• Tomkowski, Robert

Abstract

<jats:p>Nowadays, plastics have become one of the most demanded materials, replacing the traditional ones such as metals. Therefore, many companies are concerned with the production of plastics, with their distribution and innovation development. Plastics have found utility in a wide range of applications, we use them every day. Measurement of surface roughness of plastic moldings produced by the injection molding process was carried out by a contact profilometer Mitutoyo Surftest SJ401. A reason for this measurement is to obtain information about surface roughness. For further technical adjustment is required to have higher surface roughness what helps to increase electrical conductivity of plastic moldings. This involves determination of a ratio between <jats:italic>Ra/Rz</jats:italic> (the ratio between the arithmetic average of the roughness profile <jats:italic>Ra</jats:italic> and the average maximum height of the profile <jats:italic>Rz</jats:italic>) in order to satisfy customer demand for achieving better surface characteristics leading to an increase in electrical conductivity.</jats:p>

Topics

• impedance spectroscopy
• surface
• polymer
• injection molding
• electrical conductivity