聚乙烯及其共混物的缺口敏感度

The Notch Sensitivity of Polyethyene and Its Blends

本文用单边缺口试样研究了聚乙烯(PE)及其共混物在拉伸条件下的缺口敏感度。结果表明,高密度聚乙烯(HDPE)与顺丁橡胶(BR)的共混物的缺口效应明显减小,而低密度聚乙烯(LDPE)的共混物则无明显效果。

The notch sensitivity of polyethylene and its polybutadiene(BR)blendswere determined with single Side notched sample under tension The experi—mental results showed that the notch sensitictty is decreased in HDPE/BRblends and not changed obviously in LDPE/BR blends.