The results showed that the particle size of yttrium oxide could be increased effectively by improving acidity, precipitation temperature, prolonging aging time, and decreasing feeding speed.
The hardness of the silica column increased with the increase of aging time.
The percentage of intergranular fracture increases with aging time.
The yellow index of blends at different mixing time and thermal aging time increased obviously than that of pure polymer.
The invention relates to a method for shortening the natural aging time of tobacco leaves through ambient temperature and humidity and belongs to the technical field of tobacco application.
The results showed that the coating had the best performance when it was aged for 4 weeks. However, when the aging time was longer or shorter, the coating would exhibit bad anti-corrosion performance.
