Comparative study of selected indoor concentration from selective laser sintering process using virgin and recycled polyamide nylon (pa12)
Additive manufacturing (AM) stands out as one of the promising technologies that have huge potential towards manufacturing industry. The study on additive manufacturing impact on the environment and occupational exposure are attracting growing attention recently. However, most of the researcher f...
| Main Authors: | , , , , , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/3388/1/KP%202020%20%2864%29.pdf |
| _version_ | 1825637065731080192 |
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| author | Damanhuri, A A M Subki, A S A Hariri, A Tee, B T Fauadi, M H F M Hussin, M S F Mustafa, M S S |
| author_facet | Damanhuri, A A M Subki, A S A Hariri, A Tee, B T Fauadi, M H F M Hussin, M S F Mustafa, M S S |
| author_sort | Damanhuri, A A M |
| collection | UTHM |
| description | Additive manufacturing (AM) stands out as one of the promising technologies that
have huge potential towards manufacturing industry. The study on additive manufacturing
impact on the environment and occupational exposure are attracting growing attention recently.
However, most of the researcher focus on desktop and fused deposition modelling type and less
attention given to the industrial type of AM. Usually, during the selective laser sintering process,
recycle powder will be used again to reduce cost and waste. This article compares the PM 2.5,
carbon dioxide (CO2) and total volatile organic compound (TVOC) concentration between virgin
and recycles powder using polyamide-nylon (PA12) towards indoor concentration. Four phases
of sampling involve during air sampling accordingly to the Industry Code of Practice on Indoor
Air Quality 2010 by DOSH Malaysia. It was found that PM 2.5 and CO2
concentration are mainly
generated during the pre-printing process. The recycle powder tended to appear higher compared
to virgin powder in terms of PM 2.5, and CO2. The peak value of PM 2.5 is 1452 μg/m3 and CO2
is 1218 ppm are obtained during the pre-printing process during 8 hours of sampling. TVOC
concentration from recycling powder is slightly higher during the post- printing phase where
confirm the influence of the powder cake and PA12 temperature from the printing process. In
summary, this work proves that elective laser sintering (SLS) machine operators are exposed to
a significant amount of exposure during the SLS printing process. Mitigation strategies and
personal protective equipment are suggested to reduce occupational exposure. |
| first_indexed | 2024-03-05T21:45:39Z |
| format | Conference or Workshop Item |
| id | uthm.eprints-3388 |
| institution | Universiti Tun Hussein Onn Malaysia |
| language | English |
| last_indexed | 2024-03-05T21:45:39Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | uthm.eprints-33882021-11-02T03:04:13Z http://eprints.uthm.edu.my/3388/ Comparative study of selected indoor concentration from selective laser sintering process using virgin and recycled polyamide nylon (pa12) Damanhuri, A A M Subki, A S A Hariri, A Tee, B T Fauadi, M H F M Hussin, M S F Mustafa, M S S TJ1040-1119 Machinery exclusive of prime movers Additive manufacturing (AM) stands out as one of the promising technologies that have huge potential towards manufacturing industry. The study on additive manufacturing impact on the environment and occupational exposure are attracting growing attention recently. However, most of the researcher focus on desktop and fused deposition modelling type and less attention given to the industrial type of AM. Usually, during the selective laser sintering process, recycle powder will be used again to reduce cost and waste. This article compares the PM 2.5, carbon dioxide (CO2) and total volatile organic compound (TVOC) concentration between virgin and recycles powder using polyamide-nylon (PA12) towards indoor concentration. Four phases of sampling involve during air sampling accordingly to the Industry Code of Practice on Indoor Air Quality 2010 by DOSH Malaysia. It was found that PM 2.5 and CO2 concentration are mainly generated during the pre-printing process. The recycle powder tended to appear higher compared to virgin powder in terms of PM 2.5, and CO2. The peak value of PM 2.5 is 1452 μg/m3 and CO2 is 1218 ppm are obtained during the pre-printing process during 8 hours of sampling. TVOC concentration from recycling powder is slightly higher during the post- printing phase where confirm the influence of the powder cake and PA12 temperature from the printing process. In summary, this work proves that elective laser sintering (SLS) machine operators are exposed to a significant amount of exposure during the SLS printing process. Mitigation strategies and personal protective equipment are suggested to reduce occupational exposure. 2019 Conference or Workshop Item PeerReviewed text en http://eprints.uthm.edu.my/3388/1/KP%202020%20%2864%29.pdf Damanhuri, A A M and Subki, A S A and Hariri, A and Tee, B T and Fauadi, M H F M and Hussin, M S F and Mustafa, M S S (2019) Comparative study of selected indoor concentration from selective laser sintering process using virgin and recycled polyamide nylon (pa12). In: 2019 Theory & Technique International Aerosol Conference and Malaysia Air Quality Annual Symposium (T&T IAC and MAQAS), 7 - 8 August 2019, Balik Pulau Hotel, Malacca, Malaysia. (Submitted) https:dx.doi.org//10.1088/1755-1315/373/1/012014 |
| spellingShingle | TJ1040-1119 Machinery exclusive of prime movers Damanhuri, A A M Subki, A S A Hariri, A Tee, B T Fauadi, M H F M Hussin, M S F Mustafa, M S S Comparative study of selected indoor concentration from selective laser sintering process using virgin and recycled polyamide nylon (pa12) |
| title | Comparative study of selected indoor concentration from
selective laser sintering process using virgin and recycled
polyamide nylon (pa12) |
| title_full | Comparative study of selected indoor concentration from
selective laser sintering process using virgin and recycled
polyamide nylon (pa12) |
| title_fullStr | Comparative study of selected indoor concentration from
selective laser sintering process using virgin and recycled
polyamide nylon (pa12) |
| title_full_unstemmed | Comparative study of selected indoor concentration from
selective laser sintering process using virgin and recycled
polyamide nylon (pa12) |
| title_short | Comparative study of selected indoor concentration from
selective laser sintering process using virgin and recycled
polyamide nylon (pa12) |
| title_sort | comparative study of selected indoor concentration from selective laser sintering process using virgin and recycled polyamide nylon pa12 |
| topic | TJ1040-1119 Machinery exclusive of prime movers |
| url | http://eprints.uthm.edu.my/3388/1/KP%202020%20%2864%29.pdf |
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