Firstly a nano-CaCO3-LDPE masterbatch containing 30 g/100 g of the commercial nano-CaCO3,56 g/100 g of LDPE granule and 14 g/100 g of cross-link reagent gmethacryloxypropyltrimethoxysilanewere immingled in uniformity
through a high-speed mixer (WK-06, Zhangjiagang Wankai Machinery Co. Ltd, Zhangjiagang, China) for 1 h.