Ultrasound-assisted permeability improvement and acoustic characterization for solid-state fabricated PLA foams

• Published in: Ultrasonics sonochemistry Vol. 20; no. 1; pp. 137 - 143
• Main Authors: Guo, Gepu, Ma, Qingyu, Zhao, Bo, Zhang, Dong
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 01.01.2013; Elsevier
• Subjects: Acoustic characterization; Biocompatible Materials - chemistry; Biocompatible Materials - metabolism; Chemistry; Colloidal state and disperse state; Emulsions. Microemulsions. Foams; Exact sciences and technology; General and physical chemistry; Lactic Acid - chemistry; Lactic Acid - metabolism; Permeability; Permeability improvement; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Polyesters; Polymers - chemistry; Polymers - metabolism; Power ultrasound radiation; Solid-state foamed PLA foams; Tissue Engineering; Ultrasonic chemistry; Ultrasonics - methods; Acoustic characterization; Solid-state foamed PLA foams; Permeability improvement; Power ultrasound radiation; Sonochemistry; Saturation; Permeability; Characterization; Solid state; Acoustic properties; Foam; Substitution; Technology; Attenuation coefficient; Ultrasound

► An ultrasound-assisted permeability improvement technology is proposed. ► Pulsed power ultrasound is employed to enhance the interconnectivity for PLA foams. ► An insert-substitution acoustic testing approach for the PLA foams is developed. ► The attenuation coefficient decreases exponentially wit...