A semiconducting composition comprising (i) an olefinic polymer and (ii) about 25 to about 45 percent by weight, based on the weight of the composition, of a carbon black having the following properties:
(a) a particle size of at least about 29 nanometers;
(b) a tint strength of less than about 100 percent;
(c) a loss of volatiles at 950 degrees C in a nitrogen atmosphere of less than about 1 weight percent based on the weight of the carbon black;
(d) a DBP oil absorption of about 80 to about 300 cubic centimeters per 100 grams;
(e) a nitrogen surface adsorption area of about 30 to about 300 square meters per gram or an iodine adsorption number of about 30 to about 300 grams per kilogram;
(f) a CTAB surface area of about 30 to about 150 square meters per gram; and
(g) a ratio of property (e) to property (f) of greater than about 1.1.
一种半导体组合物,包括(i)
烯烃
聚合物和(ii)约 25%至约 45%(按组合物重量计)具有以下特性的
炭黑:
(a) 粒径至少约为 29 纳米;
(b) 着色强度低于约 100
(c) 在 950 摄氏度的
氮气环境中,挥发物的损失量小于
碳黑重量的约 1%;
(d) 每 100 克
碳黑的
DBP 吸油量约为 80 至约 300 立方厘米;
(e)
氮表面吸附面积为每克约 30 至约 300 平方米,或
碘吸附量为每公斤约 30 至约 300 克;
(f) C
TAB 的表面积为每克约 30 至约 150 平方米;以及
(g) 性质(e)与性质(f)之比大于约 1.1。