The results show that the content of B can be increased by purification,the surface acidity of boron reduces and the apparent viscidity and yield value of B/HTPB mixture increase slowly with the increase of mixing time.

• 结果表明,硼粉的提纯处理使硼元素含量小幅度增加,硼粉表面酸性降低,B/HTPB混合物的屈服值和表观黏度增长减缓。