Master student to our production site in Laholm, Sweden







Do you enjoy chemistry and materials development? Would you like to do your diploma work in a company that stretches the boundaries of lightweight material applications? If your answer is YES to both questions, we have an interesting opening for you!

Diab has 6 strategically located manufacturing sites and 14 sales units around the world to support its global customers. The R&D team is located both in Laholm in Sweden and in Longarone in Italy. Diabs brand name, Divinycell, is world known and Divinycell materials have been studied in numerous technical and scientific investigations over the past decades.


Project background

Divinycell F is a structural foam, which is used as core material in sandwich composites for high performance applications. The foam is based on polyether sulfone (PESU) which is an amorphous thermoplastic with excellent fire and smoke toxicity (FST) characteristics. When Divinycell F is subject to sandwich production a fibre reinforced thermoset skin is manufactured on the foam surfaces. This is a complex process, which requires fundamental chemical and physical knowledge in order to achieve optimal product performance. Generally, the target is to produce a sandwich with strong adhesion between skin and core, without compromising important properties, such as weight, fire resistance and mechanical performance.

In order to meet the increasing requirements for sandwich products, the composites industry is currently moving towards more automatized processing technology. This poses new challenges to foam core producers in terms of material and process development, and to remain a leader of core materials, it is important to understand the effects of this technology shift.


Project aim

This project aims at generating a better understanding of the chemical compatibility of Divinycell F and cross-linking systems and processing conditions. There is a need in industry for more detailed guidelines on which systems are compatible and under what conditions. The project idea is to design a model test set-up, in which the cross-linker chemistry and curing conditions can be studied.


Project Outline

A model system for evaluation of compatibility between core material and thermoset resins and process will be developed. Effect of thermoset chemistry and process conditions will be studied using techniques, such as Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC).


Project and qualifications

Location: Laholm, Sweden

Project time: 6 months (including literature study and preparation of report)

Education background: Chemical engineering, materials science or similar


Contact

Send your application to Dane Momcilovic, Group R&D, no later than 31st of March 2020.

Phone: +46 (0)70 833 86 28 // Email: dane.momcilovic@se.diabgroup.com