Mechanical, morphology, crystallisation and melting behaviour of polypropylene composites reinforced by non-metals recycled from waste printed circuit boards

2020 ◽  
pp. 1-10
Author(s):  
Xu Xiong ◽  
Libo Ma ◽  
Zhimiao Zhang ◽  
Haicun Yang
Keyword(s):  
Printed Circuit Boards ◽  
Melting Behaviour ◽  
Circuit Boards ◽  
Polypropylene Composites ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards

scholarly journals Polypropylene Composites Reinforced by Nonmetallic from Waste Printed Circuit Boards Using Spout-Fluid Bed Coating with PP Particles Enhance Fluidization

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3106
Author(s):  
Man Wu ◽  
Jingxia Jiang ◽  
Cuiping Meng ◽  
Xiude Hu ◽  
Henglai Xie ◽  
...  
Keyword(s):  
Printed Circuit Boards ◽  
Circuit Boards ◽  
Polypropylene Composites ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards ◽  
Fluid Bed ◽  
Coating Methods ◽  
Ft Ir ◽  
Fluid Bed Coating

Nonmetallic materials recycled from waste printed circuit boards (N-WPCBs) were modified by coating KH-550 in a spout-fluid bed. To improve the effect of the modification, PP particles were used to enhance the fluidization quality of the N-WPCB particles in the coating modification. Then, the modified N-WPCBs were used as fillers to fabricate PP/N-WPCB composites. The method of coating in a spout-fluid bed with PP particles enhanced fluidization and showed the best modification effect compared to other coating methods. The FT-IR and SEM results demonstrated that interfacial bonding between N-WPCBs and PP could be enhanced by modified N-WPCBs, which improved the mechanical properties of the composites. When the mass ratio of PP to N-WPCBs is 100:75 and the dose of KH-550 is 4 phr, the flexural strength, tensile strength, and impact strength of the composites increase by 16.60%, 23.22%, and 23.64%, respectively. This would realize the high-value utilization of N-WPCBs with coating modification in the spout-fluid bed.

LEACHING OF METALS FROM WASTE PRINTED CIRCUIT BOARDS (WPCBs) USING SULFURIC AND NITRIC ACIDS

2014 ◽  
Vol 13 (10) ◽  
pp. 2601-2607 ◽  
Author(s):  
Jae-chun Lee ◽  
Manoj Kumar ◽  
Min-Seuk Kim ◽  
Jinki Jeong ◽  
Kyoungkeun Yoo
Keyword(s):  
Printed Circuit Boards ◽  
Circuit Boards ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards
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