Year: 2022
Type: article
Abstract: This research aims to create and to test a mechanical property, including a performance of natural fiber-based polishing pad produced by using fibers of coconut coir and rice straw mixed with polyurethane. After sizing, those fibers will be mixed with polyurethane at ratios of 5, 7.5, and 10 phr to form as polishing pad before measure a hardness and test a performance in sapphire chemical mechanical polishing. The experiment results showed that natural fiber-based polishing pads could be formed and stable. The natural fibers in polishing pads distributed all contact surface. Hardness of natural fiber-based polishing pads was smaller than conventional pad in range of 3.6–11.7%. Polishing results revealed that polishing pads made from coconut coir mixed with polyurethane at mixing ratio of 10 phr, and rice straw fiber mixed with polyurethane at mixing ratio of 7.5 phr could produce surface roughness of sapphire as 1.0 and 1.3 nm, respectively. Both pads produced the similar highest material removal rate of 0.015 m/hr or 30% of polishing result obtained conventional pad. These results indicate that both fibers able to be used as a material to manufacture a polishing pad for adding value and reducing the waste from the agricultural.
Language: Thai
Subfield: Industrial and Manufacturing Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7215435245