Effect Maleic Anhydride Polypropylene on Properties of Calcium Carbonate Filled Polypropylene/Ethylene Propylene Diene Terpolymer Composites

2013 ◽  
Vol 594-595 ◽  
pp. 770-774 ◽  
Author(s):  
Husseinsyah Salmah ◽  
A. Siti Rohana ◽  
Hussin Kamarudin
Keyword(s):  
Tensile Strength ◽  
Calcium Carbonate ◽  
Maleic Anhydride ◽  
Modulus Of Elasticity ◽  
Sem Analysis ◽  
Inorganic Filler ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
The Matrix ◽  
Ethylene Propylene Diene Terpolymer

Inorganic filler, calcium carbonate (CaCO3) was used as filler in the polypropylene (PP)/ ethylene propylene diene terpolymer (EPDM) composites. The composites were compatibilized with Maleic anhydride grafted polypropylene (MAPP) in order to improve the properties. The addition of CaCO3 at has increased the modulus of elasticity of composites but tensile strength and elongation at break of uncompatibilized composites decreased with increasing CaCO3. The result shows that the compatibilized composites higher tensile strength and Modulus of elasticity but lower elongation at break compared to uncompatibilized composites. At 10 wt% CaCO3 showed higher tensile strength of uncompatibiled and compatibilized composites. The morphology study from SEM analysis reveals that compatibilized composites show better interfacial adhesion between the filler and the matrix. The addition of MAPP has improved crystallinity of compatibilized composites.

Thermoplastic Olefin/Clay Nanocomposites. Effect of Matrix Composition, and Organoclay and Compatibilizer Structure on Morphology/Properties Relationships

2007 ◽  
Vol 7 (12) ◽  
pp. 4456-4464 ◽  
Author(s):  
S. M. L. Silva ◽  
M. A. López-Manchado ◽  
M. Arroyo
Keyword(s):  
Maleic Anhydride ◽  
Thermal Characteristics ◽  
Interlayer Spacing ◽  
Matrix Composition ◽  
Clay Nanocomposites ◽  
Ethylene Propylene ◽  
Rubber Blends ◽  
Noticeable Increase ◽  
The Matrix ◽  
Ethylene Propylene Diene Terpolymer

The effect of different nanofillers and compatibilizers (maleic anhydride-grafted-polypropylene and maleic anhydride-grafted-ethylene propylene diene terpolymer rubber) on the morphology, mechanical, mechanodynamical and thermal characteristics of thermoplastic olefins based on polypropylene and ethylene propylene diene terpolymer rubber blends has been analysed. A better affinity with the matrix and a better dispersion of the nanoparticles is observed in rubber rich matrices. Organoclay, such as Cloisite C15A and Cloisite C20A, treated with a non-polar surfactant give rise to intercalated nanocomposites, and the lower the concentration of surfactant (C20A) the most noticeable increase in interlayer spacing and consequently better properties in the nanocomposites. The maleic anhydride-grafted-ethylene propylene diene terpolymer rubber is a better compatibilizer for organo-clay nanocomposites based on rubber rich matrices.

Injection Molding of PP/CaCO3 Hybrid Composites Toughened with SEBS-g-MA Elastomer: Morphological and Tensile Properties

2013 ◽  
Vol 550 ◽  
pp. 57-62
Author(s):  
Mounir El Achaby ◽  
El Mokhtar Essassi ◽  
Abou El Kacem Qaiss
Keyword(s):  
Tensile Strength ◽  
Calcium Carbonate ◽  
Maleic Anhydride ◽  
Injection Molding ◽  
Tensile Properties ◽  
Interfacial Adhesion ◽  
Hybrid Composites ◽  
Particle Dispersion ◽  
Elongation At Break ◽  
Butadiene Styrene

The aim of this work is to prepare, by extrusion, blends of polypropylene (PP)/styrene-ethylene-butadiene-styrene-g-maleic anhydride (SEBS-g-MA) at the ratios of 100/0, 95/5, 90/10, 85/15 80/20. Then, a amount of 10 wt% of calcium carbonate (CaCO3) was added to each polymer blend to prepare (PP/SEBS-g-MA)/CaCO3 composites with effective ratios of (100/0)/10 (95/5)/10, (90/10)/10, (85/15)/15 and (80/20)/10. Morphological and tensile properties of PP/SEBS-g-MA, PP/CaCO3 and (PP/SEBS-g-MA)/ CaCO3 were evaluated and compared. It was found that the presence of SEBS-g-MA improves the particle dispersion and interfacial adhesion. The tensile properties of PP polymer were affected by addition of SEBS-g-MA and/or CaCO3. Indeed, the addition of only SEBS-g-MA the youngs modulus and tensile strength of PP were remarkably decreased and the elongation at break was significantly increased. In contrast, the PP/ CaCO3 composites shows improved youngs modulus and tensile strength and reduced elongation at break in regard to neat PP. A balance between these selected properties was found in (PP/SEBS-g-MA)/CaCO3 composites, while the youngs, tensile strength and elongation at break were together increased. .

The Influence of CB, Silica and CaCO3 on Tensile and Morphological Properties of vPE/rPE/EPDM Blends

2013 ◽  
Vol 594-595 ◽  
pp. 808-811
Author(s):  
Hanafi Ismail ◽  
N.Z. Noimam ◽  
Woon Hon Wei ◽  
Muhammad Ridhwan Jamalul Nasir
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Tensile Properties ◽  
Morphological Properties ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
Recycled Polyethylene ◽  
Ethylene Propylene Diene Terpolymer ◽  
Scanning Electron

The virgin polyethylene (vPE) and recycled polyethylene (rPE) was melt blended with ethylene propylene diene terpolymer (EPDM) in different ratio by using a Haake Rheomix at 180°C and 50 rpm were prepared. The characterization such as tensile properties and morphology were examined. Results indicated that, the tensile strength and youngs modulus of vPE/rPE/EPDM with CB show the highest value compared to silica and CaCO3 except for elongation at break. The scanning electron microscopy (SEM) studies proved that, better dispersion and less agglomeration of CB and silica filled particles as compared to the CaCO3.

The Influence of CB, Silica and CaCO3 on Tensile and Morphological Properties of vPE/rPE/EPDM Blends

2013 ◽  
Vol 844 ◽  
pp. 338-341
Author(s):  
Hanafi Ismail ◽  
N.Z. Noimam ◽  
Woon Hon Wei ◽  
Muhammad Ridhwan Jamalul Nasir
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Tensile Properties ◽  
Morphological Properties ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
Recycled Polyethylene ◽  
Ethylene Propylene Diene Terpolymer ◽  
Scanning Electron

The virgin polyethylene (vPE) and recycled polyethylene (rPE) was melt blended with ethylene propylene diene terpolymer (EPDM) in different ratio by using a Haake Rheomix at 180°C and 50 rpm were prepared. The characterization such as tensile properties and morphology were examined. Results indicated that, the tensile strength and youngs modulus of vPE/rPE/EPDM with CB show the highest value compared to silica and CaCO3 except for elongation at break. The scanning electron microscopy (SEM) studies proved that, better dispersion and less agglomeration of CB and silica filled particles as compared to the CaCO3.

FOAMING AND MOISTURE CROSSLINKING OF VINYL TRIETHOXY SILANE GRAFTED ETHYLENE–PROPYLENE–DIENE TERPOLYMER

2022 ◽  
Author(s):  
Zhengwei Lin ◽  
Qinghong Zhang ◽  
Gongliang Wang ◽  
Jie Mao ◽  
Martin Hoch ◽  
...  
Keyword(s):  
High Efficiency ◽  
Low Cost ◽  
Side Reaction ◽  
High Energy ◽  
Expansion Ratio ◽  
Ethylene Propylene ◽  
Foaming Process ◽  
The Matrix ◽  
High Energy Absorption ◽  
Ethylene Propylene Diene Terpolymer

ABSTRACT Moisture crosslinking of polyolefins has attracted increasing attention because of its high efficiency, low cost, and easy processing. However, the crucial shortcoming of moisture crosslinking is that the side reaction of peroxide scorch (precrosslinking) simultaneously occurs in silane grafting. It has been recognized that making peroxide precrosslinking useful is an effective way to broaden the application of moisture crosslinking. A novel foaming process combined with moisture crosslinking is proposed. The matrix of ethylene–propylene–diene terpolymer grafted with silane vinyl triethoxysilane (EPDM-g-VTES) was prepared by melt grafting, with dicumyl peroxide as initiator. Foaming was then carried out with azodicarbonamide (AC) as the blowing agent by making use of precrosslinking. Subsequently, the EPDM-g-VTES foams were immersed in a water bath to achieve moisture crosslinking with dibutyl tin dilaurate as the catalyst. The results showed that VTES was grafted onto EPDM and the EPDM-g-VTES foams were successfully crosslinked by moisture. The EPDM-g-VTES compounds with AC obtained great cells by compression molding with the help of precrosslinking. The mechanical property of the EPDM-g-VTES foam was improved by moisture crosslinking. The moisture-cured foam with 4 wt% AC had an expansion ratio of about three times, which could bear large deformation and showed a high energy-absorption effect.

Thermal, structural, and mechanical effects of nanofibrillated cellulose in polylactic acid filaments for additive manufacturing

BioResources ◽  
2020 ◽  
Vol 15 (4) ◽  
pp. 7954-7964
Author(s):  
Diego Gomez-Maldonado ◽  
Maria Soledad Peresin ◽  
Christina Verdi ◽  
Guillermo Velarde ◽  
Daniel Saloni
Keyword(s):  
Tensile Strength ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Polylactic Acid ◽  
Modulus Of Elasticity ◽  
Manufacturing Process ◽  
Thermal Characterization ◽  
Nanofibrillated Cellulose ◽  
Small Decrease ◽  
The Matrix

As the additive manufacturing process gains worldwide importance, the need for bio-based materials, especially for in-home polymeric use, also increases. This work aims to develop a composite of polylactic acid (PLA) and nanofibrillated cellulose (NFC) as a sustainable approach to reinforce the currently commercially available PLA. The studied materials were composites with 5 and 10% NFC that were blended and extruded. Mechanical, structural, and thermal characterization was made before its use for 3D printing. It was found that the inclusion of 10% NFC increased the modulus of elasticity in the filaments from 2.92 to 3.36 GPa. However, a small decrease in tensile strength was observed from 55.7 to 50.8 MPa, which was possibly due to the formation of NFC aggregates in the matrix. This work shows the potential of using PLA mixed with NFC for additive manufacturing.

scholarly journals Aging Mechanisms and Monitoring of Cable Polymers

2020 ◽  
Vol 6 (3) ◽  
Author(s):  
Nicola Bowler ◽  
Shuaishuai Liu
Keyword(s):  
Nuclear Power ◽  
Low Voltage ◽  
Capacitive Sensor ◽  
Dissipation Factor ◽  
Elongation At Break ◽  
Ethylene Propylene ◽  
Aging Mechanisms ◽  
Nondestructive Measurements ◽  
Ethylene Propylene Diene Terpolymer

Aging mechanisms of two polymeric insulation materials that are used widely in nuclear power plant low-voltage cables; cross-linked polyethylene (XLPE) and ethylene propylene rubber/ethylene propylene diene terpolymer (EPR/EPDM), are reviewed. A summary of various nondestructive methods suitable for evaluation of cable insulation is given. A capacitive sensor capable of making local nondestructive measurements of capacitance and dissipation factor on cable polymers, and potentially suitable for in situ cable monitoring, is introduced.Correlating values of elongation-at-break, indenter modulus, capacitance and dissipation factor measured on a set of 47 aged flame-resistant EPR samples shows a higher correlation between indenter modulus and dissipation factor than between indenter modulus and elongation-at-break.

Studies on the Mechanical Properties of Foam CB-PVC Composite

2013 ◽  
Vol 681 ◽  
pp. 256-259
Author(s):  
Xiu Qi Liu ◽  
He Qin Xing ◽  
Li Li Zhao ◽  
Dan Wang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Mechanical Index ◽  
Melt Blending ◽  
Elongation At Break ◽  
Foam Composite ◽  
The Matrix ◽  
System Prototype ◽  
Made In

In our study, a new kind of foam composite was prepared by melt blending with PVC as the matrix and carbon black (CB) as the filler, the standard-spline was made in the dumbbell system prototype. Tensile strength and elongation at break were measured at 25°C。When the CB was added greater than 2.0%, with the increase of CB added, the determination of sample mechanical index began to decline, when the CB content was greater than 9%, tensile strength and elongation at break of the composites remained basically unchanged.

Development of Alginate Based Active Films Containing Turmeric Essential Oil

2020 ◽  
Vol 861 ◽  
pp. 378-382
Author(s):  
Sophoan Phal ◽  
Muhammad Rafiullah Khan ◽  
Pattarin Leelaphiwat ◽  
Vanee Chonhenchob
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Water Vapor ◽  
Essential Oil ◽  
Sem Analysis ◽  
Film Properties ◽  
Elongation At Break ◽  
Control Film ◽  
Scanning Electron

Sodium alginate based films containing turmeric oil (TEO) at different concentrations (1, 2 and 3%) were developed. The film with no TEO was used as control. Incorporation of TEO had the effects on the film properties. With increasing TEO concentrations, thickness, elongation at break, permeability of oxygen and water vapor of the films significantly (p ≤ 0.05) increased. Whereas moisture content, tensile strength and modulus of elasticity significantly (p ≤ 0.05) decreased. Scanning electron microscopy (SEM) analysis showed more numerous pores and rougher surface of the antifungal films than the control film.

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