Mechanical properties were evaluated in high‐density polyethylene (HDPE) containing plate‐like nanoclay (NC) and particulate nano calcium carbonate (nCaCO3). A two‐step melt mixing method was utilized to prepare nanocomposites withNC/nCaCO3 hybrid content varying from 7 to 15 wt%. Optimization of the morphological, rheological and mechanical characteristics was carried out via Response Surface Methodology

In this article, we discuss the radiation effects and ethylene‐vinyl acetate (EVA) as compatibilizing agent on waste polyethylene (WPE)/virgin polyethylene (VPE), 80/20 wt%, reinforced by Kevlar fiber (Aramid). Hence, by melt mixing the compatibility between WPE and VPE will be performed by adding 10 phr fixed weight of EVA. After that various weights of Kevlar fiber at phr 1.5, 2.5, and 3.5 were reinforced

Bio‐oil based plasticizers have gained great attention in rubber industry as alternatives of petro‐based plasticizers with high content of polycyclic aromatic hydrocarbons. In this work, five fatty acid benzyl esters were synthesized by the esterification of fatty acids (lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, which are obtained after hydrolysis of some vegetable oils)

The gamma (γ) induced modifications in the synthesized Pani‐Ag/PVA nanocomposite (NCP) thermal and optical characteristics have been depicted. The induced effect was investigated applying X‐ray diffraction, differential scanning calorimetry, and UV‐spectroscopy. Further, the color intensity (ΔE) of the irradiated NCP and blank has been estimated. The γ radiation decreases the optical band gap value

Linear adjustable efficient nanocontrollers that could respond to pH signals to trigger selective drug release were designed and discussed. They were fabricated by encapsulating theophylline into hydroxypropyl methylcellulose acetate succinate nanofibers through coaxial electrospinning. Theophylline was fixed in the core layer in an amorphous state. in vitro drug release behaviors were examined in

Poly(vinyl chloride) (PVC) is commonly used in many industrial applications. Ultraviolet (UV) radiation causes undesirable changes to PVC properties. Therefore, PVC should be protected from radiation to increase its lifetime for outdoor applications. Here, new organotin complexes containing captopril were synthesized for use as low‐concentration additives to enhance PVC photostability. Reacting captopril

Properties of silicone thin films and coatings are strongly hooked on curing reaction. We discussed about cure process of silicone nanocomposites containing halloysite nanotube (HNT) at different loading levels (0.5, 1.0, and 2.0 phr), both qualitatively and quantitatively. Systems containing pristine and aminosilane‐functionalized HNT were cured nonisothermally and heat buildup of the reaction was

Ternary polymer blends based on polypropylene (PP)/poly(styrene‐ethylene‐butylene‐styrene) (SEBS)/polycarbonate (PC) compatibilized through maleic anhydride‐grafted SEBS were prepared using a twin‐screw extruder. Four different compositions in which the weight ratio of SEBS constituent was varied from 5% up to 30% were formulated in order to assess the relation between morphology and mechanical properties

Lanthanum aminobenzoate (LAB), cerium aminobenzoate (CAB), and lanthanum and cerium aminobenzoate (LCAB) were synthesized with p‐aminobenzoic acid, lanthanum nitrate, or cerium nitrate as raw materials to study the influence of different rare earth elements on the stability of rare earth stabilizers. The thermal stability of by CAB, LCAB, and LAB toward poly(vinyl chloride) (PVC) was studied. The results

The additive manufacturing (AM) process is used to build three‐dimensional (3D)‐printed components by depositing layers of materials one over another until it completes the building process. There are numerous ways to improve its strength and rigidity of AM processed components. In this research, we discuss an effective method to improve the strength of 3D‐printed component joints by reinforcing carbon

Since the advent of 5G network, polymeric low dielectric constant (low‐k) materials have been indispensable for high speed and stable signal transmission at microwave frequency. Herein, the low‐k composites of 1,2‐polybutadiene/styrene‐butadiene‐styrene triblock copolymer/ethylene‐propylene‐dicyclopentadiene (1,2‐PB/SBS/EPDM) were prepared with cured organic peroxide. Two structurally different organic

The combination effect of organically modified montmorillonite (OMMT) and nano‐SiO2 on the fire behavior of intumescent flame‐retarded epoxy resins (EPs) was evaluated. The results from fire tests show that the combination of intumescent flame retardant (IFR), OMMT, and nano‐SiO2 exerts an outstanding synergistic effect on improving the flame retardancy and smoke suppression properties of EPs. For

Two kinds of elastomers, styrene–butadiene copolymer (SBC) and ethylene‐methyl acrylate (EMA) were compounded by melt mixing wollastonite into polycarbonate (PC). The result demonstrated that EMA‐filled composites showed better mechanical properties compared to SBC‐filled composites, particularly elongation and impact strength. We observed a 53% increase in Izod impact strength, that is, 5.3‐fold increase

Modification of poly(vinyl chloride) surface was achieved via introducing a new Schiff base containing 1,2,4‐triazole ring system to the polymer backbone. The new Schiff base containing 1,2,4‐triazole ring and the resulted homogenous polymer (PVC‐L) was characterized using Fourier‐transform infrared spectroscopy. Copper chloride was then added to coordinate with homogenous polymer to form PVC‐L‐CuII

In this article, a facile and green strategy of nonisothermal crystallization induction was proposed to produce nanocellular biodegradable polymer composite foams, which was demonstrated by a composite system of poly(butylene succinate) (PBS) modified by hydroxyl‐functionalized graphene (HG) and chain extender. Nanocellular foams of chain extended PBS (CPBS) and CPBS/HG composite were prepared successfully

In the present work, poly(lactic acid) (PLA) was modified with two peroxide initiators: biphenyl peroxide (BPO) and dicumyl peroxide (DCP). The samples were all prepared with melt compounding method. Changes in the structure of PLA after the modification were analyzed with Fourier transformed infrared spectroscopy, gel penetration chromatography, and field emission scanning electron microscopy. Thermomechanical

Flame‐retardant blends of polyethylene‐octene elastomer (POE) and natural rubber (NR) filled with expandable graphite (EG) were melt‐mixed with azodicarbonamide to prepare elastomeric foams. The effect of the NR incorporation on the properties of EG filled POE foam was investigated. Gel content and microstructure observations revealed that the addition of NR into the POE/EG blend induced change in

The main purpose of this work was the valorization of waste wood flour as reinforcement in order to develop new wood‐based polymer composites (WBPCs). For that purpose, low‐density polyethylene/poly(lactic acid) (LDPE/PLA) blends were prepared in presence of poly(ethylene‐co‐glycidyl methacrylate) (PE‐g‐GMA) as compatibilizer and reinforced with 0–40 wt% of wood flour. The tensile properties, Charpy

The effect of organopalygorskite (OPGS), molybdenum sulfide (MoS2), and magnesium hydroxide (MH) combinations on fire retardant and flammability characteristics of low‐density polyethylene/ethylene vinyl acetate (LDPE/EVA) blends was investigated using the limited oxygen index (LOI), horizontal burning test (UL‐94), and cone calorimeter measurements. The combination of OPGS with exfoliated MoS2 nanosheets

Three different blending sequences were used to prepare the peanut shell powder (PSP)‐filled polylactic acid (PLA)/thermoplastic corn starch (TPCS) biocomposites. The blending sequences can be summarized as (1) S1: PLA was added, followed by TPCS and PSP, (2) S2: PLA was added, followed by PSP and TPCS, and (3) S3: TPCS was added, followed by PLA and PSP. Various loadings of PSP filler were used from

Microtubes with superior mechanical properties are highly desired in modern medical applications due to its convenience in drug delivery and micro invasive surgery. However, poor kink resistance is still a changeling issues because the high axial orientation is inevitable in conventional tube processing procedure. Herein, with combination of rotation extrusion technology and antibacterial titanium

The purpose of this study was to investigate the effect of carbon fiber (CF) and electron‐beam (EB) radiation on high‐temperature mechanical properties of ethylene‐vinyl acetate (EVA). Polymer composites were prepared by mixing on a two‐roll mill. After compression molding, the samples were irradiated between 60 and 180 kGy, and dynamic mechanical analysis (DMA) was used to characterize physical properties

Intense campaigning pressure on the UK polyvinyl chloride (PVC) sector up to the late 1990s forced strategic engagement with sustainable development. Simplified outcomes from a detailed, consensus‐based analysis by science‐based NGO The Natural Step (TNS) took the form of five TNS sustainability challenges for PVC published in 2000. UK manufacturing companies initially used these challenges to direct

Polyethylene terephthalate (PET) composites containing micro‐ and nanoglass flakes were prepared by melt blending. The percentage of nanoglass flakes was varied from 0.5, 1, 2, and 3 wt% and the concentration of microglass flakes was 1, 3, and 5 wt%. The effect of glass flake on morphology, physical, mechanical, and thermal properties of PET was studied using scanning electron microscopy (SEM), energy‐dispersive

Preparation of hydrogels based on carboxymethyl cellulose (CMC) using direct radiation grafting technique for removal of organic contaminant such as 4‐chlorophenol and 2,4‐dichlorophenoxyacetic acid (2,4‐D) was carried out. The prepared hydrogels which are composed of individual radiation grafting of methacrylic acid onto CMC to form poly(CMC/MAA) the other hydrogel composed of binary acrylamide/methacrylic

In this work, effect of three factors on the phase morphology and mechanical properties of ternary blends based on polystyrene (PS)/ethylene‐propylene‐diene terpolymer (EPDM)/polyamide6 (PA6) was investigated by response surface methodology (RSM). Results indicated that among the studied factors (i.e., mixing sequence, composition, and viscosity ratio of the minor phases), the first two have the greatest

Nano‐Sb2O3 particles were modified by a combination modifier of cetyltrimethyl ammonium bromide (CTAB) and KH‐560 via the mechanochemical method based on high‐energy ball milling. Then, the testing specimens of the nano‐Sb2O3/PBT composites of differing compositions were prepared by melting blending technology. The crystallization, thermal, and mechanical properties of composites were characterized

New sulfadiazine tin complexes were synthesized in 67–80% yields from the reaction of sulfadiazine, and different organotin(IV) chlorides and their structures were established. The synthesized complexes were used as additives at a low concentration (0.5% by weight) to enhance poly(vinyl chloride) (PVC) photostability. The PVC samples containing sulfadiazine tin complexes (thickness = 40 μm) were fabricated

Room temperature vulcanized silicone rubber (RTVSR) nanocomposites were prepared by mixing of surface‐modified montmorillonite nanoclay or nano fumed silica, or both of them with RTVSR to improve thermal stability, electrical insulation, and flame retardant. Their tensile strength, elongation, swelling, and solubility properties at different doses of gamma radiation were investigated to study the effect

In this study, we analyze the rheological properties of epoxy/polypyrrole/carbon black coating and its performance as electromagnetic interference shielding efficiency (EMI SE). For this purpose, a commercial epoxy coating was mixed with a conductive polymer, namely polypyrrole. Rheological tests were performed to obtain the flow curve, the storage and loss moduli, the cure time and thixotropic characteristics

Broad‐temperature‐range (−85.4 to 96.2 °C) damping material was fabricated by blending amorphous styrene‐butadiene‐styrene triblock copolymer (SBS) with semicrystalline syndiotactic 1,2‐polybutadiene (s‐PB). According to dynamic mechanical thermal analysis (DMTA) analysis, SBS/s‐PB blends exhibited three consecutive damping peaks at −85.4, 2.7, and 96.2 °C. The peaks at −85.4 and 96.2 °C were associated

Bio‐waste materials such as eggshell (ES) and fishbone (FB) were used as new fillers compared with commercial calcium carbonate (CC) in natural rubber composite. The effect of their presence in the rubber mix on the rheometric study, morphology, mechanical properties, hardness, and abrasion resistance has been investigated at constant filler content (30 phr). The filler and their composites were characterized

The co‐kneader is a proper tool for processing polyvinyl chloride (PVC) compounds. Gelation of PVC is complex because of a narrow processing window. At low temperature, gelation is incomplete and leads to poor mechanical properties, while at high temperature, degradation may occur. The aim of this study is to gain a fundamental understanding of the gelation process of PVC in co‐kneaders. Careful examination

Ultraviolet absorbers and hindered amine light stabilizers are two kinds of efficient photostabilizers, which have different mechanisms. It is possible to make a synergistic interaction if introducing these two types of photostabilizing fragments into one molecule. In this article, two novel multifunctional photostabilizers UVH‐1 and UVH‐2 containing UVA and HALS fragments were synthesized from a