本发明公开一种高强度低逾渗UHMWPE/超导炭黑导电复合材料及其制备方法。包括以下重量份的组分：UHMWPE粉料85～98.8份、超导炭黑1～14.8份、抗氧剂0.1~0.6份,偶联剂0.1～0.6份。其制备工艺如下：原料干燥；高速混合制备UHMWPE/超导炭黑共混粒子；高温压制成型。本发明提供的高强度低逾渗UHMWPE/超导炭黑导电复合材料,当超导炭黑的添加含量为1wt%,电导率可达到10^-5 S/cm,具有较低的逾渗值,较高的拉伸强度和韧性。复合材料压制成型的导电板材除了具有与超高分子量聚乙烯相媲美的优异机械性能,还赋予了超高分子聚乙烯工程塑料新的特殊功能,如抗静电,电磁屏蔽等特殊功能。

The invention discloses a high-strength and low-percolation UHMWPE/superconductive carbon black composite material and a preparation method thereof. The high-strength and low-percolation UHMWPE/superconductive carbon black composite material is composed of, by weight parts of 85-98.9 parts of UHMWPE powder, 1-14.8 parts of superconductive carbon black, 0.1-0.6 part of antioxidant and 0.1-0.6 part of coupling agent. The preparation method of the high-strength and low-percolation UHMWPE/superconductive carbon black composite material comprises raw material drying, high-speed mixing and preparation of UHMWPE/superconductive carbon black hybrid particles, and high-temperature press forming. When the added amount of the superconductive carbon black is 1 wt%, the high-strength and low-percolation UHMWPE/superconductive carbon black composite material achieves a conductivity up to 10^-5 S/cm and is low in percolation value and high in tensile strength and tenacity. A conductive sheet press-formed by the high-strength and low-percolation UHMWPE/superconductive carbon black composite material is not only endowed with excellent mechanical performance comparable with that of the ultrahigh molecular weight polyethylene, but also endows ultrahigh molecular weight polyethylene engineering plastics with new special functions such as anti-static property and electromagnetic shielding.