• 제목/요약/키워드: Rubber Materials

검색결과 1,020건 처리시간 0.03초

수용성 고무 아스팔트계 도막방수재의 실외 적용을 위한 기본 물성 연구 (A Study on the Basic Physical Properties of Water-Soluble Rubber Asphalt-based Coating Waterproofing for Exterior Application)

  • 강효진;윤성환;오상근
    • 한국건설순환자원학회논문집
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    • 제8권4호
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    • pp.553-561
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    • 2020
  • 국내 건축 구조물 방수재료 중 하나인 수용성 고무 아스팔트계 도막 방수재는 주로 실내(화장실, 주방, 배란다 등)에 많이 사용되고 있다. 일반적으로 아스팔트계열의 재료는 검은색의 기본 채도를 벗어나지 못하여 노출용보다는 비노출용으로 많이 쓰이고 있으며, 수용성 고무 아스팔트계 도막방수재의 경우는 기본적으로 낮은 물성 때문에 실내로 한정하여 적용하고 있다. 이에 인장 및 신장성 향상을 위하여 실란커플링제와 무기필러, 프로세서 오일 넣어 물성을 향상시켰고, 이에 따라 실외 도막방 수재 품질기준과의 기초 물성을 분석하였다. 그 결과 노출용 품질기준과 비교한 수용성 고무 아스팔트 도막방수재는 시험 평가가 진행된 전 항목에서 실리콘 고무계의 기본 물성 품질기준을 상회하는 결과가 나타났으나, 우레탄 고무계 1류의 인장강도 및 인열강도 클로로프렌 고무계 인열강도 품질기준 대비 성능이 약 34.2%에서 약 40.8% 정도 부족한 것으로 나타났다.

투명전도막 및 고분자 재료의 표면처리 (Surface Treatment of Transparent Conductive films and Polymer Materials)

  • 이봉주;이현규;정수복;이경섭;김형곤;정환기
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 춘계학술대회 논문집 센서 박막재료
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    • pp.15-17
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    • 2001
  • A new possibility of our atmospheric cold plasma torch has been examined on the surface treatment of an air-exposed vulcanized rubber compound. The plasma treatment effect was evaluated by the bondability with another rubber compound using a polyurethane adhesive.

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Rubber-Filled 샌드위치 복합재료의 충격 특성 연구 (A Study on Impact Performance of Rubber-Filled Sandwich Composite)

  • 황호;조치룡;김동욱
    • 한국복합재료학회:학술대회논문집
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    • 한국복합재료학회 2004년도 추계학술발표대회 논문집
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    • pp.65-68
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    • 2004
  • A new multifunctional sandwich composite was investigated in this paper. The honeycomb core of this composite was filled with viscoelastic material in order to obtain an improved impact performance. The fillings in the honeycomb cells was hoped to provide the act of energy dissipation in this combined material system. Low-velocity drop-weight test was set up to the specimens with various stacked carbon/epoxy laminate facesheets, $[0/90]_{4s},\;[0/45/-45/90]_{2s}$. Load and energy history were checked and compared for the both groups of specimens, with and without rubber fillings. Further, the damaged faces were inspected visually by ultrasonic C-scan.

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PC/ASA blends having enhanced interfacial and mechanical properties

  • Kang, M.S.;Kim, C.K.;Lee, J.W.
    • Korea-Australia Rheology Journal
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    • 제18권1호
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    • pp.1-8
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    • 2006
  • Blend of bisphenol-A polycarbonate (PC) and (acrylonitrile-styrene-acrylic rubber) terpolymer (ASA) having excellent balance in the interfacial properties and mechanical strength was developed for the automobile applications. Since interfacial adhesion between PC and styrne-acrylonitrile copolymer (SAN) matrix of ASA is not strong enough, two different types of compatibilizers, i.e, diblock copolymer composed of tetramethyl polycarbonate (TMPC) and SAN (TMPC-b-SAN) and poly(methyl methacrylate) (PMMA) were examined to improve interfacial adhesion between PC and SAN. TMPC-b-SAN was more effective than PMMA in increasing interfacial adhesion between PC and SAN matrix of ASA (or weld-line strength of PC/ASA blend). When blend composition was fixed, PC/ASA blends exhibited similar mechanical properties except impact strength and weld-line strength. Impact strength of PCI ASA blend at low temperature was influenced by rubber particle size and its morphology. PC/ASA blends containing commercially available PMMA as compatibilizer also exhibited excellent balance in mechanical properties and interfacial adhesion.

샤피충격시험기를 이용한 고무보강 폴리머재료의 파괴인자 결정에 관한연구 (A study on the Determination of Fractuye Parameters for Rubber Toughened Polymeric Materials Using Instrumented Charpy Impact Test)

  • 최영식;박명균;박세만
    • 대한기계학회:학술대회논문집
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    • 대한기계학회 2001년도 춘계학술대회논문집A
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    • pp.389-394
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    • 2001
  • The notched Charpy and Izod impact tests arc the most prevalent techniques used to characterize the effects of high impulse loads on ploymeric materials. An analysis method for rubber toughened PVC is suggested to evaluate critical strain energy release rates(Gc) from the Charpy impact energy measurements. An Instrumented Charpy impact tester was used to extract ancillary information concerning fracture properties in addition to total fracture properties and maximum critical loads. The stress intensity factor Kd was computed for varying amounts of rubber contents from the obtained maximum critical loads and also toughening effects were investigated as well.

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친환경 자원재활용 재료와 폐자원을 이용한 고점착 자착식 방수시트재의 재료적 특성에 관한 실험적 연구 (Research on Materials Characteristics of high adhesive Self Adhesion Waterproofing Material using by the Eco-friendly Resource Recycling and Resource Waste)

  • 허능회;최은규;김수연;김진성;이종용;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2012년도 춘계 학술논문 발표대회
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    • pp.291-293
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    • 2012
  • Recently, environmental pollution and global warming and greenhouse gases are increasing, because Efforts to improve are continued throughout the world. As part of the resource recycling industry has become an important research area. In the field of waterproofing industry, focus on the resource recycling is growing, due to serious resource depletion and sharp price. Therefore, in this research on the resource recycling such as reclaimed rubber and rubber waste is enable and these eco-friendly materials are applied high adhesive flexible non-exposed type self adhesion compound waterproofing material was measured eco-friendly performance and field application was evaluated.

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자착식 부틸고무시트에 다발형 유리섬유직포를 적층한 비노출방수공법에 관한 연구 (An Study on the Non-Exposure Waterproofing Method Laminated Twist Glass Fiber Mesh on Self Adhesion Butyl Rubber Sheet)

  • 방명진;박진상;강효진;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2007년도 춘계학술논문 발표대회
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    • pp.133-136
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    • 2007
  • It has been applied the self adhesion waterproofing sheet which is developed from exist asphalt waterproofing sheet by heat and torch in domestic construction field. However, the problem of waterproofing have constantly happened due to air pocket condition and defect of joint part in waterproofing construction. Therefore, in this study, we would like to analyze the field application as testing in side of materials and construction method of self adhesion butyl rubber sheet and study of the materials performance.

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코로나 대전을 통한 옥외용 고분자 절연재료의 자외선 열화특성 연구 (Study on UV degradation in Polymeric Insulating Materials for Use in Outdoor Insulators by Corona-Charging)

  • 연복희;안종식;이상용;허창수
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2001년도 춘계학술대회 논문집 유기절연재료 전자세라믹 방전플라즈마 연구회
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    • pp.106-109
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    • 2001
  • In this paper, we have investigated the degradation of shed materials of outdoor insulators by UV-radiation by using corona-charging and XPS analysis. The accumulated charges on polymeric surface having intrinsic hydrophobic property have a negative impact on retaining its hydrophobicity. Therefore, shorter decay times of surface charges are preferred. The surface voltage decay on UV-treated silicone rubber and EPDM show a different decay trend with UV treated time. From the XPS analysis, the oxidized groups of silica-like structure in silicone rubber increase with UV treatment time. For EPDM, the oxidized carbon groups of C=O, O=C-O increase as elapse of UV radiation time. These oxidized surface for each material have different electrostatic characteristics, so deposited charges may be expected to have different impacts on their surface hydrophobicity. The degradation mechanism based on our results is discussed.

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Cone-Calorimeter와 연기밀도챔버를 이용한 고무발포단열재의 연기밀도 비교 (Smoke Density Comparison of Rubber Foam Insulator by the test between Cone-Calorimeter and Smoke Density-Chamber)

  • 조희기;이덕희;이철규;이동우
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 추계학술대회 논문집
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    • pp.941-946
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    • 2005
  • Kinds of Sound & Thermal Insulator are being used for materials of railroad vehicles as a barrier of beat and noise. Glass Wool, PE foam, PP foam are such kinds of materials. In case of fire, it shows various combustion properties. In this study, we compared the Smoke Density of the Rubber Foam Insulator by test between Cone-Calorimeter and Smoke Density-Chamber. The results showed that the Rubber Foam Insulator had an important role in the insulator thickness and the test method, We forecast the smoke density by test between Cone-Calorimeter and Smoke Density-Chamber.

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