Natural rubber latex is </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">white liquid in the form of </span><span style="...Natural rubber latex is </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">white liquid in the form of </span><span style="font-family:Verdana;">the</span><span style="font-family:Verdana;"> colloidal dispersion of rubber globules suspended in </span><span style="font-family:Verdana;">the </span><span style="font-family:""><span style="font-family:Verdana;">aqueous liquid. Produced in large quantities in Ivory Coast, the local transformation of natural latex has so far remained insignificant, although some attempts have been made to use it in the manufacture of flexible facade briquettes for rounded walls. Thus, this study aims to incorporate clay as a filler in natural latex for use as an adhesive for tile installation. To do this, diffe</span><span style="font-family:Verdana;">rent proportions of clay paste were added to the natural latex and the resulting mixtures were used to make the sample and tile adhesive. From the analysis of the results obtained, it appears that the samples with a clay paste density of 0.8 and 1 absorb less water and show</span></span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> good pull-out strength. The mixtu</span><span style="font-family:""><span style="font-family:Verdana;">res of 30% and 35% latex and 0.8 </span><span><span style="font-family:Verdana;">and 1 clay paste density respectively have pullout stresses greater than 1 N/mm</span><sup><span style="font-family:Verdana;">2</span></sup><span style="font-family:Verdana;">. According to</span></span><span style="font-family:Verdana;"> NF EN 1348, these adhesives can therefore be used as tile adhesive.展开更多
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;">p...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.展开更多
文摘Natural rubber latex is </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">white liquid in the form of </span><span style="font-family:Verdana;">the</span><span style="font-family:Verdana;"> colloidal dispersion of rubber globules suspended in </span><span style="font-family:Verdana;">the </span><span style="font-family:""><span style="font-family:Verdana;">aqueous liquid. Produced in large quantities in Ivory Coast, the local transformation of natural latex has so far remained insignificant, although some attempts have been made to use it in the manufacture of flexible facade briquettes for rounded walls. Thus, this study aims to incorporate clay as a filler in natural latex for use as an adhesive for tile installation. To do this, diffe</span><span style="font-family:Verdana;">rent proportions of clay paste were added to the natural latex and the resulting mixtures were used to make the sample and tile adhesive. From the analysis of the results obtained, it appears that the samples with a clay paste density of 0.8 and 1 absorb less water and show</span></span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> good pull-out strength. The mixtu</span><span style="font-family:""><span style="font-family:Verdana;">res of 30% and 35% latex and 0.8 </span><span><span style="font-family:Verdana;">and 1 clay paste density respectively have pullout stresses greater than 1 N/mm</span><sup><span style="font-family:Verdana;">2</span></sup><span style="font-family:Verdana;">. According to</span></span><span style="font-family:Verdana;"> NF EN 1348, these adhesives can therefore be used as tile adhesive.
文摘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.
