Characterization of Fiber Reinforced Plastics Made from Aramid and Phenol Resin or Furan Resin

• Published in: KOBUNSHI RONBUNSHU Vol. 59; no. 1; pp. 51 - 56
• Main Authors: KAWAMURA, Kazuro, OZAWA, Shinichiro
• Format: Journal Article
• Language: Japanese
• Published: Tokyo The Society of Polymer Science, Japan 01.01.2002; Tsukiji daisan nagaoka
• Subjects: Aramid; Bending Strength; Fiber Reinforced Plastics; Furan Resin; Heat Treatment; Phenol Resin
• ISSN: 0386-2186; 1881-5685
• DOI: 10.1295/koron.59.51

Fiber reinforced plastics (FRP) of which fiber content was 18 vol% were made from unidirectionally and spontaneously stacked aramid fibers (Technora) and phenol-formaldehyde resin (phenol resin) or furfuryl alcohol resin (furan resin). Characterization of two kinds of FRPs was done from a viewpoint of change of bending strength by heat treatment. When phenol resin was heated at a temperature above 500°C, many cracks appeared, but the formation of cracks was controlled in the FRP.The bending strength of FRP was almost two times larger than that of the resins in case of putting load from the direction of minor axis of fiber. In addition, the bending strength of the FRP made from Technora and furan resin was a little larger than that of the FRP from Technora and phenol resin. The experimental data showed that furan resin was more suitable than phenol resin as a matrix. The straight relationship was observed between the bending strength and the weight loss before carbonization. Also, a power law, σ∝ρn, existed between bending strength (σ) and bulk density (ρ).