CN103992640A - Bismaleimide blending resin toughened and modified by polyarylether with phthalazinone moities and preparation method thereof - Google Patents
Bismaleimide blending resin toughened and modified by polyarylether with phthalazinone moities and preparation method thereof Download PDFInfo
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- CN103992640A CN103992640A CN201410220137.8A CN201410220137A CN103992640A CN 103992640 A CN103992640 A CN 103992640A CN 201410220137 A CN201410220137 A CN 201410220137A CN 103992640 A CN103992640 A CN 103992640A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions 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 C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08L79/085—Unsaturated polyimide precursors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
- C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08G73/12—Unsaturated polyimide precursors
- C08G73/126—Unsaturated polyimide precursors the unsaturated precursors being wholly aromatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention belongs to the field of a high polymer material, and relates to bismaleimide blending resin toughened and modified by polyarylether with phthalazinone moities and a preparation method thereof. The raw material of the blending resin comprises the following components in parts by weight: 100 parts of bismaleimide, 5-85 parts of allyl compound and 1-30 parts of polyarylether resin with the phthalazinone moitie. The preparation method of the bismaleimide blending resin toughened and modified by the polyarylether with the phthalazinone moities comprises the following steps: firstly, preparing a blending resin pre-mixture by adopting a liquid method or a melting method, and secondly, curing and molding the blending resin. The toughened BMI blending resin has good impact toughness, can be used as a resin matrix, and can be applied to preparation of a fiber-reinforced resin matrix composite with temperature resistance and high performance by laminating, mold pressing and resin transfer molding (RTM) technologies.
Description
Technical field
The invention belongs to polymeric material field, be specifically related to a kind of phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin and preparation method thereof.
Background technology
Bimaleimide resin (Bismaleimide is called for short BMI) is the bifunctional compound taking maleimide (MI) as active end group.BMI has excellent thermotolerance, electrical insulating property, radiation hardness, flame retardant resistance, the good feature such as mechanical property and dimensional stability, is widely used in resin matrix, high-temperature insulation material and the tackiness agent etc. of Aeronautics and Astronautics, machinery, electronics, advanced composite material.Bimaleimide resin monomer can be at autohemagglutination under thermocatalysis, and crosslinking reaction occurs, and generates highly cross-linked network.But, after bimaleimide resin solidifies, cross-linking density is high, makes the fragility of material large, ability shock-resistant and stress cracking is poor, cannot meet the toughness required as antinoise structure material and shock resistance, limit its application, therefore needed it to carry out toughening modifying.
The toughening modifying method of at present conventional BMI resin mainly comprises: the modification to BMI resin such as synthesizing new BMI monomer, interpolation diamine, rubber, allylic cpd, thermoplastic resin, thermosetting resin, inorganic nano-particle or carbon fiber.
Result of study shows, by introducing flexible group or adding the modes such as rubber, although can improve the toughness of BMI resin system cured article, can significantly reduce its modulus and thermotolerance.Can under the prerequisite that does not reduce resin resistance toheat and mechanical property, improve the toughness of BMI resin with the next toughness reinforcing BMI of High performance plastic resin.Conventional thermoplastic resin has polyester (PET), polyethersulfone (PES), polyetherketone (PEK), polyimide (PI), polyetherketone (PEK) etc.In the time of Toughened With High Performance Thermoplastics modified BMI resin, conventionally add allylic cpd to carry out co-curing reaction simultaneously, allylic cpd is toughner and solidifying agent, be conducive to improve the solvability of thermoplastic resin in system, reduce costs, improve operability and the manufacturability of BMI resin, improve the mechanical property of co-mixing system.But, on the one hand, the problem that these thermoplastic polymers exist is poorly soluble, the melt viscosity of itself and BMI co-mixing system is large, causes the processibility variation of BMI resin alloy system, make its cured product surface have the problem of skinning simultaneously, affect the mechanical property of product.On the other hand, conventional allylic cpd is mainly O at present, O '-diallyl bisphenol (DABPA), and other allylic cpd research is seldom.Therefore, find new resin and method, realize when BMI resin is carried out to toughening modifying, can keep or improve its thermotolerance, can keep again good processibility just to there is very important actual application value.
A class High performance plastic resin of Dalian University of Technology's independent research containing phthalazine biphenyl structure polyarylether thermoplastic resin, its second-order transition temperature can regulate and control between 250～370 DEG C, and be dissolvable in water some aprotic polar solvent, not only can adopt the melt-processed mode of traditional thermoplastic resin, also can adopt solution mode to process, excellent combination property, especially mechanical behavior under high temperature is outstanding, is toughner and the desirable body material of preparation high-performance advanced composite material of thermosetting resin.Patent of invention related to the present invention has: patent of invention ZL201110206012.6 discloses a kind of maleimide end-sealed containing phthalazine biphenyl structure poly (arylene ether nitrile) and preparation method thereof; Patent of invention US5138000 discloses BMI resin and diallyl '-biphenyl diphenol blending resin and preparation method thereof.Above-mentioned patent does not all relate to the toughening modifying to BMI resin containing phthalazine biphenyl structure polyarylether and allyl group '-biphenyl diphenol.Han Yongjin (structure and the performance of bismaleimides/Phthalazinone polyaryletherketone blend, Dalian University of Technology, master's Diplomarbeit, 2009) disclose amino-terminated containing phthalazine biphenyl structure polyaryletherketone (PPEK-DA)/DABPA/BDM blending resin system; Jiang Hailong (structure and the performance of the polyethersulfone blended body of bimaleimide resin/functionalized Phthalazinone, Dalian University of Technology, master's Diplomarbeit, 2010) disclose amino-terminated containing phthalazine biphenyl structure polyether sulphone (PPES-DA)/DABPA/BDM blending resin system; Shangguan Huan of a specified duration (research of Phthalazinone polyarylether modified bismaleimide resin, Dalian University of Technology, master's Diplomarbeit, 2011) disclose containing phthalazine biphenyl structure poly (arylene ether nitrile) ketone (PPENK), amino-terminated copolymerization aryl ether ketone (PPBEK-DA) the toughness reinforcing blending and modifying of DABPA/BDM, but in above-mentioned three sections of documents, in disclosed BMI co-mixing system, adopt be all DABPA as solidifying agent, all do not relate to diallyl '-biphenyl diphenol (DABP).Compared with open source literature, this patent uses containing phthalazine biphenyl structure polyarylether thermoplastic resin and DABP simultaneously BMI resin is carried out to toughening modifying, on the one hand, can improve the impelling strength of BMI resin containing phthalazine biphenyl structure polyarylether thermoplastic resin, and keep excellent thermotolerance; On the other hand, compared with DABPA, DABP is having more advantage aspect processing fluidity, thermotolerance and the impelling strength of raising co-mixing system.
In sum, foregoing invention and document all do not relate to containing phthalazine biphenyl structure polyarylether Toughened With High Performance Thermoplastics modification DABP/BMI blending resin and preparation method thereof.About not seeing relevant patented technology report containing phthalazine biphenyl structure polyarylether Toughened With High Performance Thermoplastics modification DABP/BMI blending resin and preparation method thereof, also at home and abroad in public publication, do not occur.
Summary of the invention
The technical problem to be solved in the present invention is containing phthalazine biphenyl structure polyarylether high-temperature resistant thermoplastic resin, diallyl '-biphenyl diphenol (DABP), BMI resin is carried out to toughening modifying, improves the impelling strength of the processing fluidity of BMI blending resin, the surface skining phenomenon that reduces cured article, raising blending resin cured article.A kind of preparation method of phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin of easy, easy handling is provided meanwhile.
A kind of phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin, the raw material of this blending resin comprises following component, mark is counted by weight:
Bismaleimides: 100 parts;
Allylic cpd: 5～85 parts;
Phthalazine biphenyl structure polyarylether resin: 1～30 part.
Described bismaleimides is:
in one or more mixing.
In described allylic cpd, must contain diallyl '-biphenyl diphenol, the structural formula of diallyl '-biphenyl diphenol is:
Or contain other diallyl compound simultaneously, as follows:
one or more mixing.
The structural formula of described phthalazine biphenyl structure polyarylether resin is:
in one or more mixing;
Wherein, R
1, R
2, R
3, R
4be hydrogen, halogenic substituent, phenyl, phenoxy group, alkyl or alkoxyl group, alkyl or alkoxyl group all contain at least 1 carbon atom, R
1, R
2, R
3and R
4structure identical or different; M>=3, n>=0;
Ar
1, Ar
3for the agent structure of two halogen monomers, be following in one or more mixing:
R is hydrogen, methoxyl group, phenyl, alkyl or alkoxyl group, and wherein alkyl or alkoxyl group all contain at least 1 carbon atom;
Ar
2for the agent structure of biphenol monomer, be following in one or more mixing:
1,2,1,3 or Isosorbide-5-Nitrae position;
2,2 ' or 4,4 ';
isosorbide-5-Nitrae position, 1,5,1,6,2,6 or 2,7;
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
The preparation method who the present invention proposes a kind of phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin, step is as follows:
(1) adopt solution method or scorification to prepare blending resin pre-composition
(a) solution method
1～30 part of phthalazine biphenyl structure polyarylether resin is dissolved in 65～100 parts of organic solvents, is mixed with polymers soln; 5～85 parts of allylic cpds are heated to melting, add above-mentioned polymers soln, stir, temperature is 80～130 DEG C; Under vacuum condition, remove organic solvent; Add again 100 parts of bismaleimidess, under 100～140 DEG C of conditions, be uniformly mixed 20～40 minutes, obtain blending resin pre-composition;
(b) scorification
5～85 parts of allylic cpds are heated to melting, temperature is raised to 100～150 DEG C, add 1～30 part of phthalazine biphenyl structure polyarylether resin, stir until it is dissolved in allylic cpd completely, temperature is adjusted to 120～140 DEG C again, add 100 parts of bismaleimidess, continue to stir 20～40 minutes, obtain blending resin pre-composition;
(2) curing molding of blending resin
Blending resin pre-composition prepared by above-mentioned solution method or scorification is under the condition of 90～130 DEG C of vacuum, carry out vacuum defoamation, until emerge without bubble, then it is solidified 0.5～12 hour at 100～180 DEG C of temperature, after solidifying, be cooled to room temperature, obtain phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin.
Described organic solvent is one or more mixing in dimethyl sulfoxide (DMSO), DMF, N,N-dimethylacetamide, N-Methyl pyrrolidone, chloroform.
Effect of the present invention and benefit: adopt containing phthalazine biphenyl structure polyarylether high-temperature resistant thermoplastic resin and diallyl '-biphenyl diphenol BMI blending resin toughening modifying, by regulating the content proportioning of thermoplastic resin, diallyl '-biphenyl diphenol and BMI in blending resin, thereby reach the object of the performance of regulation and control BMI blending resin system, prepared a kind of BMI blending resin that has high tenacity, excellent heat resistance and good workability concurrently.Can find out from the performance comparison (as shown in table 1) of embodiments of the invention and blending resin, this blending resin has higher shock strength and thermotolerance than DABP/BMI system, also has higher shock strength than phthalazine biphenyl structure polyarylether/DABPA/BMI co-mixing system simultaneously.The phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin the present invention relates to has good forming process, can be used as resin matrix, prepare high temperature resistant, high-performance fiber enhancing polymer matrix composites by lamination, mold pressing, RTM technique.
The performance comparison of table 1 blending resin system
Annotation:
*notched Izod impact strength
Embodiment
Below by embodiment, the present invention is specifically described; be necessary to be pointed out that at this present embodiment is only for further illustrating of the present invention; but can not be interpreted as the restriction to this patent protection domain, the person skilled in the art in this field can make some nonessential improvement and adjustment according to the content of the invention described above.
Embodiment 1
Amino-terminated containing phthalazine biphenyl structure poly (arylene ether nitrile) sulphone resin/DABP/BDM blending resin
First take 65gDABP, add in reaction vessel and stir, temperature is risen to approximately 80 DEG C gradually, until DABP melting, in the time that temperature rises to approximately 125 DEG C, add amino-terminated containing phthalazine biphenyl structure polyaryl ether-nitrile-sulfone (PPENS-DA) 10g, stirring treats that it is dissolved in DABP completely, then 100g bismaleimides ditane (BDM) is joined in system and continues stir about 30 minutes, obtain uniformly, there is the liquid of certain viscosity, this liquid is poured in advance preheated mould, carry out vacuum defoamation approximately 1 lab scale in 110 DEG C, to emerging without bubble, the mould that has taken off bubble is moved in temperature control oven, be cured by following program: 130 DEG C solidify 0.5 hour, 150 DEG C solidify 2 hours, 190 DEG C solidify 2 hours, 230 DEG C solidify 4 hours, it naturally cools to room temperature to solidify end relief.The notched Izod impact strength of blending resin is 4.98KJ/m2,269 DEG C of second-order transition temperatures.
Embodiment 2
Containing phthalazine biphenyl structure polyaryl ether sulphone resin/DABP/DABAP/BDM blending resin
Take 15g phthalazine biphenyl structure polyether sulphone (PPES), and be dissolved in the chloroform of 100mL and be configured to polymers soln, taking 60gDABP and 5gDABPA adds in reaction vessel and stirs, temperature is risen to approximately 80 DEG C gradually, until DABP and DABPA melting, in the time that temperature rises to approximately 125 DEG C, add the polymers soln containing 15gPPES, stirring treats that it mixes, then 100g bismaleimides ditane (BDM) is joined in system and continues stir about 40 minutes, obtain uniformly, there is the liquid of certain viscosity, this liquid is poured in advance preheated mould, carry out vacuum defoamation approximately 1 lab scale in 130 DEG C, to emerging without bubble, the mould that has taken off bubble is moved in temperature control oven, be cured by following program: 130 DEG C solidify 1 hour, 160 DEG C solidify 2 hours, 190 DEG C solidify 2 hours, 230 DEG C solidify 4 hours, it naturally cools to room temperature to solidify end relief.The notched Izod impact strength of blending resin is 4.75KJ/m2,253 DEG C of second-order transition temperatures.
Embodiment 3
Containing phthalazine biphenyl structure ketone-grouped resin (PPEK)/DABP/BDM blending resin
First taking 40gDABP and 30gDABPA adds in reaction vessel and stirs, temperature is risen to approximately 80 DEG C gradually, until DABP and DABPA melting, in the time that temperature rises to approximately 125 DEG C, add 15g PPEK, stirring treats that it mixes, then 100g bismaleimides ditane (BDM) is joined and in system, continue stir about 40min, obtain uniformly, there is the liquid of certain viscosity, this liquid is poured in advance preheated mould, carry out vacuum defoamation approximately 1 lab scale in 110 DEG C, to emerging without bubble, the mould that has taken off bubble is moved in temperature control oven, be cured by following program: 130 DEG C solidify 0.5 hour, 150 DEG C solidify 2 hours, 190 DEG C solidify 2 hours, 230 DEG C solidify 4 hours, it naturally cools to room temperature to solidify end relief.The notched Izod impact strength of blending resin is 4.53KJ/m2,247 DEG C of second-order transition temperatures.
Claims (10)
1. a phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin, is characterized in that, the raw material of this blending resin comprises following component, and mark is counted by weight:
Bismaleimides: 100 parts;
Allylic cpd: 5～85 parts;
Phthalazine biphenyl structure polyarylether resin: 1～30 part.
2. phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin according to claim 1, is characterized in that, described bismaleimides is:
in one or more mixing.
3. phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin according to claim 1 and 2, is characterized in that, in described allylic cpd, must contain diallyl '-biphenyl diphenol, the structural formula of diallyl '-biphenyl diphenol is:
Or contain other diallyl compound simultaneously, as follows:
one or more mixing.
4. phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin according to claim 1 and 2, is characterized in that, the structural formula of described phthalazine biphenyl structure polyarylether resin is:
in one or more mixing;
Wherein, R
1, R
2, R
3, R
4be hydrogen, halogenic substituent, phenyl, phenoxy group, alkyl or alkoxyl group, alkyl or alkoxyl group all contain at least 1 carbon atom, R
1, R
2, R
3and R
4structure identical or different;
m≥3，n≥0；
Ar
1, Ar
3for the agent structure of two halogen monomers, be following in one or more mixing:
R is hydrogen, methoxyl group, phenyl, alkyl or alkoxyl group, and wherein alkyl or alkoxyl group all contain at least 1 carbon atom;
Ar
2for the agent structure of biphenol monomer, be following in one or more mixing:
1,2,1,3 or Isosorbide-5-Nitrae position;
2,2 ' or 4,4 ';
isosorbide-5-Nitrae position, 1,5,1,6,2,6 or 2,7;
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
5. phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin according to claim 3, is characterized in that, the structural formula of described phthalazine biphenyl structure polyarylether resin is:
in a kind of or
Several mixing;
Wherein, R
1, R
2, R
3, R
4be hydrogen, halogenic substituent, phenyl, phenoxy group, alkyl or alkoxyl group, alkyl or alkoxyl group all contain at least 1 carbon atom, R
1, R
2, R
3and R
4structure identical or different;
m≥3，n≥0；
Ar
1, Ar
3for the agent structure of two halogen monomers, be following in one or more mixing:
R is hydrogen, methoxyl group, phenyl, alkyl or alkoxyl group, and wherein alkyl or alkoxyl group all contain at least 1 carbon atom;
Ar
2for the agent structure of biphenol monomer be following in one or more mixing:
1,2,1,3 or Isosorbide-5-Nitrae position;
2,2 ' or 4,4 ';
isosorbide-5-Nitrae position, 1,5,1,6,2,6 or 2,7;
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
3,3 ' or 4,4 ';
6. a preparation method for the phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin described in claim 1 or 2 or 5, is characterized in that, step is as follows:
(1) adopt solution method or scorification to prepare blending resin pre-composition
(a) solution method
1～30 part of phthalazine biphenyl structure polyarylether resin is dissolved in 65～100 parts of organic solvents, is mixed with polymers soln; 5～85 parts of allylic cpds are heated to melting, add above-mentioned polymers soln, stir, temperature is 80～130 DEG C; Under vacuum condition, remove organic solvent; Add again 100 parts of bismaleimidess, under 100～140 DEG C of conditions, be uniformly mixed 20～40 minutes, obtain blending resin pre-composition;
(b) scorification
5～85 parts of allylic cpds are heated to melting, temperature is raised to 100～150 DEG C, add 1～30 part of phthalazine biphenyl structure polyarylether resin, stir until it is dissolved in allylic cpd completely, temperature is adjusted to 120～140 DEG C again, add 100 parts of bismaleimidess, continue to stir 20～40 minutes, obtain blending resin pre-composition;
(2) curing molding of blending resin
Blending resin pre-composition prepared by above-mentioned solution method or scorification is under the condition of 90～130 DEG C of vacuum, carry out vacuum defoamation, until emerge without bubble, then it is solidified 0.5～12 hour at 100～180 DEG C of temperature, after solidifying, be cooled to room temperature, obtain phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin.
7. a preparation method for phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin claimed in claim 3, is characterized in that, step is as follows:
(1) adopt solution method or scorification to prepare blending resin pre-composition
(a) solution method
1～30 part of phthalazine biphenyl structure polyarylether resin is dissolved in 65～100 parts of organic solvents, is mixed with polymers soln; 5～85 parts of allylic cpds are heated to melting, add above-mentioned polymers soln, stir, temperature is 80～130 DEG C; Under vacuum condition, remove organic solvent; Add again 100 parts of bismaleimidess, under 100～140 DEG C of conditions, be uniformly mixed 20～40 minutes, obtain blending resin pre-composition;
(b) scorification
5～85 parts of allylic cpds are heated to melting, temperature is raised to 100～150 DEG C, add 1～30 part of phthalazine biphenyl structure polyarylether resin, stir until it is dissolved in allylic cpd completely, temperature is adjusted to 120～140 DEG C again, add 100 parts of bismaleimidess, continue to stir 20～40 minutes, obtain blending resin pre-composition;
(2) curing molding of blending resin
Blending resin pre-composition prepared by above-mentioned solution method or scorification is under the condition of 90～130 DEG C of vacuum, carry out vacuum defoamation, until emerge without bubble, then it is solidified 0.5～12 hour at 100～180 DEG C of temperature, after solidifying, be cooled to room temperature, obtain phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin.
8. a preparation method for phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin claimed in claim 4, is characterized in that, step is as follows:
(1) adopt solution method or scorification to prepare blending resin pre-composition
(a) solution method
1～30 part of phthalazine biphenyl structure polyarylether resin is dissolved in 65～100 parts of organic solvents, is mixed with polymers soln; 5～85 parts of allylic cpds are heated to melting, add above-mentioned polymers soln, stir, temperature is 80～130 DEG C; Under vacuum condition, remove organic solvent; Add again 100 parts of bismaleimidess, under 100～140 DEG C of conditions, be uniformly mixed 20～40 minutes, obtain blending resin pre-composition;
(b) scorification
5～85 parts of allylic cpds are heated to melting, temperature is raised to 100～150 DEG C, add 1～30 part of phthalazine biphenyl structure polyarylether resin, stir until it is dissolved in allylic cpd completely, temperature is adjusted to 120～140 DEG C again, add 100 parts of bismaleimidess, continue to stir 20～40 minutes, obtain blending resin pre-composition;
(2) curing molding of blending resin
Blending resin pre-composition prepared by above-mentioned solution method or scorification is under the condition of 90～130 DEG C of vacuum, carry out vacuum defoamation, until emerge without bubble, then it is solidified 0.5～12 hour at 100～180 DEG C of temperature, after solidifying, be cooled to room temperature, obtain phthalazine biphenyl structure polyarylether toughening modifying bismaleimides blending resin.
9. preparation method according to claim 6, is characterized in that, described organic solvent is one or more mixing in dimethyl sulfoxide (DMSO), DMF, N,N-dimethylacetamide, N-Methyl pyrrolidone, chloroform.
10. according to the preparation method described in claim 7 or 8, it is characterized in that, described organic solvent is one or more mixing in dimethyl sulfoxide (DMSO), DMF, N,N-dimethylacetamide, N-Methyl pyrrolidone, chloroform.
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| CN106280449A (en) * | 2016-08-19 | 2017-01-04 | 大连理工大学 | A kind of high tenacity, low viscous benzimidazole dihydrochloride/diallyl diphenol/BMI blending resin and preparation method thereof |
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