A simple, efficient and eco-friendly method was developed for improving the interfacial adhesion of bamboo fibers (BFs) reinforced poly(lactic acid) (PLA) biocomposites. A biobased monomer, i.e., epoxidized soybean oil (ESO), was used to in-situ polymerize at the interface between BFs and PLA matrix for forming a polymerized ESO interfacial layer. FTIR and XPS analyses confirmed that the poly(ESO) layer was covalently bonded with both BFs and PLA matrix, resulting in an enhanced interfacial adhesion of the BF/PLA biocomposites. The flexible poly(ESO) layer contributed to a simultaneous strengthening and toughening effect on the biocomposites, hence significantly increased the tensile strength, tensile modulus, fracture elongation, and storage modulus of the biocomposites. However, the glass transition temperatures, melting temperatures, and cooling crystallization temperatures of the biocomposites were slightly decreased due to the incorporation of ESO.

开发了一种简单，有效且环保的方法来改善竹纤维（BFs）增强的聚乳酸（PLA）生物复合材料的界面粘合力。使用生物基单体即环氧化大豆油（ESO）在高炉与PLA基质之间的界面上进行原位聚合，以形成聚合的ESO界面层。FTIR和XPS分析证实，聚（ESO）层与BF和PLA基质共价键合，从而提高了BF / PLA生物复合材料的界面粘附力。柔性聚（ESO）层有助于同时增强生物复合材料的增韧效果，因此显着提高了生物复合材料的拉伸强度，拉伸模量，断裂伸长率和储能模量。但是，玻璃化转变温度，熔化温度，