Ethane copolymer and preparation method and application thereof

The invention relates to an ethane copolymer prepared by utilizing a specific supported non-metallocene catalyst, and a preparation method thereof. Besides, the invention also relates to a method for preparing a peroxide-crosslinked PE pipe from the ethane copolymer and the peroxide-crosslinked PE pipe prepared by the method. The method for preparing the peroxide-crosslinked PE pipe is suitable for industrial large-scale implementation, and can effectively avoid the problem of dust flying and the risk of dust explosion in the manufacturing process; and the prepared peroxide-crosslinked PE pipe has longer oxidation induction time.