The physical and mechanical properties of matrix based on epoxy resin ED-20 were investigated by adding unsaturated polyester resin ENYDYNE H 68372 TAE at different concentrations. The contents of polyester resin in the epoxy one by changing its concentration in the range of q = 10–120 mas.fr. were analysed. It was experimentally determined that matrix is characterised with its maximal rates of physical and mechanical properties with q = 10 mas.fr. of polyester resin ENYDYNE H 68372 TAE per 100 mas.fr. of ED-20. The received material is marked by the following indexes of physical and mechanical properties: fracture stresses during the flexion – σ fl = 56.2 MPa, the modulus of elasticity during the flexion –E = 4.2 GPa, impact toughness –W = 12.8 kJ/m2. It was proved that indexes of modulus of elasticity and impact toughness during the flexion of developed composite are higher in 1.5–2 times, in comparison with the indexes of matrix which is based on the epoxy resin ED-20. The images of fracture of the composite materials were analysed through optical microscopy. It was determined that the results of investigation correlate with the obtained indexes of physical and mechanical properties, confirming their authenticity. The clearly defined heterogeneity of given polymers was not observed on the photos of fracture, which indirectly points on the compatibility of the ingredients of the binder, chosen for the study.

中文翻译：

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具有改善的物理和机械性能的环氧聚酯基质配方，用于修复海上和河流运输工具

通过添加不同浓度的不饱和聚酯树脂ENYDYNE H 68372 TAE，研究了基于环氧树脂ED-20的基体的物理和机械性能。环氧树脂中聚酯树脂的含量通过在 q = 10-120 mas.fr 范围内改变其浓度而得到。进行了分析。通过实验确定，基质的特征在于其物理和机械性能的最大速率，q = 10 mas.fr。聚酯树脂 ENYDYNE H 68372 TAE 每 100 mas.fr. ED-20。收到的材料以以下物理和机械性能指标为标志：弯曲过程中的断裂应力 - σ fl = 56.2 MPa，弯曲过程中的弹性模量 -E = 4.2 GPa，冲击韧性 -W = 12.8 kJ/m2。结果表明，所开发的复合材料在弯曲过程中的弹性模量和冲击韧性指标比基于环氧树脂ED-20的基体指标高1.5-2倍。通过光学显微镜分析复合材料的断裂图像。确定调查结果与获得的物理和机械性能指标相关，证实了其真实性。在断裂照片上没有观察到给定聚合物的明确定义的异质性，这间接表明了为研究选择的粘合剂成分的相容性。通过光学显微镜分析复合材料的断裂图像。确定调查结果与获得的物理和机械性能指标相关，证实了其真实性。在断裂照片上没有观察到给定聚合物的明确定义的异质性，这间接表明了为研究选择的粘合剂成分的相容性。通过光学显微镜分析复合材料的断裂图像。确定调查结果与获得的物理和机械性能指标相关，证实了其真实性。在断裂照片上没有观察到给定聚合物的明确定义的异质性，这间接表明了为研究选择的粘合剂成分的相容性。