Preliminary communication

https://doi.org/10.17559/TV-20210524213954

Research of Protective Coatings Application on Polymer Formulations Made by Additive Technology

Josip Groš* orcid.org/0000-0003-2829-5464 ; University of applied science Karlovac, I. Meštrovića 10, 47000 Karlovac, Croatia
Pero Raos ; University of Slavonski Brod, Mechanical Engineering Faculty, Trg I. B. Mazuranic 2, 35000 SlavonskiBrod, Croatia
Mirela Leskovec ; University of Zagreb, Faculty of Chemical Engineering and Technology, Marulicev trg 19, HR-10000 Zagreb, Croatia

Abstract

Injection molding of polymer moldings has proven to be a fast way of making products for medium and high series production for many years. In order to produce a quality product, all stages of the process must be under control (tools, materials, injection molding machine, etc.). In the last two decades, additive technology for the production of prototypes and, more recently, finished products has been developing intensively. The biggest disadvantage of additive technology is the limited choice of polymer materials and different mechanical properties of products compared to products produced by injection molding technology. Making a mold for the injection molding process is time consuming and expensive, and for smaller batches, an unprofitable process. By making molds for injection molding with additive technology, we accelerate the process of production of finished products. One of the disadvantages of making molds in this way is their durability. In order to increase the durability of the mold, the area of coating application will be investigated. The research was conducted as part of the application for a doctoral thesis. The paper will be divided into three key sections. The first part of the paper will explain the research conducted so far. In the second part, the examination of the surface parameters that are necessary for us to obtain the connection between the additive material and the coating will be presented. Taking into consideration the first two units, the third unit will explain: the selection of the experiment plan, input factors, output factors as well as the method of conducting the experiment.

Keywords

additive technology; application of protective coatings; differential scanning calorimetry analysis; free surface energy and surface adhesion; polymer mold; thermogravimetric analysis (TGA)

Hrčak ID:

260868

URI

https://hrcak.srce.hr/260868

Publication date:

22.7.2021.

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