CN109722940A - A kind of honeycomb impregnating resin, honeycomb and cellular preparation method - Google Patents
A kind of honeycomb impregnating resin, honeycomb and cellular preparation method Download PDFInfo
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- CN109722940A CN109722940A CN201811551371.3A CN201811551371A CN109722940A CN 109722940 A CN109722940 A CN 109722940A CN 201811551371 A CN201811551371 A CN 201811551371A CN 109722940 A CN109722940 A CN 109722940A
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- honeycomb
- resin
- impregnating resin
- phenolic resin
- impregnating
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Abstract
The embodiment of the present application shows a kind of honeycomb impregnating resin, honeycomb and cellular preparation method.It is modified resin that the application of this hair, which implements the technical solution exemplified for the epoxy resin with self-lubricating group, modified resin plays the effect that toughening is carried out to phenolic resin, specifically, under curing agent effect ring-opening reaction occurs for epoxy resin and phenolic resin, epoxy branch is connected in certain hydroxy positions of phenolic resin, increase the flexibility of phenolic resin, and adamantane group has self-lubrication, drop can increase the motility of strand to a certain extent, so as to carry out toughening to phenolic resin, low honeycomb solidify after brittleness, reduce honeycomb starved phenomenon, reduce production cost.
Description
Technical field
The present invention relates to technical field of composite preparation, more particularly to a kind of honeycomb impregnating resin, honeycomb and bee
The preparation method of nest.
Background technique
The white honeycomb that non-impregnation is obtained after the stretched sizing of honeycomb lamination, according to the demand impregnated phenolic resin of product,
It is dried after purification, impregnation number is adjusted according to the target pre-set density of product, repeated the above process pre- up to reaching target
Density is set, suitable program is selected to be solidified.
At present impregnation be mostly used phenolic resin curing after honeycomb surface, but use phenolic resin curing after honeycomb surface compared with
Crisp, if tool speed is too fast during cutting for subsequent there is a possibility that falling off in honeycomb surface resin, influence to prepare
Honeycomb quality.
Summary of the invention
In view of the deficiencies of the prior art, the embodiment of the invention provides a kind of honeycomb impregnating resin, honeycomb and cellular
Preparation method, to solve technical problem of the existing technology.
The embodiment of the present application first aspect shows a kind of honeycomb impregnating resin, and the impregnating resin includes: phenolic resin
90~95 mass point, 5~10% mass of epoxy resin point, curing agent content are 1~3 mass point, and, ethyl alcohol.
Selectable, the epoxy resin is the epoxy resin with self-lubricating group.
Selectable, the self-lubricating group is in adamantane group or class graphite platelet structure group or bn group
One kind.
Selectable, the curing agent is diaminodiphenylsulfone, in 4.4- diaminodiphenyl-methane, lewis acid
One or more mixing.
It is selectable, one or more mixing in the lewis acid organic acid anhydride, boron trifluoride complex.
The embodiment of the present application second aspect shows a kind of honeycomb, and the honeycomb includes honeycomb core material, and, impregnating resin；
The impregnating resin is using the impregnating resin shown in the embodiment of the present application.
Selectable, the honeycomb core material is one of aramid fiber paper, plant fiber paper, polyester fiber paper.
The embodiment third aspect shows a kind of cellular preparation method when the application, which comprises
The impregnating resin shown in the embodiment of the present application is added in impregnation pond；Honeycomb core material is immersed in the impregnating resin
In；
It takes out from the honeycomb core material after dipping, solidifies after purification, obtain finished product honeycomb.
Selectable, program curing is using temperature programming, the process of described program heating are as follows: 75 DEG C × 0.5h+120 DEG C
×0.5h+175℃×1h
To sum up, the progress point of this method is as follows:
The embodiment of the present application shows a kind of honeycomb impregnating resin, honeycomb and cellular preparation method, the impregnating resin
It include: 90~95 mass of phenolic resin point, 5~10% mass of epoxy resin point, curing agent content is 1~3 mass point, and,
Ethyl alcohol.Selection of technical scheme adamantane type epoxy resin shown in the embodiment of the present application as modified resin, to phenolic resin into
Under curing agent effect ring-opening reaction occurs for row toughening, epoxy resin and phenolic resin, in certain hydroxy positions of phenolic resin
On connect epoxy branch, increase the flexibility of phenolic resin, so as to phenolic resin carry out toughening, reduce honeycomb solidification after
Brittleness, reduce honeycomb starved phenomenon, improve cellular yield rate, guarantee honeycomb quality, reduce production cost.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of flow chart of cellular preparation method shown in the embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment it is detailed
Thin description and attached drawing cannot be used to limit the scope of the invention for illustratively illustrating the principle of the present invention, i.e., of the invention
It is not limited to described embodiment, covers part, component and connection type under the premise of without departing from the spirit of the present invention
Any modification, replacement and improvement.
The embodiment of the present application first aspect shows a kind of honeycomb impregnating resin, and the impregnating resin includes: phenolic resin
90~95 mass point, 5~10% mass of epoxy resin point, curing agent content are 1~3 mass point, and, ethyl alcohol.
It should be noted that epoxy resin, epoxy is added in the technical solution shown in the embodiment of the present application in phenolic resin
Under curing agent effect ring-opening reaction occurs for resin and phenolic resin, connects epoxy branch in certain hydroxy positions of phenolic resin
Chain, increases the flexibility of phenolic resin, effectively avoids honeycomb surface if tool speed is too fast during cutting for subsequent
The appearance for the problem of resin has a possibility that falling off, and influences the quality for the honeycomb prepared.
Selectable, the epoxy resin shown in the embodiment of the present application is the epoxy resin with self-lubricating group.
The self-lubricating group is adamantane group or one of class graphite platelet structure group or bn group.
The structural formula of the epoxy resin:
Wherein X is the above-mentioned group with self-lubrication, includes adamantane group, class graphite platelet structure group, nitrogen
Change boron group.
Wherein, the cyclic annular four sides that adamantane group due to basic carbon skeleton there is the hexamethylene of chair form conformation feature to constitute
Body structure, structural symmetry and lubricity with height, can increase phenolic resin strand to a certain extent, with
And the motility of epoxy molecule chain, so as to phenolic resin carry out toughening, low honeycomb solidify after brittleness, subtract
Few honeycomb starved phenomenon, reduces production cost.
Wherein, class graphite platelet structure group, have flat crystal structure, greasy property is good, can be to a certain degree
Upper increase phenolic resin strand, and, the motility of epoxy molecule chain, so as to increase to phenolic resin
It is tough, low honeycomb solidify after brittleness, reduce honeycomb starved phenomenon, reduce production cost.
Wherein, the binding force of bn group interlayer is smaller than the binding force in layer, but the corresponding B of interlayer, N atom are said
Electrostatic force it is bigger than graphite, boron nitride-base has certain lubricity at normal temperature, can increase phenolic aldehyde tree to a certain extent
Rouge strand, and, the motility of epoxy molecule chain, so as to carry out toughening, low honeycomb solidification to phenolic resin
Brittleness afterwards reduces honeycomb starved phenomenon, reduces production cost.
Optionally, the curing agent is diaminodiphenylsulfone, 4.4- diaminodiphenyl-methane, one in lewis acid
Kind or a variety of mixing.
Wherein, described 4,4 '-two oxygroup diphenyl sulfones (DDS) are a kind of epoxy resin cures with excellent heat resistance
Agent, the sulphur atom in molecular structure has been in highest oxidation state, while sulfuryl tends to attract the electronics on phenyl ring again
And phenyl ring is set to lack electronics, therefore make entire diphenyl sulfone all in resistance to oxidation state.In addition the chemical bond strength of diphenyl sulfone
High and entire diphenyl sulfone is in height resonance state, when absorbing a large amount of thermal energy and radiation energy, can pass through this resonance
System dissipates, and is broken and is crosslinked without chain, therefore the technical solution shown in the embodiment of the present application uses 4,4 '-two oxygroup hexichol
Base sulfone (DDS) curing agent the most.
Selectable, the technical solution shown in the embodiment of the present application uses 4,4 '-two oxygroup diphenyl sulfones and lewis acid
Mixing is used as curing agent, one or more mixing in the lewis acid organic acid anhydride, boron trifluoride complex.
The expression activitiy of 4,4 '-two oxygroup diphenyl sulfones is low, slow with epoxy reaction, the technology shown in the embodiment of the present application
Scheme adopts lewis promoters to improve reaction rate；
The embodiment of the present application second aspect shows a kind of honeycomb, and the honeycomb includes honeycomb core material, and, impregnating resin；
The impregnating resin is using the impregnating resin as shown in right the embodiment of the present application.
Selectable, the honeycomb core material is one of aramid fiber paper, plant fiber paper, polyester fiber paper.
Referring to Fig. 1, a kind of cellular preparation method shown in the embodiment of the present application, which comprises
The impregnating resin shown in the embodiment of the present application is added in S101 in impregnation pond；Honeycomb core material is immersed in the dipping
In resin；
S102 takes out from the honeycomb core material after dipping, solidifies after purification, obtains finished product honeycomb.
Selectable, program curing is using temperature programming, the process of described program heating are as follows: 75 DEG C × 0.5h+120 DEG C
×0.5h+175℃×1h。
Three step temperature programming of selection of technical scheme shown in the embodiment of the present application, advantage is can be in first step mistake
Effectively remove solvent in journey, less production safety hidden danger makes the resin precuring of dipping at second step, in third step
Sufficiently solidification in the process, can promote its curing degree, increase cellular performance after solidification.
Embodiment 1:
To prepare cell side length as 1.83mm, density is design for the standard cell aramid paper honeycomb core material of 48kg/m3
And preparation step is as follows:
Dipping glue is prepared in the steeping vat of cement dipping machine, glue is molten with ethyl alcohol based on alcohol-soluble phenolic resin
Agent is prepared, phenolic resin, epoxy resin, curing agent, and, ethyl alcohol；Wherein phenolic resin content is 93% (quality/matter
Amount), adamantane type epoxy resin content is 4% (mass/mass), and DDM curing agent content is 3% (mass/mass), with preset
Density is foundation, and suitable ethyl alcohol is added, and can carry out shaping rear white cellular impregnation after reaching the concentration of setting.Impregnation speed
For 1mm/s, impregnation pass is 2, and honeycomb is put into baking oven at 105 DEG C after the completion of first time impregnation and heats 30min, the 2nd time
After the completion of impregnation, honeycomb is put into baking oven, program curing is 75 DEG C × 0.5h+120 DEG C × 0.5h+175 DEG C × 1h.
Honeycomb is subjected to pure core material main mechanical properties test under room temperature, performance does not decline, and unstable type
Compressive strength is risen, and meets requirement, specific experiment data are referring to table 1.
Embodiment 2；
To prepare cell side length as 1.83mm, density 29kg/m3Standard cell aramid paper honeycomb core material for, design
And preparation step is as follows:
Dipping glue is prepared in the steeping vat of cement dipping machine, glue is molten with ethyl alcohol based on alcohol-soluble phenolic resin
Agent is prepared, phenolic resin, epoxy resin, curing agent and ethyl alcohol；Wherein phenolic resin content is 95% (quality/matter
Amount), boron nitride type epoxy resin content is 3% (mass/mass), and DDS curing agent content is 2% (mass/mass), with preset
Density is foundation, and suitable ethyl alcohol is added, and can carry out shaping rear white cellular impregnation after reaching the concentration of setting.Impregnation speed
For 1mm/s, impregnation pass is 2, and honeycomb is put into baking oven at 105 DEG C after the completion of first time impregnation and heats 30min, the 2nd time
After the completion of impregnation, honeycomb is put into baking oven, program curing is+120 DEG C × 0.5h+175 DEG C × 1h of 75 DEG C × 0.5h.
Honeycomb is subjected to pure core material main mechanical properties test under room temperature, performance does not decline, and unstable type
Compressive strength is risen, and meets requirement, specific experiment data are referring to table 1.
Embodiment 3:
To prepare cell side length as 2.75mm, density 32kg/m3Standard cell aramid paper honeycomb core material for, design
And preparation step is as follows:
Dipping glue is prepared in the steeping vat of cement dipping machine, glue is molten with ethyl alcohol based on alcohol-soluble phenolic resin
Agent is prepared, phenolic resin, epoxy resin, curing agent and ethyl alcohol；Wherein phenolic resin content is 93% (quality/matter
Amount), adamantane type epoxy resin content is 4% (mass/mass), and acetic anhydride curing agent content is 3% (mass/mass), with
Pre-set density is foundation, and suitable ethyl alcohol is added, and can carry out shaping rear white cellular impregnation after reaching the concentration of setting.Impregnation
Speed is 1mm/s, and impregnation pass is 2, and honeycomb is put into baking oven after the completion of first time impregnation and heats 30min at 105 DEG C, the
After the completion of 2 times impregnations, honeycomb is put into baking oven, program curing is 75 DEG C × 0.5h+120 DEG C × 0.5h+175 DEG C × 1h, specifically
Experimental data is referring to table 1.
1 honeycomb core material performance comparison table of table
As it can be seen that honeycomb prepared by the technical solution shown in the embodiment of the present application carries out pure core material main mechanical under room temperature
Performance test, performance do not decline, and unstable type compressive strength is risen, and requirement is met.
The embodiment of the present application shows a kind of honeycomb impregnating resin, honeycomb and cellular preparation method, the impregnating resin
It include: 90~95 mass of phenolic resin point, 5~10% mass of epoxy resin point, curing agent content is 1~3 mass point, and,
Ethyl alcohol.It is modified resin that the application of this hair, which implements the technical solution exemplified for the epoxy resin with self-lubricating group, modified tree
Rouge plays the role of the effect that toughening is carried out to phenolic resin, specifically, epoxy resin and phenolic resin are opened under curing agent
Ring reaction, connects epoxy branch in certain hydroxy positions of phenolic resin, increases the flexibility of phenolic resin, and adamantane group
With self-lubrication, drop can increase the motility of strand to a certain extent, so as to increase to phenolic resin
It is tough, low honeycomb solidify after brittleness, reduce honeycomb starved phenomenon, reduce production cost.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to accompanying drawings and in conjunction with the embodiments.
The above description is only an example of the present application, and the invention is not limited to described above and be shown in figure
Particular step and structure.Also, the detailed description to known method technology for brevity, is omitted here.It is not departing from
In the case where the scope of the present invention to those skilled in the art, various changes and changes are possible in this application.It is all this
Any modification, equivalent replacement, improvement and so within the spirit and principle of application, should be included in claims hereof
In range.
Claims (9)
1. a kind of honeycomb impregnating resin, feature exist, the impregnating resin includes: 90~95 mass of phenolic resin point, epoxy
5~10% mass of resin point, curing agent content are 1~3 mass point, and, ethyl alcohol.
2. impregnating resin according to claim 1, which is characterized in that the epoxy resin is the ring with self-lubricating group
Oxygen resin.
3. impregnating resin according to claim 2, which is characterized in that the self-lubricating group is adamantane group or class stone
One of ink sheet layer building stone or bn group.
4. impregnating resin according to claim 1, which is characterized in that the curing agent is diaminodiphenylsulfone, 4.4-
One of diaminodiphenyl-methane, lewis acid or a variety of mixing.
5. impregnating resin according to claim 4, which is characterized in that the lewis acid organic acid anhydride, boron trifluoride network
Close one or more mixing in object.
6. a kind of honeycomb, which is characterized in that the honeycomb includes honeycomb core material, and, impregnating resin；
The impregnating resin uses impregnating resin as described in any one in claim 1-5.
7. honeycomb according to claim 6, which is characterized in that the honeycomb core material be aramid fiber paper, plant fiber paper,
One of polyester fiber paper.
8. a kind of cellular preparation method, which is characterized in that the described method includes:
Impregnating resin as described in any one in claim 1-5 is added in impregnation pond；Honeycomb core material is immersed in the dipping
In resin；
It takes out from the honeycomb core material after dipping, solidifies after purification, obtain finished product honeycomb.
9. according to the method described in claim 8, it is characterized in that, program curing is using temperature programming, described program heating
Process are as follows: 75 DEG C × 0.5h+120 DEG C × 0.5h+175 DEG C × 1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551371.3A CN109722940A (en) | 2018-12-19 | 2018-12-19 | A kind of honeycomb impregnating resin, honeycomb and cellular preparation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811551371.3A CN109722940A (en) | 2018-12-19 | 2018-12-19 | A kind of honeycomb impregnating resin, honeycomb and cellular preparation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290944A (en) * | 2021-05-31 | 2021-08-24 | 芜湖创联新材料科技有限公司 | Method for manufacturing aramid paper honeycomb with uniform density |
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| CN106696360A (en) * | 2016-12-15 | 2017-05-24 | 中航复合材料有限责任公司 | Preparation method of para-aramid paper honeycomb core |
| CN106926516A (en) * | 2015-12-31 | 2017-07-07 | 比亚迪股份有限公司 | Composite honeycomb battenboard and preparation method thereof |
| CN107541018A (en) * | 2017-09-12 | 2018-01-05 | 四川力通复合材料科技有限公司 | A kind of aramid fiber cellular composite material enhancing impregnating resin and application thereof |
| CN108517715A (en) * | 2018-04-03 | 2018-09-11 | 东华大学 | A kind of paper honeycomb core material impregnant and its application |
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2018
- 2018-12-19 CN CN201811551371.3A patent/CN109722940A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013075998A (en) * | 2011-09-30 | 2013-04-25 | Idemitsu Kosan Co Ltd | Composition including adamantane derivative and fiber-reinforced composite material |
| CN105272885A (en) * | 2014-07-18 | 2016-01-27 | 北京化工大学 | Method for preparation of novel adamantane derivative |
| CN106926516A (en) * | 2015-12-31 | 2017-07-07 | 比亚迪股份有限公司 | Composite honeycomb battenboard and preparation method thereof |
| CN106696360A (en) * | 2016-12-15 | 2017-05-24 | 中航复合材料有限责任公司 | Preparation method of para-aramid paper honeycomb core |
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| CN107541018A (en) * | 2017-09-12 | 2018-01-05 | 四川力通复合材料科技有限公司 | A kind of aramid fiber cellular composite material enhancing impregnating resin and application thereof |
| CN108517715A (en) * | 2018-04-03 | 2018-09-11 | 东华大学 | A kind of paper honeycomb core material impregnant and its application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113290944A (en) * | 2021-05-31 | 2021-08-24 | 芜湖创联新材料科技有限公司 | Method for manufacturing aramid paper honeycomb with uniform density |
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