Impact glass fiber composites

Bush, S. F., Impact Strengths of injection molded long glass fiber composites. Plast. Rubber Composites Proc. Appl., 24, 139 (1995). 

Tough-Brittle Transition of Glass Fiber Composites by Impact Testing... 

Figure 1. Effect of temperature on impact strength of glass fiber composites...

Gao L, Chou TW, Thostenson ET, Zhang Z, Coulaud M. Carbon. Vol 49, Iss 10, Aug 2011, 3382-3385. In situ sensing of impact damage in epoxy/glass fiber composites using percolating carbon nanotube networks. 

Fig. 7.3. Normalized impact toughness of glass fiber-polyester matrix composites with different fiber coatings (O) silicone vacuum fluid (SVF) Dow Coming 200 Fluid of viscosity 10 cP (A) Dow Corning 200 Fluid of viscosity 10 cP. After Sung et al. (1977).

D. F. Hasson and S. G. Fishman, Impact Behavior of Fiber Reinforced Glass Matrix Composites, in High Temperature High Performance Composites, Materials Research Society Symposium Proceedings, Vol. 120, eds. F. D. Lemkey, S. G. Fishman, A. G. Evans, and J. R. Strife, Materials Research Society, Pittsburgh, PA, 1988, pp. 285-290. 

Numerous studies have been made of the mechanical properties of fibrous composites these include recently published papers on impact properties by Izod (1,2, 3,4) and Charpy (5,6) and drop weight (7) tests. We reported the Charpy impact fracture behavior of various glass-polyester composites regarding the effects of temperature (8,9,10), specimen size (8), and fiber orientation (10). This paper describes the effects of the tough-brittle transition in the impact behavior of glass-polyester composites which occurs with a variation of temperature and specimen size. 

Fusabond [DuPont]. TM for resin used for coupling in mineral-filled polypropylene systems. Works best with long glass fiber systems. The resins act to bond the filler into the polymer matrix. Also improves surface wetting and dispersion of the filler. It enhances tensile and impact strength of the composite. 

Including 4-bromophenol in the phenol-formaldehyde resol system impacts the cross-link density of the cured product. In a systematic study of this copolymer, a comparison was made among the polymers obtained using phenol only, a 9 1 mole ratio of phenol to 4-bromophenol and a 1 1 mole ratio of phenol to 4-bromophenol. Comparisons included measurement of interlaminar shear strength and cone calorimetry tests of composites prepared using these phenolic resins and S2-glass fiber plain weave. 

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