1) iodine absorption number: 1217g/kg 2) dbp absorption number: 1147m3/100g 3) dbp absorption number of compressed sample: 90 ~ 106m3/100g 4) ctab surface area: 102 ~ 120m2/g 5) nitrogen surface area: 112 ~ 126m2/g 6) heating loss: 2.5% 7) stress at 300% elongation: -2.31.6mpa. 20kg/paper bag
