摘要
Environmental pollution is a whole world concern. One of the causes of </span><span><span style="font-family:Verdana;">that </span><span style="font-family:Verdana;">pollution</span></span><span><span style="font-family:Verdana;"> is the proliferation of plastic waste. Among these </span><span style="font-family:Verdana;">wastes</span><span style="font-family:Verdana;"> there is expanded </span></span><span style="font-family:Verdana;">polystyrene (EPS), mainly from </span><span style="font-family:Verdana;">packaging</span><span style="font-family:Verdana;">. This study aims to valorize EPS waste by developing a composite material from EPS waste and wood waste. For this purpose, a resin made of EPS has been elaborated by dissolving EPS in acetone. That resin was used as a binder in volume proportions of 15%, 20%, 25% </span><span style="font-family:Verdana;">and</span><span style="font-family:Verdana;"> 30% to stabilize the samples. Some of them were thermoformed. The method of elaboration was based on a device consisting of an extruder for mixing the constituents, and a manual press for shaping and compacting the samples. Analyses show that the drying time depends on the composition of the mixture. Increasing the resin content leads to reduce water absorption and porosity of the samples;it also contributes to homogenize the internal structure of the samples. However, for the same resin contents, the thermoformed samples are less porous;they have </span><span style="font-family:Verdana;">more</span><span style="font-family:Verdana;"> homogeneous internal structure</span><span style="font-family:Verdana;">;and</span><span style="font-family:Verdana;"> absorb less water than non-thermoformed samples.
Environmental pollution is a whole world concern. One of the causes of </span><span><span style="font-family:Verdana;">that </span><span style="font-family:Verdana;">pollution</span></span><span><span style="font-family:Verdana;"> is the proliferation of plastic waste. Among these </span><span style="font-family:Verdana;">wastes</span><span style="font-family:Verdana;"> there is expanded </span></span><span style="font-family:Verdana;">polystyrene (EPS), mainly from </span><span style="font-family:Verdana;">packaging</span><span style="font-family:Verdana;">. This study aims to valorize EPS waste by developing a composite material from EPS waste and wood waste. For this purpose, a resin made of EPS has been elaborated by dissolving EPS in acetone. That resin was used as a binder in volume proportions of 15%, 20%, 25% </span><span style="font-family:Verdana;">and</span><span style="font-family:Verdana;"> 30% to stabilize the samples. Some of them were thermoformed. The method of elaboration was based on a device consisting of an extruder for mixing the constituents, and a manual press for shaping and compacting the samples. Analyses show that the drying time depends on the composition of the mixture. Increasing the resin content leads to reduce water absorption and porosity of the samples;it also contributes to homogenize the internal structure of the samples. However, for the same resin contents, the thermoformed samples are less porous;they have </span><span style="font-family:Verdana;">more</span><span style="font-family:Verdana;"> homogeneous internal structure</span><span style="font-family:Verdana;">;and</span><span style="font-family:Verdana;"> absorb less water than non-thermoformed samples.