• 제목/요약/키워드: Silane coupling

검색결과 243건 처리시간 0.019초

실란 커플링제를 이용한 실리카/고무 복합재료의 기계적 계면 물성의 향상 (Improvement of Mechanical Interfacial Properties of Silica/Rubber Composites by Silane Coupling Agent Treatment)

  • Park, Soo-Jin;Cho, Ki-Sook;Lee, Jae-Rock
    • 한국복합재료학회:학술대회논문집
    • /
    • 한국복합재료학회 2001년도 추계학술발표대회 논문집
    • /
    • pp.121-124
    • /
    • 2001
  • Surface-modified silica holds considerable promise in the development of advanced materials for good mechanical properties and stability. In this work, the surface and mechanical interfacial properties of silicas treated with silane coupling agents, such as Y-methacryloxy propyl trimethoxy silane (MPS). Y-glycidoxy propyl trimethoxy silane (GPS), and Y-mercapto propyl trimethoxy silane (MCPS), are investigated. The effect of silane surface treatments of silica on the surface properties and surface energetics are studied in terms of surface functional values and contact angle measurements. And their mechanical interfacial properties of the silica/rubber composites are studied by the composite tearing energy ($G_{IIIC}$). As a result. the mechanical interfacial properties are improved in the case of silane-treated composites compared with untreated one. It reveals that the functional groups on silica surface by silane surface treatments play an important role in improving the degree of adhesion at interfaces in a silica-filled rubber system.

  • PDF

Silane Coupling제를 이용한 면직물의 황토염색 (Loess Dyeing on Cotton Fabrics using Silane Coupling Agent)

  • 김성우;남성우;김인회
    • 한국염색가공학회지
    • /
    • 제13권5호
    • /
    • pp.48-48
    • /
    • 2001
  • The effects of silane coupling agent on the performance properties of cotton fabrics treated with loess and its washing durability were investigated. Mean average diameter of loess was 17.88㎛ and main components were SiO₂, Al₂O₃ and Fe₂O₃. By using the cationic agent, the dyeability of cotton fabrics was improved. The washing durability, antibacterial property and deodorization rate were improved and very good emissivities of far infra-red rays were obtained by using the silane coupling agent. And also the mechanical properties of cotton fabrics, such as primary hand values, were improved.

Silane Coupling제를 이용한 면직물의 황토염색 (Loess Dyeing on Cotton Fabrics using Silane Coupling Agent)

  • 김성우;남성우;김인회
    • 한국염색가공학회지
    • /
    • 제13권5호
    • /
    • pp.336-345
    • /
    • 2001
  • The effects of silane coupling agent on the performance properties of cotton fabrics treated with loess and its washing durability were investigated. Mean average diameter of loess was $17.88\mu{m}$ and main components were $SiO_2,\;Al_2O_3\;and\;Fe_2O_3$. By using the cationic agent, the dyeability of cotton fabrics was improved. The washing durability, antibacterial property and deodorization rate were improved and very good emissivities of far infra-red rays were obtained by using the silane coupling agent. And also the mechanical properties of cotton fabrics, such as primary hand values, were improved.

  • PDF

Dynamic Mechanical and Morphological Properties of Natural Rubber Vulcanizates Containing Fillers

  • Lee, Hae Gil;Park, Chan Young
    • Elastomers and Composites
    • /
    • 제51권3호
    • /
    • pp.218-225
    • /
    • 2016
  • In order to examine correlation between silane coupling agent and activator which affects the physical properties of silica filled natural rubber compound, such as heat buildup, rebound property, dynamic mechanical and morphological properties were measured. With incorporation of silane coupling agent, $tan{\delta}$ at $0^{\circ}C$ was increased and at $60^{\circ}C$ was decreased, which resulted in improving of wet grip and rolling resistance. When silane coupling agent which is corresponding to 8~10% of silica was used, most favorable heat build up and $tan{\delta}$ was obtained. And also when activator was used, dispersibility of silica was improved as a result of reduction of reaggregation of silica.

기능성 실란 커플링제가 에폭시계 콘크리트 주차장 바닥용 마감재의 물리적 성능에 미치는 영향 (Effect on the Physical Performance of Functionalized Silane Coupling Agent on Epoxy-Based Concrete Surface Finishing Material for Parking Floor)

  • 채우병;성동연;서상교
    • 한국건축시공학회:학술대회논문집
    • /
    • 한국건축시공학회 2012년도 춘계 학술논문 발표대회
    • /
    • pp.279-282
    • /
    • 2012
  • This study attempted to the effect on the physical performance of silane coupling agent on solventless epoxy-based concrete surface finishing material for parking floor. Tests were carried out in accordance with KS F 4041 and KS F 4937. The results of compressive strength, flexural compressive are 95.6N/㎟, 25.4N/㎟ and after wheel moving load testing, average abrasive depth is 0.96mm, these results satisfied the quality standard of KS F 4041, KS F 4937. As conclusion, this study confirmed that the silane coupling agent greatly effected on the physical performance of solventless epoxy resin.

  • PDF

Effect of Amino Silane Coupling Agent on the AC Electrical Breakdown Phenomena of Epoxy/Layered Silicate Nanocomposite in Needle-plate Electrodes

  • Park, Jae-Jun
    • Transactions on Electrical and Electronic Materials
    • /
    • 제13권3호
    • /
    • pp.149-152
    • /
    • 2012
  • The effects of amino silane coupling agent on the AC electrical treeing and breakdown behaviors in an epoxy/layered silicate (1 wt%) were examined in needle-plate electrode geometry. A layered silicate was exfoliated in an epoxy base resin by using our AC electric field apparatus. To measure the tree initiation and propagation and the breakdown rate, an alternating current (AC) of 10 kV (60 Hz) was applied to the specimen in needle-plate electrode arrangement with a $30^{\circ}C$ insulating oil bath. In the epoxy/amino silane system, the tree initiation time was 11.5 times higher and the breakdown time was 17.9 times higher than those of the neat epoxy resin. The tree initiation time in the epoxy/layered silicate (1 wt%) system with the amino silane was 2.0 times higher, and the breakdown time was 1.5 times higher than those of the epoxy/layered silicate (1 wt%) system.

Chlorosulfonated Polyethylene의 저온가황반응(低溫加黃反應) (Low Temperature Vulcanization of Chlorosulfonated Polyethylene)

  • 박근식;박성하;최세영
    • Elastomers and Composites
    • /
    • 제27권4호
    • /
    • pp.255-261
    • /
    • 1992
  • Chlorosulfonated polyethylene(CSM) was moisture-cure after treating them with silane coupling agents such as ${\gamma}-mercapto$ propyl trimethoxy silane, ${\gamma}-glycidoxy$ propyl triethoxy silane and methyl triethoxy silane, 3-(trimethoxy silyl) propyl methacrylate and 3-thiocyanopropyl triethoxy silane. The cure reaction is composed two steps. The first is the reaction between chlorosulfonyl groups of CSM and silane coupling agents. The second is the formation of cross-links which are siloxane linkage. The linkage is formed by the condensation of silanol groups which are produced by the hydrolysis of alkoxysilyl groups. CSM was mixed with MPS etc., and dilaurate dilaurate as catalyst on two open mill and the compounds were lured in hot water at $70^{\circ}C$ Physical properties of moisture-cured CSM was measured. CSM was effectively moisture-cured and r-mercapto propyl trimethoxy silane and r-glycidoxy propyl trimethoxy silane were capable of the vulcanizing agents.

  • PDF

실리카로 보강된 천연고무 가황물의 가교 밀도 변화에 가황촉진제 함량이 미치는 영향 (Influence of Cure Accelerator Content on Change of Crosslink Density by Thermal Aging in Natural Rubber Vulcanizates Filled with Silica)

  • 최성신;나창운
    • 접착 및 계면
    • /
    • 제3권2호
    • /
    • pp.30-39
    • /
    • 2002
  • 실리카로 보강된 천연고무 가황물에서 가황촉진제의 양이 열노화에 의한 가교밀도의 변화에 미치는 영향에 대해 연구하였다. 또한 실란커플링제의 영향도 조사하였다. 가황촉진제로는 N-tert-butyl-2-benzothiazole sulfenamide(TBBS)를 실란 커플링제로는 bis-(3-(triethoxysilyl)-propyl)-tetrasulfide(TESPT)를 사용하였다. 가황물을 열노화 시키면 가교밀도는 증가하였고 노화 온도가 높을수록 그 변화 정도는 컸다. 실란 커플링제가 포함되지 않은 가황물의 가교밀도 변화가 실란 커플링제를 포함한 것에 비해 더 크게 나타났다. 실란 커플링제가 포함되지 않은 가황물의 경우에는 가교밀도의 변화에 대한 활성화 에너지가 가황촉진제의 함량이 증가할수록 순차적으로 낮아지는 경향을 보였다.

  • PDF