Recycled and devulcanized rubber modified epoxy-based composites reinforced with nano-magnetic iron oxide, Fe3O4
Recycled and devulcanized rubber modified epoxy-based composites reinforced with nano-magnetic iron oxide, Fe3O4
复制标题
DOI：
10.1016/j.compositesb.2018.04.047
复制
发表时间：
2018-09-01
影响因子：
13.1
通讯作者：
Miskioglu, I.
中科院分区：
文献类型：
--
作者：
Irez, A. B.;Bayraktar, E.;Miskioglu, I.
橡胶改性环氧树脂基复合材料是通过低成本的生产方法设计的。基本上，清洁和回收的材料被用于为汽车和航空工程等工业应用中的轻质，低成本复合材料的制造提供解决方案。在本研究中，已经开发了四种不同的组合物，并表征了它们作为结构材料的潜在用途。通过用10%的再生橡胶处理环氧树脂来制备基体。将纳米磁性氧化铁Fe3O4作为增强元素以不同比例添加到基体中。镍和铝也作为辅助添加元素加入。导磁率和介电性能的测量已经基本上在航空工程中的电子器件应用中进行。采用动态扫描量热仪（DSC）和动态力学分析仪（DMA）研究了复合材料的热机械性能。通过3点弯曲（3PB）测试进行静态测试，以进行机械表征。此外，这些组合物的蠕变和磨损行为进行了评估，通过纳米压痕测试，以分析这些复合材料的时间依赖性行为。在非常高的循环测试条件下进行宏观划痕测试，以测量它们的长时间耐受性。用扫描电子显微镜（SEM）对试样的微观组织和断口进行了分析。扫描电子显微镜，纳米压痕，静态（3PB），测试结果揭示了增韧机制的组合效果高强度和韧性，以纳米磁性氧化铁为增强剂，辅以超细镍粉和纳米铝粉，制备了一种轻质低成本的橡胶改性环氧复合材料。
Rubber modified epoxy based composites were designed by low cost production methods. Basically, clean and recycled materials were used to provide a solution for manufacturing of lightweight, cost efficient composites in industrial applications such as automotive and aeronautical engineering. In the present study four different compositions have been developed and characterized for their potential usage as structural materials. The matrix was prepared by treatment of epoxy with 10% recycled rubber. Nano-magnetic iron oxide, Fe3O4, was added to the matrix as reinforcement elements in different percentages. Nickel and aluminium were also add as auxiliary additional elements. Measurements of magnetic permeability and dielectrically properties have been carried out for electronic devise applications basically in aeronautical engineering. Dynamic Scanning Calorimeter (DSC) and Dynamic Mechanical Analysis (DMA) were carried out to determine thereto-mechanical properties. Static tests have been carried out by 3-point bending (3PB) tests for mechanical characterization. Furthermore, creep and wear behaviour of these compositions were evaluated by means of nanoindentation tests to analyze time dependent behaviour of these composites. Macro scratch tests were made in very high cycle test conditions for their measurements in long time resistance. Microstructural and fracture surface analyses have been carried out on the scanning electron microscopy (SEM).All of the experiments; scanning electron microscopy, nanoindentation, static (3PB), test results expose a combined effect of toughening mechanisms high strength and ductile, lightweight and low-cost composites based on the rubber modified epoxy composites reinforced with nano magnetic iron oxide and auxiliary fine nickel and nano aluminium powders.