In this paper, microcrystalline cellulose (MCC) was extracted from Arundo donax L. (AD), using acid hydrolysis method, and successfully functionalized with amine groups. The structure, morphology and crystallinity of the unmodified and modified MCCs were investigated. Subsequently, the amino-functionalized MCC (MCCA) at different ratios was employed as a reinforcement of bisphenol A aniline based benzoxazine (BA-a), and the curing kinetics of the as-prepared composites were studied by two isoconversional integral methods. The kinetic triplet was determined. The MCCA-based composites showed a single curing stage relative to the complex polymerization process of pure BA-a. Interestingly, the average activation energy and decimal logarithm of pre-exponential factor of the cure process decreased respectively from 89 kJ/mol and 6.95 for BA-a to 80 kJ/mol and 6.05 with the incorporation of 15 % (wt.) MCCA. The studied systems followed an Avrami-Erofeev reaction mechanism, which reflects the autocatalytic polymerization behavior of BA-a.

本文采用酸水解法从Arundo donax L.（AD）中提取微晶纤维素（MCC），并成功地将其与胺基团官能化。研究了未修饰的和修饰的MCC的结构，形态和结晶度。随后，将不同比例的氨基官能化MCC（MCCA）用作双酚A苯胺基苯并恶嗪（BA-a）的增强剂，并通过两种等转化积分方法研究了所制备复合材料的固化动力学。测定动力学三重态。相对于纯BA-a的复杂聚合过程，基于MCCA的复合材料显示出一个固化阶段。有趣的是，固化过程的指数前因子的平均活化能和十进制对数分别从89 kJ / mol和6降低。BA-a为95，至80 kJ / mol和6.05，并加入15％（wt。）MCCA。所研究的系统遵循Avrami-Erofeev反应机理，反映了BA-a的自催化聚合行为。