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The utilization of different waste materials in concrete as partial replacement of cement or filler is having importance today, mainly on account of the improvements in the long-term durability of cement composites combined with ecological benefits. Fly ash (FA), Granulated Blast Furnace Slag (GBS), Silica Fume (SF) or High Reactive Metakaolin (HRM) is materials, which confirm to these requirements. However, a number of case studies with other waste materials are described in the literature as well. Copper slag is...

This study focused on the synthesis and characterization of L-proline polymer composite that will be tested for mild steel corrosion protection. Poly(butylene succinate) extended with 1,6-diisocyanatihexane (PBS) and L-proline were utilized to the synthesis of poly(butylene succinate)-L-proline composite. Solution polymerization was used as the method to get the amorphous water soluble polymer composite; and was characterized by FTIR, XRD and SEM. SEM-EDX of the polymerized composites was performed and the % count...

In this paper, a PVC filled with a biodegradable polymer, such as polyhydroxybutyrate, was investigated. Polyhydroxybutyrate is a natural biopolymer, but its use limits its high cost. These polymeric composites were obtained by rolling. Thermal and thermomechanical properties of polymer composites based on PVC containing various amounts of polyhydroxybutyrate are studied. It has been determined by differential scanning calorimetry method that the glass transition temperature of PVC decreases with increasing percen...

In the current work, a series of poly(sodium acrylate)-co-acrylamide (polyNaA-co-AAm/pectin and polyNaA-co-AAm/bentonite) superabsorbent composites were prepared using pectin, bentonite, acrylamide and acrylic acid (AA) in the presence of N,N-methylenebisacrylamide (MBAAm) as cross-linker and a mixture of ammonium persulfate and TEMED as initiator. The structure and sorption capacity of the developed composites were characterized by Fourier transform infrared spectroscopy (FTIR), voltammetry and UV-visible spectro...

In order to reduce the negative impact of PVC on the environment, it is becoming popular to produce composite materials based on PVC filled with various natural fillers. For example, bentonite as filler in a polymer matrix can absorb volatile toxic components and accelerate the degradation of PVC. Also in this paper, natural polysaccharides pectin and starch are considered as fillers. Pectin and starch are also capable of accelerating biodegradation of PVC. Nevertheless, the thermal stability of the resulting poly...