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J.J. Joustra

13 records found

Reverse forming thermoplastic composites

Design and process development

Structural reuse is a promising alternative to recycling of composite materials; it preserves material composition while liberating the materials for reuse in secondary applications. Thermoplastic reinforced composite materials have the potential to expand reuse opportunities by ...

Does the Rubber Meet the Road?

Assessing the Potential of Devulcanization Technologies for the Innovation of Tire Rubber Recycling

Innovation is crucial to meet the circular economy goals for tire recycling. Devulcanization, an innovative recycling method of reprocessing tire rubber, offers a pathway towards achieving circular economy objectives. While previous research on devulcanization has primarily focus ...

Structural Reuse by Design

Reusing wind turbine blades for building applications

Construction industry needs large volumes of materials and has a large carbon footprint. And although wind energy is renewable, the blades are hard to recycle leading to material waste. Our goal is to form a virtuous loop between these sectors by reusing wind turbine blades as co ...

IEA Wind TCP Task 45 Deliverable 2.3

Evaluating Recyclability of wind turbine blades

This document has been prepared in support of IEA Wind Task 45, Subtask 2.1 “Prevention of waste”, Subtask 2.2 on the “Reuse and repurpose of end-of-life wind turbine blades” and Subtask 2.3 on “Recycling and recovery methods”. This document is the outcome of a workshop and a ser ...

Circular applications through selection strategies (CATSS)

A methodology for identifying reuse applications for end-of-life wind turbine blades

Wind turbines are crucial for the energy transition, but their end-of-life treatment presents a challenge. Most wind turbine blades, made from composites, are currently sent for disposal or recycled through methods that degrade the value of the material. Structural reuse through ...

Circular Composites by Design

Testing a Design Method in Industry

The design of composite products for a circular economy is challenging. Materials such as glass-fibre-reinforced plastics have long product lifetimes but are hard to recycle. For the effective reuse and recycling of products, parts, and materials, recovery strategies must be sele ...

Circular Composites

Design strategies for products containing composite materials in a circular economy

In this dissertation, I investigate how to design products for a circular economy using composite materials. The circular economy is a potential solution to achieving a sustainable use of resources. Reuse of products and recycling materials lowers pressure on resource stocks, sav ...

Structural reuse of high end composite products

A design case study on wind turbine blades

Composite materials, in particular fibre reinforced polymers, present a challenge when reaching their end of life. Current recycling processes are unable to capture the high-end material quality, thus challenging (re)use of composite materials in a Circular Economy. Structurally ...

Circular Design of Composite Products

A Preliminary Framework Based on Insights from Literature and Industry

Composite materials are an attractive material choice as they enable lightweight, low maintenance products with a long lifespan. But closing the loop for these materials in a Circular Economy (CE) is challenging, especially for thermoset composites. In a CE, products should be de ...

Circular design of composite products

A framework based on insights from literature and industry

Composite materials are an attractive material choice as they enable lightweight, low-maintenance products with a long lifespan. Recycling these materials, however, remains a chal-lenge. Homogeneous material composition and the use of thermoset matrices complicate repro-cessing, ...
Composite materials offer many advantages during the use phase, but recovery at the end of a lifecycle remains a challenge. Structural reuse, where an end of life product is segmented into construction elements, may be a promising alternative. However, composites are often used i ...

Offshore wind farm decommissioning

An orientation of possible economic activity in the south holland region and the rotterdam port area

A significant part of wind energy in the Netherlands is generated by offshore wind farms at sea. In the coming decades, the number of wind farms will be scaled up in line with current energy transition and sustainability objectives. What happens to these wind turbines when they r ...