The acidity and basicity,mixing speed of the process and the dosage of modified fly-ash has important effect on the reinforced performance of NBR,however the performance of NR is unconspicuous.

• 结果表明,粉煤灰改性过程中的酸碱性条件、搅拌速度以及改性粉煤灰的用量都对NBR的补强作用有较大影响,而改性粉煤灰对NR的补强作用并不明显。