Analysis,identification and application of waste plastics recycled from domestic and agricultural solid wastes
In this paper,four kinds of waste plastics,which recycled from domestic and agricultural solid wastes,were analyzed and identified.One of which was selected for preparing low density polyethylene(LDPE)/linear low density polyethylene(LLDPE)flexible packaging film.The effect of the amount of waste plastic on the tensile and impact properties of the film was studied.The results showed that:The waste daily chemical bottles and milk bottles were both pure high density polyethylene(HDPE),the waste wrap film was the binary blend of LDPE and LLDPE,and the waste agricultural film was the ternary blend of LDPE,LLDPE and ethylene vinyl acetate copolymer(EVA).Among which,the waste milk bottles could be reused as high performance HDPE materials.When it was used together with metallocene polyethylene(mPE)in the LDPE/LLDPE film,the tensile and impact properties of the film could be improved.
domestic and agricultural solid wasteswaste plasticsidentificationapplicationflexible packaging film
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