▎ 摘　　要

NOVELTY - Preparing anti-crosslinked waste latex reinforced toughened polylactic acid composite material involves preparing intercalation expandable graphite solution, adding the expandable graphite and stripping agent into water, after stirring, putting into liquid phase circulating high-speed shearing grinding device for cutting and grinding dispersion, obtaining the dispersion of expandable graphite coated by stripping agent, preparing graphene dispersion, putting the dispersion liquid into the microwave reaction kettle, under the ultrasonic oscillation, raising the temperature to 200-260℃, reacting for 2-10 minutes, obtaining graphene dispersion liquid, preparing de-cross-linking latex, putting the waste latex into the dispersion graphene obtained, putting into microwave reaction kettle, raising the temperature to 150-220?℃, reacting for 30 seconds to 20 minutes to obtain crosslinking latex, preparing polylactic acid composite material, drying the de-cross-linking latex obtained. USE - Method for preparing anti-crosslinked waste latex reinforced toughened polylactic acid composite material. ADVANTAGE - The method efficiently and controllably realizes the cross-linking reaction of the waste latex, so as to improve the melt processing performance of waste latex and the strength of the polylactic acid composite material, toughness and conductivity and so on comprehensive performance. The method is environment-friendly synthesis method capable of solving the shortage of the existing solid waste technology in the recycling field, and is capable of efficiently solving crosslinking waste latex. The liquid phase circulating high speed cutting grinding technology can effectively grind the expandable graphite sheet, ensuring the peeling agent uniformly dispersed and coated on the surface of the graphite. DETAILED DESCRIPTION - Preparing anti-crosslinked waste latex reinforced toughened polylactic acid composite material involves preparing intercalation expandable graphite solution, adding the expandable graphite and stripping agent into water, after stirring, putting into liquid phase circulating high-speed shearing grinding device for cutting and grinding dispersion, obtaining the dispersion of expandable graphite coated by stripping agent, preparing graphene dispersion, putting the dispersion liquid into the microwave reaction kettle, under the ultrasonic oscillation, raising the temperature to 200-260℃, reacting for 2-10 minutes, obtaining graphene dispersion liquid, preparing de-cross-linking latex, putting the waste latex into the dispersion graphene obtained, putting into microwave reaction kettle, raising the temperature to 150-220?℃, reacting for 30 seconds to 20 minutes to obtain the crosslinking latex, preparing polylactic acid composite material, drying the de-cross-linking latex obtained, mixing with polylactic acid, putting into a melt blending device for melt blending, obtaining polylactic acid composite material. An INDEPENDENT CLAIM is included for a polylactic acid composite material.