Abstract
During the past decade, polymer nanocomposites have emerged as a novel and rapidly developing class of materials and attracted considerable investment in research and development worldwide. However, there is currently a lack of information available in the literature on the emission rates of particles from these material. In this study, real-time characterization of the size distribution and number concentration of sub-micrometer-sized particles (5.6-512 nm) emitted from polyamide 6 nanocomposites during mechanical drilling was made. For the first time, four different silica based filler of commonly use were assessed. Further, the respective emission rates were determined based on the particle population and the time. The measurements showed that the particle emission rates ranged from 1.16E+07 (min-1) to 1.03E+09 (min -1) and that the peak diameters varied from 29.6 to 75.1 nm. Airborne particles in the nanometer range (11.1-46.8 nm), in the ultrafine range (51.3-101.1 nm) and in the accumulation mode range (111.9-521 nm) accounted for 34.1% to 76.6%, 8.3% to 47% and 4.1% to 24.2% of the total emission rates, respectively, depending on the type of filler. Additionally, deposited particles were sampled and characterized, to explore any possible correlation between deposited and airborne particles. The result clearly showed that with increasing airborne particle concentration the deposit particle concentration decreased and vice verse.
| Original language | English |
|---|---|
| Article number | 012012 |
| Journal | IOP Conference Series: Materials Science and Engineering |
| Volume | 40 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Dec 2012 |
| Event | International Conference on Structural Nano Composites, NANOSTRUC 2012 - Bedfordshire, United Kingdom Duration: 2 Jul 2012 → 4 Jul 2012 |
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ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
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Physical characteristics of nanoparticles emitted during drilling of silica based polyamide 6 nanocomposites. / Sachse, Sophia; Silva, Francesco; Irfan, Adeel; Zhu, Huijun; Pielichowski, Krzysztof; Leszczynska, Agnieszka; Blazquez, Maria; Kazmina, Olga; Kuzmenko, Oleksandr; Njuguna, James.
In: IOP Conference Series: Materials Science and Engineering, Vol. 40, No. 1, 012012, 01.12.2012.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Physical characteristics of nanoparticles emitted during drilling of silica based polyamide 6 nanocomposites
AU - Sachse, Sophia
AU - Silva, Francesco
AU - Irfan, Adeel
AU - Zhu, Huijun
AU - Pielichowski, Krzysztof
AU - Leszczynska, Agnieszka
AU - Blazquez, Maria
AU - Kazmina, Olga
AU - Kuzmenko, Oleksandr
AU - Njuguna, James
PY - 2012/12/1
Y1 - 2012/12/1
N2 - During the past decade, polymer nanocomposites have emerged as a novel and rapidly developing class of materials and attracted considerable investment in research and development worldwide. However, there is currently a lack of information available in the literature on the emission rates of particles from these material. In this study, real-time characterization of the size distribution and number concentration of sub-micrometer-sized particles (5.6-512 nm) emitted from polyamide 6 nanocomposites during mechanical drilling was made. For the first time, four different silica based filler of commonly use were assessed. Further, the respective emission rates were determined based on the particle population and the time. The measurements showed that the particle emission rates ranged from 1.16E+07 (min-1) to 1.03E+09 (min -1) and that the peak diameters varied from 29.6 to 75.1 nm. Airborne particles in the nanometer range (11.1-46.8 nm), in the ultrafine range (51.3-101.1 nm) and in the accumulation mode range (111.9-521 nm) accounted for 34.1% to 76.6%, 8.3% to 47% and 4.1% to 24.2% of the total emission rates, respectively, depending on the type of filler. Additionally, deposited particles were sampled and characterized, to explore any possible correlation between deposited and airborne particles. The result clearly showed that with increasing airborne particle concentration the deposit particle concentration decreased and vice verse.
AB - During the past decade, polymer nanocomposites have emerged as a novel and rapidly developing class of materials and attracted considerable investment in research and development worldwide. However, there is currently a lack of information available in the literature on the emission rates of particles from these material. In this study, real-time characterization of the size distribution and number concentration of sub-micrometer-sized particles (5.6-512 nm) emitted from polyamide 6 nanocomposites during mechanical drilling was made. For the first time, four different silica based filler of commonly use were assessed. Further, the respective emission rates were determined based on the particle population and the time. The measurements showed that the particle emission rates ranged from 1.16E+07 (min-1) to 1.03E+09 (min -1) and that the peak diameters varied from 29.6 to 75.1 nm. Airborne particles in the nanometer range (11.1-46.8 nm), in the ultrafine range (51.3-101.1 nm) and in the accumulation mode range (111.9-521 nm) accounted for 34.1% to 76.6%, 8.3% to 47% and 4.1% to 24.2% of the total emission rates, respectively, depending on the type of filler. Additionally, deposited particles were sampled and characterized, to explore any possible correlation between deposited and airborne particles. The result clearly showed that with increasing airborne particle concentration the deposit particle concentration decreased and vice verse.
UR - http://www.scopus.com/inward/record.url?scp=84874773547&partnerID=8YFLogxK
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U2 - 10.1088/1757-899X/40/1/012012
DO - 10.1088/1757-899X/40/1/012012
M3 - Conference article
VL - 40
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 1
M1 - 012012
ER -