FIBER COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF

The present invention relates to the technical field of composite materials, and in particular to a fiber composite material and a preparation method thereof. The preparation method comprises: A) uniformly dispersing nanoparticles in a solvent to obtain a nanoparticle dispersion; B) uniformly spray-...

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Bibliographische Detailangaben
Hauptverfasser:	OU, Yunfu, MAO, Dongsheng, ZHAO, Hongchen, WU, Longqiang, LIU, Kun, WENG, Yiting, FU, Anran
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The present invention relates to the technical field of composite materials, and in particular to a fiber composite material and a preparation method thereof. The preparation method comprises: A) uniformly dispersing nanoparticles in a solvent to obtain a nanoparticle dispersion; B) uniformly spray-coating the nanoparticle dispersion on a chopped fiber nonwoven fabric, and drying the fabric to obtain a nano-modified chopped fiber nonwoven fabric; C) intercalating the nano-modified chopped fiber nonwoven fabric between fiber preforms, and subjecting the obtained material and a resin matrix to composite molding by a molding process to obtain a fiber composite material. In the present invention, firstly nanoparticles are uniformly dispersed in a solvent to obtain a nanoparticle dispersion; secondly, the chopped fiber and the nanoparticles cooperate to construct a multi-scale interlaminar toughening phase, which significantly improves the interlaminar fracture toughness of the fiber composite material.