Short glass fibers moduli

Later advances include short, glass-fiber reinforced, high-modulus (flexural modulus greater than 300,000 psi, i.e., 2070 MPa) polyurethane elastomers produced by the reinforced RIM process. These reinforced high-modulus polyurethane elastomers are considered for automotive door panels, trunk lids, and fender applications. 

Mantia et al. [70] used short glass fibers to reinforce a PET/HDPE mixture (Table 16.9), which is one of the typical compositions in packaging waste. The mechanical properties of the blends, except for the elongation at break, are enhanced with the increase of glass fiber content. The addition of 20 wt % glass in PET/HDPE blends increased the tensile modulus by 50%, tensile strength by 110%, and impact strength by 70%. In addition, the heat distortion temperature of the blend was remarkably improved. 

Figure 6.177 Flexural modulus vs. temperature for DuPont Zytel 77G33L NC010—general purpose, lubricated, 33% short glass fiber reinforced Nylon 612 resin.

In summary, then, a suitable processing history that includes extensional flow can yield a reinforcing, microfibrillar morphology of the dispersed LCP phase. Modulus values that are similar to those of short glass fiber-reinforced plastics can... 

BASF Corp, An Advanced High Modulus (HMG) Short Glass Fiber Reinforced Nylo6 Part I, Technical artide available at http //www.basf.com/PLASnCSWFB/ displayanyfile id=0901a5el80086583. 

In many engineering applications short glass fiber reinforcement is added to the material. This has the advantage of increasing the strength and modulus of the material. As the material flows into the mold, the fluid deformation and interaction with other fibers alters the orientation of the fibers. The final orientation state will depend on the processing history of the material and may lead to highly anisotropic material properties. 

Figure 11.8. Tensile modulus (a), and tensile strength (b) of injection molded samples from recycled PET (bottles) and LDPE as compared to neat LDPE and LDPE reinforced by short-glass fibers (GF) or glass spheres (GSph)...

Figure 3.435. Dependence of the Young s modulus, E, on the short-glass fiber content in two directions (T and L see Fig 3.438) for poly(ethylene terephthalate) filled with glass fibers (Rynite = GF-PET) [1256],...

To explore the possibility for a more diffuse utilization of broom fibers composites in substitution for short glass fiber materials, a comparative analysis of properties of these two kinds of composites was performed, and the results are reported in Fig. 60(a, b). In these graphics Young s modulus (a) and tensile strength at break (b), normalized with respect to the materials density, are reported as a function of fiber content. 

PBT is often mixed with short glass fibers, which simultaneously allows an increase of its stress at break (tenacity) and its elastic modulus. 

This article presents our investigation on several technical issues in the ASTM and ISO standards on the tensile properties of plastics. Using polyamide (PA) 6 and polyethyleneterephthalate (PET) based thermoplastics as examples, our analysis revealed a range of similarities and differences in these two testing procedures. With either procedure - ASTM or ISO - similar results were obtained for material parameters such as tensile strength, tensile strain, and modulus of elasticity, in nonreinforced and short glass fiber reinforced plastics. 

Calculating the Average Orientation from Measured Modulus and Halpin-Tsai Equations for PBT and PA/PAT Composites with Short Glass Fibers... 

Typical features of the shear lag model effect of fiber aspect ratio on calculated modulus, compared with experimental data material parameters Short Glass Fibers, Egj, = 77.0 GPa, Vgg = 0.20, L = 1 mm D = variable polypropylene, = 1.14 GPa, = 0.43. 

Flexural modulus (GPa) for short glass fibers filled PP... 

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