• Title/Summary/Keyword: Antistatic

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A Study on the Effect of Aftertreating(Antistatic and Softening) Agents in Laundering (시판 세탁후처리제(대전방지 및 유연처리제)의 효과에 관한 연구)

  • Lee Yang Hun
    • Journal of the Korean Society of Clothing and Textiles
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    • v.9 no.2
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    • pp.27-34
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    • 1985
  • Cotton, P/C and polyester fabrics were laundered and treated with 4 kinds of aftertreating agent(antistatic and softening agents) on marketing. Some treating condition:. which include agent concenteration, treating time and rinsing extent after laundering, were varied. And then the effects of agents with each treating condition-handle value, charged voltage and half-life, and crease recovery etc.-were determined and discussed about their change. The improvement of handle and antistatic properties by treatment were indicated remarkably for cotton fabric and P/C and polyester fabrics respectively. Generally, the handle value of cotton was decreased and then increased again, and the charged voltage and half-life of P/C and polyester fabrics were decreased with increase of concenteration of agents. The effect of antistatic improvement for P/C fabric was larger than polyester fabric at even lower concenteration of agents. The effects were increased with treating time and rinsing extent. In particular, those of short time(1 minute) treatment were very small.

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Effect of Fabric Softner on the Absorbency, Stiffness and Antistatic Properties of Fabrics. (유연제 사용에 따른 직물의 흡수성.유연성.대전성 변화에 관한 연구)

  • 김언아
    • Journal of the Korean Home Economics Association
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    • v.31 no.2
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    • pp.189-203
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    • 1993
  • The objective of this study was to investigate the changes of the fabric absorbency, stiffness and antistatic property by using a fabric softner at laundering. The samples selected in this study were cotton and polyester fabrics. The cotton fabric was treated with 1/2 times(0.035%), 1 time(0.07%), 3 times(0.21%) and 10 times(0.7%) of the commercially suggested concentration (0.07%) of the fabric softner. And polyester fabric was done at 1 time(0.07%) of that. In order to examine the effect of the fabric by using a fabric softner, the abstraction of a surface active agent and quantitative analysis was performed by using a UV/VIS Spectroscopy and the correlations among the absorbency, stiffness and antistatic property was analyzed. The results obtained from this study were as follows; 1. In the cotton fabric, fabric softner gave the degradation of absorbency, and stiffness improvement was not shown by repeated fabric softner on the cotton fabric. 2. In the polyester fabric, the absorbency increased and the stiffness in creased very slightly. Specially, it is desirable to use fabric softner on the polyester due to improvement of antistatic property.

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Development of Functional Pulp Tray for Prevention of Static Electricity (정전기 방지를 위한 기능성 펄프 트레이 개발)

  • Lee, Ji-Young;Kim, Chul-Hwan;Nam, Hye-Gyeong;Park, Hyeong-Hun;Kwon, Sol;Lee, Young-Min
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.5
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    • pp.52-60
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    • 2015
  • Static electricity is an imbalance of electric charges within or on the surface of a material. All packed items that are particularly sensitive to static discharge must be protected by antistatic treatment. Otherwise, static electricity generated by an electrical insulator may cause serious damages to some sensitive electronics. In order to remove or prevent a buildup of static electricity, packed items must be treated with the application of an antistatic agent, which helps any excess charge to be evenly distributed. Functional pulp tray used for packing of electronic goods was developed with application of an antistatic agent. As the concentration of the antistatic agent increased, charging voltage and surface resistance of molded pulps decreased. The increase of humidity in surrounding atmosphere around molded pulps led to the decrease of accumulation of static charges. In conclusion, the surface treatment of the antistatic agent not only reduced or eliminated buildup of static electricity in the surface, but also prevented generation of tiny dirts from molded tray.

Synthesis and Characterization of Water-soluble Polyamine Durable Antistatic Agent (수용성 폴리아민 내구성 대전방지제의 합성과 그의 특성화)

  • Kim, Seung-Jin;Kim, Han-Ku;Keun, Jang-Hyoun;Park, Hong-Soo
    • Applied Chemistry for Engineering
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    • v.5 no.3
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    • pp.466-477
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    • 1994
  • PEG 600-diglycidyl ethers(PDE) were synthesized using $BF_3$ catalyst by the reaction of epichlorohydrin and PEG 600 which is known to have the hygroscopicity, softening property, and antistatic property. Water-soluble long chain polyamines(PDET) were synthesized by coreaction of PDE and triethylenetetramine which is high conductive aliphatic amine curing agent. To prevent the gelation of the PDET and increase the water-solution stability, water-soluble quaternary ammonium polyamines were synthesized by cationation of PDET with acetic acid. Antistatic agents PDET-2A, PDET-5A, PDET-6A, PDETA-2A and PDETA-4A were prepared by the mixing of PDET-2, PDET-5, PDET-6, PDETA-2 and PDETA-4 with water. Synthesized antistatic agents were treated on PET textiles with and without resin. Then surface electrical resistivity and half life characteristics value were tested. As the results there were no remarkable decreasing changes in antistatic abilities of the textiles treated with PDETA-2A and PDETA-4A after 50 times washing. So PDETA-2A and PDETA-4A were proved to be durable antistatic agents. Surface electrical resistivity of the textiles treated with PDETA-2A and PDETA-4A before washing were $1{\times}10^7{\Omega}$ and $2{\times}10^7{\Omega}$, respectively, and half life characteristics values were 0.8sec and 1.1sec, respectively. Therefore PDETA-2A and PDETA-4A were proved to be good antistatic agents.

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A study on the high transparent and antistatic thin films on sodalime glass by reactive pulsed DC magnetron sputtering (Pulsed DC 마그네트론 스퍼터링으로 제조한 소다라임 유리의 고투과 및 대전방지 박막특성 연구)

  • Jung, Jong-Gook;Lim, Sil-Mook
    • Journal of the Korean institute of surface engineering
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    • v.55 no.6
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    • pp.353-362
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    • 2022
  • Recently, transmittance of photomasks for ultra-violet (UV) region is getting more important, as the light source wavelength of an exposure process is shortened due to the demand for technologies about high integration and miniaturization of devices. Meanwhile, such problems can occur as damages or the reduction of yield of photomask as electrostatic damage (ESD) occurs in the weak parts due to the accumulation of static electricity and the electric charge on chromium metal layers which are light shielding layers, caused by the repeated contacts and the peeling off between the photomask and the substrate during the exposure process. Accordingly, there have been studies to improve transmittance and antistatic performance through various functional coatings on the photomask surface. In the present study, we manufactured antireflection films of Nb2O5, | SiO2 structure and antistatic films of ITO designed on 100 × 100 × 3 mmt sodalime glass by DC magnetron sputtering system so that photomask can maintain high transmittance at I-line (365 nm). ITO thin film deposited using In/Sn (10 wt.%) on sodalime glass was optimized to be 10 nm-thick, 3.0 × 103 𝛺/☐ sheet resistance, and about 80% transmittance, which was relatively low transmittance because of the absorption properties of ITO thin film. High average transmittance of 91.45% was obtained from a double side antireflection and antistatic thin films structure of Nb2O5 64 nm | SiO2 41 nm | sodalime glass | ITO 10 nm | Nb2O5 64 nm | SiO2 41 nm.

Photocatalyst Effect of Polyester Fabrics Treated with Visible-light Responsive Photocatalyst

  • Choi, Sei Young
    • Elastomers and Composites
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    • v.51 no.1
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    • pp.31-37
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    • 2016
  • In this study, we studied the photocatalytic functionality such as deodorant, antibacterial, antistatic of polyester fabrics treated with visible-light responsive photocatalyst. According to UV/visible spectrometry result, the UV-visible peak of visible-light responsive photocatalyst was found to be red shift at 420 nm sensitive in the visible light region. Also, the deodorizing and antimicrobial performance were shown to be retained more than 99% both before washing and even after 25 times washing. According to washing durability of polyester fabrics treated with visible-light responsive photocatalyst, the reduction effects for gas such as ammonia, trimethylamine, formaldehyde and toluene after 25 times washing appeared to be retained as much as before washing. At both before washing and after 25 times washing, antistatic property showed frictional voltage of approximately 250V.

Influence of Temperature and Benzotriazole on the Flow Electrification by aging Mineral, Vegetable Oil (열화된 광유와 식물성절연유에서 온도, 벤조트리아졸의 유동대전 영향)

  • Choi, Sun-Ho;Jeong, Jung-Il;Huh, Chang-Su
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.2
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    • pp.338-343
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    • 2011
  • In this paper, the FT-IR, conductivity and flow electrification phenomena of Vegetable oils were discussed. Vegetable oil has high flash point and eco-friendly properties compared to conventional mineral oil. Accelerated aging transformer oil samples produced in the oven at 140[$^{\circ}C$] for 500 hours, 1000 hours, 1500 hours, 2000 hours. Serial device to measure the flow electrification phenomena was designed and fabricated. Pico ammeter and the Labview data measurements were utilized. The effects of Temperature and antistatic agent on fluid flow electrification were investigated. Both Mineral and vegetable oil showed similar trends for temperature change. The polarity reversal occurred in mineral oil with antistatic agent above 10 ~ 30[ppm] and in vegetable oil with antistatic agent above 5[ppm].

The Composite of Antistatic and Hydrophobic Properties on PET with Washability (PET 직물에 대한 내구성 발수/제전)

  • Kim, Tae-Geun;Kim, Ju-An;Hong, Jin-Pyo;Yun, Seok-Han;Nam, Jeong-Yun;Lee, Hyeong-Dal;Kim, Yong-Tae
    • Proceedings of the Korean Society of Dyers and Finishers Conference
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    • 2008.10a
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    • pp.105-106
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    • 2008
  • The use of nanotechnology in the textile industry has increased rapidly due to its unique and valuable properties. In this study, we show that the composite of antistatic and hydrophobic properties on PET textile with washability.

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Preparation and Characterization of Polyamide/MEPDM Alloy to Improve a Low Temperature Impact Strength and Antistatic Property (저온 충격강도 및 대전방지성 향상을 위한 개질 EPDM을 함유한 polyamide alloy의 제조 및 물성)

  • Lee, Soo;Jin, Seok-Hwan
    • Journal of the Korean Applied Science and Technology
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    • v.28 no.3
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    • pp.299-305
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    • 2011
  • Alloys of nylon(PA6) and ethylene-propylene-diene polymer, modified with maleic anhydride(MEPDM) were prepared using a melt kneading process. This study focuses on the effects of the content of MEPDM in PA6 blend on the mechanical and thermal properties of such blends where MEPDM is the dispersed phase. Mechanical properties were examined by stress-strain measurements and impact strength test. Both impact strength of PA6/MEPDM at room temperature and at $-20^{\circ}C$ were improved up to 400-550% with the amounts of MEPDM. However, PA6/MEPDM containing 3-5 wt% of MEPDM showed the about $700kg_f/m^2$ of the maximum tensile strength but 8.5 % of the lowest elongation. For certain compositions of PA6 with rubbery MEPDM, the interesting reduction of elongation is caused by the reaction of the polyamide amine end groups with maleic anhydride portion in MEPDM, that provided a reinforcement in the PA6 matrix. In addition, the introduction of antistatic agent on the surface of alloys causes significant reduction of their surface electrostatic resistance.

An Antireflection and Antistatic Coatings for CRTs using PEDOT (PEDOT를 이용한 CRT용 반사방지 및 대전방지 코팅)

  • 김태영;김종은;이보현;서광석;김진열
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.15 no.1
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    • pp.61-66
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    • 2002
  • A method for designing antireflection (AR) and antistatic (AS) coating layer by the use of conducting polymer as an electrically conductive transparent layer is proposed. The conducting AR coating is composed of four-layer with alternating high and low refractive index layer: silicon dioxide (n=1.44) and titanium dioxide (n=2.02) prepared at low temperature by sol-gel method are used as the low and high refractive index layer, respectively. The poly(3,4-ethylenedioxythiophene) which has the surface resistivity of 10$^4$Ω/$\square$ is used as a conductive layer. Optical constant of each ARAS coating layers such as refractive index and optical thickness were measured by 7he spectroscopic ellipsometer and from the measured optical constants the spectral properties such as reflectance and transmittance were simulated in the risible region. The reflectance of ARAS films on glass substrate was below 1 %R and the transmittance was higher than 95 % in the visible wavelength (400-700 nm). The measured AR spectral properties was very similar to its simulated results.