Effect of Free fatty Acid Added in Palm Oil on Viscosity, Cure Characteristics and Mechanical Properties of Carbon Black Filled Natural Rubber Compounds
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Abstract
This research studied the carbon black filled natural rubber (NR) incorporated with palm oil contained free fatty acid (oleic acid added of 15% by palm oil weight) or stearic acid as activators were developed and characterized. The effects of the palm oil and stearic acid content (1–7 phr (part per hundred of rubber)) on the advanced natural rubber compounds’ properties were determined by measuring the Mooney viscosities, the scorch time, the curing time, 300% modulus, tensile strength, as well as elongation at break. It was found that the Mooney viscosities of the rubber compound with steric acid were lower than the compound with palm oil while the scorch time and the curing time were longer. As the stearic acid and palm oil in compound increased, elongation at break increased but 300% modulus and tensile strength of vulcanizes trended to decrease. The compound with 3 phr of palm oil displayed good cure and mechanical properties such as 8.15±0.3 minutes of cure time and 24.92±0.4 of tensile strength.
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ลิขสิทธ์ ของมหาวิทยาลัยเทคโนโลยีราชมงคลพระนครReferences
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