Showing papers in "Polymer Testing in 2019"

TL;DR: In this article, PEEK and PEI were printed to investigate the relationship of nozzle temperature, building orientation and material properties by analyzing the morphology, chemical composition and SEM of printed PEI and PEEK.

TL;DR: In this article, an antimicrobial film was produced based on the chitosan biopolymer, in which zinc oxide (ZnO) particles and Melissa essential oil (0, 0.25 and 0.5% (W/V)) were used for the enhancement of the biopolymers properties.

TL;DR: In this article, the wound healing properties of silver nanoparticles embedded in electrospun nanofibers containing polyvinyl alcohol (PVA),polyvinylpyrrolidone (PVP), pectin (PEC), and Mafenide acetate (MF) was studied.

TL;DR: In this paper, three types of agricultural waste materials were applied as fillers for manufacturing epoxy-based composites: walnut shell (WS), hazelnut shells (HS) and sunflower husk (SH).

TL;DR: An electrospun nanofiber mat was prepared based on polyvinyl acohol and a natural pigment from red cabbage (Brassica oleracea L.) extract (RCE) to function as a pH biosensor as mentioned in this paper.

TL;DR: In this article, the first time SSD was embedded with nanofibers, the objective of this study was to fabricate wound dressings by blending of SSD with cellulose acetate (CA) for high profiled antibacterial properties.

TL;DR: In this paper, the influence of waste basalt powder (BP) on selected properties of rigid polyurethane foams (PUR) was evaluated and it was observed that BP caused an increase in the reactivity of rigid PU during the foaming process, which was also confirmed by dielectric polarization changes.

TL;DR: In this paper, the influence of environmental effects on the color, biodegradability, oxidation stability, thermal stability and complex modulus of bamboo/kenaf fiber reinforced epoxy hybrid composites was investigated.

TL;DR: In this article, a multicomponent flame retardant system of melamine polyphosphate (MPP), melamine cyanurate (MC) and aluminum diethylphosphinate (AlPi) is proposed and investigated for thermoplastic polyurethane (TPU).

TL;DR: In this article, an improved isothermal decomposition dynamics research instrument at temperature intervals from 378.15 to 398.15 was used to calculate the thermal decomposition kinetic parameters of Nitrocellulose (NC).

TL;DR: In this paper, the authors evaluated the aerobic biodegradation of modified Poly(lactic acid) (PLA) based biocomposites under composting condition and found that the results confirmed modified PLA films as biodegradable and also confirmed suitability of the test system for studying biopolymer bioodegradation.

TL;DR: In this paper, the effect of cold plasma on the properties of xanthan gum (XG) at different power and treatment time was investigated. But, cold plasma treatment did not show any effect on proximate composition of xanthine gum.

TL;DR: In this paper, a self-healing composites based on epoxy resin containing poly(methyl methacrylate) (PMMA) microcapsules filled with healing agents were prepared.

TL;DR: In this article, the mode-I interlaminar fracture toughness of flax, glass and hybrid flax-glass fiber woven composites was studied by using a DCB test.

TL;DR: In this paper, the effect of PMMA content on the crystallization behavior of PVDF in the blend was experimentally investigated and the thermodynamic interaction parameter of Flory-Huggins was evaluated as a function of the PMMA proportion in the blends.

TL;DR: In this article, the effects of GO-HBPA on the fracture toughness, mechanical performance, and thermal properties of the graphene/epoxy nanocomposites were investigated, and the results revealed that the graphene oxide exhibited great compatibility and dispersion in the epoxy matrix as well as strong interfacial interactions with the matrix.

TL;DR: In this paper, two kinds of hydroxyl-terminated polyurethanes (HTPU1 and HTPU2) with different molecular weights were used to investigate the influence of phase structure on the overall resin performances.

TL;DR: In this paper, the effect of GNP concentration on the tensile properties of epoxy composites fabricated by three selected dispersion techniques was explored, and the results were analyzed in terms of tensile strength, fracture elongation, and tensile modulus.

TL;DR: In this paper, the formulation of chitosan (CH) films with vanillin as a natural antioxidant cross-linking agent, to simultaneously improve their physical, barrier, antioxidant and mechanical properties was investigated.

TL;DR: In this article, the authors highlight properties of natural fibers and waste (recyclable) material composite as acoustic material and significant parameters which affect acoustic performance and highlight that natural fiber is an efficient alternative to synthetic material due to their low cost and less environment effect.

TL;DR: The relation between process parameters and properties of polycarbonate (PC) sheet after friction stir welding (FSW) was investigated in this article, showing that at low and high levels of heat input sound joints cannot be attained.

TL;DR: In this paper, AG-CuO was used as a catalyst in the reduction of three different nitroarenes of 4-nitrophenol (4-NP), 2,6-dinitrophensol (2, 6-DNP), and 2-nibrophenols (2-NP) to corresponding aminophenols by using sodium borohydride.

TL;DR: In this article, sesame protein isolate (SPI) based bionancomposite films containing TiO2 nanoparticles (1, 3 and 5%w/w) were produced by casting method.

TL;DR: In this article, a biopolymer-coated open pores polyurethane sponge (OPPUS) was used as an easily separating substrate for catalytic silver metal nanoparticles.

TL;DR: In this article, the effects of different kinds of plant oils, including olive, maize and canola on the various aspects of the plant major seed (PMS) based biodegradable films were evaluated.

TL;DR: In this article, the failure modes and crashworthiness characteristics of intraply hybridized fiber reinforced pipes (FRP) made of basalt and glass fiber reinforcements subjected to quasi-static compression loading were explored.

TL;DR: In this article, the effects of different wavelength ranges of UV lights on chemical compositions and macro-properties of asphalt, three UV lights were used to conduct the aging test of asphalt for 1-288h.

TL;DR: In this article, the effect of spinning conditions including, take-up speed and air-gap distance and post-treatment methods on the fabrication of cellulose acetate hollow fiber membranes (CA-HFMs) for CO2/N2 and CO 2/CH4 separations have been reported.

TL;DR: In this article, a composite structure of polyvinylidene fluoride (PVDF), zinc oxide (ZnO) nanorods (NRs), and barium titanate (BaTiO3) nanosphere (BT NS) is fabricated by electrospinning.

TL;DR: In this article, the effect of wheat gluten (WG), carboxymethyl cellulose (CMC) and cellulose nanofiber (CNF) concentration on water vapor permeability (WVP), mechanical and color properties of the biodegradable nanocomposites were investigated using response surface methodology (RSM).