HANDLING ANISOTROPY AND STRENGTH OF FIBER-REINFORCED PLASTIC VIA LOCAL INHIBITION OF THE CURING PROCESS

Abstract

The authors study the possibility of increasing the polymer composite material strength, of reducing anisotropy of cross-breaking strength. The effect is achieved due to local inhibition of prepreg package. During the prepreg curing process by the vacuum-autoclave method, the inlay gelling action occurs later than in three-layer prepreg packets though they are located between them. The processes of increasing cross-breaking strength and of reducing the anisotropy are associated with the possibility of free shrinkage of three-layer prepreg packets.

Keywords

• polymer composite materials
• inhibitor
• gelling action
• dielectric analysis
• anisotropy