DE3803075A1 - Process for the preparation of prepregs - Google Patents
Process for the preparation of prepregsInfo
- Publication number
- DE3803075A1 DE3803075A1 DE3803075A DE3803075A DE3803075A1 DE 3803075 A1 DE3803075 A1 DE 3803075A1 DE 3803075 A DE3803075 A DE 3803075A DE 3803075 A DE3803075 A DE 3803075A DE 3803075 A1 DE3803075 A1 DE 3803075A1
- Authority
- DE
- Germany
- Prior art keywords
- bismaleimide
- fillers
- molding compositions
- comonomers
- fibers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000002360 preparation method Methods 0.000 title claims abstract 3
- 229920003192 poly(bis maleimide) Polymers 0.000 claims abstract description 24
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000000465 moulding Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 8
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical class NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000000835 fiber Substances 0.000 claims description 11
- 239000012783 reinforcing fiber Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000012763 reinforcing filler Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- 229920001187 thermosetting polymer Polymers 0.000 claims description 3
- 229910052582 BN Inorganic materials 0.000 claims description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004760 aramid Substances 0.000 claims description 2
- 229920003235 aromatic polyamide Polymers 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims 1
- 239000004917 carbon fiber Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 4
- 150000004985 diamines Chemical class 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000000155 melt Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- CWLKGDAVCFYWJK-UHFFFAOYSA-N 3-aminophenol Chemical compound NC1=CC=CC(O)=C1 CWLKGDAVCFYWJK-UHFFFAOYSA-N 0.000 description 2
- YBRVSVVVWCFQMG-UHFFFAOYSA-N 4,4'-diaminodiphenylmethane Chemical compound C1=CC(N)=CC=C1CC1=CC=C(N)C=C1 YBRVSVVVWCFQMG-UHFFFAOYSA-N 0.000 description 2
- PLIKAWJENQZMHA-UHFFFAOYSA-N 4-aminophenol Chemical compound NC1=CC=C(O)C=C1 PLIKAWJENQZMHA-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 1
- FJKKJQRXSPFNPM-UHFFFAOYSA-N 1-[3-(2,5-dioxopyrrol-1-yl)-4-methylphenyl]pyrrole-2,5-dione Chemical compound CC1=CC=C(N2C(C=CC2=O)=O)C=C1N1C(=O)C=CC1=O FJKKJQRXSPFNPM-UHFFFAOYSA-N 0.000 description 1
- RNSJLHIBGRARKK-UHFFFAOYSA-N 1-[3-[3-(2,5-dioxopyrrol-1-yl)phenyl]sulfonylphenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C1=CC=CC(S(=O)(=O)C=2C=C(C=CC=2)N2C(C=CC2=O)=O)=C1 RNSJLHIBGRARKK-UHFFFAOYSA-N 0.000 description 1
- XQCDLHVXAXBMGW-UHFFFAOYSA-N 1-[6-(2,5-dioxopyrrol-1-yl)-3,5,5-trimethylhexyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1CC(C)(C)CC(C)CCN1C(=O)C=CC1=O XQCDLHVXAXBMGW-UHFFFAOYSA-N 0.000 description 1
- VLWAYLQTCHCOSC-UHFFFAOYSA-N 1-[6-(2,5-dioxopyrrol-1-yl)-6-methylcyclohexa-1,3-dien-1-yl]pyrrole-2,5-dione Chemical compound C1(C=CC(N1C1(CC=CC=C1N1C(C=CC1=O)=O)C)=O)=O VLWAYLQTCHCOSC-UHFFFAOYSA-N 0.000 description 1
- PYVHLZLQVWXBDZ-UHFFFAOYSA-N 1-[6-(2,5-dioxopyrrol-1-yl)hexyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1CCCCCCN1C(=O)C=CC1=O PYVHLZLQVWXBDZ-UHFFFAOYSA-N 0.000 description 1
- SCZZNWQQCGSWSZ-UHFFFAOYSA-N 1-prop-2-enoxy-4-[2-(4-prop-2-enoxyphenyl)propan-2-yl]benzene Chemical compound C=1C=C(OCC=C)C=CC=1C(C)(C)C1=CC=C(OCC=C)C=C1 SCZZNWQQCGSWSZ-UHFFFAOYSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 description 1
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 1
- MQJKPEGWNLWLTK-UHFFFAOYSA-N Dapsone Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=C1 MQJKPEGWNLWLTK-UHFFFAOYSA-N 0.000 description 1
- 239000004641 Diallyl-phthalate Substances 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 150000004984 aromatic diamines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- QUDWYFHPNIMBFC-UHFFFAOYSA-N bis(prop-2-enyl) benzene-1,2-dicarboxylate Chemical compound C=CCOC(=O)C1=CC=CC=C1C(=O)OCC=C QUDWYFHPNIMBFC-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- -1 diallyl benzene Chemical compound 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical group 0.000 description 1
- 150000008379 phenol ethers Chemical class 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 150000003003 phosphines Chemical group 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/246—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using polymer based synthetic fibres
-
- 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
- C08G73/121—Preparatory processes from unsaturated precursors and polyamines
-
- 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
- C08G85/00—General processes for preparing compounds provided for in this subclass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
- C08J5/243—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using carbon fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
- C08J5/241—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres
- C08J5/244—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs using inorganic fibres using glass fibres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von hitzehärtbaren Formmasse auf Basis von Bismaleinimidharzen, die ein Präpolymer aus Bismaleinimid und Comonomeren einerseits und Verstärkungsfasern und/oder Füllstoffen andererseits enthalten und bei erhöhter Temperatur zu einem flächigen Material verpreßt werden können.The invention relates to a method for producing thermosetting Molding compound based on bismaleimide resins, which is a prepolymer Bismaleimide and comonomers on the one hand and reinforcing fibers and / or Fillers on the other hand contain and at elevated temperature to one flat material can be pressed.
Bismaleinimidharze sind präpolymere Umsetzungsprodukte von Bismaleinimiden mit Comonomeren, z. B. aromatischen Diaminen (siehe z. B. DE-C 21 31 735). Diese Präpolymere sind schmelzbar und in organischen Lösungsmitteln löslich; bei erhöhter Temperatur können sie zu vernetzten Produkten ausgehärtet werden, die wegen ihrer hervorragenden mechanischen und thermischen Eigenschaften in der Flugzeug- und Raumfahrtindustrie Eingang gefunden haben. Eine Verbesserung der Festigkeit und Steifigkeit kann durch Einbau von Verstärkungsfasern erreicht werden. Zur Herstellung von Hochleistungsverbundwerkstoffen werden faserverstärkte Reaktionsharze üblicherweise in Form von flächigen Prepregs eingesetzt, die beliebig verformt und dann gehärtet werden können.Bismaleimide resins are prepolymeric reaction products of bismaleimides with comonomers, e.g. B. aromatic diamines (see, for example, DE-C 21 31 735). These prepolymers are meltable and in organic solvents soluble; at elevated temperatures, they can become cross-linked products be cured because of their excellent mechanical and thermal properties in the aerospace industry entrance have found. Can improve strength and stiffness can be achieved by installing reinforcing fibers. For production of High-performance composite materials become fiber-reinforced reactive resins Usually used in the form of flat prepregs, any deformed and then hardened.
Nach dem Stand der Technik werden Prepregs auf Basis von faserverstärkten Bismaleinimidharzen durch Imprägnieren der Fasern mit einer Schmelze oder einer Lösung des Bismaleinimid-Präpolymeren hergestellt. Das Imprägnieren mit einer Lösung hat den Nachteil, daß anschließend größere Mengen Lösungsmittel verdampft werden müssen; wenn man mit einer Schmelze arbeitet, müssen in mehreren Arbeitsschritten erst das Präpolymere hergestellt, zu Pulver zermahlen, mit den Fasern vermischt und in der Schmelze zum Prepreg verarbeitet werden. Ein direktes Imprägnieren der Fasern mit einer Schmelze der Ausgangsmaterialien Bismaleinimid und Comonomer ist in den meisten Fällen nicht möglich: Das einfachste Bismaleinimid auf Basis von Diaminodiphenylmethan/Maleinsäureanhydrid schmilzt z. B. bei 155°C; um eine ausreichende Benetzung von Fasern mit größeren Mengen an Schmelze zu erreichen, müßten also Temperaturen von 170-180°C angewandt werden. Bei so hohen Temperaturen setzt aber bereits die Vernetzung ein.According to the prior art, prepregs are based on fiber-reinforced Bismaleimide resins by impregnating the fibers with a melt or a solution of the bismaleimide prepolymer. The impregnation with a solution has the disadvantage that larger amounts subsequently Solvents must be evaporated; if you're using a melt the prepolymer has to be processed in several steps manufactured, ground into powder, mixed with the fibers and in the Melt to be processed into prepreg. A direct impregnation of the Fibers with a melt of the starting materials bismaleimide and In most cases, comonomer is not possible: the simplest Bismaleinimide based on diaminodiphenylmethane / maleic anhydride melts e.g. B. at 155 ° C; to ensure adequate wetting of fibers To reach larger amounts of melt, temperatures of 170-180 ° C can be applied. At such high temperatures, however, is already set the networking one.
Der Erfindung lag also die Aufgabe zugrunde, ein einfaches Verfahren zur Herstellung von Prepregs auf Basis von Bismaleinimidharzen zu entwickeln.The invention was therefore based on the object of a simple method for To develop production of prepregs based on bismaleimide resins.
Diese Aufgabe wird dadurch gelöst, daß man Bismaleinimid und Comonomere in Gegenwart von Verstärkungsfasern und/oder Füllstoffen zu dem Präpolymeren umsetzt. Aus der dabei erhaltenen Formmasse kann dann durch Verpressen ein hitzehärtbares, flächiges Prepreg hergestellt werden. Bevorzugt werden Bismaleinimid und Comonomere als Feststoffe den Fasern und/oder Füllstoffen zugesetzt und mit diesen bei einer Temperatur zwischen 100 und 180°C, vorzugsweise bei 110 bis 160°C 0,5 bis 30 min, vorzugsweise 2 bis 20 min und insbesondere 3 bis 10 min lang intensiv vermischt. Dabei reagieren die Ausgangsmaterialien in fester Phase miteinander unter Bildung des niedriger schmelzenden Präpolymeren, welches die Fasern bzw. Füllstoffe ausreichend benetzen kann.This object is achieved in that bismaleinimide and comonomers in Presence of reinforcing fibers and / or fillers to the prepolymer implements. The molding compound obtained can then be pressed by pressing thermosetting, flat prepreg can be produced. To be favoured Bismaleinimid and comonomers as solids the fibers and / or Fillers added and with them at a temperature between 100 and 180 ° C, preferably at 110 to 160 ° C 0.5 to 30 min, preferably 2 up to 20 min and in particular 3 to 10 min intensively mixed. Here the starting materials react with each other in the solid phase Formation of the lower melting prepolymer which binds the fibers or Fillers can wet sufficiently.
Geeignete Bismaleinimide sind solche der allgemeinen FormelSuitable bismaleimides are those of the general formula
in der D eine gegebenenfalls substituierte Kohlenstoffdoppelbindung ist
und E ein zweiwertiger Rest mit zumindest zwei Kohlenstoffatomen bedeutet.
Bismaleinimide sind z. B. aus DE-A-20 40 094, DE-A-27 19 903 und
DE-A-32 47 058 bekannt. Neben Bismaleinimiden sind grundsätzlich auch
Polymaleinimide sowie Mischungen verschiedener Bismaleinimide geeignet.
Bevorzugte Bismaleinimide sind
4,4′-Bismaleinimidodiphenylmethan,
4,4′-Bismaleinimidodiphenylether,
3,3′-Bismaleinimidodiphenylsulfon,
2,4-Bismaleinimidotoluol,
1,6-Bismaleinimidotoluol,
1,6-Bismaleinimidohexan und
2,2,4-Trimethyl-1,6-bismaleinimidohexan.
Es können auch bis zu
20 Gew.-% eines Monoimids enthalten sein.in which D is an optionally substituted carbon double bond and E is a divalent radical having at least two carbon atoms. Bismaleinimide are e.g. B. from DE-A-20 40 094, DE-A-27 19 903 and DE-A-32 47 058 known. In addition to bismaleimides, polymaleimides and mixtures of different bismaleimides are also suitable in principle. Preferred bismaleimides are
4,4'-bismaleimidodiphenylmethane,
4,4'-bismaleimidodiphenyl ether,
3,3′-bismaleimidodiphenyl sulfone,
2,4-bismaleimidotoluene,
1,6-bismaleimidotoluene,
1,6-bismaleimidohexane and
2,2,4-trimethyl-1,6-bismaleimidohexane.
It can also contain up to 20% by weight of a monoimide.
Geeignete Comonomere sind Polyamine, Polyphenole, Alkenylphenole oder -phenolether, Aminophenole, Vinyl- und Allylverbindungen. Als Comonomeren geeignete Polyamine sind z. B. aus DE-A 17 70 867 bekannt; bevorzugt sind 4,4′-Diaminodiphenylmethan, 4,4′-Diaminodiphenylsulfon und 3,3′-Diaminodiphenylsulfon. Unter den verwendbaren Polyphenolen sind Bisphenol A, Bisphenol F oder Novolake zu nennen; weitere sind in DE-A 24 59 925 aufgeführt. Geeignete Alkenylphenole oder -phenolether werden in DE-A 26 27 045 beschrieben, bevorzugt ist o,o-Diallylbisphenol A. Ebenfalls geeignet sind oligomere allyl- oder propenylterminierte Sulfone. Einsetzbare Aminophenole sind z. B. m- oder p-Aminophenol. Unter Vinyl- und Allylverbindungen sind beispielhaft zu nennen: Styrol, Divinylbenzol, Diallylphthalat, Acrylate, Diallylbenzol, Triallylisocyanurat, Triallylcyanurat oder Vinylpyrrolidon. Suitable comonomers are polyamines, polyphenols, alkenylphenols or -phenol ether, aminophenols, vinyl and allyl compounds. As comonomers suitable polyamines are e.g. B. known from DE-A 17 70 867; are preferred 4,4'-diaminodiphenyl methane, 4,4'-diaminodiphenyl sulfone and 3,3'-diaminodiphenyl sulfone. Among the polyphenols that can be used are bisphenol A, To name bisphenol F or novolaks; others are in DE-A 24 59 925 listed. Suitable alkenylphenols or phenol ethers are described in DE-A 26 27 045 is described, o, o-diallylbisphenol A is preferred. Oligomeric allyl- or propenyl-terminated sulfones are also suitable. Usable aminophenols are e.g. B. m- or p-aminophenol. Under vinyl and Examples of allyl compounds are: styrene, divinylbenzene, Diallyl phthalate, acrylates, diallyl benzene, triallyl isocyanurate, Triallyl cyanurate or vinyl pyrrolidone.
Bevorzugt werden auf 100 Gewichtsteile Bismaleinimid 5 bis 100, insbesondere 20 bis 80 Gewichtsteile Comonomere und 5 bis 200, insbesondere 15 bis 150 Gewichtsteile Verstärkungsfasern und/oder Füllstoffe eingesetzt.5 to 100 are preferred per 100 parts by weight of bismaleimide, in particular 20 to 80 parts by weight of comonomers and 5 to 200, in particular 15 to 150 parts by weight of reinforcing fibers and / or Fillers used.
Geeignete Verstärkungsfasern sind solche aus Glas, Kohlenstoff oder aromatischem Polyamid. Ihre Länge kann zwischen 2 und 50 mm, insbesondere zwischen 6 und 24 mm betragen. Geeignete Füllstoffe sind Kreide, Quarzsand, Glimmer, Ton, Aluminiumoxid, Graphit, Titandioxid, Bornitrid oder Metallpulver.Suitable reinforcing fibers are those made of glass, carbon or aromatic polyamide. Their length can be between 2 and 50 mm, in particular be between 6 and 24 mm. Suitable fillers are chalk, Quartz sand, mica, clay, aluminum oxide, graphite, titanium dioxide, boron nitride or metal powder.
Je nach beabsichtigtem Verwendungszweck kann es vorteilhaft sein, der Mischung weitere Komponenten beizufügen. In Frage kommen beispielsweise übliche Epoxidharze oder Cyanatharze, bevorzugt in Mengen von 5 bis 40 Gew.-%, bezogen auf das Bismaleinimid. Weitere Zusätze sind Katalysatoren oder auch Inhibitoren. Geeignete Katalysatoren sind tertiäre Amine, Imidazole, organische Säuren, tertiäre Phosphine oder Peroxide. Als Inhibitoren sind Hydrochinon, Benzochinon oder Phenothiazin zu nennen. Die Menge an eingesetzten Initiatoren bzw. Inhibitoren soll etwa zwischen 0,01-1,5 Gew.-%, bezogen auf Bismaleinimid, liegen.Depending on the intended use, it may be advantageous to Mix additional components. For example, come into question Usual epoxy resins or cyanate resins, preferably in amounts of 5 to 40% by weight, based on the bismaleimide. Other additives are Catalysts or inhibitors. Suitable catalysts are tertiary Amines, imidazoles, organic acids, tertiary phosphines or peroxides. As Inhibitors are hydroquinone, benzoquinone or phenothiazine. The The amount of initiators or inhibitors used should be approximately between 0.01-1.5% by weight, based on bismaleimide.
Die erfindungsgemäßen Harze können darüber hinaus die in der Technologie der härtbaren Kunststoffe üblichen Zusatzstoffe enthalten, wie Gleitmittel, Weichmacher, Pigmente, Farbstoffe, Formtrennmittel, flammhemmende Stoffe.The resins of the invention can also be used in technology contain the usual additives such as curable plastics Lubricants, plasticizers, pigments, dyes, mold release agents, flame retardant fabrics.
Bei einer besonders bevorzugten Ausführungsform wird pulverförmiges Bismaleinimid zunächst zu einer Schüttung der Fasern und/oder Füllstoffe gegeben und durch kurzes Rühren gleichmäßig verteilt. Anschließend wird das Comonomere als Pulver oder in Form von Schuppen zugegeben. Dann werden die Bestandteile unter Temperaturerhöhung intensiv vermischt. Im allgemeinen schmilzt erst das Comonomere und reagiert dann mit dem feinteiligen Bismaleinimid unter Bildung des Präpolymeren, welches bei dem angewandten Temperaturen flüssig bis zähflüssig ist und die Fasern und/oder Füllstoffe benetzt. Das Vermischen sollte abgebrochen werden, wenn das Präpolymere optimal auf den Fasern und/oder Füllstoffen verteilt ist. Das ist nach wenigen Minuten der Fall. Bei zu langem Vermischen bei erhöhter Temperatur kann vorzeitige Vernetzung einsetzen.In a particularly preferred embodiment, powdery Bismaleinimid first to a bed of fibers and / or fillers given and evenly distributed by briefly stirring. Then will the comonomer added as a powder or in the form of flakes. Then be the components are intensively mixed while increasing the temperature. in the in general, the comonomer melts and then reacts with the finely divided bismaleimide to form the prepolymer, which in the applied temperatures is liquid to viscous and the fibers and / or fillers. Mixing should be stopped if the prepolymer is optimally distributed on the fibers and / or fillers is. This is the case after a few minutes. If mixing takes too long, elevated temperature can cause premature crosslinking.
Anschließend wird die erhaltene, homogene Formmasse bei 100 bis 150°C 0,5 bis 30 min lang zu einem flächigen Prepreg beliebiger Dicke verpreßt. Dieses Prepreg kann beliebig verformt werden. Die Formteile können bei Temperaturen oberhalb von 160°C, vorzugsweise zwischen 180 und 280°C zu Hochleistungsverbundwerkstoffe ausgehärtet werden. Diese können als Bauteile in der Luft- und Raumfahrt sowie in der Automobilindustrie und im Maschinenbau Verwendung finden. Es ist grundsätzlich auch möglich, die erfindungsgemäßen Formmassen durch Spritzgießen zu Formteilen zu verarbeiten.The homogeneous molding composition obtained is then 0.5 at 100 to 150 ° C. pressed to a flat prepreg of any thickness for up to 30 minutes. This prepreg can be deformed as desired. The molded parts can Temperatures above 160 ° C, preferably between 180 and 280 ° C can be cured to high-performance composite materials. these can as components in the aerospace and automotive industries and are used in mechanical engineering. In principle, it is also possible the molding compositions according to the invention by injection molding to give molded parts to process.
In einem 1000-ml-Glasgefäß wurden 130 g Glasfaserschüttung (6 cm Faserlänge) in einem Ölbad auf 120°C erhitzt. Dann wurden 82 g N,N′-4,4′-Diphenylmethan-bis-maleinimid in Pulverform dazugegeben. Mit einem Rührwerk wurde die Masse etwa 3 min umgewälzt, dann war das Bismaleinimid - ohne Aufschmelzen - gleichmäßig auf den Glasfasern verteilt. Dann wurden 18,0 g pulverförmiges 4,4′-Diaminodiphenylmethan dazugegeben. Nach weiteren 3 min Mischen war das Bismaleinimid-Monomer mit dem Comonomer verschmolzen, was sich durch eine gleichmäßige Dunkelfärbung anzeigte. Dann wurde das Becherglas aus dem Ölbad genommen und auf Zimmertemperatur abgekühlt.In a 1000 ml glass jar, 130 g of glass fiber bed (6 cm Fiber length) heated to 120 ° C in an oil bath. Then 82 g N, N'-4,4'-diphenylmethane-bis-maleimide added in powder form. With the mass was circulated for about 3 minutes using an agitator, then that was it Bismaleinimid - without melting - evenly on the glass fibers distributed. Then 18.0 g of powdered 4,4'-diaminodiphenylmethane added. After a further 3 minutes of mixing, the bismaleimide monomer was also present fused to the comonomer, which is reflected by an even darkening indicated. Then the beaker was removed from the oil bath and opened Room temperature cooled down.
Zwischen zwei Stahlplatten und in einem Rahmen, mit den Innenabmessungen 16×16 und einer Dicke von 4 mm wurde die Formmasse in einer Presse zunächst zu einem Prepreg verpreßt und diese dann 2 Stunden auf 190°C erhitzt und anschließend im Trockenschrank 12 Stunden bei 240°C getempert. Aus der Platte wurden Prüfkörper geschnitten. Die Biegefestigkeit betrug 240 N/mm², der Biege-E-Modul 1900 N/mm².Between two steel plates and in a frame, with the inside dimensions The molding compound was 16 × 16 and a thickness of 4 mm in a press first pressed into a prepreg and then pressed to 190 ° C for 2 hours heated and then annealed in the drying cabinet at 240 ° C for 12 hours. Test specimens were cut from the plate. The flexural strength was 240 N / mm², the flexural modulus 1900 N / mm².
Claims (8)
- A) ein Präpolymer aus einem Bismaleinimid und Comonomeren, und
- B) Verstärkungsfasern und/oder Füllstoffe,
- A) a prepolymer of a bismaleimide and comonomers, and
- B) reinforcing fibers and / or fillers,
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE3803075A DE3803075A1 (en) | 1988-02-03 | 1988-02-03 | Process for the preparation of prepregs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3803075A DE3803075A1 (en) | 1988-02-03 | 1988-02-03 | Process for the preparation of prepregs |
Publications (1)
Publication Number | Publication Date |
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DE3803075A1 true DE3803075A1 (en) | 1989-08-17 |
Family
ID=6346471
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DE3803075A Withdrawn DE3803075A1 (en) | 1988-02-03 | 1988-02-03 | Process for the preparation of prepregs |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0459472A1 (en) * | 1990-05-30 | 1991-12-04 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Polyimide composite material and process for producing the same |
EP0493749A3 (en) * | 1991-01-03 | 1993-03-17 | Basf Aktiengesellschaft | Bio-maleimide resins |
WO1997027155A1 (en) * | 1996-01-29 | 1997-07-31 | E.I. Du Pont De Nemours And Company | Polyimide composite powder, and method for producing the same |
-
1988
- 1988-02-03 DE DE3803075A patent/DE3803075A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0459472A1 (en) * | 1990-05-30 | 1991-12-04 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Polyimide composite material and process for producing the same |
EP0493749A3 (en) * | 1991-01-03 | 1993-03-17 | Basf Aktiengesellschaft | Bio-maleimide resins |
WO1997027155A1 (en) * | 1996-01-29 | 1997-07-31 | E.I. Du Pont De Nemours And Company | Polyimide composite powder, and method for producing the same |
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