Nitric acid has much more surface chemistry effects on the low modulus carbon fiber than high modulus one. 硝酸氧化对低模量碳纤维的表面改性远比高模量碳纤维的大。
Optimal conditions for preparation of active lignin oxide by oxidizing black-liquor lignin with nitric acid were studied. 研究了造纸黑液木素稀硝酸氧化法制备活性氧化木素的适宜条件。