Development of Polydiacetylene Embedded Polyurethane Nanocomposites as a Mask for Sensing and Filtering Fine Dust

다국어 초록 (Multilingual Abstract)

The importance of fine dust has been recognized around the world, and research has been conducted on variousregulatory devices and protection devices. In this study, we prepared PU/PDA(polyurethane/polydiacetylene) nanofibercomposite materials using 10,12-pentacosadiynoic acid (PCDA) and polyurethane (PU), which have color transitionphenomena, to develop mask materials that can detect and block fine dust. PCDA was mixed with polyurethane as thesupporting polymer, and the solution was electrospun to produce nanofiber composites on a polypropylene spunbondnonwoven substrate. Then, the nanocomposites were photopolymerized using UV irradiation to produce PU/PDA nanofibercomposites with the diameters of the fibers ranging from 129-254 nm at various mass ratios of PU to PCDA. As the massratios increased from 4:1 to 6:1, the diameters of the nanofibers also increased. By using the PP spunbond nonwovenmaterial, the PU/PDA fibrous membranes (basis weight: 3 g/m2) had tensile strengths approaching 3.0-3.5 kgf/cm2. The aspreparednanocomposites with comparable air permeability (112 mm/s) had surprisingly high filtration efficiencies (97.8-99.6 %) and low pressure drops (56.9-61.78 Pa) for sodium chloride aerosol particles in the range of 400-600 nm and paraffinaerosol particles with an average particle diameter of 400 nm. The colorimetric response was more sensitive in the nanofibersmade with a high mass ratio of PU to PCDA, i.e., up to 80 μg/m3 of fine dust. A clear visual color transition was observedwhen the concentration of the fine dust was 100 μg/m3. It was confirmed that the visual color transition appeared clearlyenough to be distinguished easily by the naked eye, even in the nanofibers with lower contents of PDA.

참고문헌 (Reference)

1 J. A. Ailshire, 70 : 322-, 2015

2 J. Matulevicius, 92 : 27-, 2016

3 P. Heikkila, 48 : 1168-, 2008

4 J. Lee, 21 : 2648-, 2011

5 L. Yin, 21 : 5141-, 2014

6 C. A. Pope III, 56 : 709-, 2006

7 D. R. Gold, 127 : 1903-, 2013

8 J. T. Zelikoff, 15 : 131-, 2003

9 J. Dia, 203 : 116-, 2015

10 M. Wang, 66 : 97-, 2014

11 M. Kampa, 151 : 362-, 2008

12 S. Cavaliere, 4 : 4761-, 2011

13 T. J. Sill, 29 : 1989-, 2008

14 Z. Su, 4 : 52598-, 2014

15 N. Wang, 126 : 44-, 2014

16 P. Khude, 6 : 1-, 2017

17 Q. Zhang, 41 : 230-, 2010

18 L. Bao, 159 : 100-, 2016

19 K. Kosmider, 39 : 20-, 2002

20 X. Qian, 31 : 1196-, 2019

21 R. W. Carpick, 16 : 1270-, 2000

22 S. Ryu, 131 : 3800-, 2009

23 Q. Cheng, 14 : 1974-, 1998

24 U. Jonas, 121 : 4580-, 1999

25 M. O. Kim, 6 : 105372-, 2019

26 M. O. Kim, 7 : 085405-, 2020

27 S. Lee, 40 : 9201-, 2007

28 F. Jannah, 169 : 15-, 2019

29 I. S. Park, 49 : 1270-, 2016

30 Y. Chen, 61 : 969-, 2018

31 K. H. Lee, 41 : 1256-, 2003

32 J. P. Yapor, 2 : 7334-, 2017

33 V. V. Kadam, 47 : 2253-, 2018

34 S. Sundarrajan, 75 : 159-, 2014

35 R. A. Abuzade, 126 : 232-, 2012

36 P. W. Gibson, 45 : 190-, 1999

37 B. Maze, 38 : 550-, 2007

38 N. Vitchuli, 116 : 2181-, 2010

39 C. Hung, 79 : 34-, 2011

40 R. Yang, 66 : 153-, 2015

41 R. Uppal, 14 : 660-, 2013

42 OECD, "The Cost of Air Pollution : Health Impacts of Road Transport" OECD Publishing 2014

43 Ministry of Environment, "Recent Status of Fine Dust and Countermeasures"

44 Vahid Mottaghitalab, "A study on electrospinning of polyacrylonitrile nanofibers" 한국화학공학회 28 (28): 114-118, 2011