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首页> 外文会议>Symposium on Characterization of Minerals, Metals, and Materials >Recycled Gypsum Particles Incorporation in Recycled Expanded Polystyrene by Biodegradable Solvent-Preparation and Characterization
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Recycled Gypsum Particles Incorporation in Recycled Expanded Polystyrene by Biodegradable Solvent-Preparation and Characterization

机译：利用可生物降解溶剂制备再生石膏颗粒与再生聚苯乙烯泡沫塑料

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The recycling of expanded polystyrene (EPS) by the use of ethyl acetate, a biodegradable solvent is an alternative by the regular recycling process. Due to the fragility of the polystyrene (PS), 2 wt% of glycerol was added in the recycled expanded polystyrene (REPS) to increase the mobility of the polymer chains reducing the brittleness of this material. As a dispersed phase was used recycled gypsum from construction waste. 5, 10, and 15 wt% of recycled gypsum were used to obtain composites by melt extrusion. Virgin PS, RPS, RPS/Glycerol, and RPS/Glycerol/Gypsum composites were characterized by Thermogravimetric Analysis (TG), Differential Scanning Calorimetry (DSC), Field Emission Scanning Electron Microscopy (FEG-SEM), and flammability test. The results showed that the addition of glycerin plasti-cized RPS and Gypsum particles improved the thermal stability. In the flammability test, the samples containing gypsum do not extinguish the flames of the material, this phenomenon was not observed in the other compositions.
机译：通过使用乙酸乙酯（一种可生物降解的溶剂）回收发泡聚苯乙烯（EPS）是常规回收过程的替代方法。由于聚苯乙烯（PS）的易碎性，在回收的发泡聚苯乙烯（REPS）中添加2 wt%的甘油，以增加聚合物链的流动性，降低该材料的脆性。作为分散相，从建筑垃圾中回收石膏。使用5、10和15 wt%的回收石膏通过熔融挤出获得复合材料。采用热重分析（TG）、差示扫描量热法（DSC）、场发射扫描电子显微镜（FEG-SEM）和可燃性测试对未经处理的PS、RPS、RPS/甘油和RPS/甘油/石膏复合材料进行了表征。结果表明，甘油增塑RPS和石膏颗粒的加入提高了热稳定性。在可燃性试验中，含有石膏的样品不会熄灭材料的火焰，在其他成分中未观察到这种现象。

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