Research Article

The Synergy of Nanosilica and Zinc Diethyl Hypophosphite Influences the Flame Retardancy and Foaming Performance of Poly(Ethylene Terephthalate)

Table 6

Foaming ratio of samples at various foaming temperature.

Temperature/°C220225230235240245250

10Z130. 633. 423. 76. 331
10Z/1S127. 638. 128. 834. 224. 116. 9
10Z/3S16. 514. 918. 317. 316. 92. 3
10Z/5S17. 214. 614. 518. 37. 71