device that resinous coat processing is carried out to pbo fiber surface and the method that resin coating is carried out using the device |
| CN110106561A (en) * | 2019-04-23 | 2019-08-09 | 英鸿纳米科技股份有限公司 | A kind of preparation method of antibacterial nanofiber membrane |
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Open date: 20110406 |