POLYMER-POLYMER COMPOSITE BASED ON WASTE EVA

Abstract

Development of technology for the processing of cross liked EVA waste, followed by the use of polymer / polymer composite PVC / EVA as a filler. Method. The determination of the MFI was carried out in accordance with ISO 1133: 1997 on a capillary viscometer of constant pressure at a temperature of (190 ± 0,5) ° С and a weight of 2,16 kg. The thermostability  and  melting  point  are  determined  using  the  RM-200C  Hapro  rheometer  plastograph.  The mechanical properties were determined on a bursting machine according to the ASTM D638. Hardness - using  a  hard-gauge  with  a  Shore-D  scale,  the  density  by  hydrostatic  weighing  method  on  the  analytical scales RADWAG AS-X2.  Selected equipment for shredding and further processing of sewed EVA waste. Waste was subjected to rolling after treatment with a plasticizer (stearic acid) at 130-140 °C. The resulting compact mass was sprayed. The properties of the resulting PVC film, filled with cross liked EVA, were determined. The strength of this film compared with the classical recipe is lower, but when using such materials in the composition  can  obtain a material  with  high  physical  and  mechanical  properties  and, of course,  achieve maximum non-waste production, which also has a positive impact on the economy of the enterprise. Scientific novelty. For the first time, the technology of using waste cross liked EVA as a filler for plasticized PVC has been developed. The peculiarities of physical and mechanical properties of the received
compositions are established. Practical  meaning.  The  developed  technology  allows  to  provide  non-waste  production  of  EVA
products at enterprises.