Mechanical and Morphological Properties of Sulfur-Cured Natural Rubber/Polyethylene/Epoxidized Natural Rubber Blends

2017 ◽  
Vol 757 ◽  
pp. 14-18
Author(s):  
Kritsada Phatcharasit ◽  
Wirach Taweepreda ◽  
Patompong Phummor
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Natural Rubber ◽  
Epoxidized Natural Rubber ◽  
Morphological Properties ◽  
Rubber Blends ◽  
Compression Set ◽  
Internal Mixer ◽  
Scanning Electron

The polymer blend was prepared from natural rubber (NR) and polyethylene (PE) powder blended with epoxidized natural rubber (ENR) by using an internal mixer. In this study, epoxidized natural rubber (ENR) was used as compatibilizer for the blends. Blending ENR with PE powder and NR were prepared at various compositions from 0-20% by weight. Then, specimens from the blends were produced by compression molding at 150 °C. The mechanical and morphological properties of the composites were investigated. It was found that the addition of ENR content has improved the tensile strength, compression set and hardness for the ternary compositions composed of NR/PE powder/ENR compared to the binary one (i.e. NR/PE powder). ENR contributed to a better dispersion between the NR and PE phases as observed in the scanning electron microscopy.

The Effect of Different Sizes "Batu Reput" (Dolomite) as a Filler in SMR L and ENR-50

2013 ◽  
Vol 795 ◽  
pp. 383-387 ◽  
Author(s):  
J.N.M. Ridhwan ◽  
N.Z. Noimam ◽  
M.A.A. Mohd Salleh ◽  
S.T. Sam ◽  
L. Musa ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Natural Rubber ◽  
Tensile Properties ◽  
Epoxidized Natural Rubber ◽  
Morphological Properties ◽  
Elongation At Break ◽  
Matrix Interaction ◽  
Scanning Electron

The effects of different sizes of Batu Reput (Dolomite) filler which are smaller size (<63μm) and bigger size (75-150μm) on tensile and morphological properties of Batu Reput (Dolomite) filled SMR L and epoxidized natural rubber (ENR-50) blends were investigated. Results indicated that, the tensile properties, such as tensile strength (TS), elongation at break (Eb) and stress at 100% elongation (M100) of Batu Reput (Dolomite) filled SMR L higher than Batu Reput (Dolomite) filled ENR-50 blends, particularly, at 15 phr of smaller size of Batu Reput (Dolomite). The scanning electron microscopy studies proved, Batu Reput (Dolomite) filled SMR L illustrated a higher Batu Reput (Dolomite) - SMR L matrix interaction compared with Batu Reput (Dolomite) filled ENR-50.

Electrospun Epoxidized Natural Rubber with Poly(vinyl chloride) (ENR-PVC) Nanofibrous for PEMFC Applications

2013 ◽  
Vol 844 ◽  
pp. 507-510 ◽  
Author(s):  
Kritsada Phatcharasit ◽  
Wirach Taweepreda ◽  
Kanoktip Boonkerd ◽  
Jin Kuk Kim
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Scanning Electron Microscopy ◽  
Natural Rubber ◽  
Vinyl Chloride ◽  
Epoxidized Natural Rubber ◽  
Electrospinning Technique ◽  
Poly Vinyl Chloride ◽  
Ft Ir ◽  
Scanning Electron

Various electrospun epoxized natural rubber / poly (vinyl chloride) (ENR/PVC) blend nonwoven membranes were prepared by electrospinning technique. Various concentration of epoxidized natural rubber (ENR) solution in N,N-dimethylformamide (DMF) were directly added to PVC solution for plasticization of the electrospun nanofibrous. Differencial thermal analysis (DTA), thermogravimetry analysis (TGA), fourier transfrom infrared spectroscopy (FT-IR), and scanning electron microscopy (SEM) were used to characterize the pristine and plasticized nanofibrous. DTA results indicated that the addition of ENR resulted in the shifting of glass transition temperature (Tg) towards lower temperatures. The blending of PVC with ENR is thermodynamically incompatible.

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.

scholarly journals Pengaruh filler carbon black terhadap sifat dan morfologi komposit natural rubber/polypropylene

2018 ◽  
Vol 9 (2) ◽  
pp. 62
Author(s):  
B Bahruddin ◽  
Ida Zahrina ◽  
Said Zul Amraini
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Carbon Black ◽  
Natural Rubber ◽  
Mass Fraction ◽  
Elongation At Break ◽  
Pp Blends ◽  
Internal Mixer ◽  
Curative Agent ◽  
Scanning Electron

The effect of carbon black (CB) filler content and mixing technique on tensile properties and morphology of vulcanized natural rubber/polypropylene (NR/PP) blends were studied. The blends were performed in an internal mixer with NR/PP mass ratio of 70/30. The filler was mixed with the blend by two ways. First, CB was mixed with NR in roll-mill before blending with PP in internal mixer and the second, CB, NR and PP were mixed together in internal mixer. The plasticizer and maleated polypropylene (MA-g-PP) compatibilizer were added at constant value with mass fraction of 2% and 5%, respectively. Sulfur was used as curative agent with composition of 3 per hundred rubbers (phr) for the dynamic vulcanization process. The mixing was conducted at 180 oC with the rotor speed of 60 rpm. The morphological study on cryogenically fractured samples was performed using scanning electron microscopy and differential scanning calorimetry. The tensile strength and elongation at break were measured by ISO 527-2 Type 5A standard. The results indicate that the addition of CB as filler could improve the morphology and the properties of the NR/PP blends significantly, especially at CB mass fraction of 30% and blending by first technique. At these condition, tensile strength and elongation at break were found to be 9,8 MPa and 413%, respectively. Keywords: natural rubber, thermoplastic elastomer, carbon black filler, tensile properties, morphology AbstrakPenelitian ini mempelajari pengaruh komposisi dan teknik penambahan filler carbon black (CB) terhadap sifat tensil dan morfologi campuran natural rubber/polypropylene (NR/PP). Sampel campuran disiapkan dengan menggunakan internal mixer pada rasio massa NR/PP 70/30. Filler ditambahkan ke dalam campuran NR/PP dengan komposisi 10%, 20% dan 30% massa. Penambahan filler dilakukan dengan dua cara, pertama dicampur dengan NR terlebih dahulu sebelum pencampuran NR dan PP, dan kedua dicampur bersama-sama NR dan PP dalam internal mixer. Ke dalam campuran juga ditambahkan plastisizer 2% massa dan kompatibilizer MA-g-PP sebesar 5% massa. Proses pencampuran menggunakan metode vulkanisasi dinamik pada suhu 180 oC dan kecepatan rotor 60 rpm. Sebagai curative agent digunakan sulfur dengan komposisi 3 phr (per hundred rubber). Sifat tensil campuran diukur menggunakan standar ISO 527-2 Tipe 5A. Morfologi campuran dianalisa menggunakan scanning electron microscopy. Diperoleh bahwa sifat tensil dan morfologi campuran terbaik diperoleh pada komposisi CB 30% menggunakan teknik pencampuran yang pertama. Pada kondisi tersebut; kuat tarik dan elongation at break campuran masing-masing adalah 9,8 MPa dan 413%.Kata kunci: natural rubber, termoplastik elastomer, filler carbon black, sifat tensil, morfologi

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.

scholarly journals STRUCTURES AND PROPERTIES OF NATURAL RUBBER/ORGANOCLAY NANOCOMPOSITES

2011 ◽  
Vol 14 (1) ◽  
pp. 30-38
Author(s):  
Hien Quang Pham ◽  
Son Thanh Thanh Do ◽  
Nieu Huu Nguyen
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Natural Rubber ◽  
Abrasion Resistance ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structures And Properties ◽  
Scanning Electron

Natural rubber (NR), 30% epoxidized natural rubber (ENR30) and organoclays (Nanomer I28E and I30E) are blended in Brabender. Dispersions of the organoclay in NR are investigated by X – ray diffraction (XRD) and scanning electron microscopy (SEM). The results revealed the increase of dispersion efficiency by the addition of ENR30 as a compatibilizer. The existence of organoclay I28E reduces the vulcanization time, while torque value increases slightly and mechanical properties (abrasion resistance, modulus M100, modulus M300, tensile strength, tear strength) are improved considerably.

Photoelectric Response of Self Assembled Films of Bacterio-Rhodopsin Purple Membrane Integrated on Silicon

2003 ◽  
Vol 774 ◽  
Author(s):  
D. Ricceri ◽  
G. Scicolone ◽  
O. Di Marco ◽  
S. Conoci ◽  
B. Pignataro ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Light Exposure ◽  
Scanning Force Microscopy ◽  
Purple Membrane ◽  
Morphological Properties ◽  
Force Microscopy ◽  
Scanning Force ◽  
Scanning Electron ◽  
Tungsten Lamp

AbstractBacterio-rhodopsin purple membrane (PM) thin films have been prepared by selfassembling (SA) technique. Morphological properties of the layers were inspected by Scanning Electron Microscopy (SEM) and Scanning Force Microscopy (SFM) highlighting the presence of densely packed PM films. Reflectance Uv-vis spectra on these films revealed the typical bR absorption at 570 nm. By using a tungsten lamp illuminations (250-350 mW) chopped at 0.5Hz, photoelectric responses were detected. Differential (light-on and light-off) photocurrent signals of up to 1 μA/cm2 were obtained upon light exposure.

scholarly journals Analysis of PLA Composite Filaments Reinforced with Lignin and Polymerised-Lignin-Treated NFC

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2174
Author(s):  
Diana Gregor-Svetec ◽  
Mirjam Leskovšek ◽  
Blaž Leskovar ◽  
Urška Stanković Elesini ◽  
Urška Vrabič-Brodnjak
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Glassy State ◽  
Nanofibrillated Cellulose ◽  
Dynamic Mechanical Properties ◽  
Initial Modulus ◽  
Surface Modified ◽  
Scanning Electron

Polylactic acid (PLA) is one of the most suitable materials for 3D printing. Blending with nanoparticles improves some of its properties, broadening its application possibilities. The article presents a study of composite PLA matrix filaments with added unmodified and lignin/polymerised lignin surface-modified nanofibrillated cellulose (NFC). The influence of untreated and surface-modified NFC on morphological, mechanical, technological, infrared spectroscopic, and dynamic mechanical properties was evaluated for different groups of samples. As determined by the stereo and scanning electron microscopy, the unmodified and surface-modified NFCs with lignin and polymerised lignin were present in the form of plate-shaped agglomerates. The addition of NFC slightly reduced the filaments’ tensile strength, stretchability, and ability to absorb energy, while in contrast, the initial modulus slightly improved. By adding NFC to the PLA matrix, the bending storage modulus (E’) decreased slightly at lower temperatures, especially in the PLA samples with 3 wt% and 5 wt% NFC. When NFC was modified with lignin and polymerised lignin, an increase in E’ was noticed, especially in the glassy state.

Sign in / Sign up

Export Citation Format

Share Document