Recyclingof Expanded polystyrene (EPS), Improvement of the Resulting Product Properties by Using Silica based Nanoparticles

A new recycling technique for recycling and upcycling of expanded polystyrene foams (EPS) which does not degrade mechanical properties has been developed here.In daily life, EPS are widely used as packaging material, construction material, and in household appliances as well as many others. On the other hand,it is a part of thermoplastic waste, which has caused lots of environmental pollutions because it cannot be decomposed in nature. The aim of this study is toupcycle process developed of the waste EPS foams by using solution-thermal method to improve product purity and properties by usingimpact modifierslike elastomeric materials and silica based nanoparticles. Thecomposite was preparedin a co-rotating twin screw extruder.The content of SEBS was varied between 5 -20 wt%.Evaluation and comparison of properties was conductedfor blend of SEBS withvirginEPS,recycledEPS, virgin PS andwith recycled PS.Then modified nanoparticles wereadded to the above mentioned blends.As a result some improvements were observed insome mechanical properties and impact strength

کلیدواژه ها:

Recycling ، EPS ، Impact modifier ، Elastomer ، Extrusion ، Nanoparticles