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Development and Characterization of a Functional Foam Block by Using Waste Coffee Powder
New Phys.: Sae Mulli 2018; 68: 25~31
Published online January 31, 2018;
© 2018 New Physics: Sae Mulli.

Joo Hyun LEE1,2, Minseok KWAK3, Hyun Kyoung YANG*1

1 Department of LED Convergence Engineering, Pukyong National University, Busan 48547, Korea
2 Mc Qan New Materials Co., Busan 48547, Korea
3 Department of Chemistry, Pukyong National University, Busan 48514, Korea
Correspondence to:
Received October 11, 2017; Revised November 24, 2017; Accepted November 27, 2017.
cc This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Currently, the cost of recycling waste coffee powder is increasing as the domestic coffee market grows. Therefore, a more efficient way to recycle waste coffee powder is needed. In this study, waste coffee powder was used in a new form through the production of foam blocks made of such waste coffee powder. The characteristics of the compressive strength of the foam blocks depended on the raw materials. Therefore, foam blocks that can be applied in various construction fields can be produced by using various manufacturing processes. The compression strength of CFB-362 (coffee-foam block with KSL-362 added) foam blocks was 2.31 MPa, and the far-infrared emissivity and emission power of the CFB-362 form blocks were confirmed to be 0.917 and 369.610 W/(m$^2$$\cdot$$\mu$m), respectively. The deodorization rates of the CFB-362 form blocks for NH$_3$ and H$_2$S were 83.7% and 99.8%, respectively. The foam blocks were shown to satisfy the emission standard for environmentally hazardous substances. As a result, we confirmed that the foam blocks had more various functionalities than conventional bricks did and that they could be applied as building materials in various fields.
PACS numbers: 81.05.Je
Keywords: Foaming block, Waste coffee powder, Construction materials

May 2018, 68 (5)
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