Framställning av magnetisk polymerkomposit : Stålpulverfylld epoxi med magnetiska egenskaper

Sammanfattning: To compete with other manufacturing companies in the market, product design and manufacturing methods need to be improved constantly. To save time and money, there is an advantage if there is a manufacturing plan in place before designing the final product. Composites have been used worldwide for over 6,000 years and their use is expected to increase in the future. Composites offer advantages in product design and manufacturing since it can be adapted to the intended purpose.  The purpose of the project is to determine whether it is possible to produce a magnetic polymer composite with a sufficiently high magnetism to lift a specific weight. The purpose is fulfilled through practical executions together with a literature study to find out which materials were most suitable for the application. The polymer composites were tested in magnetic tests to see if a sufficiently high magnetism was obtained to lift the specific weight.  Two steel powders, differing in particle structure and density, were mixed with an epoxy as a binder and then cast in two different moulds with a depth of 2 mm and 4 mm. The proportions of the steel powder were tested from 50% up to 97%. The result showed that sufficiently high magnetism to lift the intended weight was reached at a concentration of steel powder between 85% - 97%. The composites did not exhibit the necessary magnetic capacity to function in the intended application and therefore further tests with a magnetic material with higher relative permeability are proposed.