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Graphene functionalized modified lightweight composite materials for vehicles

A technology of composite materials and ene functions, which is applied in the field of graphene functionalized modified lightweight composite materials for vehicles, which can solve the problems of high brittleness of phenolic resin materials, failure to meet the demand for high toughness phenolic resins, and dimensional instability of phenolic resins. , to achieve good dimensional stability and toughness

Active Publication Date: 2022-04-19
广东宇豪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Patent CN101189289B provides a foamable resole phenolic resin molding material and phenolic resin foam, but the brittleness of the obtained phenolic resin material is still relatively high, and the dimensional instability of the phenolic resin cannot be solved well. Problems, failed to meet the market demand for high toughness phenolic resin

Method used

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  • Graphene functionalized modified lightweight composite materials for vehicles
  • Graphene functionalized modified lightweight composite materials for vehicles
  • Graphene functionalized modified lightweight composite materials for vehicles

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Embodiment 1

[0039] A graphene functionalized modified automotive lightweight composite material, the preparation method consists of the following steps: 350 parts by weight phenolic resin, 25 parts maleic anhydride grafted polypropylene, 17 parts modified graphene, 50 parts by weight polyethylene terephthalate, 4 parts by weight of magnesium stearate, 3 parts by weight octyl trimethoxysilane mixed and by hot pressing to obtain the graphene functionalized modified vehicle lightweight composite material under the conditions of 185 ° C, pressure 35MPa, heating time of 2h.

[0040] The preparation method of the modified graphene is: graphene gel, modifier, acetone, aqueous sodium chloride solution with a mass fraction of 12% by mass ratio of 12.5: 15.7: 46.2: 55 and stirred at a speed of 400 r / min at 55 ° C for 1h, and then energized treatment for 5h, followed by centrifugation at 15000r / min for 4 min, take the precipitate at 110 ° C, nitrogen atmosphere heating for 2h to obtain the modified ...

Embodiment 2

[0044] A graphene functionalized modified automotive lightweight composite material, the preparation method consists of the following steps: 350 parts by weight phenolic resin, 25 parts maleic anhydride grafted polypropylene, 17 parts modified graphene, 50 parts by weight polyethylene terephthalate, 4 parts by weight of magnesium stearate, 3 parts by weight octyl trimethoxysilane mixed and by hot pressing to obtain the graphene functionalized modified vehicle lightweight composite material under the conditions of 185 ° C, pressure 35MPa, heating time of 2h.

[0045] The preparation method of the modified graphene is: graphene gel, modifier, acetone, aqueous sodium chloride solution with a mass fraction of 12% by mass ratio of 12.5: 15.7: 46.2: 55 and stirred at a speed of 400 r / min at 55 ° C for 1h, and then energized treatment for 5h, followed by centrifugation at 15000r / min for 4 min, take the precipitate at 110 ° C, nitrogen atmosphere heating for 2h to obtain the modified ...

Embodiment 3

[0049] A graphene functionalized modified automotive lightweight composite material, the preparation method consists of the following steps: 350 parts by weight phenolic resin, 25 parts maleic anhydride grafted polypropylene, 17 parts modified graphene, 50 parts by weight polyethylene terephthalate, 4 parts by weight of magnesium stearate, 3 parts by weight octyl trimethoxysilane mixed and by hot pressing to obtain the graphene functionalized modified vehicle lightweight composite material under the conditions of 185 ° C, pressure 35MPa, heating time of 2h.

[0050] The preparation method of the modified graphene is: graphene gel, modifier, acetone, aqueous sodium chloride solution with a mass fraction of 12% by mass ratio of 12.5: 15.7: 46.2: 55 and stirred at a speed of 400 r / min at 55 ° C for 1h, and then energized treatment for 5h, followed by centrifugation at 15000r / min for 4 min, take the precipitate at 110 ° C, nitrogen atmosphere heating for 2h to obtain the modified ...

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Abstract

The invention discloses a graphene functionalized modified vehicle lightweight composite material, the preparation method of which consists of the following steps: phenolic resin, maleic anhydride grafted polypropylene, modified graphene, polyethylene terephthalate Glycol ester, magnesium stearate, and octyltrimethoxysilane are mixed and hot-pressed to obtain the graphene functionalized modified lightweight composite material for vehicles. The graphene functionalized modified automotive lightweight composite material obtained by the invention has good dimensional stability and toughness.

Description

Technical field [0001] The present invention relates to the technical field of lightweight composite materials, specifically to graphene functionalized modified vehicle lightweight composite materials. Background [0002] In recent decades, with the continuous improvement of emission standards and the increasing pressure of energy conservation and emission reduction, domestic and foreign automobile manufacturers have turned their attention to reducing the weight of the body, and the use of lightweight composite new materials is an effective weight reduction measure, such as a large number of aluminum / magnesium / titanium alloys, carbon fiber composite materials, modified phenolic resins and other high-strength materials are being applied to the design and manufacture of automobile structures. Among them, the application of phenolic resin system composite materials to automotive structures can greatly reduce the weight of the body. Although the current phenolic resin composite ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/06C08L51/06C08L67/02C08K9/04C08K3/04
CPCC08L61/06C08L51/06C08L67/02C08K9/04C08K3/042
Inventor 胡长昕饶君豪
Owner 广东宇豪新材料科技有限公司