Abstract
PCBs (Printed Circuit Boards) are important parts of electronic equipment and their use increases with technology development. Recycling of waste PCBs is challenging due to their complex structure and receives wide concerns as the amount of this type of waste is growing rapidly. In the article, the experiment of pyrolysis carried out with electronic waste sample was presented. The material employed in the present work was inverter of the LCD screen that it the example of the multilayer PCB. The correlation between pyrolysis temperature and gas emission from the system, which is associated with epoxy resin decomposition, is presented in the article.
Highlights
There is increasing concern about the volume of end-of-life electronics that is increasing due to technology development
In the present study pyrolysis experiment of waste Printed Circuit Boards (PCBs) has been investigated with the focus on determining correlation between pyrolysis temperature and the rate of gas emission from the system
Pyrolysis of Printed Circuit Board was carried out with original LCD screen inverter sample. This material is an example of multilayer PCB bonded with epoxy resin that is characterized by a small amount of built-in components
Summary
There is increasing concern about the volume of end-of-life electronics that is increasing due to technology development. Printed Circuit Boards (PCBs) are a common component of many electronic devices. A Printed Circuit Board can have multiple copper layers: a two-layer board has copper on both sides; multilayer boards have additional copper layers between layers of insulating material. FR-4 is the most common insulating substrate [1] It is a composite material composed of fiberglass cloth with an epoxy resin binder that is flame resistant. The treatment of waste PCBs is a challenging because of the diversity and complexity of materials and components [2]. PCB waste are mostly recycled to recover metals that have the highest value. Waste Printed Circuit Board pyrolysis has been investigated by a large number of researches [5]. The metals are still contained and may be recovered by further chemical, pyrometallurgical or mechanical processes. In the present study pyrolysis experiment of waste PCB has been investigated with the focus on determining correlation between pyrolysis temperature and the rate of gas emission from the system
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