A high-strength flexible epoxy resin modified cyanate resin/carbon fiber composite shape memory material and its preparation method

A flexible epoxy resin and cyanate resin technology, which is applied in the field of high-strength flexible epoxy resin modified cyanate resin/carbon fiber composite shape memory materials and its preparation, can solve the problem of poor mechanical properties and slow deformation recovery rate , low deformation density and other issues, to achieve the effect of high strength, smooth surface and excellent mechanical properties

Inactive Publication Date: 2020-07-14
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

[0004] Aiming at the problems that current shape memory polymer materials have poor mechanical properties such as strength and stiffness, and a slow deformation recovery rate, the first purpose of the present invention is to provide a material with large deformation, fast recovery rate, low density, high Flexible epoxy resin modified cyanate resin / carbon fiber composite shape memory material with advantages such as mechanical properties

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  • A high-strength flexible epoxy resin modified cyanate resin/carbon fiber composite shape memory material and its preparation method
  • A high-strength flexible epoxy resin modified cyanate resin/carbon fiber composite shape memory material and its preparation method
  • A high-strength flexible epoxy resin modified cyanate resin/carbon fiber composite shape memory material and its preparation method

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Embodiment 1

[0038] The preparation method of the high-strength flexible epoxy resin modified cyanate ester resin / carbon fiber composite shape memory material is: according to the above mass fractions, weigh 30 g of carboxyl-terminated liquid nitrile rubber, 30 g of Jef-0211 flexible epoxy resin, bisphenol E-type cyanate resin 100g, heated to 100°C and stirred for 2h. Then apply evenly at about 1m 2 On the T300 carbon fiber plain weave fabric, and then cut the carbon fiber plain weave fabric into the specified size according to [0 / 90°] and [+45° / -45°] directions. Then lay them in alignment layer by layer, 20 layers of carbon fiber cloth cut in the [0 / 90°] direction, and 10 layers of carbon fiber cloth cut in the [+45° / -45°] direction. The cyanate ester resin / carbon fiber shape memory composite material plate is obtained by vacuum bagging, vacuum heating and curing. The curing process is 120°C / 4h+150°C / 2h+170°C / 2h.

[0039] The carboxyl group in the carboxyl-terminated liquid nitrile rub...

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Abstract

The invention discloses a high-strength flexible epoxy resin modified cyanate resin / carbon fiber composite shape memory material and a preparation method thereof. According to the composite shape memory material, cyanate resin serves as matrix resin, carboxyl-terminated liquid nitrile rubber and flexible epoxy resin serve as flexibilizers, and carbon fiber materials are reinforced phases and formed by vacuum heating curing. A toughening cyanate resin pouring body is long in pot life and good in fiber overlay and compounded with a carbon fiber by an existing forming process to obtain the flexible epoxy resin modified cyanate resin / carbon fiber composite shape memory material which has flat surfaces, is free from obvious defects and has the advantages of high tensile strength, tensile modulus, shearing strength, bending strength and the like.

Description

technical field [0001] The invention relates to a cyanate ester resin / carbon fiber composite shape memory material, in particular to a shape memory composite material formed by compounding cyanate resin and carbon fiber by carboxyl-terminated liquid nitrile rubber and flexible epoxy resin. The composite shape memory material has the advantages of excellent shape memory performance, high tensile strength, bending strength, shear strength, etc., can be applied to folding structures such as satellite lines and trusses, and belongs to the technical field of aerospace materials. Background technique [0002] With the continuous development and utilization of space resources, larger space devices or structures are required in the research of aerospace devices, and the huge volume of aerospace devices increases the difficulty of transporting them from the earth's surface to the space environment. How to efficiently utilize the carrying space and reduce the carrying volume is an urg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/04C08L63/00C08L13/00C08K7/06
Inventor 李芝华胡建康马立刘洪新
Owner CENT SOUTH UNIV
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