• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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• pp.234-235
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• 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.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2012년도 춘계학술대회 논문집
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• pp.1285-1286
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• 2012

• 설비공학논문집
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• 제17권2호
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• pp.183-190
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• 2005

In the process of ice-slurry making, ice adhesion on cooling wall or in narrow flow Path disturbs continuous ice formation. In this study, the effect on the ice adhesion to cooling surface by some freezing experiments was investigated, quantitatively. Three types of solutions were frozen in various coating vessels with stirring. In the experiment, the ice adhesion between cooling wall and Ice-slurry was evaluated by measuring stirring power. From the result, the stirring power of slurry mixture in PTFE-coating vessel was smaller than those in PE-coating, PFA-coating and bare SUS vessel. Especially, in EG H PG 1.S/ HD 1.5 mass$\%$ solution, the stirring power in the PE-coating vessel was smaller than that in the PFA-coating or SUS vessel.

• 접착 및 계면
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• 제24권3호
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• pp.86-94
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• 2023

OLED 소자를 용액공정으로 제작함에 있어 음극 전극의 용액공정화가 기술적인 난제이므로 별도의 기판에 음극 전극을 형성하고 PEI 층을 접합층으로 사용하여 이를 다른 기판의 소자와 물리적, 전기적으로 연결하는 연구를 진행하였다. PEI 용액의 농도, PEI 층의 두께 및 첨가제 혼합 등을 변수로 하였으며 접착력 측정기와 EOD 소자 제작을 통하여 특성을 확인한 결과는 다음과 같다. PEI 용액의 농도가 높을수록 접착강도가 증가하였으나 막 두께의 증가로 전류 밀도가 감소하였다. 0.1 wt% PEI 용액에 첨가제로서 조비톨과 PEG를 혼합한 결과 PEG를 0.5 wt%의 농도로 혼합한 조건에서 900 mA/cm² 의 최대 전류 밀도를 얻었으며 양호한 접착 상태와 소자의 점등도 확인되었다.

• Animal cells and systems
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• 제5권3호
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• pp.253-262
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• 2001

Ligand-receptor clustering event is the most important step in leukocyte adhesion and spreading on endothelial cells. Intercellular adhesion molecule-1 (ICAM-1) has been shown to enhance leukocyte adhesion, but the molecular event during the process of adhesion is unclear. To visualize the dynamics of ICAM-1 movement during adhesion, we have engineered stable Chinese hamster ovary cell lines expressing ICAM-1 fused to a green fluorescent protein (IC1_GFP/CHO) and examined them under the fluorescence microscopy. The transfection of IC1_GFP alone in these cells was sufficient to support the adhesion of K562 cells that express $\alpha$L$\beta$2 (LFA-1) integrin stimulated by CBR LFA-1/2 mAb. This phenomenon was mediated by ICAM-1-LFA-1 interactions, as an mAb that specifically inhibits ICAM-1-LFA-1 interaction (RRl/l) completely abolished the adhesion of LFA-1＊ cells to IC1_ GFP/CHO cells. We found that the characteristic of adhesion was followed almost immediately (~10 min) by the rapid accumulation of ICAM-1 on CHO cells at a tight interface between the two cells. Interestingly, ICI_GFP/CHO cells projected plasma membrane and encircled approximately half surface of LFA-1+ cells, as defined by confocal microscopy. This unusual phenomenon was also confirmed on HUVEC after adhesion of LFA-1＊ cells. Neither cytochalasin D nor 2,3-butanedione 2-monoxime an inhibitor of myosin light chain kinase blocked LFA-1-mediated ICAM-1 clustering, indicating that actin cytoskeleton and myosin-dependent contractility are not necessary for ICAM-1 clustering. Taken together, we suggest that leukocyte adhesion to endothelial cells induces specialized form of ICAM-1 clustering that is distinct from immunological synapse mediated by T cell interaction with antigen presenting cells.

• 한국표면공학회지
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• 제32권6호
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• pp.709-716
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• 1999

Ceramic is select for an alternative substrate material for high-speed circuits due to its low-thermal expansion. As, in this study, ceramic was prepared by ISG (interlayer sol-gel) process using metal salts and a metal alkoxide as the starting materials. Generally ceramic substrate is used electroless copper plating for the metallization. But it has been indicate weakely the adhesion strength between the substrate and copper layer. Therefore, this research, using the ISG process on the preparation of homogeneous and possible preparation at law temperature fabricated sol solution. Using of the dip coating method was coated for the purpose of giving the anchoring effect on the coating layer and enhancing the adhesion strength between the $Al_2$O$_3$ substrate and copper layer. This study examined primary the characteristic of the sol making condition and differential thermal analysis (DTA) X-ray diffraction (XRD) were mearsured to identify the crystal phase of heat treatment specimens. The morphology of the coated films were studied by scanning electron microscopy(SEM). As a resurt, XRD analysis was obtained patterns of $\alpha$-cordierite after heat-treatment about 2 hours at $1000^{\circ}C$. SEM analysis could have seen a large number of voids on coated film. The more contants of$ Al_2$$O_3$ Wt% was increased the more voids was advanced. Peel adhesion strength has a maximum in the contants of the TEOS:ANE of 1:0.7 mole%. In this case, adhesion strength has been measured 1150gf, peel adhesion strength were about 10 times more than uncoated of the ceramics film.

• 정보저장시스템학회논문집
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• 제5권2호
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• pp.82-88
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• 2009

Understanding the adhesion behavior and characteristics of toner film is required to achieve image and text printing with high quality resolution. Toner can be considered as a thin film coating on a media such as paper or polymer film. Quantitative measurement of adhesion characteristics of the thin film is important to assess the reliability of the system. In this work the main objective was to investigate the adhesion characteristic between the toner and the media by ramp loading scratch test method. The scratch test may be used to obtain quantitative information about the adhesion of the film to the substrate. In the scratch test a diamond tip was used to scratch the surface of the toner film under an increasing normal load until the toner detached or fractured. The critical load (LC) was obtained from the experimental results. Also, the relationship between the critical load and the adhesive strength of the interface between the substrate and the toner was obtained by measuring the normal and tangential forces during the scratch test. Finally, theoretical analysis of the toner scratch characteristics was performed based on Benjamin and Weaver theory, Plowing model, and Laugier model.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 추계학술대회 논문집
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• pp.531-532
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• 2006

• Elastomers and Composites
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• 제34권3호
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• pp.253-261
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• 1999

조성이 다른 접착제를 포함한 고무혼합물의 가교특성은 접착제 조성에서 탄닌이 많이 포함될수록 스코치 시간은 증가하였으며 경화속도는 다소 감소하는 것으로 보아 탄닌 분자의 크기와 형태 때문에 초기 가교반응을 지연시킴과 동시에 경화속도 역시 다소 지연됨을 알 수 있었다. 이들 고무혼합물의 인장물성 역시 탄닌이 많이 함유된 접착제를 고무에 혼합할수록 고무혼합물의 인장강도는 다소 감소하였다. 이는 탄닌이 많이 함유될수록 가교반응을 지연시켜 전체 고무혼합물의 가교도가 감소하기 때문일 것으로 사료되었다. 또한 접착제의 조성이 고무-섬유 접착에 미치는 영향을 보강코드로서 나일론 610 모노필라멘트를 사용하여 TCAT(Tire Cord Adhesion Test) 방법으로 조사하였다. 레소시놀-탄닌-포름알데히드-라텍스(RTFL) 접착제 조성에서 레소시놀 1 mole당 포름알데히드의 mole 비가 증가할수록 접착력은 증가하였고 대략 포름알데히드 5mole 이상에서 최적의 접착력을 나타냈다. 보강코드상의 접착제 수확량(DPU) 역시 최종 접착력에 영향을 미치지만, 나일론 610 모노필라멘트의 경우는 접착제 조성에 따른 DPU가 거의 일정하여 접착력의 차이는 접착제의 조성 중 탄닌의 거동 때문으로 해석될 수 있었다.

• 한국재료학회:학술대회논문집
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• 한국재료학회 1998년도 추계학술발표강연 및 논문개요집
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• pp.153-153
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• 1998