CN110317428A - A kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins - Google Patents
A kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins Download PDFInfo
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- CN110317428A CN110317428A CN201910640414.3A CN201910640414A CN110317428A CN 110317428 A CN110317428 A CN 110317428A CN 201910640414 A CN201910640414 A CN 201910640414A CN 110317428 A CN110317428 A CN 110317428A
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- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
The present invention relates to a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins suitable for composite molding, belong to thermoset resin material technical field.The resin system is made of 5 ~ 25 parts of bismaleimide, 100 parts of furane resins, 3 parts of p-methyl benzenesulfonic acid curing agent.Resin system casting matrix solidfied material prepared by the present invention has heat resistance more better than furane resins, wellability and acid resistance.For bismaleimide/furans blending resin system, curing agent p-methyl benzenesulfonic acid has and can be catalyzed bismaleimide and the cured effect of furane resins simultaneously, and the system viscosity is low, process window is wider, is suitable for composite molding.
Description
Technical field
The present invention relates to a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins and its preparations
Method belongs to thermoset resin material technical field.
Background technique
Furane resins are widely used in the neck such as corrosion resistant daub, casting sand due to having corrosion resistance outstanding
Domain, but there are poor processability, solidfied material brittleness is big, adhesion strength is bad, mechanical strength is low, solidification after-contraction it is big the disadvantages of, sternly
Furane resins are limited again in the application of field of compound material.Therefore, research preparation can be used for fiber-reinforced resin base composite wood
The furane resins of material are very necessary.
By by furans and other type thermosetting resins being a feasible side the shortcomings that blending to change its own
Method.Bimaleimide resin has stable aromatic rings, low water absorption, dielectric properties preferable as a kind of fire resistant resin
The advantages that, it is widely used in the fields such as electronic information, microelectronics packaging and aerospace.But bismaleimide has
Furans and bimaleimide resin are blended the advantages of can integrating the two, and then obtain one by the disadvantages of processing temperature is higher
The novel high performance resin of kind.But the research of bi-maleimide modified furane resins is concentrated mainly on furans first at present
Ring is grafted on other resins and then is blended again with bimaleimide resin.Such as P.F.Du is prepared for bismaleimide
The prepolymer of amine and end group polyurethane, mechanism and the novel linear for having studied Diels-Alder between them (DA) reaction are poly-
Self-healing function of the urethane under heat treatment condition, the results showed that determined by the ultimate tensile strength recovery after damaged healing
Self-healing rate be up to 80%；Maleimide is grafted on untreated T700 carbon fiber by W.Zhang etc., by surface treatment
Afterwards, then using furyl glycidol ether as raw material, furan group is introduced in epoxy systems, has studied carbon fiber surface and epoxy
The self-healing capability of DA key between matrix.Y.Liu etc. leads to using polyfunctional group maleimide and furfuran compound as monomer
DA and Retro-DA reaction is crossed, the crosslinked polymeric materials with thermal stability and removeability are obtained.But preparation is upper
Coatings system complex process is stated, and pollutant, the waste etc. that generate in the synthesis process are difficult to handle, and are not able to satisfy
Existing environmental requirement.
The present invention is prepared for a kind of heat-and corrosion-resistant strong mechanical performance bismaleimide/furane resins, can make its
On the basis of meeting composite molding, the high performance of matrix resin is realized.
Summary of the invention
The present invention is low and ask fiber wetness energy deficiency etc. in order to solve furane resins poor processability, hot property
Topic provides a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins and preparation method thereof.
The present invention is achieved by the following technical solutions: a kind of heat-and corrosion-resistant strong mechanical performance co-curing span carrys out acyl
Imines/furane resins is made of the raw material of following mass parts:
5~25 parts of bismaleimide
100 parts of furane resins
3 parts of p-methyl benzenesulfonic acid
The present invention, as curing agent, can be such that resin system viscosity reduces using p-methyl benzenesulfonic acid, process window extends, and pass through
The proportion for controlling copolymer, can be improved bismaleimide/furane resins system co-curing effect, is prepared heat-resisting resistance to
Corrode strong mechanical performance co-curing bismaleimide/furane resins.
Preferably, the furane resins be furfuryl alcohol furfural furane resins, furfuralcohol furan resin, furfuryl alcohol ureaformaldehyde furane resins,
One of furfural acetone furane resins.
Preferably, the bismaleimide is one in aromatic series bismaleimide and aliphatic bismaleimide
Kind.
Invention further provides a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furans
The preparation method of resin, comprising the following steps: weigh furane resins (full name in English be Furan Resin, be abbreviated as FR) and pair
Maleimide resin (English is BMI), is added in container, 5~10min is mixed, then weigh curing agent to toluene sulphur
Acid (English is PTSA), is added to container, continues 5~10min of stirring, resin adhesive liquid is made；Mixed liquor is slowly poured into pre-
Heat is simultaneously coated in the stainless steel mould of release agent, solidifies 8~14h at a temperature of 60 DEG C~220 DEG C, and natural cooling demoulds, then
Obtain bismaleimide/furans/p-methyl benzenesulfonic acid (BMI/FR/PTSA is abbreviated as BFP) resin cured matter.
As the further improvement of preparation method technical solution of the present invention, the p-methyl benzenesulfonic acid solidifies bismaleimide
Amine/furane resins system mechanism include between bismaleimide and furane resins Diels-Alder (DA) reaction, furans
The dehydration condensation of resin and the high temperature self-polymeric reaction of bismaleimide.
It is double with the increase of bismaleimide amine content as the further improvement of preparation method technical solution of the present invention
Maleimide/furane resins solidfied material mechanical property first rises to be declined afterwards, when the content of bismaleimide is 20wt%
When, the mechanical property of solidfied material is best, bending strength, bending modulus and impact strength be respectively 34.50MPa, 3.95GPa and
6.81kJ·m-2。
It is prepared when bismaleimide is 20 parts as the further improvement of preparation method technical solution of the present invention
Bismaleimide/furane resins solidfied material heat resistance is best.
For the further description contents of the present invention, the present invention becomes to the viscosity variation of each resin system at room temperature
Gesture is analyzed, and test result is shown in Table 1.
The basic processing performance test result of each resin system of table 1
As shown in Table 1, for bismaleimide/furans/p-methyl benzenesulfonic acid resin system, the addition of bismaleimide
The solidification temperature of furane resins is reduced well, and the system viscosity is low, process window is long, be suitable for composite molding.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 be ln [Af (α)]~ln (1- α) figure under the different heating rate of BFP-25 resin system (embodiment 5) (a low temperature,
B high temperature).Fig. 2 is ln [Af (α)]~α figure (a low temperature, b high temperature) under the different heating rates of BFP-25 resin system (embodiment 5).
The curing mechanism of thermosetting resin is broadly divided into n order reaction and two kinds of self-catalyzed reaction, using Friedman equation
To further determine the curing mechanism of BFP25 resin system.
N grades of curing kinetics functions: f (α)=(1- α)n(formula 2)
N is n order reaction in formula (2), and α is curing degree, and formula (2) are substituted into formula (1) and obtain following equation:
Obtaining the Ea under BFP25 resin system low temperature and high temperature by Crane equation is respectively 68.33kJmol-1With
86.88kJ·mol-1.Be abscissa with ln (1- α), ln [Af (α)] is ordinate mapping, if the two there are linear relationship, should
Reaction is n order reaction；If ln (1- α) between -0.51~-0.22, i.e. between 0.2~0.4, ln [Af (α)] maximum α occurs
Value, then the reaction is self-catalyzed reaction.
By Fig. 1 and Fig. 2 it is found that being not belonging to linear relationship between ln [Af (α)] and ln (1- α), but ln (1- α)-
Between 0.51~-0.22, so the reaction belongs to self-catalyzed reaction.Fig. 1 is ln under BFP25 resin system difference heating rate
[Af (α)]~ln (1- α) figure (a low temperature, b high temperature), Fig. 2 are ln [Af (α)]~α under BFP25 resin system difference heating rate
Scheme (a low temperature, b high temperature).
Fig. 3 is the DSC of furans (FR), bismaleimide (BMI) and bismaleimide/furane resins (BFP) resin
Curve.As seen from the figure, the polymerization behavior of pure BMI leads to occur exothermic peak at 241 DEG C, and FR has a melting to put at 80 DEG C or so
Thermal spike, pure BMI have a melting endothermic peak at 163 DEG C.The DSC curve of BFP co-mixing system has very with single pure compound
It is different.With the increase of BMI content, start exothermic peak occur at 68 DEG C, shows the hair of inverse Diels-Alder (DA) reaction
Raw, the melting endothermic peak at 132 DEG C gradually becomes smaller and becomes flat, and illustrates that the addition of BMI significantly improves adding for BFP blend
Work performance.Second curing exothermic peak of BFP system is below the curing exothermic peak (241 DEG C) of BMI, table all at 150 DEG C or so
The solidification temperature of bright BFP system is lower compared with BMI, that is, improves the processing performance of BFP system.These results indicate that FR,
Cross-linking reaction has occurred in BMI during heating.
Fig. 4 is the infrared spectrogram of BMI and FR, and the characteristic absorption peak of each group is listed in the table below.
The infrared spectrogram Zhong Ge functional group infrared absorption peak of table 2 BMI and FR
Fig. 5 is BFP-25 system (embodiment 5) according to 40 DEG C/2h+60 DEG C/2h+80 DEG C/2h+100 DEG C/2h+120 DEG C/2h
+ 140 DEG C/2h+160 DEG C/2h+180 DEG C/2h+200 DEG C/2h+220 DEG C/2h carries out gradient increased temperature solidification, and different cure stages are solid
The infrared spectrum of compound.In 20-100 DEG C of temperature range, 1014cm-1It is symmetrical that the absorption peak at place corresponds to furan nucleus=C-O-C=
Stretching vibration peak intensity reduces, 1145cm-1Locate on furan nucleus=the deformation vibration peak of C-H disappears and is attributed to furan nucleus constantly
It is consumed；833cm-1The C=C double bond deformation vibration the absworption peak that place corresponds on BMI imide ring is gradually decrease to disappear, and illustrates Asia
The C=C double bond of amine ring is opened, and in 1701cm-1The absorption peak at place is constant at 40-80 DEG C, when illustrating temperature range reaction
BMI lactone group is not affected；In 1778cm-1Locate the characteristic peak that the new peak occurred is DA group, and 882cm-1The furans at place
Disubstituted characteristic absorption peak reduces on ring, illustrates DA fully reacting.The endothermic peak at 83 DEG C on DSC figure is in the range.
In 100-120 DEG C of temperature range, 833cm-1The characteristic absorption peak for locating the C=C double bond of BMI occurs again, and 685cm-1Place=
C-H out-of-plane bending vibration absorption peak becomes strong, shows the presence of BMI；And 1014cm-1、1701cm-1The absorption peak at place becomes strong, also demonstrate,proves
The presence of FR is illustrated, illustrates the generation of inverse DA reaction.In 140-220 DEG C of temperature range, furane resins terminal aldehyde groups
1676cm-1Characteristic absorption peak disappears substantially, shows furane resins dehydrating polycondensation at macromolecular chain.833cm-1Locate the C=of imide ring
C double bond absorption peak and 685cm-1The absorption peak at place disappears, and shows that self-polymeric reaction has occurred in BMI.Shown in the reaction mechanism is as follows.
Table 3 is the mechanical property of FR, BMI and BFP (embodiment 1-5) solidfied material.
The mechanical property of 3 FR, BMI and BFP solidfied material of table
Fig. 6 is the weight-loss curve of FR, BMI and BFP system.Table 5 is that co-mixing system prepared by comparative example and embodiment 1-5 is solid
The physical and chemical properties of compound.
The physical and chemical properties of co-mixing system solidfied material prepared by table 5
As can be seen that BFP co-mixing system has a small weightless platform between 100-250 DEG C of low temperature from Fig. 6 and table 5
Rank, this is because furane resins have released the small molecules such as water when solidifying.With the increase of BMI additive amount, BFP system 10% is lost
Degree of reviewing Td10 is increased, and from 311.6,357.1,357.8,360.3,369.1 to 360.1 DEG C, this may be since BMI has
There is higher thermal stability, improves the thermal stability of BFP co-mixing system.Meanwhile compared with pure FR system, BFP mixture
The carbon residue of system is higher, this may be the thermal induction process due to furans and maleimide that may be present during heating,
To produce some heat-resisting aromatic compounds with heat-proof quality.And BMI addition so that BFP system decomposition by
The decomposition of two steps becomes step decomposition.And when the content of BMI is 20wt%, the thermal stability of BFP system is best, and Td10 is
369.1 DEG C, maximum weight loss rate temperature Tmax is 451.5 DEG C or so.Therefore, the addition of BMI not only increases point of BFP system
Temperature is solved, the decomposition mechanism for reducing FR resin of high degree is gone back, shows that the addition of BMI resin improves furan well
The thermal stability of furane resins.
As shown in Table 5: resin system casting matrix solidfied material prepared by the present invention has excellent heat resistance, acid resistance
Can, contact angle test between resin matrix and fiber, can the result shows that the wellability between the resin system and fiber is preferable
To widen furane resins in the application range in polymer matrix composites field, while showing that the addition of bismaleimide can be more
The performance of good raising resin system.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Technical solution of the present invention is described in detail with reference to the accompanying drawing.
Performance test:
1, differential thermal thermogravimetric point has been carried out to resin system using thermogravimetric analyzer (TGA) according to national standard GB/T13464-2008
Analysis test.
2, contact angle test: using the DSA100S type contact angle tester test resin matrix of KRUSS company in fiber list
Contact angle on silk, to show the wellability between resin matrix and fiber.
3, acid resistance is tested: according to GB/T3587-2005 requirement of experiment, hydrochloric acid solution of the sample in mass fraction 10%
In impregnated at room temperature, the time is respectively 1d, 3d, 7d, 14d, 30d.The quality that front and back casting resin is impregnated in measurement becomes
Rate and change rate of strength.
4, DSC is tested: being tested using Mei Tele company DSC-1 type differential scanning calorimeter, in 25-300 DEG C of nitrogen
Atmosphere encloses lower progress (specific gas flow rate 50mLmin-1), heating rate is 10 DEG C of min-1。
5, FTIR is tested: using resolution ratio for 4cm-1With scanning range 400-4000cm-1Total reflection Nicolet 5700
Type infrared spectrometer is tested.
6, bending property is tested: being tested according to the bending property of 2567-2008 pairs of casting matrixs of GB/T.
7, impact property is tested: being tested according to impact property of the GB/T 2567-2008 to casting matrix.
Technical solution of the present invention is described in detail below by specific embodiment.
Comparative example 1
Furfuryl alcohol furfural furane resins 100g is weighed, is added to the container, p-methyl benzenesulfonic acid 3g is then weighed, same appearance is added
Device stirs 10min, and resin adhesive liquid is made；The resin adhesive liquid of preparation is slowly poured into the stainless steel for preheating and being coated with release agent
In mold, 60 DEG C of solidifications 2h, 80 DEG C of solidifications 2h, 100 DEG C of solidifications 2h, 120 DEG C of solidifications 2h, 140 DEG C of solidifications 2h, 170 DEG C of solidification 2h,
200 DEG C of solidifications 2h, 220 DEG C of solidification 2h obtain the casting matrix solidfied material of black non transparent.Casting resin solidfied material 10% is weightless
Temperature is 311.6 DEG C, and decomposition mechanism temperature is respectively Tmax1(108.2 DEG C) and Tmax2(327.4 DEG C), the carbon residue at 800 DEG C
It is 46.4%.Contact angle between the resin system and fibre single thread is 71.3 °.After impregnating 30 days in acid solution, resin is poured
The mass change of body of casting solidfied material is 3.87%, and strength retention ratio 92.11%, acid resistance reaches primary standard.
Embodiment 1
Furfuryl alcohol furfural furane resins 100g and diphenylmethane diamine type bismaleimide 5g are weighed, container is added to, is mixed
Stirring 10min is closed, p-methyl benzenesulfonic acid 3g is then weighed, is added in same container, continues to stir 10min, resin adhesive liquid is made；
The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, 60 DEG C of solidification 2h, 80 DEG C of solidifications
2h, 100 DEG C of solidification 2h, 120 DEG C of solidification 2h, 140 DEG C of solidification 2h, 170 DEG C of solidification 2h, 200 DEG C of solidification 2h, 220 DEG C of solidification 2h are obtained
To the casting matrix solidfied material of black non transparent.10% weightless temperature of casting resin solidfied material is 357.1 DEG C, decomposition mechanism
Temperature is respectively Tmax1 (217.9 DEG C) and Tmax2 (459.4 DEG C), and the carbon residue at 800 DEG C is 49.8%.The resin system and fibre
Tieing up the contact angle between monofilament is 61.1 °.After impregnating 30 days in acid solution, the mass change of casting resin is
5.05%, strength retention ratio 88.38%, acid resistance reaches primary standard.
Embodiment 2
Furfuryl alcohol furfural furane resins 100g and diphenylmethane diamine type bismaleimide 10g are weighed, is added in container,
10min is mixed, then weighs p-methyl benzenesulfonic acid 3g, is added to same container, continues to stir 10min, resin adhesive liquid is made；
The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, 60 DEG C of solidification 2h, 80 DEG C of solidifications
2h, 100 DEG C of solidification 2h, 120 DEG C of solidification 2h, 140 DEG C of solidification 2h, 170 DEG C of solidification 2h, 200 DEG C of solidification 2h, 220 DEG C of solidification 2h are obtained
To the casting matrix solidfied material of black non transparent.10% weightless temperature of casting resin solidfied material is 357.8 DEG C, decomposition mechanism
Temperature is respectively Tmax1 (247.7 DEG C) and Tmax2 (447.7 DEG C), and the carbon residue at 800 DEG C is 49.1%.The resin system and fibre
Tieing up the contact angle between monofilament is 51.3 °.After impregnating 30 days in acid solution, the mass change of casting resin is
3.95%, strength retention ratio 80.48%, acid resistance reaches primary standard.
Embodiment 3
Furfuryl alcohol furfural furane resins 100g and diphenylmethane diamine type bismaleimide 15g are weighed, is added in container,
10min is mixed, then weighs p-methyl benzenesulfonic acid 3g, is added to same container, continues to stir 10min, resin adhesive liquid is made；
The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, 60 DEG C of solidification 2h, 80 DEG C of solidifications
2h, 100 DEG C of solidification 2h, 120 DEG C of solidification 2h, 140 DEG C of solidification 2h, 170 DEG C of solidification 2h, 200 DEG C of solidification 2h, 220 DEG C of solidification 2h are obtained
To the casting matrix solidfied material of black non transparent.10% weightless temperature of casting resin solidfied material is 360.3 DEG C, decomposition mechanism
Temperature is respectively Tmax1 (245.8 DEG C) and Tmax2 (452.3 DEG C), and the carbon residue at 800 DEG C is 48.3%.The resin system and fibre
Tieing up the contact angle between monofilament is 47.7 °.After impregnating 30 days in acid solution, the mass change of casting resin is
3.98%, strength retention ratio 85.21%, acid resistance reaches primary standard.
Embodiment 4
Furfuryl alcohol furfural furane resins 100g and diphenylmethane diamine type bismaleimide 20g are weighed, is added in container,
10min is mixed, then weighs p-methyl benzenesulfonic acid 3g, is added to same container, continues to stir 10min, resin adhesive liquid is made；
The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, 60 DEG C of solidification 2h, 80 DEG C of solidifications
2h, 100 DEG C of solidification 2h, 120 DEG C of solidification 2h, 140 DEG C of solidification 2h, 170 DEG C of solidification 2h, 200 DEG C of solidification 2h, 220 DEG C of solidification 2h are obtained
To the casting matrix solidfied material of black non transparent.10% weightless temperature of casting resin solidfied material is 369.1 DEG C, decomposition mechanism
Temperature is respectively Tmax1 (244.5 DEG C) and Tmax2 (451.5 DEG C), and the carbon residue at 800 DEG C is 48.3%.The resin system and fibre
Tieing up the contact angle between monofilament is 33.4 °.After impregnating 30 days in acid solution, the mass change of casting resin is
3.52%, strength retention ratio 97.27%, acid resistance reaches primary standard.
Embodiment 5
Furfuryl alcohol furfural furane resins 100g and diphenylmethane diamine type bismaleimide 25g are weighed, is added in container,
10min is mixed, then weighs p-methyl benzenesulfonic acid 3g, is added to same container, continues to stir 10min, resin adhesive liquid is made；
The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, 60 DEG C of solidification 2h, 80 DEG C of solidifications
2h, 100 DEG C of solidification 2h, 120 DEG C of solidification 2h, 140 DEG C of solidification 2h, 170 DEG C of solidification 2h, 200 DEG C of solidification 2h, 220 DEG C of solidification 2h are obtained
To the casting matrix solidfied material of black non transparent.10% weightless temperature of casting resin solidfied material is 360.1 DEG C, decomposition mechanism
Temperature is respectively Tmax1 (239.0 DEG C) and Tmax2 (451.5 DEG C), and the carbon residue at 800 DEG C is 51.2%.The resin system and fibre
Tieing up the contact angle between monofilament is 39.7 °.After impregnating 30 days in acid solution, the mass change of casting resin is
3.64%, strength retention ratio 86.68%, acid resistance reaches primary standard.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
1. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins, which is characterized in that be by following
What the raw material of mass parts was constituted:
5 ~ 25 parts of bismaleimide
100 parts of furane resins
3 parts of p-methyl benzenesulfonic acid.
2. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins according to claim 1,
It is characterized in that, the furane resins are furfuryl alcohol furfural furane resins, furfuralcohol furan resin, furfuryl alcohol ureaformaldehyde furane resins, furfural
One of acetone furane resins.
3. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins according to claim 1,
It is characterized in that, the bismaleimide is one of aromatic series bismaleimide and aliphatic bismaleimide.
4. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furans as described in claims 1 to 3 is any
The preparation method of resin, which comprises the following steps: weigh furane resins and bimaleimide resin, be added to
In container, 5 ~ 10min is mixed, then weigh curing agent p-methyl benzenesulfonic acid, is added to container, continues 5 ~ 10min of stirring, is made
Resin adhesive liquid；The resin adhesive liquid of preparation is slowly poured into and preheats and is coated in the stainless steel mould of release agent, in 60 DEG C ~ 220
Solidify 8 ~ 14 hours at a temperature of DEG C, natural cooling, demoulds, obtain bismaleimide/furane resins solidfied material.
5. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins according to claim 4
Preparation method, which is characterized in that the p-methyl benzenesulfonic acid solidifies bismaleimide/furane resins resin system mechanism packet
Diels-Alder reaction, the dehydration condensation of furane resins and the span included between bismaleimide and furane resins comes
Imido high temperature self-polymeric reaction.
6. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins according to claim 5
Preparation method, which is characterized in that when the content of bismaleimide be 20 wt% of furane resins when, the mechanical property of solidfied material
Most preferably, bending strength, bending modulus and impact strength are respectively 34.50 MPa, 3.95 GPa and 6.81 kJm-2。
7. a kind of heat-and corrosion-resistant strong mechanical performance co-curing bismaleimide/furane resins according to claim 5
Preparation method, which is characterized in that when bismaleimide be 20 wt% of furane resins constantly, prepared bismaleimide/
The heat resistance of furane resins solidfied material is best.
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