Bio-based Sandwich Composites for “Plasma-Jute-e-Box”

Purpose and goal:

The aim was to demonstrate the possibility of replacing less durable reinforcement materials such as glass and carbon fiber with the natural fiber jute, with maintained or better functional properties. Weight reduction was achieved; JuteTech weighing about 1.46 g/cm2 compared to the fiberglass, about 2.55 g/cm2. In addition to jute, biobased thermosetting plastic was used, which makes the composite panel unique with a very high percentage of bio content.

The project achieved the objectives and provided new knowledge about the process and performance of jute composite laminates. Expected results and effects:

According to Ecoist AB, the battery boxes based on JuteTech met the functional requirements and were somewhat lighter in comparison with fiberglass reinforcement. The PET sandwich absorbed more resin than the PVC sandwich, which affected the weight. The working environment with jute fabric was significantly better compared to fiberglass.

Plasma treatment of the jute reinforcement significantly increased wetting but did not provide reinforcement of the laminate in our mechanical tests. The parties intend to jointly write a scientific article with Högskolan Borås as responsible. Approach and implementation:

Juteborg AB, was project manager and provided different types of jute and jute expertise. Ecoist AB defined the requirements, produced the battery boxes with the help of Ljungby Komposit AB. Rise carried out and evaluated several material tests and process techniques, including Plasma treatment, and developed alternative sandwich prototypes of lids for the battery box, in close collaboration with Ecoist AB.

The most promising jute composites were sent to Högskolan Borås who conducted mechanical property tests on 8 varieties of jute composites.