Polymer Journals

Polymers and Polymer Composites

Logged into APC, CP, IPSAT, PPC, PRR, RRR & PRPRT.

Back  Search



Title: FUNCTIONAL POLYMER NANOCOMPOSITES
Page Range: p.471-481
Author(s): Faupel F; Zaporojtchenko V; Strunskus T; Greve H; Schuermann U; Takele H; Hanisch C; Chakravadhanula V S K; Na Ni; Gerber A; Quandt E; Podschun R
File size: 474K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
A review is presented on the preparation of metal-containing polymer nanocomposite films via evaporation and sputtering and the functional properties thereof. Examples of optical, high frequency magnetic and antibacterial nanocomposites are included and the use of the electrical properties near the percolation threshold for sensing organic vapours and for photoswitching via the incorporation of chromophores is demonstrated. 66 refs.

Title: POLYHEDRAL OLIGOMERIC SILSESQUIOXANE (POSS)-MODIFIED THERMOPLASTIC AND THERMOSETTING NANOCOMPOSITES: A REVIEW
Page Range: p.483-500
Author(s): Jianqing Zhao; Yi Fu; Shumei Liu
File size: 258K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Investigations into the effects of POSS molecular geometry, composition and concentration on the physical and mechanical properties of POSS-modified thermoplastic and thermosetting nanocomposites are reviewed. Nanocomposites based on PE, PP, PVC, PS, PMMA, polycarbonate, PETP, poly-epsilon-caprolactone, polyamide-6, epoxy resins, polyimides, phenolic resins, PU and other polymers are covered. 117 refs.

Title: PREPARATION AND CHARACTERIZATION OF POLYURETHANE/MULTIWALLED CARBON NANOTUBE COMPOSITES
Page Range: p.501-507
Author(s): Shuzhong Guo; Chao Zhang; Weizhi Wang; Tianxi Liu; Wuiwui Chauhari Tjiu; Chaobin He; Wei-De Zhang
File size: 334K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Multiwalled carbon nanotube/PU nanocomposites were prepared by a combination of in-situ polymerisation and solvent casting and the morphologies of the nanotubes and nanocomposites and dispersion of nanotubes in the PU matrix investigated by TEM and field emission scanning electron microscopy. The thermomechanical properties, heat stability and tensile properties of the nanocomposites were also investigated and compared with those of neat polyurethane. Nanocomposites with significantly enhanced Young's modulus, stress at break and elongation at break and a strong interfacial adhesion between the nanotubes and matrix were obtained. 32 refs.

Title: THE STUDY ON THE MICROSTRUCTURES AND HIGH PERFORMANCES OF MELT BLENDING POLYURETHANE/MULTI-WALLED CARBON NANOTUBES COMPOSITES
Page Range: p.509-518
Author(s): Fengdan Jiang; Sizhu Wu; Yongji Wei; Liqun Zhang; Guohua Hu
File size: 358K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Nanocomposites based on thermoplastic PU and up to 40 phr of unmodified, multiwalled carbon nanotubes were prepared by a simple melt blending process. The morphological, structural and mechanical properties of the nanocomposites were investigated by scanning electron microscopy, TEM, DSC, X-ray diffraction, DMTA and tensile testing. The thermal and electrical conductivities of the nanocomposites were also investigated and the influence of the nanotubes on nanocomposite properties evaluated. 45 refs.

Title: POLYCARBONATE-CARBON NANOFIBERS COMPOSITES: AN ELECTRON SPIN RESONANCE STUDY
Page Range: p.519-526
Author(s): Chipara M; Brittain W J; Kin-Tak Lau; Chipara M D
File size: 305K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Polycarbonate was loaded with from 0 to 10% of carbon nanofibres and the resulting nanocomposites studied by ESR spectroscopy. A complex resonance spectrum was recorded and assigned to the convolution of resonance lines originating from the conducting electrons delocalised over the metallic domains of the nanotubes, free radicals generated during polymer processing and catalyst traces. A qualitative correlation between the dependence of the ESR line width on loading with carbon nanofibres and the dependence of DC electrical conductivity on loading with carbon nanofibres was observed and considered of use for assessing the conductivity of the nanocomposites. 39 refs.

Title: TAILORING THE MECHANICAL PERFORMANCE OF EPOXY RESIN BY VARIOUS NANOPARTICLES
Page Range: p.527-533
Author(s): Sheng Liu; Hui Zhang; Zhong Zhang; Taihua Zhang; Sprenger S
File size: 539K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Flexible organic elastomeric nanoparticles and two kinds of rigid inorganic silica nanoparticles were dispersed into a Bisphenol A epoxy resin by mechanical mixing or the in-situ sol-gel technique. The morphological properties of the nanocomposites were characterised by TEM and scanning electron microscopy and the tensile properties and fracture toughness of the nanocomposites determined. It was found that the elastomeric nanoparticles significantly enhanced the toughness of the resin and rigid silica nanoparticles improved Young's modulus, tensile strength and fracture toughness simultaneously. Both fumed and sol-gel-formed nanosilica particles reinforced the epoxy resin and the nanosilica particles dispersed almost perfectly in the epoxy matrix. 17 refs.

Title: EFFECT OF CLAY MODIFICATION ON PHOTO-OXIDATION OF POLYETHYLENE/CLAY NANOCOMPOSITES
Page Range: p.535-546
Author(s): Zhongzhong Qian; Shimin Zhang; Mingshu Yang
File size: 481K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
Low density PE/nanocomposites were prepared using various modified clays, including silane grafted, ammonium intercalated and silane grafted and ammonium intercalated clays, and the effect of clay modification on the photooxidation of the nanocomposites exposed to UV light investigated by means of IR spectroscopy. The effect of photooxidation behaviour on the crystallisation and morphology of the nanocomposites was also investigated by DSC and scanning electron microscopy and the influence of dispersion and orientation structure on the clays in the polymer matrix assessed. 39 refs.

Title: ORGANOPHILIC LAYERED SILICATE MODIFIED VINYLESTER-URETHANE HYBRID RESINS: STRUCTURE AND PROPERTIES
Page Range: p.547-554
Author(s): Corobea M-C; Donescu D; Grishchuk S; Castella N; Apostolov A A; Karger-Kocsis J
File size: 398K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
A commercial vinyl ester-urethane resin was modified with various amounts of organophilic layered silicates and the effects of the organophilic layered silicates, including their modifiers, on the structure and properties of the resulting nanocomposites investigated. Organophilic intercalants employed were trimethyl dodecylamine and octadecylamine-N,N-bis(allyl(2-hydroxypropyl)ether). The results are discussed in terms of organophilic layered silicate intercalation, DMTA behaviour, fracture mechanics, failure behaviour, water absorption and diffusion coefficients. 14 refs.

Title: NEW EQUIPMENT AND APPROACHES FOR FABRICATION OF UNIFORMLY-DISPERSED NANOCLAY CLUSTER/EPOXY COMPOSITES
Page Range: p.555-560
Author(s): Mo-Lin Chan; Kin-Tak Lau; Mei-Po Ho; Cheng A; Tsun-Tat Wong
File size: 186K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
A novel experimental set-up for mixing nanoclay and epoxy resin together to form uniformly-dispersed nanosized nanoclay cluster/epoxy composites is described and conditions (spinning, cure time and temperature) established for producing composites containing 5 wt.% of nanoclay with enhanced microhardness. 7 refs.

Title: MODELING THE EFFECT OF STRAIN RATE ON THE MECHANICAL PROPERTIES OF HDPE/CLAY NANOCOMPOSITE FOAMS
Page Range: p.561-575
Author(s): Choonghee Jo; Naguib H E
File size: 808K
Download the pdf (subscribers only)
Buy the pdf (non-subscribers)
Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.8

Abstract
An investigation was carried out into the effects of strain rate and crystallinity on the mechanical properties of HDPE/clay nanocomposite microcellular foams fabricated by a batch foaming process. Intercalated clay structures in the nanocomposites were studied by TEM and crystallinity determined by differential scanning calorimetry. Foam morphology was characterised by scanning electron microscopy and mechanical properties determined by uniaxial tensile testing. A constitutive model, which considers the combined effects of strain rate and crystallinity on the tensile behaviour of the foams, was derived and validated experimentally. 52 refs.

%>