Green composites have ecofriendly features that are technically and economically feasible while minimizing the pollution. It refers to the combination of degradable fibers mostly cellulosic materials and natural resins to develop green composites. Since mechanical performance of such structures is a concern for industry, by playing with the position and pattern of yarns in woven fabric, these properties can be optimized. This research focuses on the development and characterization of novel 3D woven jute/green epoxy composites having hybrid interlocking patterns. Four conventional derivatives of 3D woven fabrics i.e. orthogonal layer to layer (OLL), orthogonal through thickness (OTT), angle interlock layer to layer (ALL), angle interlock through thickness (ATT) and three novel 3D woven fabrics i.e. H1 (combination of OTT and ATT binder yarns), H2 (combination of OTT and ALL binder yarns), H3 (combination of orthogonal layer to layer warp and weft interlock called as bi-directional interlock) were developed using different binding patterns on dobby loom. Tensile, flexural, and short beam shear tests were performed to check the mechanical performance of the developed composites. OTT composite structure showed the highest values of tensile strength, modulus, and maximum force both in warp and weft directions as compared to the other 3D interlock structures, due to least interlacement/crimp of binder yarn. While ATT composite exhibited the highest value of flexural strength and modulus both in warp and weft directions due to through thickness angle binder yarns. H3 composite showed the highest values of force and short beam shear strength in warp direction.

绿色复合材料具有环保特性，在技术和经济上都可行，同时最大限度地减少污染。它是指将可降解纤维主要是纤维素材料与天然树脂相结合，开发绿色复合材料。由于此类结构的机械性能是工业关注的问题，因此可以通过调整机织物中纱线的位置和图案来优化这些性能。这项研究的重点是具有混合互锁模式的新型 3D 编织黄麻/绿色环氧树脂复合材料的开发和表征。3D 机织织物的四种传统衍生物，即正交层对层 (OLL)、正交厚度 (OTT)、角度互锁层对层 (ALL)、角度互锁横向厚度 (ATT) 和三种新型 3D 机织织物，即 H1（组合OTT 和 ATT 接结纱），H2（OTT 和 ALL 接结纱的组合）、H3（正交层间经纱和纬纱互锁的组合，称为双向互锁）是在多臂织机上使用不同的结合模式开发的。进行拉伸、弯曲和短梁剪切试验以检查开发的复合材料的机械性能。与其他 3D 互锁结构相比，OTT 复合结构在经向和纬向的拉伸强度、模量和最大力均显示出最高值，这是由于接结纱的交织/卷曲最少。虽然 ATT 复合材料在经向和纬向均表现出最高的弯曲强度和模量值，因为它采用了贯穿厚度的角接结纱。H3 复合材料的经向力和短梁剪切强度值最高。