Abstract Blends using raw materials from industrial waste were molded. As thermoplastic matrix was used recycled polypropylene (PP), a type of residue containing thermosetting powder from high-pressure laminate (HPL) was used as filler and epoxidized soybean oil (ESO) was also utilized. In order to evaluate the mechanical and thermal properties were performed tensile, flexural, Charpy impact tests, softening point temperature (Vicat), heat deflection temperature (HDT), dynamic-mechanical thermal analysis (DMTA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Characterization analyzes as density and scanning electron microscopy (SEM) were also performed. The filler HPL showed good dispersion in the recycled PP matrix and the density already increased from adding 10% of HPL. The tensile and flexural strengths decreased with the addition of the HPL which also caused increase in the heat deflection temperature and decrease the tenacity of the PP matrix. The values of tensile and flexural modulus increased with the addition of 40% HPL. The storage modulus obtained by DMTA improved with the addition of filler, especially the composite containing 40% HPL. The degree of crystallinity also increased with increasing amount of HPL. In general, the use of HPL as reinforcing filler in blends is feasible and can be used for example in the manufacture of supermarket box, pallets, chairs, internal coating of vehicles and among others.
#2Hongshuai Lei(BIT: Beijing Institute of Technology)H-Index: 19
Last. Daining Fang(PKU: Peking University)H-Index: 64
view all 5 authors...
Abstract Fiber-reinforced polymer composite structures are increasingly used as load-bearing components in aerospace and automotive industries. The precise mechanical properties of composites are essential for structural design and analysis. Void defects, which are caused by the curing process of resin matrix, greatly impact the overall performance of composite structures. In this study, a novel image-based finite element modeling algorithm is proposed to acquire the real three-dimensional topog...
Last. Jian-Bing Zeng(SWU: Southwest University)H-Index: 32
view all 5 authors...
Abstract Fully biobased and high performance epoxy thermosets were synthesized through curing of epoxidized soybean oil (ESO) with crystalline diamino terminated polyamide 1010 oligomers (OPAs). Four OPAs with different molecular weights were prepared to cure ESO. The results of isothermal curing investigation indicated that the curing rate decreased with increasing molecular weight of the OPA. The effects of chain length of OPAs on the thermal transition, crystallization behavior mechanical pro...
Abstract High pressure laminate has a key role at the protection of wood-based panels. Borax and recycled papers can be used for production of high pressure laminate which may impart the multitude effects. The readily availability of waste papers and borax may be a useful alternative to expensive papers with high quality, and also can compensate the strength losses of recycled papers. The recycled paper and borax are relatively inexpensive and environmentally friendly, and this results the produ...
Thermoplastic mengkuang composites are an alternative material to solve environmental pollution issues associated with synthetic polymers. Mengkuang, or Pandanus atrocarpus, raw fiber was cut, dried, ground, and sieved to the required size. The fiber was filled into the matrix of natural rubber (NR) and high-density polyethylene (HDPE) by melt blending via internal mixer. The blend of HDPE/NR at 60/40 ratio with fiber sizes of 125 µm, 250 µm, and 500 µm were prepared at fiber contents of 10%, 20...
The mechanical and dynamic mechanical properties of cellulose fibers-reinforced polystyrene composites were investigated as a function of cellulose fiber content and coupling agent effect. The composites were prepared using a corotating twin-screw extruder and after injection molding. Three levels of filler loading (10, 20, and 30 wt%) and a fixed amount of coupling agent (2 wt%) were used. The results showed that a cellulose fiber loading of more than 20 wt% caused decrease in the mechanical pr...
#2Ana Antelava(LSBU: London South Bank University)H-Index: 3
Last. Animesh Dutta(U of G: University of Guelph)H-Index: 36
view all 5 authors...
Plastic plays an important role in our daily lives due to its versatility, light weight and low production cost. Plastics became essential in many sectors such as construction, medical, engineering applications, automotive, aerospace, etc. In addition, economic growth and development also increased our demand and dependency on plastics which leads to its accumulation in landfills imposing risk on human health, animals and cause environmental pollution problems such as ground water contamination,...
Short jute fiber reinforced polypropylene (PP) composites were prepared using a single screw extrusion moulding. Jute fiber content in the composites is optimized with the extent of mechanical properties, and composites with 20% jute show higher mechanical properties. Dissimilar concentrations of several fire retardants (FRs), such as magnesium oxide (MO), aluminum oxide (AO), and phosphoric acid (PA), were used in the composites. The addition of MO, AO, and PA improved the fire retardancy prope...
Abstract Plastic solid waste (PSW) of polymers (like: high density polyethylene (HDPE), low density polyethylene (LDPE), Nylon etc.) is creating new challenges, which in today's scenario are major research concerns. A sharp rise has been observed in production of different products based on different plastic material. This huge increase in plastic commodities also increases the waste generation thus creating new challenges. Some researchers have reported work in the field of PSW management with ...
For the last decades, nanocomposites materials have been widely studied in the scientific literature as they provide substantial properties enhancements, even at low nanoparticles content. Their performance depends on a number of parameters but the nanoparticles dispersion and distribution state remains the key challenge in order to obtain the full nanocomposites’ potential in terms of, e.g., flame retardance, mechanical, barrier and thermal properties, etc., that would allow extending their use...
Present work proposes a recycling form of multilayer food packages to avoid their incineration, landfill of wastes or re-using of their individual components. The manufacturing process of the material consists of binding several sheets by the non-simultaneous application of temperature and pressure, these being bound by the fusion of the polyethylene, without any other adhesives. The influence of elected variables (temperature, pressure, time and number of sheets) on the mechanical properties is...