交聯聚乙烯 英文簡稱XLPE，是提高PE性能的一種重要技術。經過交聯改性的PE可使其性能得到大幅度的改善，不僅顯著提高了PE 的力學性能、耐環境應力開裂性能、耐化學藥品腐蝕性能、抗蠕變性和電性能等綜合性能，而且非常明顯地提高了耐溫等級，可使PE 的耐熱溫度從70℃提高到90℃以上，從而大大拓寬了PE 的應用范圍。目前，交聯聚乙烯（XLPE ）已經被廣泛應用于管材、薄膜、電纜料以及泡沫制品等方面。

XLPE is an important technology to improve the properties of PE. The properties of PE modified by crosslinking can be greatly improved, not only the mechanical properties, environmental stress cracking resistance, chemical corrosion resistance, creep resistance and electrical properties of PE are significantly improved, but also the temperature resistance grade is significantly improved, and the heat resistance temperature of PE can be increased from 70 ℃ to more than 90 ℃, thus greatly broadening the scope of PE The scope of application of the system. At present, crosslinked polyethylene (XLPE) has been widely used in pipes, films, cable materials and foam products.