Tensile strength terms Links

During the vulcanization, the volatile species formed are by-products of the peroxide. Typical cure cycles are 3—8 min at 115—170°C, depending on the choice of peroxide. With most fluorosihcones (as well as other fluoroelastomers), a postcure of 4—24 h at 150—200°C is recommended to maximize long-term aging properties. This post-cure completes reactions of the side groups and results in an increased tensile strength, a higher cross-link density, and much lower compression set. 

The study showed that the epoxidation enhanced the cross-linking of the mcl-PHA when exposed to air, resulting in an increased tensile strength and Young s modulus from 4.8 to 20.7 and 12.9 to 510.6 MPa, respectively. Consequently, this conferred short-term (25 days) stiffness to the modified PHA compared to a long period (50-75 days) for the corresponding neat PHA. ... 

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