Abstract
The aim of this contribution is to investigate the possibility of using microcapsules containing waste cooking oil (microWCOs) in situ rejuvenating aged bitumen. MicroWCOs had been successfully fabricated by in situ polymerization using prepolymer of methanol melamine formaldehyde (MMF) as shell material. The properties of morphology, size, shell thickness and mechanical properties had been adjusted by the emulsion speed and core/shell ratios. It was found that MicroWCOs had thermal stability in melting bitumen and survived during repeated temperature changes. Moreover, WCO can easily penetrate into age bitumen as a rejuvenator. The aged bitumen had a trance to recovery its virgin properties after rejuvenated including penetration value, softing point value, and viscosity value.
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