These are some of the topics handled in the workshop hosted by IDA Polymer 23. January 2019.
Please note that the programme below is subject to changes.
09.00 Registration og breakfast
09.15 Welcome v/ Planning Group
09.20 Topic 1. Aging of plastics – mechanisms v/ Kristoffer Almdal, Nanotech DTU
10.20 Topic 2. Additives - How to stabilize polymers to increase shelf life v/ Dr. Mathias Zäh, Head of Application Technology Laboratory, BU Additive, Clariant, Gersthofen, DE
The talk will give an overview of different possibilities of how to protect plastics during processing and service life. There is no possibility to repair a broken polymer chain. In order to improve parameters as mechanical strength, color and recyclability it is necessary to avoid any kind of degradation from the very beginning. The combination of process stabilizers, long term heat stabilizers and UV-stabilizers must be optimized case by case.
11.20 Topic 3. Instrumental Weathering v/ Mads Strenov, Strenometer ApS
The talk will introduce the basic factors of weathering (degradation of plastic caused by the sun) and how to measure these factors. These factors determined the test method and the different types of instruments and light sources as well as the settings. The talk will also cover briefly acceleration and correlation. It all ends up in the latest way to accelerate and more correlated test trends. The main focus will be on instrument types and their specific use.
12.00 Topic 4. Nedbrydningsmekanismer i polymer materialer v/ Daniela Bach, Polymer Specialist, FORCE Technology
13.20 Topic 5. Degradation of Semicrystalline Polyesters and Links to End Product Performance v/ Emil Andersen, Jr. Engineer - Industrial PhD Student, LEGO Systems A/S
Degradation of polymers is a widely complex system of interactions in finished products, and in academical work it can be difficult to cover all bases. Work has been done to evaluate physical ageing, a central degradation effect that causes embrittlement in amorphous and semicrystalline polymers. Physical ageing has been shown to affect mechanical properties and is easily evaluated by DSC and accelerated by temperature in Arrhenius behavior in PCTT. Future work in evaluation of ABS, MABS, PBT, PC, PCTT, PETG, PET-R and PET-R-IM in a real-life exposure and laboratory UV-sources will also be presented.
14.00 Topic 6. Circular economy in relation to plastics v/ Thomas Drustrup, Managing Director, The Danish Plastics Federation
The Danish Plastics Federation has taken the initiative to establish the “Forum for Circular Plastic Packaging”. The goal has been to position Denmark as a front runner, in creating tomorrow’s solutions for sustainable plastic packaging. The forum consists of more than 50 players from the entire value chain, and includes packaging manufacturers, politicians, food producers, NGOs, retail chains, municipalities, researchers, recycling companies and consultants. Now we would like to invite all interested parties to come and hear the results of the forum.
14.30 Coffee and cake
14.50 Topic 7. Circular Economy and challenges when reusing fishing nets v/ Allan V. Rasmussen, Head of sales and R&D, Plastix A/S
Plastix is a Danish cleantech company that recycles post-use plastic (including fishing nets, trawls, ropes and post-use hard plastic fractions) for new re-granulated HDPE and PP-co.
Over the last 6 years, new technologies and processes have been developed which makes it possible to produce new material out of fishing nets. These fractions are potentially quite degraded as a consequence of their use. So, a major challenge is making sure that the material are stabilized, so the re-granulated material can live through several cycles in the future.
This talk will present the technology of Plastix and the challenges to secure a stable re-granulate. A range of process stabilizers has been tested and OIT measurements has been made to find the most efficient ones.
15.20 Topic 8. TBD Case ex. Levetidsbestemmelse af ny pumpe med ny plastpolymer
15.50 Topic 9 Epoxy Matrices Modified by Green Addivites for Recyclable Materials v/ Mogens Hinge, Assco. Prof., AU
Epoxy-based thermosets are one of the most popular matrix materials in many industries due to its light-weight, high strength and anti-corrosive nature. Incorporation of a bio-based additive (L-cystine) within a commercial epoxy system leads to a cross-linked material that can be fractionated under mild and environmentally benign conditions . The material has been analyzed by FTIR and solid-state NMR to ensure incorporation and fully curing of the matrix. Further, modified epoxy matrices with only 5 mol% hardener equivalent substituted are demonstrated to have similar mechanical and thermal properties compared to the unmodified epoxy systems. Solvent resistance of the modified epoxy was tested and showed the same resistance towards the most common solvent as unmodified epoxy system. Thus, additive formulation and fractionation based on green chemistry principles have been demonstrated, and a recyclable epoxy matrix developed.
 M. L. Henriksen et al., ChemSusChem, 2017, 10 (14), 2936-2944.
The Danish Innovation Foundation (FI No: 5152-00003A) is gracefully thanked for the financial support.
16.20 Wrap up and closing
Presentations will be in English!
DMN PlastNet og Innovationsnetværk for Miljøteknologi er medarrangører
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