Abstract：
The production of composite materials through the reuse of waste or by-products from the agri-food industry will be a challenge for environmental protection. This study focuses in that direction. In the first stage, composites were made with the hybrid resin matrix (with three major volume proportions of natural Dammar resin and epoxy resin) and the reinforcing from shredded shells of sunflower seeds. Based on the tensile and compressive stresses, the stress-strain and strain-strain diagrams were obtained. The surface area of the rupture was investigated with stereo-microscopic analysis, and the absorption/loss of water was studied with a high precision balance. The vibration behavior was investigated experimentally, determining the damping coefficient and its own frequency. In the second stage, the study of these materials was extended. Sandwich composites were made with the same type of hybrid matrix as in the first stage. The core was made of shredded shells of sunflower seeds and the outer faces of linen fabric. These composites were applied to the bend (in three points), being obtained the force-deformation diagrams. The determined mechanical properties allow the complete or partial realization of these composites of some furniture components or of some equipment used in the field of constructions.
摘要：
通过再利用农业食品工业的废物或副产品来生产复合材料将是环境保护的挑战。本研究的重点是这个方向。在第一阶段,复合材料是用混合树脂基体（天然达玛树脂和环氧树脂的三种主要体积比例）和葵花籽切碎的外壳制成的。基于拉伸和压缩应力，得到了应力-应变和应变-应变图。用立体显微镜分析研究了破裂的表面积，并用高精度天平研究了水的吸收/损失。对振动行为进行了实验研究，确定阻尼系数及其自身的频率。在第二阶段,这些材料的研究得到了扩展。用与第一阶段相同类型的混合基质制备夹层复合材料。核心由葵花籽切碎的外壳和亚麻织物的外表面制成。这些复合材料被施加到弯曲（在三个点），得到力-变形图。所确定的机械性能允许完全或部分实现一些家具部件或建筑领域中使用的一些设备的这些复合材料。
