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Ternary system resin and preparation method thereof, and composite material and preparation method thereof

A ternary system and resin technology, applied in the field of polymer physics, polymer material modification, and polymer chemistry, can solve the problems of low mechanical properties and achieve improved mechanical properties, improved mechanical properties, excellent heat resistance and mechanical properties performance effect

Inactive Publication Date: 2018-09-04
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to overcome the technical problem of low mechanical properties of the silicon-containing aryl propargyl ether resin and the composite material prepared in the prior art, and provide a ternary system resin and its preparation Method, composite material and preparation method thereof

Method used

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  • Ternary system resin and preparation method thereof, and composite material and preparation method thereof
  • Ternary system resin and preparation method thereof, and composite material and preparation method thereof
  • Ternary system resin and preparation method thereof, and composite material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0045] In Example 1, Example 2 and Example 3, the cyanate ester raw material was purchased from Yangzhou Tianqi New Material Co., Ltd., bisphenol A type cyanate ester monomer was selected, the product model was CE01MO, and bisphenol E type cyanate was selected Ester monomer, the product model is CE09MO.

[0046] In the data testing part, the structure of the resin is tested by a hydrogen nuclear magnetic resonance instrument. The curing reaction temperature of resin can be tested by differential scanning calorimeter (DSC), and the initial temperature of curing reaction (T i ), and curing reaction peak temperature (T p ), curing reaction end temperature (T f ) and the exothermic enthalpy of the curing reaction (ΔH). The curing process of the resin can be determined by referring to the results of the resin DSC test. The thermal stability of the thermally cured resin can be tested in a nitrogen atmosphere with a thermogravimetric analyzer (TGA), and the 5% thermal weight loss...

Embodiment 2

[0069] Preparation of cyanate ester, P-appe and silicon-containing bisphenol A propargyl ether blend resin and preparation of composite materials

[0070] Bisphenol E type dicyanate (BEDCy), benzoxazine (P-appe) and silicon-containing bisphenol A dipropargyl ether resin (the PSAP-A resin raw material that embodiment 1 obtains) according to mass ratio 15 :15:70 dissolved in tetrahydrofuran solution, stirred for 30 minutes, after mixing evenly, after vacuum rotary evaporation and cooling, the modified ternary system resin can be obtained. Dissolve this resin in acetone and prepare a solution with a mass fraction of 38%. The carbon fiber cloth (T300) is impregnated with the above solution to obtain a prepreg. After the volatile content is less than 1%, the prepreg is laminated and Compressed on a flat press. The pressing process is 210°C / 2h, 250°C / 2h, 300°C / 2h and 330°C / 4h, the molding pressure is 3MPa, and the rubber content of the prepared composite material is about 30%. The...

Embodiment 3

[0072] Preparation of cyanate ester, benzoxazine P-apa and silicon-containing bisphenol A propargyl ether blend resin and preparation of composite materials

[0073] Bisphenol A type dicyanate (BADCy), benzoxazine (P-apa) and silicon-containing bisphenol A dipropargyl ether resin (the PSAP-A raw material that embodiment 1 obtains) according to mass ratio 15: 15:70 was dissolved in tetrahydrofuran solution, stirred for 30 minutes, mixed evenly, and then cooled by rotary evaporation under reduced pressure to obtain the modified ternary system resin. Dissolve this resin in acetone and prepare a solution with a mass fraction of 38%. The carbon fiber cloth (T300) is impregnated with the above solution to obtain a prepreg. After the volatile content is less than 1%, the prepreg is laminated and Compressed on a flat press. The pressing process is 210°C / 2h, 250°C / 2h, 300°C / 2h and 330°C / 4h, the molding pressure is 3MPa, and the rubber content of the prepared composite material is abou...

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Abstract

The invention discloses a ternary system resin and a preparation method thereof, and a composite material and a preparation method thereof. The preparation method of the ternary system resin comprisesthe following steps: dissolving arylsilyl-containing propargyl ether resin into a solution, uniformly mixing with cyanate ester and benzoxazine, and performing reduced pressure rotary evaporateion, thereby obtaining the product. If the sum of the addition amount of the arylsilyl-containing propargyl ether resin, cyanate ester and benzoxazine is 100%, the sum of the mass fraction of the cyanate ester and benzoxazine is 10-50%, and the mass fraction of the arylsilyl-containing propargyl ether resin is 50-90%. The mechanical property of the arylsilyl-containing propargyl ether resin is improvedby mixing the cyanate ester and benzoxazine, so that the modified arylsilyl-containing propargyl ether resin with excellent mechanical property and high heat resistance is provided and is used for preparing a carbon fiber reinforced composite material.

Description

technical field [0001] The invention relates to the technical fields of polymer chemistry, polymer physics and polymer material modification, in particular to a ternary system resin and a preparation method thereof, a composite material and a preparation method thereof. Background technique [0002] The carrier speed of aerospace and transportation is getting faster and faster, and the development of thin and light electronic products requires materials with high heat resistance, light weight and good strength. The development of high-tech polymer materials can meet the needs of aerospace and electronic information for new materials. [0003] In order to overcome the decline of the physical-mechanical properties of composite materials caused by the water absorption (~5%) of epoxy resin and bismaleimide resin in a hot and humid environment, U.S. Patent (US4 885 403, 1989) discloses a Preparation of bisphenol propargyl ethers. The monomer is easy to prepare, has high yield, ...

Claims

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Application Information

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IPC IPC(8): C08L83/16C08L79/04C08L61/34C08G14/06C08G73/06C08J5/24
CPCC08G14/06C08G73/0644C08G73/065C08J5/24C08J2383/16C08J2461/34C08J2479/04
Inventor 袁荞龙黄发荣郑嘉栋
Owner EAST CHINA UNIV OF SCI & TECH
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