Regenerated thermosetting styrene-co-acrylonitrile sandwich composite panels reinforced by jute fibre: structures and properties

• Published in: Bulletin of materials science Vol. 39; no. 1; pp. 109 - 117
• Main Authors: LI, JINGLONG, PENG, QIN, ZENG, ANRONG, LI, JUNLIN, WU, XIAOLE, LIU, XIAOFEI
• Format: Journal Article
• Language: English
• Published: Bangalore, India Indian Academy of Sciences 01.02.2016; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Compressive strength; Dimethyl acetamide; Engineering; Fiber composites; Fibers; Flexural strength; Fourier transforms; Impact strength; Industrial wastes; Interfacial bonding; Jute; Materials Science; Mechanical properties; Nitrogen; Panels; Peel tests; Polyesters; Pressure molding; Recycling; Sodium hydroxide; Styrene acrylonitrile resins; Styrenes; Temperature; Tensile strength; Water absorption; China; Japan; thermosetting SAN; mechanical property; regeneration; Jute fibre composite; water absorption; fibre surface treatment
• ISSN: 0250-4707; 0973-7669
• DOI: 10.1007/s12034-015-1114-6

Jute fibres-reinforced sandwich regenerated composite panels were fabricated using industrial waste thermosetting styrene- co -acrylonitrile (SAN) foam scraps via compression moulding for the purpose of recycling waste SAN foam and obtaining high physical performance. The jute fibres were, respectively, treated by heat, sodium hydroxide (NaOH) solution (5.0 wt%), and N,N-dimethylacetamide (DMAc) in order to improve the mechanical properties of the composites. The structures and mechanical properties of the composites were studied. The SAN matrix got compact and some crystalline region formed in SAN matrix via compression moulding. The composite reinforced by DMAc-treated jute fibres performed optimum mechanical properties among the regenerated panels whose impact strength, flexural strength, and compressive strength were 19.9 kJ m −2 , 41.7 MPa, and 61.0 MPa, respectively. Good interfacial bonding between DMAc-treated fibres and SAN matrix was verified by peel test and exhibited in SEM photographs. Besides, the water absorption of DMAc-treated fibres composite was lower than other SAN/jute fibre-reinforced sandwich composite panels.