Synergistic effect of oil palm ash filled natural rubber compound at low filler loading

2013 ◽  
Vol 32 (1) ◽  
pp. 38-44 ◽  
Author(s):  
Zhong Xian Ooi ◽  
H. Ismail ◽  
A. Abu Bakar
Keyword(s):  
Synergistic Effect ◽  
Natural Rubber ◽  
Oil Palm ◽  
Filler Loading ◽  
Rubber Compound ◽  
Oil Palm Ash

Utilization of oil palm ash as an reinforcing filler in natural rubber biocomposites

2017 ◽  
Author(s):  
Chutarat Malawet ◽  
Methakarn Jarnthong ◽  
Punyanich Intharapat ◽  
Lusheng Liao ◽  
Fuquan Zhang ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Oil Palm ◽  
Oil Palm Ash ◽  
Reinforcing Filler

Optimisation of oil palm ash as reinforcement in natural rubber vulcanisation: A comparison between silica and carbon black fillers

2013 ◽  
Vol 32 (4) ◽  
pp. 625-630 ◽  
Author(s):  
Zhong Xian Ooi ◽  
Hanafi Ismail ◽  
Azhar Abu Bakar
Keyword(s):  
Carbon Black ◽  
Natural Rubber ◽  
Oil Palm ◽  
Oil Palm Ash

Curing Characteristics and Mechanical Properties of Rattan Filled Natural Rubber Compounds

2011 ◽  
Vol 471-472 ◽  
pp. 845-850 ◽  
Author(s):  
Komethi Muniandy ◽  
Hanafi Ismail ◽  
Nadras Othman
Keyword(s):  
Natural Rubber ◽  
Tensile Modulus ◽  
Filler Loading ◽  
Morphological Properties ◽  
Rubber Matrix ◽  
Rubber Compound ◽  
Curing Characteristics ◽  
Roll Mill ◽  
Cure Time ◽  
Rubber Filler

Rattan for its potential as a new type of filler was investigated in natural rubber (NR) compounds. Natural rubber (NR) compounds were prepared by the incorporation of rattan at different loadings into a natural rubber matrix with a laboratory size two roll mill. The effect of rattan loading as filler on curing characteristics, tensile properties, morphological properties using scanning electron microscopy (SEM) and rubber–filler interaction of rattan filled natural rubber compound were studied in the filler loading range of 0 to 30 phr. The results indicate that the scorch time (ts2) and cure time (t90) shorten with increasing filler loading, whereas the maximum torque (MH) showed an increasing trend. As the filler loading increases, the tensile strength and elongation at break decreases whilst tensile modulus; stress at 100 % elongation and stress at 300 % elongation increased. The rubber filler interactions of the rubber compound decreased with increasing filler loading. SEM studies indicate that the increasing rattan loading weakens the rubber-rattan interactions.

Effect of Natural Antioxidants on Curing Characteristics and Crosslink Density of Natural Rubber Vulcanisate

2012 ◽  
Vol 626 ◽  
pp. 366-371 ◽  
Author(s):  
N.H.H. Shuhaimi ◽  
N.S. Ishak ◽  
Nadras Othman ◽  
Hanafi Ismail ◽  
S. Sasidharan
Keyword(s):  
Natural Rubber ◽  
Oil Palm ◽  
Crosslink Density ◽  
Natural Antioxidants ◽  
Comparable Result ◽  
Natural Antioxidant ◽  
Rubber Compound ◽  
Curing Characteristics ◽  
Before And After ◽  
Cure Characteristic

Oil palm leaves is a waste material. Phenolic compound was extracted from oil palm leaves and know as natural antioxidant that could possibly used in natural rubber compound. The present study involves the effect of natural antioxidants that obtained from oil palm leaves on cure characteristics and crosslink density of natural rubber vulcanisate. The natural rubber had been cured at 160°C in three different vulcanization systems which were conventional (CV), efficient (EV) and semi-efficient (SEV). The cure characteristic was been conducted by using Mosanto Rheometer at 160°C for 30 minutes. For swelling test, the specimens were immersed in toluene solvent for 22 hours. The specimens were weighed before and after immersed. CV system showed better result in M90and curing rate due to higher degree of crosslinking as compared to SEV and EV system. Meanwhile, EV and SEV system showed comparable result in crosslink density with CV system. This is due stronger bonding between monosulphide crosslink. Finally, the results indicated that natural antioxidant has a tendency to substitute commercial antioxidant (TMQ) in the rubber field.

Cure Characteristics and Physical Properties of Imperata cylindrica Activated Carbon Filled SMR L Compounding

2015 ◽  
Vol 815 ◽  
pp. 44-48
Author(s):  
M.H. Fatin ◽  
N.Z. Noriman ◽  
Kamarudin Husin ◽  
M.Z. Salihin ◽  
N.R. Munirah ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Natural Rubber ◽  
Physical Properties ◽  
Crosslink Density ◽  
Filler Loading ◽  
Rubber Compound ◽  
Maximum Torque ◽  
Cure Characteristics ◽  
Cure Time ◽  
Minimum Torque

The potential of activated carbon as a filler in rubber compound has been reviewed .Cure characteristics and physical properties ofImperataCylindricaactivated carbon filled natural rubber of Standard Malaysian Rubber (SMR L) were studied. SMR L was used as the elastomer and the composition of filler loading were varied from 0-50 parts per hundred rubber (phr). A semi-efficient vulcanization system was used throughout the study. The cure characteristics of the rubber compound was determined by using rheometer. The samples of hardness and resilience were measured by durometer shore A and Wallace Dunlop Tripsometer. Cure characteristics showed that cure time, t90and scorch time,t2increased as increased filler loading which indicate poor interaction between rubber and filler which slow down the vulcanization time. Minimum torque,MLand maximum torque,MHincreased as increased filler loading due to the low processability of the SMR L compounds. Crosslink density and hardness exhibit increment as increased filler loading due to increase rigidity of the SMR L compounds. The resilience will decrease correspondingly as increased in rigidity of the compounds.

scholarly journals Preparation and Characterization of Ultra-Fine Oil Palm Ash Powder by Ultrasonication and Alkaline Treatment for Its Evaluation as Reinforcing Filler in Natural Rubber

Polymers ◽  
2020 ◽  
Vol 13 (1) ◽  
pp. 100
Author(s):  
Methakarn Jarnthong ◽  
Chutarat Malawet ◽  
Lusheng Liao ◽  
Puwang Li ◽  
Zheng Peng ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Particle Size ◽  
Natural Rubber ◽  
Oil Palm ◽  
Average Particle Size ◽  
Alkaline Treatment ◽  
Bet Surface Area ◽  
Average Particle ◽  
Naoh Solution ◽  
Oil Palm Ash

Ultra-fine oil palm ash (OPA) particles were successfully prepared using ultrasonication along with optimal chemical deagglomeration. The influence of chemical treatment by sodium hydroxide (NaOH) solution on the OPA particles was found to be an important factor in enhancing deagglomeration efficiency. The average particle size of the original OPA (41.651 μm) decreased remarkably more than 130 times (0.318 μm) with an obvious increase of Brunauer–Emmet–Teller (BET) surface area after treating the OPA with 3M NaOH, followed by ultrasonication for 30 min. The changes in particle size and surface morphology were investigated using transmission electron microscopy and scanning electron microscopy. Moreover, the chemical functional groups of the untreated and treated OPA showed different patterns of infrared spectra by the presence of sodium carbonate species owing to the effect of NaOH treatment. The incorporation of both untreated and treated OPA in natural rubber by increasing their loading can improve cure characteristics (i.e., reducing optimum cure time and increasing torques) and cure kinetic parameters (i.e., increasing the rate of cure and reducing activation energy). Nevertheless, the strength, degree of reinforcement, and thermal stability of treated OPA as well as wettability between treated OPA particles and NR were greater than that resulting from the untreated OPA.

Characterization of oil palm ash (OPA) and thermal properties of OPA-filled natural rubber compounds

2013 ◽  
Vol 47 (1) ◽  
pp. 13-27 ◽  
Author(s):  
Zhong Xian Ooi ◽  
Hanafi Ismail ◽  
Azhar Abu Bakar
Keyword(s):  
Thermal Properties ◽  
Natural Rubber ◽  
Oil Palm ◽  
Rubber Compounds ◽  
Oil Palm Ash
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