依托新疆优质风化煤资源制备黄腐植酸(FA)，基于FA的结构特点通过分子设计制备功能化黄腐植酸(FFA)，实现其高效成核性，并以FFA为高效成核剂制备聚乳酸(PLA)材料。通过研究FFA在PLA熔体中的自组装行为、FFA成核微纤产生及成核机制、FFA诱导PLA结晶形态演变影响因素，揭示PLA结晶速率及结晶形态对FFA浓度的依赖性规律，提出PLA结晶形态演变机理模型，考察结晶调控对PLA材料的力学性能、耐热性、韧性、耐水解性及生物降解性的影响。通过FFA对PLA结晶性能的有效调控丰富PLA结晶形态与结构、提高PLA结晶速率，实现PLA材料的高性能化，解决PLA材料开发与应用的瓶颈问题，为采用普通注射成型方法制备高性能化PLA制品提供新思路、新方法和新工艺。项目的开展对于治理新疆严重的“白色污染“、推进新材料产业发展和人才培养及新疆地产风化煤资源的高附加值开发和特色资源转化具有重要的意义。

Fulvic acid (FA) is prepared with the high quality local weathered coal resources from Xinjiang, and functionalizational fulvic acid with high efficient nucleating properties is prepared by introduction of amide groups onto the surface of humic acid via molecular design, moreover, poly (lactic acid) (PLA) materials are prepared with functionalizational fulvic acid (FFA) as the high efficient nucleating agent. The heterogeneous nucleation behavior of FFA on PLA crystal, the self-assembly behavior of FFA in PLA melt, the generation mechanism and influence factors of nucleation shish-like bril and nucleation of FFA are investigated, which reveals the dependence regulartity of the crystallization rate and crystal morphology of PLA on the FFA concentration, and puts forward the mechanism model of the crystal morphological evolution of PLA induced by FFA. Furthermore, the effects of the controlling crystallization of PLA on the mechanical properties, heat resistance,toughness, hydrolysising resistance and biodegradability of PLA materials are studied. The crystallization properties of PLA are effectively controlled by FFA, which will enrich the crystal morphology and structure of PLA and dramatically improve the crystallization properties. Therefore, the high performances of PLA materials are also achieved, which will solve the bottleneck problem of PLA material development and application, and provide new ideas, new methods and new technology for high performance of PLA products processed by practical injection molding. The project will be significant for the treatment of serious "white pollution" from Xinjiang, and the improvement of new materials development and talent cultivation of Xinjiang as well as high value-added development of weathered coal resources and featured resources transformation from Xinjiang.