• 제목/요약/키워드: Adhesive glue

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THE EXPERIMENTAL STUDY FOR INFLUENCE OF FIBRIN GLUE DURING HEALING PHASE AFTER MAKING ARTIFICIAL BONE DEFECT (백서 두개골 결손부의 골재생에 fibrin glue가 미치는 영향에 관한 실험적 연구)

  • Rim, Jae-Suk;Jang, Hyon-Seok;Eune, Jung-Ju;Lee, Eui-Seok;Park, Eun-Yong;Suh, Je-Duck
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.27 no.5
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    • pp.431-437
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    • 2005
  • Fibrin glue is composed of fibrinogen and thrombin and used in various regions for multiple use. Basic principle is that thrombin converts fibrinogen to fibrin in the presence of $Ca^{2+}$. The structure of fibrin is loose at the beginning, but after about 5 minutes a tight structure is formed under the influence of factor VIII which changes fibrin monomer into fibrin polymer. Fibrin glue is used for tissue adhesive, suture, local hemostasis, wound healing, closure of subdural space. Fibrin adhesive has been used in oral and maxillofacial surgery for hemostasis after tooth extraction in patients with coagulation disorders, skin graft fixation, reattachment of periodontal flaps, in combination with autogenous bone chips to fill the bony cavities following cyst removal, and for securing the hydroxyapatite granules for maxillary alveolar ridge augmentation. This study was designed for researching influence of fibrin glue during healing phase after making artificial bone defect.

Surgical Treatment of Spontaneous Pneumothorax by Thoracoscopic Wedge Resection with Fibrin Glue (비디오흉강경을 이용한 자연기흉의 치료시 국소적 Fibrin Glue 도포)

  • 신화균
    • Journal of Chest Surgery
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    • v.33 no.10
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    • pp.812-816
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    • 2000
  • Background ; To evaluate the efficacy of Fibrin glue to decrease recurrence in video-assisted thoracoscopic surgery(VATS) for a treatment of spontaneous penumothorax. Material and Method : All medical records of 17 patients who underwent a thoracoscopic wedge resections of bullae with stapling device with Fibrin glue in our institute between May 1998 and December 1999 were reviewed. variables analyzed include affected sites primary indication of VATS. duration from admission to discharge duration of postoperative stay duration of chest tube drainage recurrence and complication. There were 16 men and 1 woman. Result : There was no evidence of hemodynamic instability or arterial blood gas abnormalities encountered during the procedure. Mean age at the time of the VATS was 26.9 years (range 15 to 61 years) The mean duration from admission to discharge was 7.8 days and mean postoperative stay was 5.1days mean chest tube indwelling period was 4..0 days. There was no recurrence of pneumothorx. Conclusion : Thoracoscopic wedge resections with introduction of fibrin glue are safe and effective and requires only a short hospital stay. We believe that this thoracoscopic technique will further simplify the surgical treatment of pneumothorax.

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Effect of Transplantation of Ecklonia stolonifera Okamura with Adhesive Glue (순간접착제를 이용한 곰피 (Ecklonia stolonifera Okamura)의 이식효과)

  • Choi Chang Geun;KiM Hyung Geun;Son Chul Hyun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.35 no.6
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    • pp.608-613
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    • 2002
  • Experimental transplantation of Eklonia stoionifera to natural rock was carried out using adhesive Blue. A plant was attached to an architecture tile ($10\times$10 cm) with the glue, and then the tile was attached to natural rock with underwater glue. Within one month, the tile were fixed to natural rock with an attachment rate of $75\%$, and 5. stoionifera grew up with an insertion rate of $66.7\%$ on the tile. After two months, number of E. stolonifera on the tile decreased. However, the attached plants were regenerated by new stolons, maintaining good growing condition. After seven months,5. stoloaifera increased 6 to 71 individuals. These results indicate that regeneration of plants was mainly affected by the recruitment of stolen around the plant.

A Strategy for the Simulation of Adhesive Layers

  • Ochsner, A.;Mishuris, G.;Gracio, J.
    • Journal of Adhesion and Interface
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    • v.6 no.1
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    • pp.1-6
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    • 2005
  • The high accurate simulation of very thin glue layers based on the finite element method is still connected to many problems which result from the necessity to construct a complicated mesh of essentially different sizes of elements. This can lead to a loss of accuracy, unstable calculations and even loss of convergence. However, the implementation of special transmission elements along the glue ling and special edge-elements in the near-edge region would lead to a dramatic decrease of number of finite elements in the mesh and thus, prevent unsatisfactory phenomena in numerical analysis and extensive computation time. The theoretical basis for such special elements is the knowledge about appropriate transmission conditions and the edge effects near the free boundary of the adhesive layer. Therefore, recently proposed so-called non-classical transmission conditions and the behavior near the free edge are investigated in the context of the single-lap tensile-shear test of adhesive technology.

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Study on Properties of Natural Adhesives with Lacquer for Ceramic Conservation (옻을 활용한 토기 복원용 천연 접착재료의 특성 연구)

  • Jeong, Se Ri;Kim, Eun Kyung;Yu, Jae Eun
    • Journal of Adhesion and Interface
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    • v.12 no.4
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    • pp.111-116
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    • 2011
  • The characteristics of natural resin, sap of the lacquer tree were examined as an adhesive for the ceramic conservation since it has such outstanding properties like corrosion resistance against acid and alkali, heat-resistance, waterproof, antiseptic and protection against insects. In order to utilize raw lacquer as an adhesive not under the hardening conditions of lacquer like high humidity (RH 75 to 85%) and high temperature (120 to $170^{\circ}C$), but under normal condition, isinglass and animal glue were added to raw lacquer at certain ratio. In addition, the viscosity and the drying time were measured and their possibilities of application were also investigated through measurement of tensile and adhesive strength. As a result of experiment, it was possible to dry at room temperature and RH $50{\pm}5%$ to mix with raw lacquer and glue, and the drying time of sample with animal glue was faster than that of isinglass. Furthermore, the adhesion of sample with glue was increased more than raw lacquer. It seems to be possible to use the environmental friendly traditional adhesive for the ceramic conservation and restoration, if there are studies or examinations of safety of applications on objects and weathering resistance.

Study on the Physical Properties and Characteristics of Adhesives for Woodcraft (목공예용 천연 및 합성 접착제의 특성 연구)

  • Kim, Seong Eun;Lee, Jin Kyung;Lee, Chae Hoon;Chung, Yong Jae
    • Journal of Conservation Science
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    • v.35 no.6
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    • pp.681-688
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    • 2019
  • In this study, the characteristics of natural and synthetic adhesives used in woodcraft were evaluated. The pattern of deterioration of wood and adhesives according to changes in temperature and humidity were compared. For materials, one type of anlmal glue, three kinds of polyvinyl acetate adhesives, one type of epoxy adhesive and one type of zelkova wood were selected. Characteristics of physical and chemical characteristics, weather resistance and drying speed assessment were carried out. The adhesion characteristic evaluation showed that the adhesion strength of anlmal glue and one type of polyvinyl acetate adhesive were 6.54 N/㎟ and 7.01 N/㎟, pH meter of anlmal glue and polyvinyl acetate adhesives was pH 7.03 and pH 3.32-3.59 which were range of available as an adhesive. According to the test results of weather resistance, epoxy adhesives had the highest decreasing value in adhesion strength after deterioration. In the reversible test of the adhesive, it was found to be highly reversible in NaOH, a soluble solvent excluding epoxy, but attention is required when using the wood since it may show discoloration during processing.

A Study on the Application of Filler to the Bark of Wooden Sculpture (목제 조각품의 수피부에 대한 충전제 적용 연구)

  • Kim, Young Mok;Kwon, Hee Hong;Kim, Soo Chul
    • Journal of Conservation Science
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    • v.37 no.2
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    • pp.135-143
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    • 2021
  • Conservation treatment that involved filling the lifting parts of wooden cultural heritage is carried out by obtaining wood or wood powder of the same species and mixing it with synthetic resin or natural glue to charge the blank area. Various concentrations and mixing ratios of adhesives and additives are used, depending on the type and condition of the target. Accordingly, in this study, we determined the conditions of the filler suitable for conservation treatment of wooden sculptures with lifted or separated bark in the National Museum of Modern and Contemporary Art. The optimal filler conditions for each adhesive were selected based on drying speed, shrinkage and expansion rates, and physical deformation degree. Then, to verify their actual applicability, these fillers were applied to wood and exposed to high-humidity environment and their cross-sections were observed. The fillers showed stable application in the following order: animal glue, PVAc adhesive, acrylic adhesive. In conclusion, a 1:2 mixture of animal glue and wood powder is a suitable filler for conservation treatment of wooden sculpture with lifted bark. The results of this study suggest appropriate ways to stabilize the bark that was lifted or separated from a wooden sculpture, thus enabling the future conservation treatment of the artworks under similar conditions.

Influence of Animal Glues Application for Painting Restoration on Paper Characteristics (회화 복원용 교의 적용이 종이 특성에 미치는 영향)

  • Park, Mi Seon;Kim, Hyoung-Jin
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.47 no.4
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    • pp.127-135
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    • 2015
  • Artists have been used animal glues for a long time as binding and sizing materials of paintings in many countries including Korea. Since animal glues as a binding material lose their own adhesive strength by aging, pigment particles or pigment layers are easily detached from painting surface. Restaurators prefer to use animal glues for consolidation of pigment particles or pigment layers because artists use animal glues as a binder for their painting works. It is widely known that animal glues have different characteristics such as viscosity, stability on water etc. But there are still a few requirements to consider their stabilities for the restoration of paintings. Therefore, this study was aimed to evaluate of stability and efficiency of animal glue applications. The efficiency of animal glue application was decreased with increasing the concentration of animal glue solution. This result means the simple tendency, but does not representative data for other animal glues made from same raw materials. In most cases, the surface and mechanical characteristics of animal glues are dependent on some factors, like viscosity and concentration of animal glue solution.

Constituent Analysis of Organic Solvents in Adhesives Sold on Domestic Market (국내시판 본드에 함유된 유기용매의 성분분석)

  • Kim, Dai-Byung;Lee, Jong-Kwon;Jung, Kyong-Ja;Yoon, Yeo-Pyo;Kim, Myung-Soo
    • Toxicological Research
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    • v.14 no.3
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    • pp.329-332
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    • 1998
  • Ingredients and concentrations of organic solvents in 7 kinds of adhesive sold on the domestic market were qualitatively and quantitatively analysed. Vapor concentrations were also analysed to estimate inhalation concentratins when adhesives were abused to get high. Acetone, methyl ethyl ketone, methyl cyclopenatane, cyclohexane and toluene were identified to be used in domstic adhesives as solvents. When organic solvents of adhesives were vaporized in the vial at the room temprature for 30 mins, concentrations of organic solvents in air were in the range of 5,000~140,000ppm. Among these solvents, toluene, known to have strong hallucination effect, showed 5,000~35,000 ppm. The putative concentration of toluene in case of glue sniffing was estimated to be about 5,000ppm in consideration of glue sniffing circumstances. Toluene was found in all adhesives in this study, even adhesives which toluene was not described in label.

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Analysis of animal glue by pyrolysis/GC/MS (열분해/GC/MS에 의한 아교의 분석)

  • Park, Jongseo
    • Analytical Science and Technology
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    • v.28 no.3
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    • pp.221-227
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    • 2015
  • Animal glue is a traditional material that was used widely as an adhesive in cultural artifacts, such as Buddhist paintings, dancheong (traditional multicolored paintwork on wooden buildings), mother-of-pearl inlay, and so on. Spectroscopic methods, such as infrared spectroscopy, have been used for the analysis of animal glue. However, such methods do not yield sufficient information about the constituents of the glue. Because pyrolysis/GC/MS analysis is able to estimate the components of a material through the examination of its pyrolyzed products, it is useful for the analysis of polymeric material. In this study, pyrolysis/GC/MS analysis was used to determine the chemical composition of animal glue. The appropriate conditions for analyzing animal glue were established by examining pyrolysis temperature, quantity of the sample, and the repeatability of the method. Some products of pyrolysis were identified. We also analyzed commercial gelatin and animal glue using the established method and found almost no differences in chromatograms among the samples. The results will be used as supporting data to confirm the use of animal glue in cultural artifacts and to replace traditional animal glue by commercial gelatin.