Plastic recycling and application of recycled plastics in packaging field
The research progress on plastic recycling and the application of recycled plastics in the packaging field are reviewed.Rh/Nb2O5 catalyst can be used for the polyolefin hydrogenolysis to obtain liquid oil products and low-carbon hydrocarbon gases.The addition of synthetic additives can improve flame retardancy and anti-aging properties of recycled polyethylene.The impact strength of modified recycled polyethylene is increased which is prepared by adding a premix composed of alkyl triethoxysilane and maleic anhydride.A mixture of diols and aspartic esters is reacted with polyisocyanate monomers and then aminated polyethylene terephthalate(PET)micro powder to obtain modified recycled PET foam.Recycled PET is modified by isopropyl triethoxysilane,which can be used for manufacturing packaging bags.The application of recycled polyethylene packaging bag prepared by adding slipping agent containing porous silica can solve the problem of the packaged material contaminated by the white powder of the slipping agent.
polyolefinrecyclinghydrogenolysisrecyclingpackaging field