High temperature resistant composite matrix resin and preparation method thereof

A composite material and matrix resin technology, which is applied in the field of polymer resin materials and its preparation, can solve problems that have not yet been published in literature or patent reports.

Inactive Publication Date: 2010-01-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The high-temperature-resistant composite material matrix resin and its preparation meth...

Method used

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  • High temperature resistant composite matrix resin and preparation method thereof
  • High temperature resistant composite matrix resin and preparation method thereof
  • High temperature resistant composite matrix resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Put 32.2 grams (0.1 moles) of 1,4-bis(2,4-diaminophenoxy)benzene and 2590 milliliters of N-methyl-2-pyrrolidone organic solvent into the reaction kettle, and stir and dissolve completely at room temperature , add 19.6 grams (0.2 moles) of maleic anhydride solid powder, after stirring and reacting at room temperature for 1-2 hours, add 51.8 grams (1.0 moles) of 2,2-bis[4-(4-aminophenoxy)phenyl] Hexafluoropropane aromatic dibasic primary amine, stirring at room temperature, after completely dissolving, add 156.0 grams (0.3 moles) of 2,2-bis[4-(3,4-dicarboxyphenoxy)phenyl]propanedianhydride and 257.6 g (0.8 moles) of 3,3',4,4'-tetracarboxybenzophenone dianhydride, stirred and reacted at room temperature for 5-8 hours to obtain a homogeneous transparent viscous resin solution.

[0076] Add 3.3 moles of acetic anhydride dehydrating agent and 0.33 moles of pyridine catalyst, stir and react at room temperature for 2-4 hours, heat up to 70°C-100°C, stir at high speed for 4-6 ho...

Embodiment 2

[0082] Mix maleimide-based polyimide powder MPI-1, 3,3′-diallyl bisphenol A compound and 4,4′-bismaleimide in a weight ratio of 1:2:8 Put the base diphenylmethane resin powder into the reaction kettle, heat up to 100°C-160°C, carry out the melt polymerization reaction for 3-7 hours, pour it into the cooling tank while it is hot, cool and solidify, and pulverize to obtain solid resin powder, denoted as R -11.

[0083] Add the R-11 solid resin powder into the dissolution kettle, add dichloromethane organic solvent (the organic solvent accounts for 45%-65% by mass of the whole system), stir and dissolve, and obtain a homogeneous and transparent high-temperature-resistant composite material matrix resin solution , Recorded as R-11S, the solid content is 35%-55%.

[0084] Put a small amount of R-11 solid resin powder into an aluminum foil box, put it in an oven, and carry out curing reaction. The curing process is as follows: heating from room temperature to 140°C, and holding for...

Embodiment 3

[0087] Put 32.2 grams (0.1 moles) of 1,4-bis(2,4-diaminophenoxy)benzene, 1000 milliliters of N,N-dimethylacetamide and 540 milliliters of N-methyl-2-pyrrolidone organic solvent Put it into the reaction kettle, at room temperature, after stirring and dissolving completely, add 19.6 grams (0.2 moles) of maleic anhydride solid powder, stir and react at room temperature for 1-2 hours, add 41.0 grams (0.1 moles) of 2,2-bis[4 -(4-aminophenoxy)phenyl]propane aromatic dibasic primary amine, stirring at room temperature, after completely dissolving, add 62.0 g (0.2 moles) of 3,3',4,4'-tetracarboxydiphenyl ether The dianhydride was stirred and reacted at room temperature for 5-8 hours to obtain a homogeneous transparent viscous resin solution.

[0088] Add 2.0 moles of acetic anhydride dehydrating agent and 0.1 moles of triethylamine catalyst, stir and react at room temperature for 2-4 hours, heat up to 70°C-100°C, stir at high speed for 4-6 hours, add 1540 ml of methanol precipitation ...

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Abstract

The invention relates to a high temperature resistant composite matrix resin and a preparation method thereof. The high temperature resistant composite matrix resin comprises the following components: maleimide-based polyimide powder, diallyl compounds and bismaleimide resin powder. The preparation method of the high temperature resistant composite matrix resin comprises the following steps: mixing 1,4-bis(2,4-diaminophenoxy) benzene with strong polar aprotic organic solvent and adding raw materials such as maleic anhydride, and the like to prepare a resin solution; then adding a dehydrant, a catalyst and a precipitation agent and stirring the mixture to carry out reaction to separate solid powder; and placing the maleimide-based polyimide powder, the diallyl compounds and the bismaleimide resin powder into a reaction kettle to carry out melt polymerization reaction and dissolving the mixture in the organic solvent. The high temperature resistant composite matrix resin can be applied to glass-fiber reinforced composite materials and high-performance fiber-reinforced advanced composite materials such as carbon fiber, aramid fiber, and the like, and has simple process, low cost and no environment pollution, and can be prepared in general equipment, thereby being suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of polymer resin material and its preparation, in particular relates to a high temperature resistant composite material matrix resin and its preparation method. Background technique [0002] The application of composite materials is considered to be an important solution to reduce the weight of aircraft, rockets, missiles and other aircraft, so it is widely used in the field of aerospace. With the increase of flight speed, higher requirements are placed on the comprehensive performance of composite materials, especially high temperature resistance. [0003] Fiber-reinforced resin-based composites have the advantages of high specific strength, low hygroscopicity, good dimensional stability, excellent dielectric properties, high microwave transmittance, and strong product structure design. The high temperature resistance of composite materials mainly depends on the matrix resin, therefore, the development of high tempe...

Claims

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Application Information

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IPC IPC(8): C08F283/04C08L51/08C08G73/12
Inventor 虞鑫海
Owner DONGHUA UNIV
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