CN110294931A - A kind of bimaleimide resin base body and the preparation method and application thereof - Google Patents
A kind of bimaleimide resin base body and the preparation method and application thereof Download PDFInfo
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- 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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
- C08J5/042—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres with carbon fibres
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- 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
- C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
- C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2379/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- 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
- C08J2471/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2471/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2471/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2479/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2461/00 - C08J2477/00
- C08J2479/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08J2479/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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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
- C08J2481/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen, or carbon only; Polysulfones; Derivatives of such polymers
- C08J2481/06—Polysulfones; Polyethersulfones
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Abstract
The present invention provides a kind of bimaleimide resin base bodies and the preparation method and application thereof, belong to prepreg preparation technical field.The bimaleimide resin base body, its raw material includes following components: bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic polyimide micro-size particles, the combination process modifying agent is made of diallyl bisphenol and liquid epoxies, the thermoplastic resin is dissolved in the combination process modifying agent, and the thermoplastic polyimide micro-size particles is swollen in the combination process modifying agent.The resin matrix improves the interface binding power of thermoplastic resin and thermosetting resin, the anti-micro-crack ability after improving resin matrix in conjunction with fiber by phase angle；The shock resistance compressive strength of the composite material of resin matrix preparation is obviously improved, CAI may be up to 340MPa, the resin matrix has good craftsmanship and being coated with property simultaneously, can meet requirement of the aerospace field to carbon fibre composite high impact-resistant toughness.
Description
Technical field
The present invention relates to prepreg preparation technical field, a kind of bimaleimide resin base body and its system are specifically provided
Preparation Method and application.
Background technique
Bimaleimide resin (BMI) is the highly cross-linked polymer with tridimensional network, and reticular structure assigns
The good characteristics such as its excellent high temperature resistant, radiation hardness, wet-heat resisting, good mechanical property and dimensional stability, therefore span comes
Acid imide and its sweat connecting material are widely used in Aeronautics and Astronautics major sections and composite material structural member.But span carrys out acyl
Imide resin matrix poor toughness carbon fibre composite shock resistance lesion capability difference corresponding with its itself is to influence it by into one
Step expands an important factor for application.
Improving the most common method of carbon fibre reinforced composite impact resistance is to improve matrix resin (bismaleimide
Amine) toughness, toughening is carried out by Polymerization induced phase separation frequently with soluble thermoplastic resin.Although the above method is one
Determine the toughness that matrix resin is improved in degree, but the addition of a large amount of thermoplastic resins can change the feel stickiness of matrix resin, shadow
Matrix resin processing performance is rung, increases operation difficulty when carbon/span prepreg prepares composite material, and toughening effect is paid no attention to
Think, the failure of composite material laminated board cannot be effectively inhibited.
Summary of the invention
Aiming at the problems existing in the prior art, the embodiment of the invention provides a kind of bimaleimide resin base body and
Preparation method and application, the resin matrix improve the interface cohesion of thermoplastic resin and thermosetting resin by phase angle
Power, the anti-micro-crack ability after improving resin matrix in conjunction with fiber；The resin matrix is answered with prepared by carbon fiber reinforcement
The shock resistance compressive strength of condensation material is obviously improved；The resin matrix has good craftsmanship and being coated with property simultaneously, can
Meet requirement of the aerospace field to carbon fibre composite high impact-resistant toughness.
The technical solution of the invention is as follows:
A kind of bimaleimide resin base body, raw material includes following components:
Bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic polyimide micro-size particles, it is described
Combination process modifying agent is made of diallyl bisphenol and liquid epoxies, and the thermoplastic resin is dissolved in described compound
Thermoplastic polyimide micro-size particles described in process modification agent is swollen in the combination process modifying agent.
In an alternative embodiment, the bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic poly
The mass ratio of acid imide micro-size particles is 100:60-90:5-15:10-45.
In an alternative embodiment, the mass ratio of the diallyl bisphenol and epoxy resin is 75:5-15.
In an alternative embodiment, the bismaleimide resin monomer is diphenylmethane diamine type span monomer, toluenediamine type
One of span monomer, m-phenylene diamine (MPD) type span monomer or diphenyldiamine type span monomer or more than one combinations.
In an alternative embodiment, the bismaleimide resin monomer is diphenylmethane diamine type monomer and toluenediamine type span
Monomer is that 50:30-60 ratio mixes according to mass ratio.
In an alternative embodiment, the thermoplastic resin be one of polyether sulphone, poly(aryl ether ketone) or polyphenylene oxide or
More than one combinations.
In an alternative embodiment, the average grain diameter of the thermoplastic polyimide micro-size particles is 5-40 μm.
In an alternative embodiment, the liquid epoxies is bisphenol A type epoxy resin, bisphenol f type epoxy resin, hydrogen
Change one of bisphenol A type epoxy resin or more than one combinations.
A kind of preparation method of bimaleimide resin base body, comprising the following steps:
(1) any one of -8 raw material proportionings provided weigh raw material according to claim 1:
(2) by weighed bismaleimide resin monomer and combination process modifying agent mixing pre-polymerization, weighed thermoplastic resin is added,
It is mixed to get dissolution phase；
(3) weighed thermoplastic polyimide micro-size particles is added in the dissolution phase, is mixed, cooling obtains double
Maleimide resin matrix.
In an alternative embodiment, after weighed bismaleimide resin monomer is mixed with combination process modifying agent in step (2)
In 120-130 DEG C of heat preservation pre-polymerization 20-40min, weighed thermoplastic resin stirring 20-60min is added after being cooled to 80-120 DEG C,
It is mixed to get dissolution phase.
In an alternative embodiment, the temperature of the dissolution phase is maintained 60-90 DEG C in step (3), is added weighed
Thermoplastic polyimide micro-size particles stirs 10-30min, is mixed to form swelling phase.
Application of the above-mentioned bimaleimide resin base body in sweat connecting material.
In an alternative embodiment, the reinforcing fiber of the prepreg is carbon fiber, gel content 30%-50%.
Compared with the prior art, the invention has the advantages that:
Relative to the method for toughening of traditional bismaleimide resin composite material matrix, the present invention is imitated with more practicability and toughening
Fruit.It can dissolve thermoplastic resin by selection and form the basis increasing that resin system is mutually realized in single dissolution in bismaleimide resin system
It is tough, be conducive to the transmitting of carbon fibre composite load；By the way that swellable thermoplasticity micro-size particles is added in resin system,
Since particle is swollen in combination process modifying agent, the interface cohesion of thermoplastic particles and bismaleimide resin system is improved
Power, and when the resin system and reinforcing fiber compound tense, since thermoplasticity micro particles are swollen without being dissolved in matrix resin
In, thus can be migrated in the curing process to reinforcing fiber surface, realize efficient in-situ flexible.Pass through " dissolution-swelling " binary
The shock resistance lesion capability of phase coordination plasticizing method, the toughness and its composite material that significantly improve matrix (compresses after impact
Intensity is up to 340MPa).It is compared with the traditional method, it is right since thermoplasticity micro-size particles is not dissolved in bismaleimide resin system
The viscosity and room temperature viscous effects of resin matrix are smaller, which is 20,000-80,000Pas, heating
MV minium viscosity in the process ensure that hot melt prepreg tree on the basis of realization composite material high toughening in 2-10Pas
The good craftsmanship of resin system.Method for toughening provided by the invention is simple and easy, the engineering system suitable for high tenacity bismaleimide resin
Standby and its sweat connecting material large-scale batch production.
Detailed description of the invention
Fig. 1 is the bismaleimide resin matrix rheological behavior curve (swelling phase-dissolution phase binary phase toughening) that embodiment 1 obtains
(25 DEG C -180 DEG C, 1 DEG C/min)；
Fig. 2 is (25 DEG C -180 of the bismaleimide resin matrix rheological behavior curve (uniform dissolution phase toughening) that comparative example 1 obtains
DEG C, 1 DEG C/min).
Specific embodiment
A specific embodiment of the invention is described in further details below with reference to drawings and the specific embodiments.
The embodiment of the invention provides a kind of bimaleimide resin base bodies, and raw material includes following components:
Bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic polyimide micro-size particles, it is described
Combination process modifying agent is made of diallyl bisphenol and liquid epoxies, and the thermoplastic resin is dissolved in described compound
Process modification agent, the thermoplastic polyimide micro-size particles are swollen in the combination process modifying agent.
Specifically, the bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic polyimide micron
The mass ratio of grade particle is 100:60-90:5-15:10-45.When each component is prepared according to aforementioned proportion, span both can guarantee
The hot melt prepreg of bismaleimide resin matrix preparation have good craftsmanship and being coated with property (resin viscosity at ambient temperature 20,
000-80,000Pas, the MV minium viscosity in temperature-rise period is in 2-10Pas), and can guarantee what hot melt prepreg was prepared into
Compressive strength is up to 340MPa after composite impact.
Specifically, the mass ratio of the diallyl bisphenol and epoxy resin is 75:5-15.It is carried out when using the ratio
When mixing, the abundant dissolution of thermoplastic resin not only can ensure that, but also can guarantee the swelling of thermoplastic polyimide micro-size particles.
Wherein, the preferred diphenylmethane diamine type span monomer of the bismaleimide resin monomer, toluenediamine type span monomer,
One of paraphenylene diamine type span monomer or diphenyldiamine type span monomer or more than one combinations, more preferable diphenyl-methane two
Amine type monomer and toluenediamine type span monomer are mixed according to mass ratio for 50:30-60 ratio, double using preferred two kinds
Horse monomer mixes according to the above ratio can obtain the resin system that fusing point reduces；The preferred polyether sulphone of the thermoplastic resin,
One of poly(aryl ether ketone) or polyphenylene oxide or more than one combinations, more preferable polyether sulphone or polyether-ether-ketone；The liquid epoxy
Resin is one of bisphenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-A epoxy resin or more than one groups
It closes, using above-mentioned liquid-state epoxy resin, can assign resin system room temperature good viscosity, while there is suitable reactivity,
Certifiable resin has the storage period extended.Specifically, the average grain diameter of the thermoplastic polyimide micro-size particles is excellent
Select 5-40 μm, more preferable 5-20 μm.The in-situ flexible effect of swollen particles can be improved in the polyimide particle of the particle size range, into
The shock resistance of one step raising material.
The embodiment of the invention also provides a kind of preparation methods of bimaleimide resin base body, comprising the following steps:
Step (1): raw material is weighed according to raw material proportioning provided by the above embodiment；
Related raw material be discussed in detail and corresponding beneficial effect is referring to above-mentioned raw materials embodiment, details are not described herein；
Step (2): by weighed bismaleimide resin monomer and combination process modifying agent mixing pre-polymerization, weighed thermoplasticity is added
Resin is mixed to get dissolution phase；
Specifically, preferably that weighed bismaleimide resin monomer and combination process is modified in step (2) in the embodiment of the present invention
In 120-130 DEG C of heat preservation pre-polymerization 20-40min after agent mixing, weighed thermoplastic resin heat preservation is added after being cooled to 80-120 DEG C
20-60min is stirred, uniform dissolution phase is mixed to get；When using this method mixed when, not only can guarantee it is uniformly mixed, but also
Can guarantee that the rheological behavior of resin system is controllable and forming process in good process.
Step (3): weighed thermoplastic polyimide micro-size particles is added in step (2) described dissolution phase, mixing
Stirring 10min~30min makes it be further formed uniform swelling phase with combination process modifying agent, obtains high tenacity span and carrys out acyl
Imide resin matrix.
Specifically, the temperature in the embodiment of the present invention when step (3) described mixing maintains 60-90 DEG C, is added and claims
The thermoplastic polyimide micro-size particles stirring 10-30min taken, is mixed to get swelling phase.It is mixed when using this method
When, not only can guarantee it is uniformly mixed, but also be avoided that due to temperature should not caused by swelling be mutually difficult to be formed.
The embodiment of the invention also provides application of the above-mentioned bimaleimide resin base body in sweat connecting material.
Wherein, the reinforcing fiber of the prepreg is carbon fiber, gel content 30%-50%.
The following are several specific embodiments of the invention, and raw materials used each embodiment is commercial product:
Embodiment 1
A kind of high tenacity bimaleimide resin base body is present embodiments provided, specific preparation method includes:
Step (1): 100kg bismaleimide resin monomer (diphenylmethane diamine type monomer, BMI-01,50kg are weighed；Toluenediamine
Type span monomer, BMI-05,50kg；Honghu span new material Science and Technology Ltd.), 10kg polyether sulphone thermoplastic resin (PES
5003P, SUMITOMO CHEMICAL Chemical Co., Ltd.), 75kg diallyl bisphenol, 5kg epoxy resin (bisphenol f type epoxy resin,
NPEF-170, South Epoxy Resin (Kunshan) Co., Ltd.), 45kg polyimide thermoplastic's property micro particles (PI2080, average grain
10 μm of diameter, Upjohn company, the U.S.)；
Step (2): the combination process that weighed bismaleimide resin monomer is formed with diallyl bisphenol and epoxy resin is changed
Property agent mixing after in 130 DEG C of heat preservation pre-polymerization 20min, weighed polyether sulphone thermoplastic resin is added after being cooled to 120 DEG C and keeps the temperature
And 30min is stirred, prepare uniform dissolution phase；
Step (3) obtains weighed polyimide thermoplastic's property micro particles in 82 DEG C of addition above-mentioned steps (2) uniform
Dissolution phase in, stirring 20min, which is uniformly dispersed, makes it form uniform swelling phase with combination process modifying agent.It is cooled to room temperature most
The prepreg bismaleimide resin matrix of " dissolution-swelling binary phase " coordination plasticizing is obtained eventually.
Resin-cast body fracture toughness KICFor 2.4J/m2；Bismaleimide resin matrix and domestic TG800-12k unidirectional carbon fiber are soaked
Sweat connecting material is made in stain, which is 35%, has good being coated with property and sticky (matrix resin room temperature
Viscosity 20,000Pas, the MV minium viscosity in temperature-rise period are 7.9Pas), it is pressed after the impact of composite material is tested after solidification
Contracting intensity is 340MPa.
Comparative example 1
The basic resin system is replaced in (2) other than polyimide particle in addition to using the thermoplastic poly ether sulfone of equivalent, other
Resin Composition is identical with embodiment 1.The prepreg for obtaining the single dissolution phase toughening of thermoplastic resin polyether sulfone is double with toughness
Horse resin matrix.Resin-cast body fracture toughness KICFor 2.0J/m2, heat is made with domestic TG800-12k unidirectional carbon fiber dipping
Molten prepreg, the inclined dry-laid property covered of prepreg is deteriorated, and (resin matrix viscosity at ambient temperature is 110,000Pas, minimum in temperature-rise period
Viscosity is 14Pas), the post-impact compression that composite material is tested after solidification is 180MPa.
Comparative example 2
The basic resin system uses the complete undissolvable polyamidoimide PAI of equivalent in addition to step (2)
(Solvay company4000TF) replace thermoplastic polyimide particle that cannot form swelling due to almost totally insoluble
Outside phase, other resin Compositions are identical with embodiment 1.Obtain polyether sulfone and polyamide polyimide thermoplastic's property resin toughening
Prepreg toughness bismaleimide resin matrix.Resin-cast body fracture toughness KICFor 1.4J/m2, impregnate and make with T800 unidirectional carbon fiber
At sweat connecting material, being coated with property and good operability, but since PAI does not dissolve yet non-swelling, boundary in mixing and solidification process
Face binding force is weak, and the post-impact compression that composite material is tested after solidification is 130MPa.
Embodiment 2
A kind of high tenacity bimaleimide resin base body is present embodiments provided, specific preparation method includes:
Step (1): 100kg bismaleimide resin monomer (diphenylmethane diamine type span monomer, BDM, northwest chemical research are weighed
Institute), 10kg poly(aryl ether ketone) thermoplastic resin (PEK-C, Xuzhou engineering plastics factory), 80kg diallyl bisphenol, 10kg asphalt mixtures modified by epoxy resin
Rouge (bisphenol A type epoxy resin, CYD-115, Yueyang petrochemical industry epoxy resin factory), 40kg polyimide particle (PI Moulding powder
SS100P, 10 microns, Hangzhou Su Mengte Science and Technology Ltd.)；
Step (2): the combination process that weighed bismaleimide resin monomer is formed with diallyl bisphenol and epoxy resin is changed
Property agent mixing after in 120 DEG C of heat preservation pre-polymerization 20min, weighed poly(aryl ether ketone) thermoplastic resin is added after being cooled to 110 DEG C and keeps the temperature
And 60min is stirred, prepare uniform dissolution phase；Step (3) is by weighed polyimide particle in 90 DEG C of addition above-mentioned steps (2)
In obtained uniform dissolution phase, stirring 10min dispersion makes it form swelling phase with combination process modifying agent.It is cooled to room temperature most
The prepreg bismaleimide resin matrix of " dissolution-swelling binary phase " coordination plasticizing is obtained eventually.
Resin-cast body fracture toughness KICFor 2.1J/m2；Heat is made in bismaleimide resin matrix and T700 unidirectional carbon fiber dipping
Molten prepreg, the sweat connecting material gel content are 30%, have good being coated with property and viscosity (matrix resin viscosity at ambient temperature 30,
000Pas, the MV minium viscosity in temperature-rise period are 4Pas), the post-impact compression that composite material is tested after solidification is
280MPa。
Embodiment 3
A kind of high tenacity bimaleimide resin base body is present embodiments provided, specific preparation method includes:
Step (1): weighing 100kg bismaleimide resin monomer, (m-phenylene diamine (MPD) type span monomer, the beneficial chemical industry in heavy Oil Reservoir of Henan Biyang Depression city day have
Limit company), 12kg polyether sulphone thermoplastic resin (PES 3200, Beijing Kai Ruijie is at new material Science and Technology Ltd.), 70kg
Diallyl bisphenol, 12kg epoxy resin (bisphenol f type epoxy resin, NPEF-170, South Asia epoxy resin (Kunshan) limited public affairs
Department), 25kg polyimide particle (SK-0180,10 microns, Changzhou Shang Ke new material Co., Ltd)；
Step (2): the combination process that weighed bismaleimide resin monomer is formed with diallyl bisphenol and epoxy resin is changed
Property agent mixing after in 120 DEG C of heat preservation pre-polymerization 30min, weighed poly(aryl ether ketone) thermoplastic resin is added after being cooled to 100 DEG C and keeps the temperature
And 40min is stirred, prepare uniform dissolution phase；Step (3) is by weighed polyimide particle in 75 DEG C of addition above-mentioned steps (2)
In obtained uniform dissolution phase, stirring 10min dispersion makes it form swelling phase with combination process modifying agent.It is cooled to room temperature most
The prepreg bismaleimide resin matrix of " dissolution-swelling binary phase " coordination plasticizing is obtained eventually.
Resin-cast body fracture toughness KICFor 2.2J/m2；Heat is made in bismaleimide resin matrix and T300 unidirectional carbon fiber dipping
Molten prepreg, the sweat connecting material gel content are 35%, have good being coated with property and viscosity (matrix resin viscosity at ambient temperature 35,
000Pas, the MV minium viscosity in temperature-rise period are 8Pas), the post-impact compression that composite material is tested after solidification is
260MPa。
In each embodiment, the viscosity (surveying from room temperature, the viscosity rheological behavior variation in temperature-rise period) of resin system is adopted
It is tested with the 301 rheological analysis instrument of Physica MCR of Anton Paar company, 1 DEG C/min of heating rate, test scope
It is 25 DEG C -180 DEG C.The mechanical property of resin and composite material is tested by the universal testing machine of U.S. Instron company
It obtains, resin-cast body fracture toughness KICTest is completed according to ASTM D 5045-99, compressive strength after composite impact
The shock resistance lesion capability of (Compression After Impact) to characterize composite material, impact energy 6.67J/
Mm, test are completed according to GB/T21239-2007.
The above, a specific embodiment only of the invention, but scope of protection of the present invention is not limited thereto, appoints
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, all by what those familiar with the art
It is covered by the protection scope of the present invention.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (13)
1. a kind of bimaleimide resin base body, which is characterized in that its raw material includes following components:
Bismaleimide resin monomer, combination process modifying agent, thermoplastic resin and thermoplastic polyimide micro-size particles, it is described compound
Process modification agent is made of diallyl bisphenol and liquid epoxies, and the thermoplastic resin is dissolved in the combination process
In modifying agent, the thermoplastic polyimide micro-size particles is swollen in the combination process modifying agent.
2. bimaleimide resin base body according to claim 1, which is characterized in that the bismaleimide resin monomer is answered
The mass ratio for closing process modification agent, thermoplastic resin and thermoplastic polyimide micro-size particles is 100:60-90:5-15:10-
45。
3. bimaleimide resin base body according to claim 1, which is characterized in that the diallyl bisphenol with
The mass ratio of epoxy resin is 75:5-15.
4. bimaleimide resin base body according to claim 1, which is characterized in that the bismaleimide resin monomer is two
Two amine type span monomer of phenylmethane, toluenediamine type span monomer, m-phenylene diamine (MPD) type span monomer or diphenyldiamine type span
One of monomer or more than one combinations.
5. bimaleimide resin base body according to claim 4, which is characterized in that the bismaleimide resin monomer is two
Two amine type monomer of phenylmethane and toluenediamine type span monomer are mixed according to mass ratio for 50:30-60 ratio.
6. bimaleimide resin base body according to claim 1, which is characterized in that the thermoplastic resin is poly- virtue
One of ether sulfone, poly(aryl ether ketone) or polyphenylene oxide or more than one combinations.
7. bimaleimide resin base body according to claim 1, which is characterized in that the thermoplastic polyimide is micro-
The average grain diameter of meter level particle is 5-40 μm.
8. bimaleimide resin base body according to claim 1, which is characterized in that the liquid epoxies is double
One of phenol A type epoxy resin, bisphenol f type epoxy resin, bisphenol-A epoxy resin or more than one combinations.
9. a kind of preparation method of bimaleimide resin base body, which comprises the following steps:
(1) any one of -8 raw material proportionings provided weigh raw material according to claim 1:
(2) by weighed bismaleimide resin monomer and combination process modifying agent mixing pre-polymerization, weighed thermoplastic resin is added, mixes
Obtain dissolution phase；
(3) weighed thermoplastic polyimide micro-size particles is added in the dissolution phase, is mixed, cooling obtains span
Imide resin matrix.
10. the preparation method of bimaleimide resin base body according to claim 9, which is characterized in that in step (2)
In 120-130 DEG C of heat preservation pre-polymerization 20-40min after weighed bismaleimide resin monomer is mixed with combination process modifying agent, it is cooled to
Weighed thermoplastic resin stirring 20-60min is added after 80-120 DEG C, is mixed to get dissolution phase.
11. the preparation method of bimaleimide resin base body according to claim 10, which is characterized in that step (3)
The middle temperature by the dissolution phase maintains 60-90 DEG C, and weighed thermoplastic polyimide micro-size particles stirring 10- is added
30min is mixed to form swelling phase.
12. application of the described in any item bimaleimide resin base bodies of claim 1-11 in sweat connecting material.
13. application according to claim 12, which is characterized in that the reinforcing fiber of the prepreg is carbon fiber, contains glue
Amount is 30%-50%.
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| CN111574953A (en) * | 2020-04-30 | 2020-08-25 | 航天材料及工艺研究所 | High-temperature-resistant honeycomb core strip glue, and preparation method and application thereof |
| CN111978727A (en) * | 2020-08-19 | 2020-11-24 | 航天材料及工艺研究所 | High-strength high-modulus hot-melt bismaleimide resin composition, preparation method thereof, prepreg and composite material |
| CN112029473A (en) * | 2020-07-23 | 2020-12-04 | 航天材料及工艺研究所 | High-temperature-resistant thin-wall glass cloth honeycomb core strip glue and preparation method and application thereof |
| CN114656787A (en) * | 2020-12-23 | 2022-06-24 | 中国石油化工股份有限公司 | Wear-resistant high-hardness anticorrosive composition and application thereof |
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| CN111574953A (en) * | 2020-04-30 | 2020-08-25 | 航天材料及工艺研究所 | High-temperature-resistant honeycomb core strip glue, and preparation method and application thereof |
| CN112029473A (en) * | 2020-07-23 | 2020-12-04 | 航天材料及工艺研究所 | High-temperature-resistant thin-wall glass cloth honeycomb core strip glue and preparation method and application thereof |
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| CN114656787A (en) * | 2020-12-23 | 2022-06-24 | 中国石油化工股份有限公司 | Wear-resistant high-hardness anticorrosive composition and application thereof |
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