Mechanical Properties of Polyethylene Terephthalate

As seen earlier, the incorporation of 30% glass fiber into polyethylene terephthalate increases the tensile strength from 55 to 100 MPa (Table 3.1), while increasing the flexural modulus from 2.3 to 5-17.9 GPa and decreasing the elongation of break from 250% to 2.2% (Table 3.3). 

Glass-filled polypropylene has been the subject of several studies involving tensile testing and the measurement of notched Izod impact strength. Gupta and coworkers 

Koh et al. [15] investigated the mechanical and thermal properties of glass-reinforced polyethylene terephthalate and showed that the molding process used was very important in achieving optimal mechanical properties. 

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Table 4 Mechanical properties of polyethylene terephthalate-based self-reinforced polymer composites, as described in the literature...

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