• Title/Summary/Keyword: adhesive property

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Evaluation of Adhesion Property with Pot Life and Curing Humidity of GFRC and Epoxy Adhesive (유리섬유강화 복합재료와 에폭시 접착제의 가사시간과 경화습도에 따른 접착 강도 평가)

  • Yoo, Ji-Hoon;Shin, Pyeong-Su;Kim, Jong-Hyun;Lee, Sang-Il;Park, Joung-Man
    • Journal of Adhesion and Interface
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    • v.21 no.2
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    • pp.65-70
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    • 2020
  • Epoxy adhesive was mainly used to combine different composite materials. Epoxy adhesive was a typical thermosetting resin that can be bonded by changing from a linear structure to a three-dimensional network structure by curing reaction of epoxy and hardener. The curing conditions of epoxy adhesive were different with different types of hardener such as mixing ratio, curing time, and temperature. These curing conditions affected to the adhesive property of epoxy adhesive. In industry, it was difficult to proceed the applying epoxy adhesive and combining two parts immediately. The adhesive property decreased by humidity and pre-curing of epoxy adhesive in waiting time between two processes. In this paper, the glass fiber reinforced composite (GFRC) was combined with epoxy adhesive and adhesion property between epoxy adhesive and GFRCs was evaluated using single lap shear test. The different waiting times and humidity conditions were applied to epoxy adhesive in room temperature and adhesive property decreased as the waiting time increased. In small amount of humidity, the adhesive property increased because a small amount of moisture in the surroundings accelerated the curing reaction. In certain amount of humidity, however, the adhesion property decreased.

A Study of the appraisal for adhesive stability classified by tile bond agent on the dry wall surface (건식벽체에서 접착제 종류에 따른 타일부착 안전성 평가에 관한 연구)

  • Um Chan-Young;Sun Yoon-Suk;Kwon Shi-Won;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.05a
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    • pp.173-178
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    • 2005
  • The tile construction methods for existing have been used materials within limit which adhesion by wet method in masonry wall and concrete structure. These existing adhesive tech can caused many problems in construction of large and reform tile, after that it can be happened loose scale, peel off, falling off tile by heat and vibration or impact. In according to, this study is to test tile for bond stability, adhesive property by impact, vibration. low property by heat and then, we have the results as below; (1) The tile adhesive stability can be effected as adhesive area between bond agent and tile, adhesive area can more wide and press enough to ensure property. (2) Existing adhesive strength and standard relative tile construction is limited to adjust performance tile on the concrete and masonry wall. In summary, It is necessary to establish standard of performance and test method to ensure tile adhesive salability in dry wall.

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Review : The Advanced Inkjet Printing Technology - UV curable Jet Ink - (총설 : 최신 잉크제트 인쇄기술 - UV 경화형 제트잉크 -)

  • Jeong, Kyoung Mo;Won, Jong Myung;Lee, Yong Kyu;Koseki, Ken'ichi
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.46 no.2
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    • pp.46-56
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    • 2014
  • The aim of this reviews is to introduce the information concerning design of the UV-curable jet ink composition in order to provide a good adhesive property on non-porous surface. In order to clarify the viscosity dependence of flying speed for the UV curable jet ink, rheological analysis and observation of the flying state of the ink were carried out. The relationship between ink formulas and adhesive property on non-porous surface was investigated. It was examined the adhesive property of radical polymerization type UV curable jet ink included hydrogen abstraction type photo-initiator, it was expected that the strong adhesive strength can be obtained between the ink and non-porous surface in this study. UV curable jet ink with a slight amount of water was prepared. Optimum ratio of the cationic polymerization type UV curable jet ink shows an adequate adhesive strength towards two kinds of non-porous surface such as glass, poly(vinyl chloride) when tests were conducted on the ink jet-printing test machine.

Evaluation of Tailorability of Adhesive Fabrics for Men's Suit (신사복의 접착포에 대한 형태 안정성 평가)

  • Kim, Jung-Sook
    • Fashion & Textile Research Journal
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    • v.8 no.5
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    • pp.585-590
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    • 2006
  • In the variation of physical properties of adhesive fabrics, the objective of this study is to analyze fitness of fusible interlining to four sorts of fabrics for men's suit with various structural parameters. Four fusible interlinings are used for adhering to fabrics for men's suit. Mechanical properties of these 16 adhesive fabrics fused with these interlinings are measured by KES-FB system for analysing appearance and wearing properties of garments and for examining the fitness of fusible interlining to the fabrics for men's suit. The variation of bending property for adhesive fabrics are found to be higher in the order of interlining 1(Cotton30/Rayon70, plain), interlining 2(Polyester30/Rayon70, warp knit), interlining 4(Polyester, shingosen fabrics with drawing textured yarn) and interlining 3(Polyester, double dot coating interlining). The variation of adhesive effect shows the same results with bending property and shows negative relation with extensibility in weft direction per extensibility in warp direction(EM2/EM1). The variation of peel strength of adhesive fabrics, woolen fabrics in the case of face fabrics and interlining 3 in the case of interlining shows the largest value respectively.

Adhesion Properties on the Molecular Weight and Various Substrates of Multi-layered Structural Acrylic Adhesive (다층구조형 아크릴 점착제의 분자량 및 피착재 종류에 따른 접착특성)

  • Kim, Dong-Bok
    • Polymer(Korea)
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    • v.39 no.3
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    • pp.514-521
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    • 2015
  • In this study, we would like to describe peel strength and dynamic shear property on various substrates of multi-layered structural double-sided adhesive tape with or without adhesive (AD) prepared by UV curing for an automobile, construction, and display junction. According to adapt the adhesive, the peel and dynamic shear strength of adhesion tape prepared with acrylic foam or various plastic substrates increased with increasing molecular weight, however, decreased over 650000 molecular weight. The adhesion property shows high value at the thin AD layer with decreasing temperature. The interface property shows highest at MW 615000 (AD-4), and the interface junction below MW 615000 resulted to divide from acrylic foam and adhesive layer. From this study, the multi-layered structural double-sided adhesive tapes seem to be a useful for industrial area such as a low surface energy plastic material and curved substrate.

An Experimental Study on the Adhesion Property of Self Adhesive Rubberized Asphalt Waterproofing Sheet (자착식 고무화 아스팔트 방수시트의 접착특성에 관한 실험적 연구)

  • Jeoung Hyoun-Sang;Kang Hyo-Jin;Song Je-Young;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.05a
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    • pp.1-4
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    • 2005
  • This study is to examine adhesion the characteristics of self adhesive asphalt to minimize of the construction periods and the environmental problems through the performance estimation of materials to reduce waterproof problem and the long durability maintenance of building structures. This study tested the estimation items of self rubberized adhesive asphalt to examine the sheet discovered the most important problem in the construction site and the connection stability in the sheet joint. Besides, this study examined the material characteristics such as tension property, tear property, temperature dependence, heat resistance, adhesion stability and so on. Test results of the separative items satisfied in the reference figure of connection stability and adhesion stability which could confirm adhesion performances and other items also satisfied in the reference.

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Evaluation of Adhesion Property of Epoxy Adhesive with Different Surface Roughness of GFRC (유리섬유강화 복합재료의 표면거칠기에 따른 에폭시 접착제의 접착강도 평가)

  • Kim, Jong-Hyun;Shin, Pyeong-Su;Lee, Sang-Il;Park, Joung-Man
    • Journal of Adhesion and Interface
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    • v.21 no.1
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    • pp.27-33
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    • 2020
  • Adhesion property of epoxy adhesive was evaluated with different surface roughness of glass fiber reinforced composite (GFRC) and optimized condition of surface roughness was confirmed. Different sizes of alumina (Al2O3) particles were blasted to GFRC to control surface roughness of GFRC using sand blasting method. The surface roughness was measured and quantified via surface roughness tester. Contact angle was measured using four types of different solvents. Surface energies and work of adhesion between epoxy adhesive and GFRCs were calculated with different surface roughness of GFRC. Adhesion property between epoxy adhesive and GFRCs was evaluated using single lap shear test and adhesion property increased with surface roughness of GFRC. The fracture surface of GFRCs was observed to evaluate adhesion property. Finally, the optimized roughness condition of GFRCs was confirmed.

Recycling of Wastepaper(VI) -The Effect of Starch Adhesive on OCC Drainage Properties and the Application of Amylase- (고지재생연구(제6보) -골판지 고지의 탈수성에 미치는 전분의 영향과 아밀라아제의 적용-)

  • 서형일;류정용;신종호;송봉근;오세균
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.31 no.2
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    • pp.25-33
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    • 1999
  • A great difference in drainage time was observed from the recycled stocks between corrugated container board and its component papers, liner and medium paper. It could be assumed that the different drainage property should be caused from a starch adhesive present in the corrugated board. Thus, three types of starch such as dried Stein-Hall adhesive, cooked starch solution, and its dried film were added to linerboard stock in order to investigate the mechanism of drainage reduction. The water-swollen starch particles derived from Stein-Hall adhesive were drastically deteriorated the drainage time, even though the amount of starch is very small (2% or below). The drainage time of OCC was improved by 25% when amylase was used a new biological treatment. The results from the lab and mill test showed that the starch-degradable enzymatic treatment improves the drainage property as well as the reduction of calcium hardness.

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Adhesive Properties of Lactobacillus brevis FSB-1 In Vivo

  • Kim, Seong-Yeong;Shin, Kwang-Soon;Lee, Ho
    • Food Science of Animal Resources
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    • v.30 no.4
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    • pp.560-567
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    • 2010
  • This study was conducted to evaluate the in vivo gastrointestinal survival and adhesive properties of orally administered Lactobacillus brevis FSB-1. ELISA conducted using polyclonal antibodies specific for L. brevis FSB-1 was able to detect the organism in feces; therefore, we used ELISA to determine the concentration of lactic acid bacteria in feces collected from Wister rats that had been administered $10^{10}$ cells/rat/d orally for 20 d. The mean recovery of L. brevis FSB-1 was approximately $10^{7.22}$ cells/g of wet feces during the oral administration period, and $10^{7.50}$ and $10^{7.46}$ at 8 and 10 d after the end of oral administration, respectively. These results indicate that L. brevis FSB-1 was able to survive in the gastrointestinal tract of rats, and that it had a high adhesive property in rat colons.