30 research outputs found
The effect of chemical modification on properties of polypropylene/bagasse fiber composites compounding using two roll mill
No full textLink to publisher's homepage at http://www.scientific.net/This study is concerned on chemical modification of bagasse fiber (BF) filled polypropylene (PP) composites compounding using two roll mill. The fibers were chemically modified with different chemical treatment (alkaline, acetic acid and silane coupling agent). Effect of chemical modification towards BF/PP composites was evaluated by tensile test and flexural test. The chemical modification efficiency was verified by Fourier Transform Spectrometer (FTIR) analysis. From FTIR analysis, there is an increase on intensity on acetyl group (C-H) indicated the existing of chemical bonding between PP and BF. Chemical modified composites increased the mechanical behavior. Composites that modified with acetylation (acetic acid) shows better mechanical properties compared to others
Effect of mixing parameter on epoxy composites: mechanical and microscopy analysis
No full textAccess is limited to UniMAP community.Effect of mixing speed and mixing time on epoxy/nanoclay composites’ mechanical and morphology properties has been studied in this paper. Fixed amount of nanoclay (3phr) was used to mix by 250 rpm and 500 rpm for 1, 2, 2.5 and 3 hours respectively. Morphology analysis examined the formation of agglomeration on the matrix. Longer mixing time was found to facilitate the dispersion of nanofiller. Phase analysis found only small increment in interlayer spacing of composites. It indicated the intercalation was not occurred effectively. Result of the flexural strength were significantly low. It was believed that the samples posed higher compression strength at the expense of flexural strength thus caused them to be very brittle. The compression strength showed increasing value with increasing speed and mixing time. In conclusion the mixing time and mixing speed help to promote better dispersion and thus enhanced mechanical properties
Polyolefin layered silicates nanocomposites - A review
No full textLink to publisher's homepage at http://www.ttp.net/A review is given of polyolefins layered silicates nanocomposites. This group of commodity thermoplastic is widely used and gain a great attention among researcher now days for nanocomposite preparation with layered silicates as inorganic filler. Herein, the structure and properties of layered silicates, compatibilzations of polyolefins, the syhthesise preparative method are discussed in general
Tensile and morphology properties of polylactic acid/ treated typha latifolia composites
No full textLink to publisher's homepage at http://www.ttp.net/This paper is focused to investigate the effect of treated natural fiber (typha latifolia) content on tensile and morphology properties of polylactic acid (PLA)/treated typha latifolia (T-TyLa) composites. The composite was compounded using heated two roll mill and the composite samples were prepared through compression molding. Tensile test and scanning electron microscopy (SEM) analysis were carried out to study the properties of PLA/T-TyLa composites. The results showed that the tensile strength of PLA/T-TyLa composites was decreased for about 43% with initial addition of T-TyLa content. The tensile modulus of the composites was increased (23%-91%) with increasing of fiber content. However, increased in fiber content reduced the elongation at break for about 53%-67% of PLA/T-TyLa composites. The optimum increment was obtained at 30 wt% of fiber content. SEM results showed that fiber dispersion was better for PLA/T-TyLa composites at lower fiber content
Effect of organo-montmorillonite addition on compressive properties of epoxy (DGEBA) using isophorondiamine as curing agent
No full textThermal behaviors of polypropylene copolymer/kaolin geopolymer composites
No full text© 2022 Author(s).This study examined the thermal properties of different composition raw kaolin and kaolin geopolymer filler in polypropylene copolymer (PP) composites. PP composites with varying composition of kaolin geopolymer filler (0 wt%, 2 wt.%, 4 wt.%, 6 wt.%, 8 wt.%, and 10 wt.%) was prepared and compared with PP copolymer composite with kaolin. Kaolin is an aluminosilicate based mineral filler used to prepare geopolymer paste by combining with alkaline activator solution. Characterization of PP copolymer composite based on kaolin geopolymer and kaolin was tested with Differential Scanning Calorimetry (DSC). Based on the research outcomes, kaolin geopolymer filler has large amounts of crystallinity in composites with higher melting temperature that ease the flow of melt for processing due to low viscosity
Elastic interactions between single microcrack and single osteon microstructure of human femur cortical bone
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