电子废弃物理化性质研究

Research on the Physical and Chemical Properties of Electronic Wastes

通过实验研究了印刷线路板和覆铜板厚度、热值及含水率等理化性质,并对其中的金、铜等贵金属含量进行了测定。结果显示,PCB和CCL的厚度分别是0.108 cm和0.054 cm;PCB和CCL的高位定容弹筒发热量分别为8 310 J/g和9 320 J/g;PCB和CCL的含水率分别为接近1.3%和接近0.8%;PCB和CCL中的铜质量分数分别达到30%和50%;PCB中的金质量浓度为24.86 mg/kg。

In this paper,the experiment studies the physical and chemical properties of PCB（Printed Circuit Board referred to as PCB） and CCL（Copper-Clad Laminate referred to as CCL）,such as thickness,heat value and moisture content and so on,and also measures the contents of precious metals,such as gold,copper and so on.The results show that,the thickness of PCB and CCL is 0.108 cm and 0.054 cm respectively,high calorific constant volume of them is 8 310 J/g and 9 320 J/g,water content is close to 1.3% and 0.8%,content of copper in them reaches 30% and 50% respectively and that of gold in PCB reaches 24.86 mg/kg.