• Title/Summary/Keyword: low temperature adhesive

Search Result 132, Processing Time 0.035 seconds

A Research on Attachment Strength of Self-Adhesive Waterproofing Sheet in Low-Temperature Environment (저온환경에서 자착형 방수시트의 부착성능에 관한 연구)

  • An, Ki-Won;Park, Wan-Goo;Heo, Neung-Hoe;Kim, Yun-Ho;Park, Jin-Sang;Oh, Sang-keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2012.11a
    • /
    • pp.27-28
    • /
    • 2012
  • This study is to low-temperature in using self-adhesive waterproofing sheet. Using self-adhesive waterproofing sheet is very comfortable in a waterproofing construction site. However, when self-adhesive waterproofing sheet is constructed from a low-temperature environment, there has been a attachment strength shortage. Therefore, this study on the attachment strength of self-adhesive waterproofing sheet is to investigate the low-temperature in the environment.

  • PDF

A study on the characteristic of adhesion on the low temperature concrete of self adhesive waterproofing sheet using interface leakage test. (계면 누수를 통한 자착형 방수시트의 저온 부착 특성에 관한 연구)

  • Choi, Su-Young;Kim, Meong-Ji;Lee, Jung-Hoon;Choi, Sung-Min;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2014.05a
    • /
    • pp.234-235
    • /
    • 2014
  • Recently, waterproof construction used to self adhesive waterproofing sheet in the actual field in winter for reduce cost and term. However self adhesive waterproofing sheet's quality is declined in low temperature condition. So, this study was to confirm on the low temperature condition of concrete substrate effecting the adhesion of self adhesion waterproofing sheet using interface leakage test. As a result of this study, self adhesion waterproofing sheet must not be used at temperature below 5℃. Also, adhesion between waterproofing sheet and concrete is declined in low temperature.

  • PDF

Low Temperature Cure Film Adhesive

  • Liang, Bin;Zhao, Shenglong
    • Journal of Adhesion and Interface
    • /
    • v.5 no.2
    • /
    • pp.1-7
    • /
    • 2004
  • A novel carboxyl terminated butadiene-acrylonitrile (CTBN) modified, low temperature cure epoxy film adhesive was developed in this paper. It can be cured at as low as $75^{\circ}C$ for 4 hours with a pressure of 0.1MPa. After post cure at $120^{\circ}C$ for 2 hours, the bonding strengths of Phosphoric Acid Anodizing(PAA) surface treated aluminum adherend were similar to those of structural film adhesives curing at $120^{\circ}C$. It is suitable to bond both metal/composite laminate-to-laminate and laminate to honeycomb structure.

  • PDF

A Study on Adhesive Crosslinked in Low Temperature for High Temperature Aerospace Application (우주항공용 저온 경화 접착제의 고온 물성에 관한 연구)

  • Song, Jung Kun;Woo, Hyun Ryul;Lee, Geum Mi;Choi, Doo Hyun
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.22 no.2
    • /
    • pp.215-223
    • /
    • 2019
  • A high temperature adhesive development which is crosslinked in low temperature is necessary for aerospace application because of thermal expansion mismatches of various substrates. For this purpose, we have designed and fabricated several formulations with high temperature epoxy resins, crosslinkers and additives considering various working conditions and high service temperature. As a result, some formulations showed higher adhesive strengths than Hysol EA 9394/C2 which is widely used for aerospace applications. We also have studied and summarized the mechanical properties of the best development adhesive in both room and high temperatures.

Effect of the Si-adhesive layer defects on the temperature distribution of electrostatic chuck (Si-adhesive 층의 불량에 따른 정전척 온도분포)

  • Lee, Ki Seok
    • Journal of the Semiconductor & Display Technology
    • /
    • v.11 no.2
    • /
    • pp.71-74
    • /
    • 2012
  • Uniformity of the wafer temperature is one of the important factors in etching process. Plasma, chucking force, backside helium pressure and the surface temperature of ESC(electrostatic chuck) affect the wafer temperature. ESC consists of several layers of structure. Each layer has own thermal resistance and the Si-adhesive layer has highest thermal resistance among them. In this work, the temperature distribution of ESC was analyzed by 3-D FEM with various defects and the thickness deviation of the Si-adhesive layer. The result with Si-adhesive layer with the low center thickness deviation shows modified temperature distribution of ESC surface.

Functional Improvement of Poly(Vinyl Alcohol) Polarized Film by $O_2$ Low Temperature Plasma Treatment (산소 저온 플라즈마 처리에 의한 PVA 편광필름의 기능성 개선)

  • Park, Young-Mi;Hwang, Jong-Ho;Gu, Kang
    • Textile Coloration and Finishing
    • /
    • v.16 no.3
    • /
    • pp.14-21
    • /
    • 2004
  • In this research, we accomplished in order to improving color fastness of sublimation for Poly (vinyl alcohol) (PVA)-iodine polarized film. The poor iodine sublimation problem has greatly improved by $O_2$ low temperature plasma treatment. We obtained the followings: (1) plasma treatment has contributed in adhesive ability via peel strength, AFM image and roughness were investigated, But the improvement in adhesive strength was not linearly proportional to the treatment time. (2) $O_2$ plasma treated PVA-iodine polarized film was good enough as to maintain the transmittance and polarization even after iodine cone. of 0.05mol/L and dipping time of 50sec. (3) $O_2$ low temperature plasma treated PVA-iodine polarized film has obtain high durability because of good adhesive strength.

A Study on Thermal Simulation for Adhesive Curing of Cylindrical Cigarettes (원통형 궐련의 접착제 경화를 위한 열전달 시뮬레이션에 관한 연구)

  • Park, Yong-Woo;Moon, Seong-Min;Zhang, Qi;Lyu, Sung-Ki
    • Journal of the Korean Society of Manufacturing Process Engineers
    • /
    • v.20 no.11
    • /
    • pp.115-120
    • /
    • 2021
  • In this study, cigarettes, which are an essential element in the production of tobacco, are generally not cylindrical. The main materials used for cigarettes are generally hemp and pulp. For the production of cylindrical cigarettes, the cigarettes or cylinders are mounted via gluing. This adhesive is a vinyl acetate emulsion, a high-temperature melt adhesive, and is adhered in a cylindrical shape immediately after being linearly applied to the inner surface of the paper roll or a local part. These adhesives are greatly affected by the atmospheric temperature of the manufacturing space in summer and winter. In the summer, even if the adhesive is temporarily adhered, the coagulation time of the adhesive is long, and problems such as deterioration of the adhesive state occur. in the winter, there is a problem that the temperature of the manufacturing space is low and the adhesive force of the adhesive is poor, resulting in defective adhesive products. In order to solve these problems, another heat transfer device is utilized to cure the remaining adhesive to ensure higher adhesiveness.

Adhesive Strength Characteristics of the Curing Time and Test Temperature for Liquid Waterproofing Membrane in Concrete Bridge Deck (콘크리트 교면 도막 방수재의 양생기간 및 시험체 온도에 따른 접착 특성)

  • 조병영;박동협;신주재;김영근
    • Proceedings of the Korea Concrete Institute Conference
    • /
    • 2003.11a
    • /
    • pp.553-556
    • /
    • 2003
  • This study is analyzed about the factor of adhesive strength characteristics, curing time, asphalt application, test temperature which are liquid waterproofing membrane of rubber-asphalt and chloroprene-rubber type for concrete bridge deck. According to the results, curing time is shorter, adhesive strength is less in chloroprene-rubber type. And also chloroprene-rubber and rubber-asphalt type are showed high adhesive strength in low temperature.

  • PDF

Examination of Ingredients of High Temperature Heat Resistant Inorganic Fire-Resistant Adhesive Using XRD Analysis (XRD 분석을 이용한 고온가열 무기계 내화 접착제의 성분검토)

  • Cho, Hyeon-Seo;Ji, Woo-Ram;Shin, Ki-Don;Lee, Gun-Cheol
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2018.11a
    • /
    • pp.81-82
    • /
    • 2018
  • The structure of the RC structure is actively reinforcing the structure of the building which has suffered from aging, artificial and natural damage of the building. Among various reinforcement methods, epoxy adhesive is used to attach FRP in FRP reinforcement method which is reinforcing by attaching FRP to the structural part. At this time, the epoxy adhesive having a low critical temperature has a sudden adhesive failure upon exposure to heat, and thus, the development of an inorganic fireproof adhesive having a high critical temperature has progressed. Therefore, in this study, the compositional change of inorganic fire - resistant adhesive exposed to high temperature heat was analyzed by XRD.

  • PDF

Evaluation of Environmental Fatigue Strength in Adhesive Bonding of Different Materials (이종재료 접착제 접합부의 환경 피로강도 평가)

  • 임재규;이중삼;윤호철;유성철
    • Journal of Welding and Joining
    • /
    • v.20 no.5
    • /
    • pp.99-105
    • /
    • 2002
  • One of the important advantage of adhesive bonded joint can combine the different materials. The joint that bonded by structural adhesive bond must keep a large force and its strength is affected by some environmental factors such as temperature and submergence time in water. In order to advance the fatigue strength of adhesive bonded joint, mostly put a surface treatment on the surface. This study was researched the effect of air temperature, submergence time, submergence temperature and surface treatment on the fatigue strength. We found that submergence temperature has the most effect and low plasma treatment specimens have the most fatigue strength.