Composites Recycling by Using Intumescent Flame-Retardant Concept

膨胀的 阻燃剂 材料科学 复合材料
作者
Oussema Kachouri,Julien Bardon,David Ruch,Abdelghani Laachachi
出处
期刊:Materials Science Forum 卷期号:1131: 15-20
标识
DOI:10.4028/p-020koq
摘要

A structural composite material is obtained by incorporating continuous and strong fibres in a polymer matrix. Such a design leads to materials with exceptional mechanical properties over a very small density. This family of composite materials can be extended further by combining special designs of composite sub-parts, like in honeycomb structures. Thanks to their performances, these composites are increasingly used in a range of applications mainly in the energy, construction, automotive and aerospace sectors. However, it is very difficult to dismantle composite materials in multi-material structures for recycling purposes; currently, they are mainly incinerated to produce energy. The present paper proposes adding “smart chemical additives” during composite manufacturing and assembly, which will facilitate both the separation of multi-material structures into single blocks, and the separation of composite sub-parts into raw materials. This innovative “debonding on-demand” function provides a significant incentive to using composite materials in a circular economy, i.e. promoting the repair, reuse and recycling of these materials.

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