| abstract |
The invention provides a wall-flow cordierite gasoline particle filter, the porosity of the gasoline particle filter is 60-70%, and in parts by weight, the gasoline particle filter is composed of 70-90 parts of inorganic powder , 8-25 parts of mixed powder composed of organosilicon microspheres, starch, polymer resin, graphite and binder, the particle size of the organosilicon microspheres is between 20-30 μm, and the silicon content is 36-37% , with an oxygen content of 20-22% and a carbon content of 31-33%. By adding organosilicon microspheres, the present invention utilizes its excellent pore-forming effect to prepare a gasoline particle filter with good micropore connectivity and pressure drop. Due to the characteristics of slow decomposition by heat and less flame, the present invention effectively solves the problem of current high The porosity gasoline particle filter is fired and cracked, and the firing rate is low, which significantly reduces the production cost and improves the production efficiency. |