• Title/Summary/Keyword: Traditional adhesive

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The Effect of the Additives on the Properties of Pasting (첨가제가 배접용 풀의 특성에 미치는 영향: 콩, 석회, 황랍, 백반 첨가제를 중심으로)

  • Baek, Young-Mee;Cho, Kyoung-Sil;Lee, Young-Hee
    • Journal of Conservation Science
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    • v.27 no.3
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    • pp.261-268
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    • 2011
  • Traditional paste materials and additives for investigation were selected through careful literature survey. We used the immersed glutinous rice flour, soybean as a traditional paste materials and a yellow wax, alum, and lime as additives. The effect of additives on viscosity, pH, adhesive strength, flexibility, antibacterial activities, mildew resistance, and conservation properties were examined. It was found that there was a relationship between the properties(viscosity, pH, and adhesive strength) and the characteristics of additives. Alum increased flexibilty but decreased viscosity, adhesive strength, and pH. Yellow wax deceased flexibilty, viscosity, adhesive strength, and pH. Lime increased flexibilty, viscosity, adhesive strength, and pH. The conservation properties increased by adding all additive. The present work was therefore carried out with the objective of offering the base datum for keeping traditional papers and textiles using traditional paste.

Development and application of the modified roller bandage (새로운 유형의 롤러붕대의 개발 및 적용)

  • Yoon, Byoung Gil;Park, Jung Hee
    • The Korean Journal of Emergency Medical Services
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    • v.25 no.1
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    • pp.49-56
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    • 2021
  • Purpose: This experimental study aimed to solve the problem of discomfort and stably fix the bandage. A new self-adhesive bandage was manufactured to reduce the inconveniences associated with the plaster bandage. We compared the associated stability between the plaster bandage and the new self-adhesive bandage. Methods: The traditional elastic bandage (traditional EB; i.e., plaster bandage) and modified elastic bandage (modified EB; i.e., new self-adhesive bandage) were applied to 30 people each. We measured the time of preparation and attachment for traditional TB and attachment for modified TB. A 4kg cattle bell was fixed to each bandage to compare their respective stability levels. Results: The speed for the traditional EB was 28.93(±9.28)sec (mean 25.56s) and 6.13(±1.81)sec for the modified EB (mean 5.95sec). The stability values were 1.49(±.77)min for the traditional EB (mean 1.31min) and 26.22(±9.04)min for modified EB (mean 1.31min). The differences in speed and stability were statistically significant. Conclusion: Compared to the traditional EB, applying the modified EB could solve the attachment inconvenience and provide stable maintenance.

A Study on the Manufacture and Physical Properties of Liquid Adhesive for Wood Preservation - Focusing on the Synthesis of Gelatin and Carrageenan - (목재 보존용 액상 접착제의 제조 및 물성 연구 - 젤라틴과 카라기난 합성 중심으로 -)

  • Oh, Seung Jun;Han, Won Sik;Wi, Koang Chul
    • Journal of Conservation Science
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    • v.37 no.6
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    • pp.801-806
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    • 2021
  • In order to improve the usability of glue, a traditional adhesive material, and the gelation process of seaweed extract carrageenan, a liquid adhesive for wood preservation was prepared by mixing the two materials. The prepared wood adhesive was mixed with a 15 wt% aqueous solution of glue, λ-carrageenan, an antibacterial agent, an antifoaming agent, and the maximum adhesive strength of 1.80 Mpa was confirmed. As a result of comparison, the adhesive strength was superior to that of 5 different types of traditional natural adhesive ingredients (aqueous solution) and 1 type of polyvinyl acetate-based adhesive.

Study of Characteristics for Red Adhesive in Traditional Gold Thread (전통 편금사에 사용된 붉은 접착제 특성 연구)

  • Kim, Ji Eun;Yu, Ji A;Han, Ye Bin;Chung, Yong Jae
    • Journal of Conservation Science
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    • v.32 no.1
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    • pp.43-49
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    • 2016
  • Gold threads mean thread made by metal, it is composed various material to gold leaf, adhesive and media. The making technique and using materials of Gold threads are different from region, it can be used to distinguish country of origin. So this study finds characteristics and making techniques for flat gold threads of relics. Standard samples are made of animal glue, lacquer, red lacquer and etc. This materials are based on the scientific investigation of cultural gold threads properties. Then traditional techniques were estimated by comparison and analysis of actual cultural properties and standard samples. As a result of investigating cultural properties, it is similar to the standard sample which are mixed with red soil additives. After analysis of SEM-EDS, it is detected to Al, Si, Fe. So it is to the conclusion that traditional gold thread is made of adhesive mixed with red soil to improve gold color better. And this ways are similar with china that uses animal glue and red soil to adhesive and different from japan that uses lacquer to adhesive. Through this study, it will be used to data and reference for reappearance and making techniques of traditional gold threads.

Antimicrobial Effect of Medical Adhesive Composed of Aldehyded Dextran and ${\varepsilon}$-Poly(L-Lysine)

  • Lee, Jeong-Hyun;Kim, Hye-Lee;Lee, Mi-Hee;Taguchi, Hideaki;Hyon, Suong-Hyu;Park, Jong-Chul
    • Journal of Microbiology and Biotechnology
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    • v.21 no.11
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    • pp.1199-1202
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    • 2011
  • Infection of surgical wounds is a severe problem. Conventional tissue reattachment methods have limits of incomplete sealing and high susceptibility to infection. Medical adhesives have several advantages over traditional tissue reattachment techniques, but still have drawbacks, such as the probability of infection, low adhesive strength, and high cytotoxicity. Recently, a new medical adhesive (new-adhesive) with high adhesive strength and low cytotoxicity, composed of aldehyded dextran and ${\varepsilon}$-poly(L-lysine), was developed. The antimicrobial activity of the new-adhesive was assayed using agar media and porcine skin. In the agar diffusion method, inoculated microorganisms that contacted the new-adhesive were inactivated, but this was not dependent on the amount of new-adhesive. Similar to the agar media results, the topical antimicrobial effect of new-adhesive was confirmed using a porcine skin antimicrobial assay, and the effect was not due to physical blocking based on comparison with the group whose wounds were wrapped.

Modern State of Models for Fundamental Adhesion - A Review Extended Abstract

  • Possart, Wulff
    • Journal of Adhesion and Interface
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    • v.3 no.1
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    • pp.43-51
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    • 2002
  • Advanced adhesive technologies and demanding applications of adhesive joints can no longer be developed successfully by the traditional "trial and error" approach. Appropriate technical solutions require reference to a reliable basis of well-established scientific knowledge about the elementary mechanisms of adhesion (i.e. the 'fundamental adhesion') as they are responsible for the capability of the compound w transmit mechanical force between the adhesive and the substrate surface (i.e. the 'practical adhesion'). Adhesion mechanisms also influence the formation of polymer structure in the adhesive and the resulting macromolecular dynamics in the interphase that is formed in the adhesive near to the substrate. These manifold molecular factors rule the macroscopic behaviour of an adhesive bond line in terms of mechanical and other physical properties as well as in terms of durability. This paper reviews the level of refinement that understanding of fundamental adhesion has achieved up to now.

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Adhesive Properties of Emulsion PSA Polymerized Using Tween Series Nonionic Surfactants (Tween계 비이온 계면활성제를 이용하여 중합한 에멀션점착제의 접착물성)

  • Lim, Tae Kyun;Lee, Myung Cheon
    • Korean Chemical Engineering Research
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    • v.52 no.3
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    • pp.289-293
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    • 2014
  • In making emulsion type pressure sensitive adhesive (PSA), environmentally friendly Tween series nonionic surfactants were used to find out the possibility of substituting the traditional nonyl-phenyl nonionic surfactant (NP-40) by comparing their adhesive properties. Results exhibited that the PSA used Tween series nonionic surfactants showed much better adhesive properties in peel strength and holding power than that used NP-40.

A Literature Review on the Adhesive Herbal Treatment on Sprain (염좌의 첩부치료에 대한 문헌 고찰)

  • Yang, Gi-Young;Lee, Eun-Kyung;Choi, Eun-Hee;Jeon, Ju-Hyun;Lee, Byung-Ryul;Kim, Young-Il
    • Journal of Acupuncture Research
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    • v.26 no.1
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    • pp.23-28
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    • 2009
  • Objectives & Methods : The main point of this literatual study was to develop an external treatment on sprain using adhesive herbal pack. Results & Conclusions : The herbs which was used in adhesive treatment matched the same function with oral herb medicine such as, promoting blood flow to remove blood stasis, relieving rheumatic conditions, and removing obstruction in meridians and collaterals. Based on these function it was reviewed that adhesive herbal pack directly effected the sprain region from herbs by using alcohol, water to produce the pack. But even though it is known that the method of adhesive herbal treatment changes, most treatment still uses the traditional method. So researching on adhesive herbal treatment is required in the future.

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Adhesive Properties of Emulsion PSA for Various Nonionic Sorbitan Surfactants (솔비탄계 비이온계면활성제 종류에 따른 에멀션점착제의 점착물성)

  • Lim, Tae Kyun;Lee, Myung Cheon
    • Journal of Adhesion and Interface
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    • v.13 no.4
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    • pp.182-187
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    • 2012
  • In making emulsion-type pressure sensitive adhesive (PSA), environmentally friendly sorbitan nonionic surfactants having various chemical structures were prepared and used to find out the possibility of substituting the traditional nonyl-phenyl nonionic surfactant (NPE40) by comparing their adhesive properties. Results exhibited that the PSA used NSR10-series and Tween 60 showed better adhesive properties in initial ball tack, peel strength and holding power than those of NPE40. The reason for this is their particular chemical structure and the proper ratio of hydrophobic groups to the ethylene oxide groups.

Research on Flame Retardant Formaldehyde-Free Plywood Glued by Aqueous Polymer Isocyanate Adhesive

  • WEN, Ming-Yu;ZHU, Jia-Zhi;ZHU, Meng;SUN, Yao-Xing;PARK, Hee-Jun;SHI, Junyou
    • Journal of the Korean Wood Science and Technology
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    • v.48 no.5
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    • pp.755-764
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    • 2020
  • Due to pronounced mechanical performance and being environmental friendly, aqueous polymer isocyanate adhesive (API) has been widely applied in the production of formaldehyde-free wood products. In this study, flame retardant formaldehyde-free plywood was prepared by incorporation of flame retardants into the API adhesive. Partially phosphorylated poly (vinyl alcohol) (PPVA) which was prepared by reacting poly (vinyl alcohol) with phosphoric acid was used to replace PVA in API formula. In addition, Mg-Al layered double hydroxides (LDH) was chosen as additive flame retardant, replacing traditional filler CaCO3 in API adhesive formula. And then, the flame retardant API adhesive with main agent (PPVA replacing PVA70wt.%, SBR emulsion 30wt.%), curing agent 10wt.% (accounts for of the main agent), and 20wt.% LDHs (accounts of the main agent) was used to prepare flame retardant plywood. The effect of application of PPVA and Mg-Al LDH on bonding strength of plywood was investigated. The flammability characteristics of the plywood were determined by cone calorimeter test (CCT). The results revealed that compared with the plywood prepared with API adhesive, the use of PPVA and LDH enhanced the flame retardancy of plywood without negatively affecting bonding strength. The CCT tests indicated that the heat release and smoke production flame retardant API plywood were lower than those of the ordinary API glued plywood. Promising developments for flame retardant API adhesive were expected in future applications of flame retardant formaldehyde-free plywood.