Highly wear-resistant bio-based polyamide composite material and preparation method thereof

The invention provides a highly wear-resistant bio-based polyamide composite material and a preparation method thereof. The bio-based polyamide composite material contains polyamide resin and a wear-resisting agent. Production raw materials of the polyamide resin comprise pentanediamine and diacid. A weight ratio of the polyamide resin to the wear-resisting agent is 100: 0.5-25. The preparation method comprises the following steps: at least mixing the polyamide resin and amino polysiloxane at room temperature; and successively carrying out extrusion granulation at 220 to 300 DEG C, cooling and drying so as to obtain the highly wear-resistant bio-based polyamide composite material. The polyamide composite material provided by the invention has good mechanical properties and wear resistance; the wear-resisting agent amino polysiloxane does not influence the color of the polyamide composite material and poses no restriction to application occasions of the polyamide composite material; and the the preparation method provided by the invention has the advantages of easiness, low cost and accordance with production requirements of industrialization.