• Title/Summary/Keyword: VOC Analyzer

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Development of Simple Test Method using VOC Analyzer to Measure Volatile Organic Compounds Emission for Particleboards (VOC Analyzer를 이용한 파티클보드로부터 방산되는 휘발성유기화합물의 간이 측정방법 개발)

  • An, Jae-Yoon;Kim, Sumin;Kim, Jin-A;Kim, Hyun-Joong;Mun, Suck-Joong
    • Journal of the Korean Wood Science and Technology
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    • v.34 no.4
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    • pp.22-30
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    • 2006
  • The volatile organic compound (VOC) Analyzer is a portable device to measure the four main aromatic hydrocarbon gases: toluene, ethylbenzene, xylene and styrene. With the VOC Analyzer, a semiconductor gas sensor eliminates the need for the carrier gas which is required for conventional gas chromatographs. In addition, since the semiconductor gas sensor is supersensitive to gas components, it is not necessary to use a conventional gas concentrator or other complicated equipment. Compared with other measurement methods, the VOC analyzer is useful for measuring toluene, ethylbenzene, xylene and styrene in wood-based panel because of its ease in obtaining field results and repeating the test. The VOC Analyzer primarily measures four VOC in the air. In this study, we designed a test method of VOC measurement for particle board. A specimen was sealed in 3L polyester bag, after 96hours we could measure maximum VOC emission level that is a stabilized VOC Value. For easy, fast and economic testing of TVOC emission from wood-based panel, we developed the test method with the VOC Analyzer. The VOC Analyzer is expected to gain widespread use in the manufacturing field where a quick and easy test for VOC emission from wood-based panel is required. Furthermore, the VOC Analyzer promises to become an easier, faster and more economic technique than the currently used standard methods.

Test Method Using VOC Analyzer to Measure VOC Emission of Paints for Wood-based Panel (VOC Analyzer를 이용한 목재용 도료의 휘발성유기화합물의 간이측정)

  • Eom, Young Geun;Kim, Ki-Wook;An, Jae-Yun;Kim, Hyun-Joong;Moon, Suck-Joong
    • Journal of the Korean Wood Science and Technology
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    • v.35 no.6
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    • pp.65-72
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    • 2007
  • The VOC (volatile organic compound) analyzer is devised to measure the four main aromatic hydrocarbon gases: toluene, ethylbenzene, xylene and styfene. It is not affected by ambient temperature and humidity. In addition, standby and measuring time of VOC Analyzer is a short as below 30 min and 8 min, respectively. Since the semiconductor gas sensor is supersensitive to gas components, it is not necessary to use a conventional gas concentrator or other complicated equipment. In this study, VOC emission behavior from 4 types paints (lacquer, urethane vanish, water-base paint, enamel paint) for wood-based panel was investigated using VOC Analyzer. After a specimen was spreaded on aluminum foil ($6.32{\times}6.32cm$) in $3{\ell}$ polyester bag, after 24 hours we could measure maximum VOC emission level that is a stabilized VOC value. Xylene of VOCs was high emitted from lacquer, urethane vanish and water-based paint, and TVOC (Toluene + Ethylbenzene + Xylene + Styrene) of lacquer was the highest emission concentration than another.

Environment-friendly Adhesives for Fancy Veneer Bonding of Engineered Flooring to Reduce Formaldehyde and TVOC Emissions

  • Kim, Sumin;Kim, Hyun-Joong;Xu, Guang Zhu;Eom, Young Geun
    • Journal of the Korean Wood Science and Technology
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    • v.35 no.5
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    • pp.58-66
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    • 2007
  • The objective of this research was to develop environment-friendly adhesives for face fancy veneer bonding of engineered flooring. Urea-formaldehyde (UF)-tannin and melamine-formaldehyde (MF)/PVAc hybrid resin were used to replace UF resin in the formaldehyde-based resin system in order to reduce formaldehyde and volatile organic compound (VOC) emissions from the adhesives used between plywoods and fancy veneers. Wattle tannin powder (5 wt%) was added to UF resin and PVAc (30 wt%) to MF resin. These adhesive systems showed better bonding than commercial UF resin with a similar level of wood penetration. The initial adhesion strength was sufficient to be maintained within the optimum initial tack range. The standard formaldehyde emission test (desiccator method) and VOC analyzer were used to determine the formaldehyde and VOC emissions from engineered flooring bonded with commercial UF resin, UF-tannin and MF/PVAc hybrid resin. By desiccator method, the formaldehyde emission level of UF resin showed the highest but was reduced by replacing with UF-tannin and MF/PVAc hybrid resin. MF/PVAc hybrid satisfied the $E_1$ grade (below $1.5mg/{\ell}$). VOC emission results by VOC analyzer were similar with the formaldehyde emission results. TVOC emission was in the following order: UF > UF-tannin > MF/PVAc hybrid resin.

The Formaldehyde/VOCs Emission of Particleboard with Cross-linked Vinyl Resin (변성 비닐계 접착제를 이용한 파티클보드의 포름알데히드/VOCs 방산특성)

  • Kim, Ki-Wook;Lee, Se Na;Baek, Bong-San;Lee, Byong-Ho;Kim, Hyun-Joong;Choi, Younmee;Jang, Seong Wook
    • Journal of Adhesion and Interface
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    • v.9 no.1
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    • pp.28-34
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    • 2008
  • This study was used particleboard with urea-formaldehyde resin and cross linking vinyl resin. Manufactured particleboard had high cross linking vinyl resin content that internal bonding strength was low value but flexural strength was increased. For emission test of particleboard using VOC Analyzer, it was confirmed that more cross linking vinyl resin had reduced 4 volatile organic compounds (Toluene, Ethylbenzen, Xylene, Styrene) but also TVOC (Total VOC), 5 VOCs (Benzene, Toluene, Ethylbenzen, Xylene, Styrene) and formaldehyde emissions from manufactured particleboard were also lower emission factor than particleboard with only urea formaldehyde resin.

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Study on Desorption Reaction of VOC Produced from Manufacturing of Chemical Products (화학제품 제조업에서 발생한 VOC의 탈착반응 연구)

  • Park, Kuny-Ik;Yoon, Sung-Min;Kim, Joo-Yeon;Kil, In-Sub;Park, Hi-Jae;Rhee, Young-Woo
    • Applied Chemistry for Engineering
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    • v.21 no.5
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    • pp.505-508
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    • 2010
  • The characteristics of desorption reaction for spent activated carbon produced from the manufacture of other chemical products in Shiwha/Banwal industrial complex were investigated. TGA (Thermogravimetric Analyzer) was used to study for characteristics of desorption and kinetics. Then Friedman method and Freeman-carroll method were used to find the activation energy and the order of reaction. Activation energy by Friedman method was 24.82~46.49 kJ/moL. And then activation energy and order of reaction by Freeman-carroll method were 8.77~32.26 kJ/moL and 0.11~1.69.

Investigation on Desorption Reaction and Heating Value of Used Activated Carbons Collected from VOC Adsorption Towers (휘발성 유기화합물 흡착탑 폐활성탄의 탈착반응 및 열량특성 연구)

  • Yoon, Sung-Min;Kim, Joo-Yeon;Park, Kun-Yik;Yoon, Soo-Kyung;Kil, In-Sub;Park, Hui-Jae;Rhee, Young-Woo
    • Clean Technology
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    • v.16 no.1
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    • pp.33-38
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    • 2010
  • The characteristics of desorption reaction and the heating values of used activated carbons collected from the companies of Shiwha/Banwal industrial complex were investigated. The desorption characteristics of used activated carbons were analyzed based on the data obtained from a thermogravimetric analyzer. The activation energies and reaction orders for desorption reaction of used activated carbons were calculated by employing Freeman-Carroll method. Heating values of volatile organic compounds(VOC) desorbed from used activated carbons were estimated based on the data obtained from a total hydrocarbon analyzer. It was found that the reaction orders of desorption of used activated carbons were 0.1~0.8, their desorption activation energies, 6.9~26.4 kJ/mol, and VOC heating values, 0.4~10.7 kcal/kg.

A Study on the Distributions of VOC Concentrations in Shiwha Area (시화지구에서 발생되는 VOCs 농도분포 특성 연구)

  • Kim Jin-Yong;Lee Hyo-Song;Yu Jae-Keun;Kil In-Sub;Kim Duk-Hyun;Rhee Young-Woo
    • Journal of Korean Society for Atmospheric Environment
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    • v.21 no.6
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    • pp.613-624
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    • 2005
  • In this study, we investigated the characteristic of volatile organic compounds (VOCs) concentrations in Shiwha area, which were measured using the Open-path FTIR Gas Analyzer. The passive samplers were set for a certain period of time to obtain the average concentration of toluene, ethylbenzene, o-xylene and styrene. In addition, VOCs concentration contour maps were constructed using the Tecplot program to illustrate the VOCs concentration distribution. The residential area showed higher concentrations than the industrial area. And the summer had higher concentration value than the winter. Also, we confirmed that the VOCs concentrations ranged from 2 to several tens ppb in the vicinity of an industry than diffused VOC concentration, whereas those ranged from 0 to 5 ppb in most other areas. It was conferred that the wind change with seasons significantly affects the distribution of VOCs concentrations such as a northwesterly wind in the winter or a southwestern wind in the summer.

Analysis of Volatile Organic Compounds Emitted from Electronic Parts in PC/Monitor Set (PC/Monitor 구성 전자부품에서 방출되는 휘발성 유기화합물의 분석)

  • Ri, Chang Seop;Choe, Jong Woo;Baek, Kyu Won
    • Journal of the Korean Chemical Society
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    • v.44 no.4
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    • pp.343-349
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    • 2000
  • Volatile Organic Compounds(VOCs) emitted form electronicSince toluene, xylene, cyclohexanone, and benzofuran will bring on the deleterious smell and the health risk, eventhough very small amount of these areexposed to human body, quantitative analysis was achieved by GC-MS system. As a result of these analyses, except PCB(CEM-1) of which is one of the electronic parts, the left of electronic parts represented, imme-diately form 30 minutes to 1 hour after heating, the trends that toluene, xylene, cyclohexanone and phenol were consecuticely emitted very high. and toluene, xylene, phenol, cyclohexanone, and benzofuran from most of the electronic parts were emitted very frequently within the measuring period. Finally, Trans of electronic parts showed the highest concentration of emission, and xylene(550~2482 ${\mu}g/m^2$) was the most noticeably emitting compound of VOCs.

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Influence of Surface Finishing Material Types to Formaldehyde and Volatile Organic Compounds Emission from Plywood

  • Kim, Ki-Wook;Oh, Jin-Kyoung;Lee, Byoung-Ho;Kim, Hyun-Joong;Lee, Young-Kyu;Kim, Sung-Hun;Kim, Gwan-Eui
    • Journal of the Korean Wood Science and Technology
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    • v.36 no.2
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    • pp.39-45
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    • 2008
  • Formaldehyde and volatile organic compounds (VOCs) are emitted from wood-based panels that have been made using wood particles, wood fiber, wood chips, formaldehyde-based resins and so on. In this study, we examined formaldehyde and total VOCs (TVOC) emission behaviors for plywood overlaid with water-soluble phenolic resin impregnated linerboard (PL), and two kinds of surface materials (decorative veneer and pre-impregnated finishing foil) that were adhered onto the PL that named DPL and PPL. EVA (ethyl vinyl acetate) was used to overlay the decorative veneer and pre-impregnated finishing foil on the plywood with water-soluble phenolic resin impregnated linerboard by a hot press instrument. The debonding test and accelerated aging test were conducted to assess their mechanical properties. Formaldehyde and TVOC emission concentrations were measured using the FLEC method and a VOC Analyzer, respectively. The debonding test results of PL, DPL and PPL were 1.2, 1.5, and $0.5N/mm^2$, respectively. The surface appearance of the samples were not changed after the accelerated aging test. The PL and DPL exhibited reduced formaldehyde and TVOC emission levels, respectively. In the case of PPL, the VOC value was relatively higher than those of PL and DPL.

Investigation on Desorption Characteristics of VOCs Adsorbed on used Activated Carbons Collected from Painting Process (도장공정에서 수거한 폐활성탄에 흡착된 VOCs의 탈착특성 연구)

  • Kim, Joo Yeon;Yoon, Sung Min;Park, Kunyik;Yoon, Soo Kyung;Kil, In Sub;Park, Hui Jae;Rhee, Young-woo
    • Korean Chemical Engineering Research
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    • v.48 no.6
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    • pp.752-756
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    • 2010
  • Desorption reaction characteristics of the used activated carbons collected from painting process in Shiwha/Banwal industrial complex were investigated. Thermogravimetric analyzer was used to investigate the desorption characteristics. Activation energies and reaction orders for desorption reaction characteristics of used activated carbons were estimated by employing Friedman method and Freeman-Carroll method. In the used activated carbons collected from painting process, it was found that the activation energies were 20.6~43.2 kJ/mol in Friedman method and 12.3~26.5 kJ/mol in Freeman-carroll method, and reaction orders were 0.1~1.7.