CN105938076A - Test method for prepreg resin infiltration degree - Google Patents
Test method for prepreg resin infiltration degree Download PDFInfo
- Publication number
- CN105938076A CN105938076A CN201610392468.9A CN201610392468A CN105938076A CN 105938076 A CN105938076 A CN 105938076A CN 201610392468 A CN201610392468 A CN 201610392468A CN 105938076 A CN105938076 A CN 105938076A
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- China
- Prior art keywords
- prepreg
- fabric
- sample
- test sample
- infiltration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001764 infiltration Methods 0.000 title claims abstract description 29
- 230000008595 infiltration Effects 0.000 title claims abstract description 27
- 239000011347 resin Substances 0.000 title claims abstract description 27
- 229920005989 resin Polymers 0.000 title claims abstract description 27
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 238000012360 testing method Methods 0.000 claims abstract description 34
- 239000000835 fiber Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims description 51
- 238000005070 sampling Methods 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims 1
- 238000005470 impregnation Methods 0.000 abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 3
- 238000002386 leaching Methods 0.000 description 4
- 238000012935 Averaging Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Reinforced Plastic Materials (AREA)
Abstract
The invention provides a test method for prepreg resin infiltration degree. The method is mainly for testing the impregnation degree of a vacuum bag molded oven cured prepreg. The method utilizes the capillary water absorption phenomenon occurred during contact of dry fiber and water, and water rises along the capillary between fiber bundles and infiltrates the fiber till reaching a saturated water absorption capacity. The resin infiltrated interfibre capillary channel is closed, capillary action cannot occur to absorb water, so that the water absorption capacity can be utilized to judge the content of dry fiber in the impregnated prepreg, thus testing the impregnation degree of the prepreg.
Description
Technical field
The present invention relates to field of compound material, specially resin infiltration journey during carbon fiber prepreg preparation
The method of testing of degree.
Background technology
The cured technique of pre-preg vacuum bag, relative to traditional autoclave prepeg process, can break away from into
Limiting and high cost of use of type equipment autoclave size.Make after the cured molding of pre-preg vacuum bag
The inside of part and surface quality depend not only on resin formula and mixed with resin technique, also manufacture with prepreg
In journey, resin is closely related to the infiltration degree of fiber.At present, resin leaching in the prepreg of domestic and international judgment part
The method of profit degree mainly observes the degree of depth of prepreg thickness direction resin infiltration by scanning electron microscope, should
Method sampling requirement is higher, can only with the naked eye judge the impregnation degree of depth of resin in image, lacks the mark of science
Standard, the data discrete drawn is the biggest, it is impossible to as the testing standard of resin infiltration degree accurately.
Summary of the invention
It is an object of the invention to provide measuring in part impregnation prepreg not by doing that resin infiltrates of a kind of simplicity
The mass content of fiber, carrys out the method for testing of calculating section impregnation prepreg infiltration degree, it is possible to realize part
The accurate quantitative analysis of resin infiltration degree in impregnation prepreg.
Present invention provide the technical scheme that
A kind of part impregnation prepreg resin infiltration degree method of testing, including:
1) fabric parent and the sampling of prepreg parent: respectively from the both sides of complete width prepreg and fabric and
Middle sampling, quantity of sampling quantity is 3 groups, i.e. 3 tissue substance parents, 3 groups of prepreg parents；
2) fabric sample and the sampling of prepreg test sample: difference 2 fabrics of cutting on the fabric parent often organized
Sample, the most also 2 prepreg test sample of cutting, altogether 12 samples on the prepreg parent often organized；
3) respectively the bottom of fabric sample and the bottom pressure sensitive adhesive tape of prepreg test sample are pasted, sample double
Pressure sensitive adhesive tape is all posted in face, and pasting height is Hmm；
4) respectively all of fabric sample and prepreg test sample are weighed, and average respectively obtain fabric examination
Quality a of sample0Quality a with prepreg test samplei；
5) fabric sample is hung on the termination of support, then places a stent within balance；
6) hanging fabric sample in support termination is posted in the water of one end infiltration beaker of pressure sensitive adhesive tape, leaching
Entering the degree of depth is H/2mm；
7) after fabric sample fully infiltrates, beaker is removed, then weigh the weight of the fabric sample after infiltration；
8) step 5 is repeated)-step 7), weigh after all of fabric sample is all infiltrated, average and obtain
Quality b of the fabric sample after infiltration0；
9) by step 5) in fabric sample change prepreg test sample into, equally repeat step 5)-step 7),
Weigh after all of prepreg test sample is all infiltrated, the matter of the prepreg test sample after being infiltrated of averaging
Amount bi；
10) fabric moisture rate w is calculated0=b0/a0The fiber quality f=a total with in prepregi*wf, wfFor in advance
Fiber quality mark in leaching material, is calculated by the mass ratio of resin and fiber in prepreg manufacture process；
11) the final resin impregnated degree that calculates is
Step 7) in, when fabric or prepreg infiltrate in water when, note the reading of balance, to sky
Flat numerical value is not beated and is started to record weight, until the data difference of twice record is less than in 30 seconds
0.0002g, is fully infiltration.
Described beaker is fixed on iron stand.
The medicine have the advantages that the present invention makes full use of the capillary suction effect between dry fibers tow, and
Take the sample of suitable size and shape, control the saturated absorbent time of fiber, it is achieved discrete little, operation
Easy, the test to prepreg resin infiltration degree that can be online.
Accompanying drawing explanation
Fig. 1 is that the test sample of prepreg infiltration degree of the present invention prepares schematic diagram.
Fig. 2 is the test device schematic diagram of prepreg infiltration degree of the present invention.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of part impregnation prepreg resin infiltration degree method of testing, including:
1, fabric parent and the sampling of prepreg parent: respectively from the both sides of complete width prepreg and fabric (OS,
DS) sampling with middle (M), quantity of sampling quantity is 3 groups, i.e. 3 tissue substance parents, 3 groups of prepreg parents,
Body size is all 100.0mm × 100.0mm,
2, fabric sample and the sampling of prepreg test sample: 2 fabric examinations of cutting respectively on the fabric parent often organized
Sample, the most also 2 prepreg test sample of cutting on the prepreg parent often organized, i.e. 6 fabric sample, 6
Prepreg test sample, altogether 12 samples, the size of test sample is 10.0mm × 30.0mm；
3, pasting bottom all test samples with pressure sensitive adhesive tape, the two-sided pressure sensitive adhesive tape that all must post ensures test
Not being impregnated with completely (see Fig. 1) when the bottom of sample contacts with water, pasting height is 10.0mm；
4, respectively all of fabric sample and prepreg test sample are weighed, and average respectively and obtain fabric sample
Quality a0Quality a with prepreg test samplei；
5, fabric sample is hung on the termination of support, then places a stent within balance, and reset (see Fig. 2),
The termination of support can use iron wire, and sample can hang on iron wire termination；
6, the hanging fabric sample in support termination is posted in the water of one end infiltration beaker of pressure sensitive adhesive tape, immerse
The degree of depth is 5mm；Beaker is fixed on iron stand.
7, after fabric sample fully infiltrates, beaker is removed, then weigh the weight of the fabric sample after infiltration；
8, repeat step 5-step 7, weigh after all of fabric sample is all infiltrated, average and infiltrated
After quality b of fabric sample0；
9, change the fabric sample in step 5 into prepreg test sample, repeat step 5-step 7 equally, will
All of prepreg test sample is weighed after all infiltrating, quality b of the prepreg test sample after being infiltrated of averagingi；
10, fabric moisture rate w is calculated0=b0/a0The fiber quality f=a total with in prepregi*wf, wfFor prepreg
Middle fiber quality mark, is calculated by the mass ratio of resin and fiber in prepreg manufacture process；
11, the final resin impregnated degree that calculates isY is this patent needs the prepreg drawn to contain
The resin infiltration degree to fiber during leaching.
In step 7, when fabric or prepreg infiltrate in water when, note the reading of balance,
Numerical value to balance is not beated and is started to record weight, until the data difference of twice record is less than in 30 seconds
0.0002g, is fully infiltration.
Claims (3)
1. a prepreg resin infiltration degree method of testing, it is characterised in that including:
1) fabric parent and the sampling of prepreg parent: respectively from complete width prepreg and fabric
Both sides and middle sampling, quantity of sampling quantity is 3 groups, i.e. 3 tissue substance parents, 3 groups of preimpregnation
Material parent；
2) fabric sample and the sampling of prepreg test sample: cutting respectively on the fabric parent often organized
2 fabric sample, the most also 2 prepreg test sample of cutting on the prepreg parent often organized,
12 samples altogether；
3) respectively the bottom of fabric sample and the bottom pressure sensitive adhesive tape of prepreg test sample are pasted,
The two-sided of sample all posts pressure sensitive adhesive tape, and pasting height is Hmm；
4) respectively all of fabric sample and prepreg test sample are weighed, and be averaged worth respectively
Quality a to fabric sample0Quality a with prepreg test samplei；
5) fabric sample is hung on the termination of support, then places a stent within balance；
6) hanging fabric sample in support termination is posted one end infiltration beaker of pressure sensitive adhesive tape
Water in, immersion depth is H/2mm；
7) after fabric sample fully infiltrates, beaker is removed, then weigh the examination of the fabric after infiltration
The weight of sample；
8) step 5 is repeated)-step 7), weigh after all of fabric sample is all infiltrated, take
Meansigma methods infiltrated after quality b of fabric sample0；
9) by step 5) in fabric sample change prepreg test sample into, equally repeat step
5)-step 7), weigh after all of prepreg test sample is all infiltrated, average and obtain
Quality b of the prepreg test sample after infiltrationi；
10) fabric moisture rate w is calculated0=b0/a0The fiber quality total with in prepreg
F=ai*wf, wfFor fiber quality mark in prepreg, by prepreg manufacture process
The mass ratio of resin and fiber calculates；
11) the final resin impregnated degree that calculates is
A kind of prepreg resin infiltration degree method of testing the most according to claim 1, it is special
Levy and be, step 7) in, when fabric or prepreg infiltrate in water when, note sky
Flat reading, the numerical value to balance is not beated and is started to record weight, until twice note in 30 seconds
The data difference of record, less than 0.0002g, is fully infiltration.
A kind of prepreg resin infiltration degree method of testing the most according to claim 1, it is special
Levying and be, described beaker is fixed on iron stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392468.9A CN105938076B (en) | 2016-06-02 | 2016-06-02 | A kind of prepreg resin infiltration degree test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392468.9A CN105938076B (en) | 2016-06-02 | 2016-06-02 | A kind of prepreg resin infiltration degree test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105938076A true CN105938076A (en) | 2016-09-14 |
| CN105938076B CN105938076B (en) | 2018-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610392468.9A Active CN105938076B (en) | 2016-06-02 | 2016-06-02 | A kind of prepreg resin infiltration degree test method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024407A (en) * | 2017-05-04 | 2017-08-08 | 绍兴文理学院元培学院 | A kind of bicomponent fabric component ratio method of testing |
| CN107290252A (en) * | 2017-06-30 | 2017-10-24 | 浙江石金玄武岩纤维股份有限公司 | A kind of method for testing fiber wetness energy |
| CN110672470A (en) * | 2018-07-03 | 2020-01-10 | 宁德时代新能源科技股份有限公司 | Pole piece infiltration testing method and device of secondary battery |
| CN111537674A (en) * | 2020-05-14 | 2020-08-14 | 江苏恒神股份有限公司 | Method for testing impregnation degree of prepreg |
| CN113418820A (en) * | 2021-07-22 | 2021-09-21 | 中航复合材料有限责任公司 | Method and device for detecting filament breakage rate of continuous fiber prepreg |
| CN113447391A (en) * | 2021-08-31 | 2021-09-28 | 常州市宏发纵横新材料科技股份有限公司 | Prepreg resin wettability testing method |
| US11440285B2 (en) * | 2020-05-04 | 2022-09-13 | Textron Innovations Inc. | Method of quantifying surface resin |
| CN115266457A (en) * | 2022-07-27 | 2022-11-01 | 中复神鹰(上海)科技有限公司 | Method for testing impregnation degree of carbon fiber prepreg |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024407A (en) * | 2017-05-04 | 2017-08-08 | 绍兴文理学院元培学院 | A kind of bicomponent fabric component ratio method of testing |
| CN107290252A (en) * | 2017-06-30 | 2017-10-24 | 浙江石金玄武岩纤维股份有限公司 | A kind of method for testing fiber wetness energy |
| CN107290252B (en) * | 2017-06-30 | 2019-10-11 | 浙江石金玄武岩纤维股份有限公司 | A method of test fiber wetness can |
| CN110672470A (en) * | 2018-07-03 | 2020-01-10 | 宁德时代新能源科技股份有限公司 | Pole piece infiltration testing method and device of secondary battery |
| CN110672470B (en) * | 2018-07-03 | 2021-11-09 | 宁德时代新能源科技股份有限公司 | Pole piece infiltration testing method and device of secondary battery |
| US11440285B2 (en) * | 2020-05-04 | 2022-09-13 | Textron Innovations Inc. | Method of quantifying surface resin |
| CN111537674A (en) * | 2020-05-14 | 2020-08-14 | 江苏恒神股份有限公司 | Method for testing impregnation degree of prepreg |
| CN113418820A (en) * | 2021-07-22 | 2021-09-21 | 中航复合材料有限责任公司 | Method and device for detecting filament breakage rate of continuous fiber prepreg |
| CN113447391A (en) * | 2021-08-31 | 2021-09-28 | 常州市宏发纵横新材料科技股份有限公司 | Prepreg resin wettability testing method |
| CN115266457A (en) * | 2022-07-27 | 2022-11-01 | 中复神鹰(上海)科技有限公司 | Method for testing impregnation degree of carbon fiber prepreg |
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