CN109467726A - Using glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method - Google Patents
Using glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method Download PDFInfo
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- CN109467726A CN109467726A CN201811202450.3A CN201811202450A CN109467726A CN 109467726 A CN109467726 A CN 109467726A CN 201811202450 A CN201811202450 A CN 201811202450A CN 109467726 A CN109467726 A CN 109467726A
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- glass microballoon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2363/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
Abstract
Using glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method, it is related to fiber/resin based composites.Method one: manual pasting forming process is the following steps are included: cut fiber cloth by design requirement, by resin and curing agent blending, stirring, deaeration processing；By one layer of fiber cloth paving of cutting in die surface, make thermoplastic resin-impregnated fibers cloth, removes the field trashes such as the bubble in fiber cloth；Glass microballoon is dispensed or is sprayed the fiber cloth surface after dipping；After the completion of glass microballoon is dispensed or sprayed, then it is coated with next layer of fiber cloth, after impregnating resin, then dispenses or spray glass microballoon, until whole laying layings finish.Method two: prepreg/autoclave forming process is the following steps are included: cut prepreg by design requirement；By design laying laying prepreg, glass microballoon is uniformly sprayed between laying, after the completion of sprinkling/laying, through autoclave molding.
Description
Technical field
The present invention relates to fiber/resin based composites, more particularly, to multiple using glass microballoon reinforcing fiber/resin base
The Enhancement Method of condensation material laminate interlaminar strength.
Background technique
Fiber/resin based composites are that the industrial circles such as aerospace, building, ship, Oil & Gas Storage are widely used
Structural material has many advantages, such as high-strength light, corrosion-resistant, antifatigue.But fiber/resin base composite material laminated plate interlaminar strength
It is low, cause its bending resistance, anti-lateral shear ability poor, improving fiber/resin base composite material laminated plate interlaminar strength is always work
One of the target that journey circle is pursued.Mainly there are resin toughening, reinforcement suture, three-dimensional to knit using more interlaminar improvement method at present
The methods of object, these method general technology processes are more complicated, higher cost.
Chinese patent CN1718632A discloses a kind of hollow microbead reinforced epoxy resin composite material and preparation method thereof.It presses
Parts by weight meter, the component of the composite material include: 100 parts of epoxy resin, 8~100 parts of curing agent, 10~35 parts of diluent,
6~13 parts and 60~130 parts of reinforcing material of coupling agent, reinforcing material is cenosphere.The preparation step of the composite material includes
Solidify after screening and pretreatment, the pregel of composite material and the microwave of composite material to cenosphere.
High-performance glass microballon is a kind of powdered ultralight inorganic non-metallic material of hollow ball, by glass microballoon and epoxy
Resin-bonded can form foam type composite material, and so as to improve the mechanical property of resin material, the present invention utilizes this principle,
It is proposed reinforcing fiber/polymer matrix composites laminate interlaminar strength method.
Summary of the invention
The purpose of the present invention is to provide use glass microballoon to utilize Resin Flow and glass microballoon table for raw material
Face capillary principle, method is simple and easy, and convenient to carry out uses glass microballoon reinforcing fiber/polymer matrix composites laminate layer
Between intensity Enhancement Method.
The method of the present invention one: manual pasting forming process the following steps are included:
1) fiber cloth is cut by design requirement, resin and curing agent is blended, stirring, deaeration processing；
In step 1), epoxy resin is can be used in the resin, and Epicote 1006A toughening can be used in the epoxy resin
The mass ratio of type epoxy resin, resin and curing agent can be 10 ︰ 6, and the deaeration processing can be used vacuum environment case and carry out deaeration
Processing.
2) one layer of fiber cloth paving for cutting step 1) makes thermoplastic resin-impregnated fibers cloth in die surface, removes fiber cloth
In the field trashes such as bubble；
3) glass microballoon is dispensed or is sprayed the fiber cloth surface after dipping；
It is described that glass microballoon is dispensed or sprayed the fiber cloth surface after dipping in step 3), it can be by glass microballoon
By surface density 20g/cm2The fiber cloth surface after dipping is uniformly dispensed or sprays using spraying or spraying equipment；The glass
Hollow glass spheres can be used in microballon, and the glass microballoon (3M brand) that the trade mark is S22 can be used in the hollow glass spheres, described
75 μm of the maximum particle diameter of hollow glass spheres；The laminate reinforcement glass fabric, carbon cloth, matrix resin are
Epicote1006A toughened epoxy resin；To guarantee that glass microballoon is uniformly distributed in laminated plate face, the spray of profession can be used
It spreads or spraying equipment.
4) after the completion of glass microballoon is dispensed or sprayed, then it is coated with next layer of fiber cloth, after impregnating resin, then dispenses or spray
Glass microballoon, until whole laying layings finish.
Entire laying/spreading or spraying process need to be completed in resin mobile window, therefore answer that selecting liquidity is good, window
Phase longer resin, while laying/spreading or spraying environment temperature cannot be excessively high, avoid the premature gel of resin.In addition, glass
Microballon belongs to molecule, is easy to diffuse in air, and operator should wear the protector such as mask, eyeshade.
The method of the present invention two: prepreg/autoclave forming process the following steps are included:
1) prepreg is cut by design requirement；
2) by design laying laying prepreg, glass microballoon is uniformly sprayed between laying, after the completion of sprinkling/laying,
Through autoclave molding.
In step 2), the specific method by design laying laying prepreg can are as follows: glass microballoon is pressed surface density
20g/cm2It is uniformly dispensed or is sprayed in prepreg surface using the spraying or spraying equipment of profession；The glass microballoon can be used
The glass microballoon (3M brand) that the trade mark is S22 can be used in hollow glass spheres, the hollow glass spheres, and the hollow glass is small
75 μm of the maximum particle diameter of ball.
The present invention uses glass microballoon for raw material, utilizes Resin Flow and glass microballoon surface capillary principle, side
Method is simple and easy, convenient to carry out.The laminate of S22 glass microballoon is added to, in solidification process, due to Resin Flow and glass
Bead surface capillarity forms polymeric foam thin layer between laminate laying.Method proposed by the invention is suitable for hand
Paste moulding process and autoclave forming process.
Detailed description of the invention
Fig. 1 is short beam three point bending test experimental provision schematic diagram.
Fig. 2 is short beam three point bending test test specimen schematic diagram.
Fig. 3 is long beam three point bending test experimental provision schematic diagram.
Fig. 4 is long beam three point bending test test specimen schematic diagram.
Specific embodiment
Following embodiment will the present invention is further illustrated in conjunction with attached drawing.
The method that the embodiment of the present invention is proposed is suitable for manual pasting forming process and autoclave forming process, described to use glass
Specific step is as follows for glass microballon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method:
To manual pasting forming process, laminate raw material are glass fabric or carbon cloth and matrix resin, matrix tree
Rouge is in the majority with epoxy resin.Glass microballoon uses the trade mark for the glass microballoon (3M brand) of S22, and this glass microballoon is a kind of sky
Heart glass pellet, 75 μm of maximum particle diameter；When forming composite, by design requirement cut fiber cloth, by the fiber being pre-designed/
Substrate quality is than weighing resin, curing agent (needing addition toughener, colorant etc. when necessary)；By resin, curing agent (+toughening
Agent etc.) it blends to scale, it is sufficiently stirred, and carry out deaeration processing using vacuum environment case.One layer of fiber cloth paving is existed
Die surface, and resin is made to be sufficiently impregnated fiber cloth, pay attention to removing the bubble etc. in fiber cloth and be mingled with, the works such as felt rolling can be used
Has assistant soakage；After fiber cloth thorough impregnation, S22 glass microballoon is pressed into surface density 20g/cm2It uniformly dispenses or sprays in dipping
Manual spreading can be used if necessary to which molding laminated plate suqare is smaller in fiber cloth surface afterwards, if area is larger, to guarantee
Glass microballoon is uniformly distributed in laminated plate face, and spraying or the spraying equipment of profession can be used；After the completion of glass microballoon sprays, then
It is coated with next layer of fiber cloth, impregnating resin, then sprays glass microballoon ..., is repeated the above process, until all fibres cloth is coated with
It completes.After the completion of being coated with, the lamination order of glass fabric/resin and glass microballoon is as illustrated in fig. 1 and 2.Entire laying/spraying
Process need to be completed in resin mobile window, therefore answer that selecting liquidity is good, the longer resin of window phase, while laying/spraying
Environment temperature cannot be excessively high, avoids the premature gel of resin.In addition, glass microballoon belongs to molecule, it is easy to diffuse in air
In, operator should wear the protector such as mask, eyeshade.
According to prepreg/autoclave forming process, method implementation process is similar with hand paste process, only without impregnating tree
Rouge is uniformly sprayed glass microballoon between laying, by design laying laying prepreg through autoclave molding.It is added to S22 glass
The laminate of glass microballon, in solidification process, due to Resin Flow and glass microballoon surface capillary, between laminate laying
Form polymeric foam thin layer.
Method validation:
By the method for the invention, processing verifying sample, reinforcement uses fiberglass scrim, and specification is surface density
800g/m2；Matrix uses IPKOT 1006A epoxy resin (10 ︰ 6 of resin and curing agent ratio)；Reinforcement mass fraction is
55%；Using hand paste process machining composite material plate.
Interlaminar shear strength is measured by short beam bend test, transverse bending strength is measured by long amount bend test.It is short
Bending experiment of beam ASTM D2344 [2] standard is carried out, and (experimental standard has for long beam deflection test basis ASTM D790 [3] development
Corresponding Chinese national standard is corresponding to it).By experimental standard machining experiment, experimental facilities uses Instron5569 universal testing machine,
Experimental situation is interior, dry state, temperature are 24 DEG C, by experimental standard requirement measurement experiment part size.Shear strength experiment uses
Short beam three-point bending test (Fig. 1 and 2), specimen thickness d, the long L=6d of testpieces；Width b=2d, test specimen use two o'clock branch
Support applies load, supporting point interval Span=4d in two supporting point midpoints；Bending strength experiment uses long beam three-point bending
It tests (Fig. 3 and 4), two supporting point span Span=16d, width is about 12.7mm, a length of fulcrum span+20.
Shear strength and bending strength are calculated by following two formula:
Wherein, σSFor interlaminar shear strength；σFFor transverse bending strength；PmSFor peak load in short beam bend test；PmF
For the peak load in the 3 points of curved experiments of long beam；D is specimen thickness；B is specimen width；LsBetween the fixed support of long beam deflection
Span.
The sample for being not added with and adding glass microballoon is tested respectively, takes the result average value of 5 effective test specimens such as
Shown in table 1.
Table 1
| Interlaminar shear strength (MPa) | Transverse bending strength (MPa) | |
| Add glass microballoon | 7.9 | 74.5 |
| It is not added with glass microballoon | 6.3 | 59.4 |
The experimental results showed that the bending strength and interlaminar shear strength of laminate are equal after by present invention addition glass microballoon
It is significantly improved, it was demonstrated that intensity enhancing method is effective between laminate layer proposed by the invention.
Claims (10)
1. using glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method, it is characterised in that
Manual pasting forming process the following steps are included:
1) fiber cloth is cut by design requirement, resin and curing agent is blended, stirring, deaeration processing；
2) one layer of fiber cloth paving for cutting step 1) makes thermoplastic resin-impregnated fibers cloth in die surface, removes in fiber cloth
The field trashes such as bubble；
3) glass microballoon is dispensed or is sprayed the fiber cloth surface after dipping；
4) after the completion of glass microballoon is dispensed or sprayed, then it is coated with next layer of fiber cloth, after impregnating resin, then dispenses or spray glass
Microballon, until whole laying layings finish.
2. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as described in claim 1
Method, it is characterised in that in step 1), the resin uses epoxy resin, and Epicote can be used in the epoxy resin
1006A toughened epoxy resin.
3. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as described in claim 1
Method, it is characterised in that in step 1), the mass ratio of the resin and curing agent is 10 ︰ 6.
4. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as described in claim 1
Method, it is characterised in that in step 1), the deaeration processing carries out deaeration processing using vacuum environment case.
5. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as described in claim 1
Method, it is characterised in that it is described that glass microballoon is dispensed or sprayed the fiber cloth surface after dipping in step 3), it is by glass
Glass microballon presses surface density 20g/cm2The fiber cloth surface after dipping is uniformly dispensed or sprays using spraying or spraying equipment.
6. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as described in claim 1
Method, it is characterised in that the glass microballoon uses hollow glass spheres, and it is S22's that the trade mark, which can be used, in the hollow glass spheres
Glass microballoon, the maximum particle diameter of the hollow glass spheres can be 75 μm；Laminate reinforcement glass fabric, carbon cloth,
Epicote 1006A toughened epoxy resin can be used in matrix resin.
7. using glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength Enhancement Method, it is characterised in that
Prepreg/autoclave forming process the following steps are included:
1) prepreg is cut by design requirement；
2) by design laying laying prepreg, glass microballoon is uniformly sprayed between laying, after the completion of sprinkling/laying, through heat
Press jug forming.
8. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as claimed in claim 7
Method, it is characterised in that in step 2), described press designs laying laying prepreg method particularly includes: glass microballoon is pressed face
Density 20g/cm2It is uniformly dispensed or is sprayed in prepreg surface using the spraying or spraying equipment of profession.
9. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as claimed in claim 7
Method, it is characterised in that in step 2), the glass microballoon uses hollow glass spheres, and the hollow glass spheres can be used
The trade mark is the glass microballoon of S22.
10. using the enhancing of glass microballoon reinforcing fiber/polymer matrix composites laminate interlaminar strength as claimed in claim 9
Method, it is characterised in that in step 2), the maximum particle diameter of the hollow glass spheres is 75 μm.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110077051A (en) * | 2019-04-18 | 2019-08-02 | 河南泛锐复合材料研究院有限公司 | A kind of preparation method for bulletproof armour plate interlayer composite material |
| CN110626020A (en) * | 2019-08-06 | 2019-12-31 | 衢州艾科科技有限公司 | Polyurethane reinforced composite material and preparation method thereof |
| CN112318953A (en) * | 2020-11-03 | 2021-02-05 | 广东航科新材料有限公司 | Large-width high-surface-appearance-quality plate structure and preparation method thereof |
| CN113059869A (en) * | 2021-03-25 | 2021-07-02 | 沈阳航空航天大学 | Glass fiber laminated plate with pre-buried carbon powder reinforced medium and preparation method thereof |
| CN113321913A (en) * | 2021-06-15 | 2021-08-31 | 威驰腾(福建)汽车有限公司 | Carbon fiber cotton composite material and preparation method thereof |
| CN113462125A (en) * | 2021-07-14 | 2021-10-01 | 巩义市泛锐熠辉复合材料有限公司 | Resin foam preform, member made of resin foam preform, and method for producing the same |
| CN113943471A (en) * | 2021-11-04 | 2022-01-18 | 成都鲁晨新材料科技有限公司 | Low-density prepreg, preparation method and application |
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| CN112318953A (en) * | 2020-11-03 | 2021-02-05 | 广东航科新材料有限公司 | Large-width high-surface-appearance-quality plate structure and preparation method thereof |
| CN113059869A (en) * | 2021-03-25 | 2021-07-02 | 沈阳航空航天大学 | Glass fiber laminated plate with pre-buried carbon powder reinforced medium and preparation method thereof |
| CN113059869B (en) * | 2021-03-25 | 2022-11-04 | 沈阳航空航天大学 | Glass fiber laminated plate with pre-buried carbon powder reinforced medium and preparation method thereof |
| CN113321913A (en) * | 2021-06-15 | 2021-08-31 | 威驰腾(福建)汽车有限公司 | Carbon fiber cotton composite material and preparation method thereof |
| CN113321913B (en) * | 2021-06-15 | 2022-11-08 | 威驰腾(福建)汽车有限公司 | Carbon fiber cotton composite material and preparation method thereof |
| CN113462125A (en) * | 2021-07-14 | 2021-10-01 | 巩义市泛锐熠辉复合材料有限公司 | Resin foam preform, member made of resin foam preform, and method for producing the same |
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