Abstract The improvement of the brittle behavior Polylactic acid (PLA) resin was studied by blending it with Polycaprolactone (PCL) resin. These materials were fabricated into compressed films and injection moldings. values tensile modulus strength appropriate, judging from rule mixtures. However, ultimate strain very small. Dicumyl peroxide (DCP) added to this blend system improve its strain. It found that value peaked at low DCP concentration. samples contents show yield point ductile...

Abstract In this study, kenaf natural fibers were coated with acetone‐thinned epoxy resin before compounding high‐temperature polyethylene terephthalate (PET). Thus, composites of sodium hydroxide treated and epoxy‐resin (KF) reinforced PET (CTKF‐PET) manufactured using extrusion compression molding techniques at an optimized 10 wt% constant fiber loading processing temperatures 240, 250, 260°C, characterized for mechanical, thermal, morphological performances. The obtained results showed...

Abstract Nanocomposites containing a thermoplastic blend and organophilic layered clay (organoclay) were produced by melt compounding. The composition was kept constant [polyamide 6 (PA6) 70 wt % + polypropylene (PP) 30 %], whereas the organoclay content varied between 0 10 %. mechanical properties of nanocomposites determined on injection‐molded specimens in both tensile flexural loading. Highest strength values observed at an 4 for blends. superior to one, which traced effect...

Abstract Onium modified montmorillonite (organoclay) was compounded with natural rubber (NR) in an internal mixer and cured by using a conventional sulfuric system. Epoxidized 50 mol % epoxidation (ENR 50) 10 parts per hundred (phr) used as compatibilizer this study. For comparison purposes, two commercial fillers: carbon black (grade N330) silica vulcasil‐S) were used. Cure characteristics carried out on Monsanto MDR2000 Rheometer. Organoclay filled vulcanizate showed the lowest values of...

Abstract The current research has produced engineering plastics composite for automotive applications using waste recycled plastic polyethylene terephthalate (RPET) bottles as the matrix and compounded with chemically modified natural kenaf fibers in comparison virgin (PET) composites under same processing conditions. Kenaf were surface by alkali epoxy coating treatment methods. RPET which mechanically pulverized a 5 mm mesh size aperture into flakes melt‐mixed 10 wt% of short twin‐screw...

Abstract In this study, a preliminary finding is carried out to obtain the optimum E‐glass fiber content in polypropylene (PP) plastic products using loadings of 5, 10, 20, 30, and 40 wt%. The formulation with loading 10 wt% glass was reprocessed times via extrusion compression molding techniques simulate actual recycling impacts on service life properties such as mechanical, toughness, chemical, thermal, composition, morphology. result, mechanical were lost after each reprocessing without...

Abstract Various blend ratios of high‐density polyethylene (HDPE) and ultrahigh‐molecular‐weight (UHMWPE) were prepared with the objective determining their suitability as biomaterials. Although presence HDPE in blends enabled melt processing, UHMWPE helped to improve toughness resulting blends. The processability was investigated Brabender torque, which used an indication optimum conditions. characterized differential scanning calorimetry. mechanical tests performed on included tensile,...

Abstract Onium ion‐modified montmorillonite (organoclay) was melt compounded with natural rubber (NR) in an internal mixer and cured by using a conventional sulfuric system. Epoxidized 50 mol % epoxidation (ENR 50) used 10 parts per hundred (phr) as compatibilizer. The effect of organoclay different filler loading up to phr studied. Cure characteristics were determined Monsanto MDR2000 rheometer, whereas the tensile, compression, tear properties nanocomposites measured according related ASTM...

The degradation and moisture uptake of sago-starch-filled linear low-density polyethylene (LLDPE) composites have been studied. Enzymatic hydrolysis the apparently involves surface starch granules; embedded granules are not easily accessible because poor absorption or transmission property matrix. Exposure to weathering resulted in massive deterioration typified by turbidity, discoloration, embrittleness dimensional changes. Soil burial led a drop pH soil presence holes on samples, probably...

The effect of different concentrations epoxy surface coating treatment on the thermal and mechanical properties kenaf fiber reinforced recycled poly (ethylene terephthalate) (RPET) composites was studied. Silane-treated fibers (SKF) were epoxy-coated with optimized (in ratios 1:4, 1:5, 1:6 to acetone solutions) improve degradation/decomposition resistance interfacial bonding RPET matrix. coated-silane treated 1:4 ESKF, 1:5 ESKF compounded at an temperature 240°C, their constituents’ KF/RPET,...

Abstract White rice husk ash (WRHA) and silica filled ethylene–propylene–diene terpolymer (EPDM) vulcanizates were prepared using a laboratory size two‐roll mill. Curing characteristics physical properties of studied with respect to the filler loading type. Filler was varied from 0–50 parts per hundred resin (phr) at 10 phr intervals. carried out semi‐efficient vulcanization system in Monsanto rheometer. Enhancement curing rate observed increasing WRHA loading, whereas opposite trend for...

Liquid natural rubber (LNR) with a molecular weight Mn =16×103 was prepared by the depolymerization of deproteinized latex (DPNR). The liquid characterized FTIR and H'NMR spectroscopic analysis. LNR premixed epoxy resin (EP) cured diamine curing agent for 1 h at 100 °C post 110 °C, 2 in air oven. modified EP containing different contents (5, 10, 15 20 phr) were evaluated. Thermal, mechanical morphology properties determined. fracture toughness (KIC) both unmodified EPs determined on static...

The aim of this study is to investigate the potential use palm oil and prepare new UV (ultraviolet) radiation-curable acrylated polyester prepolymers, which could be used in wood coating industry. Thus, oil-based resins PEPP-1 (from refined, bleached, deodorized oil) PEPP-2 crude were synthesized at Advanced Oleochemical Technology Centre (AOTC) laboratory Palm Oil Research Institute Malaysia (PORIM). performances these with respect their curing rate physical-mechanical properties cured...