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Applied Polymer Composites

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Title: EFFECT OF DIFFERENT CARBON NANOSTRUCTURES ON THE PROPERTIES OF NATURAL RUBBER NANOCOMPOSITES
Page Range: p.59-78
Author(s): Al-Hartomy O A; Al-Ghamdi A A; Farha Al Said A S; Dishovsky N; Rossitsa Shtarkova; Vladimir Iliev
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 2
Issue No: No.2

Abstract
Natural rubber (NR) based nanocomposites with different fillers (fullerene, carbon nanotubes (CNT) and graphene (GNP)) in concentrations from 2 to 10 phr have been prepared. Their coefficients of absorption and reflection of the electromagnetic waves and electromagnetic interference shielding effectiveness have been investigated in the 1-12 GHz frequency range. The high conductivity, small diameter, high aspect ratio, and high electrical and thermal conductivity of studied carbon nanofillers make them an excellent option to create conductive composites for high-performance EMI shielding materials in the frequency range 1-7 GHz at low filling concentration. 58 Refs.

Title: POLYPHOSPHAZENE COATED MULTI WALL CARBON NANOTUBES REINFORCED POLYCHLOROPRENE NANOCOMPOSITES
Page Range: p.79-84
Author(s): Singh Y P; Pratibha Singh; Pandey K N; Vishal Verma; Vijai Kumar
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 2
Issue No: No.2

Abstract
Polyphosphazene coated MWCNT reinforced polychloroprene rubber (CR) based nanocomposites with a sulphur/accelerator vulcanisation system at 150 deg C have been processed. 0.3 weight% reinforcement imparts some good properties. Scanning electron microscopy (SEM) indicates that the coated MWCNT's are dispersed with enhanced reinforcement/rubber adhesion. Composites showed higher mechanical properties compared to the matrix. TGA thermograms show some enhancement in the thermal stability of the composites as compared to the polychloroprene matrix. 4 Refs.

Title: MODIFIED NANO-CACO3 REINFORCED TERNARY BLEND BASED BLOWN FILMS OF LLDPE/LDPE/PLA/MA-G-PE
Page Range: p.85-96
Author(s): Rahul Kumar; Pradeep Upadhyaya; Navin Chand
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 2
Issue No: No.2

Abstract
Ternary blend system of linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and poly lactic acid (PLA) compatibilised with maleic anhydride grafted polyethylene (MA-g-PE) has been reinforced by chemically modified nano calcium carbonate (nano-CaCO3). The mechanical, optical, thermal and morphological properties of the reinforced ternary blend have been evaluated. Mechanical properties are superior at 1 phr of nano-CaCO3 filler, except elongation at break and burst strength. Optical properties study indicates that haze and transmittance have been affected due to the nucleating effect of nano-CaCO3 on the matrix. SEM micrographs show reasonably well bonding between the matrix and the reinforcement material. 9 Refs.

Title: THERMAL PROPERTIES OF JUTE FIBER REINFORCED CHEMICALLY FUNCTIONALIZED HIGH DENSITY POLYETHYLENE (JF/CFHDPE) COMPOSITES DEVELOPED BY PALSULE PROCESS
Page Range: p.97-108
Author(s): Anshu Anjali Singh; Sanjay Palsule
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 2
Issue No: No.2

Abstract
Jute fibre reinforced chemically functionalised high density polyethylene composites developed by Palsule process, without using any compatibiliser, and without any fibre treatment exhibit good thermal stability. The initiation of degradation of the JF/CF-HDPE composites is at temperatures intermediate between those of temperatures of initiation of degradation of the fibre and the matrix. The maximum degradation temperature of all the composite compositions are higher that of the matrix, and increase with increasing Jute fibre content. The temperatures of highest rate of degradation of 10/90, 20/80 and 30/70 JF/ CF-HDPE composites are 483 deg C, 485 deg C and 488 deg C respectively, and at 550 deg C the composite compositions show the residual mass of 4.3%, 5.8% and 7% respectively.22 Refs.

Title: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES OF COCONUT FIBER REINFORCED POLYPROPYLENE COMPOSITES WITH 2% MAPP AS A COMPATIBILIZER
Page Range: p.109-118
Author(s): Anshu Anjali Singh; Priyanka Biswas; Kishor Biswas
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Journal: Applied Polymer Composites
Issue Year: apc
Volume: 2
Issue No: No.2

Abstract
Coconut fibres reinforced polypropylene composites processed by extrusion with 2% MAPP - maleic anhydride grafted polypropylene as compatibiliser show about 10 to 20% improved tensile strength and tensile modulus as compared to that of the polypropylene matrix due to fibre/matrix interfacial adhesion resulting from compatibilising effect of MAPP. Scanning electron microscopy shows coconut fibres deeply embedded in polypropylene matrix with good interfacial adhesion. The melting temperatures of the CNF/PP composites are same as that of PP and are around 170 deg C. 14 Refs.

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