• Title/Summary/Keyword: environment-friendly adhesive

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Soybean-based Green Adhesive for Environment-friendly Furniture Material

  • Jeon, Ji-Soo;Lee, Jeong-Hun;Kim, Su-Min
    • Journal of the Korea Furniture Society
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    • v.22 no.3
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    • pp.174-182
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    • 2011
  • Over the last decade, Sick Building Syndrome has become a significant social issue in Korea and many methods have been considered to maintain comfortable indoor air quality. To reduce toxic substances emitted from wood composite products, the source control is an efficient method through the reduction of formaldehyde content by using natural material-based adhesives for composite wood products production. Among alternative materials, soybean protein is considered an appropriate natural material to replace formaldehyde-based resin and many efforts have been made to produce new products, such as soap, shampoo, ink, resin, adhesive and textile through changing the chemical or physical properties of soybean. To process soybeans into these useful products, the beans are dehulled and the oil is removed by crushing at very high pressure or by solvent extraction. For use soybean as an adhesive, it is processed at temperatures below $70^{\circ}C$ to preserve the alkaline solubility of the proteins. In addition, soybean-based adhesive is undergone treatment process to improve mechanical properties using urea, urease inhibitor N-(n-butyl) thiophosphoric triamide and sodium dodecyl sulfate. The modified soybean-based adhesive exhibited sufficient mechanical properties to use as an adhesive for composite wood products. This paper is a review article to discuss the possibilities of soybean-based adhesive for environment-friendly furniture materials.

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Development of Eco-friendly and Edible Adhesive Using Basil Seed Mucilage (바질 씨앗을 이용한 식용⋅친환경 접착제 개발)

  • Hyun Yun Lee;Hye Joo Lee;Seong Ho Ryu;Daniel Sim;Dae Seok Kim
    • Applied Chemistry for Engineering
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    • v.35 no.4
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    • pp.341-345
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    • 2024
  • Common adhesives contain harmful chemicals, posing risks to humans and the environment. Basil seeds, an underutilized resource, can offer a solution. We extracted mucilage from basil seeds and found that altering the basil seed mucilage (BSM) to water ratio allowed us to control the adhesive strength. As the concentration of BSM increased and the water evaporated, adhesive strength improved. BSM can serve as both an adhesive and pressure-sensitive adhesive. This research showcases BSM's impressive strength and stability, making it a promising eco-friendly industrial adhesive option from plant-based sources, revolutionizing the adhesive industry.

Environment-Friendly Bonding of Decorative Veneer by SIS-Based Hotmelt Pressure-Sensitive Adhesives (환경친화성 SIS계 핫멜트 점착제를 이용한 무늬목 접착)

  • Lim, Dong-Hyuk;Kim, Sumin;Park, Young-Jun;Kim, Hyun-Joong;Yang, Han-Seung
    • Journal of the Korean Wood Science and Technology
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    • v.34 no.3
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    • pp.22-29
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    • 2006
  • The overlaid panels are important materials in interior and construction with added surface layers (PVC films, decorative paper, decorative veneer). Generally, the adhesive for decorative veneer to wood-based panel is urea-formaldehyde (UF) adhesive which cause the emission of formaldehyde during not only the manufacturing process, but also service life. In this study, environment-friendly SIS-based hotmelt pressure-sensitive adhesive (PSA) was evaluated as a adhesive for bonding a decorative veneer. The various SIS-based hotmelt PSA was blended as a function of diblock content, softening point of tackifier, tackifier content, and applied to bonding the decorative veneer.

Properties of Water Resistant Plywood made with Modified Serum Protein Adhesive (혈장변성접착제를 사용한 내수합판의 특성)

  • Kang, Seog-Goo;Lee, Hwa-Hyoung
    • Journal of the Korean Wood Science and Technology
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    • v.39 no.1
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    • pp.21-27
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    • 2011
  • This study was carried out to examine properties of water resistant plywood by using serum protein adhesive which is natural, environment-friendly and human-friendly. For the preparation of the serum protein adhesive, pig blood from slaughterhouse was centrifuged and serum was separated from corpuscles and concentrated to 30% by dry weight basis. This concentrated serum protein was modified with PF resin (50% NVC) with the ratio of 9 : 2.5. Plywood made by this modified serum protein gave 1.21 N/$mm^2$ of dry bonding strength, 0.80 N/$mm^2$ of wet boil bonding strength, 0% of cyclic delamination test value, and 0.025 ppm of HCHO emission, which met the excellent super $E_0$ grade and water resistant plywood.

Properties of Black Charcoal Board Manufactured from Domestic Wood Waste by Using Serum Protein Adhesive (혈장접착제를 이용한 생활목질폐잔재로부터 제조된 흑탄 보드의 성질)

  • Seo, In-Su;Lee, Hwa-Hyoung
    • Korean Journal of Agricultural Science
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    • v.37 no.2
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    • pp.267-270
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    • 2010
  • This study was carried out to manufacture black charcoal board from domestic wood waste by using serum protein adhesive which is natural, environment-friendly and human-friendly. For the preparation of the serum protein adhesive, pig blood from slaughterhouse was centrifuged and serum was separated from corpuscles and concentrated to 30% by dry weight basis. The particle size of charcoal from domestic wood waste for this study was #6-60. Hot pressing schedule was $170^{\circ}C$ and 40kgf/$cm^2$ (1 min)-10kgf/$cm^2$ (2.5 min)-40kgf/$cm^2$ (5 min). The black charcoal board made by the addition of 13% serum protein adhesive on dry weight basis gave 41.76kgf/$cm^2$ of bending strength, 8.12kgf/$cm^2$ of internal bonding strength, and excellent gas adsorption and workability.

Preparation of Stick Type Solid Glue as Paper Adhesive Using Mixed Seaweed Extract

  • Oh, Seung-Jun;Han, Won-Sik;Wi, Koang-Chul
    • Journal of Conservation Science
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    • v.35 no.4
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    • pp.269-277
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    • 2019
  • Seaweed extracts, namely carrageenan obtained from Grateloupia elliptica and algin obtained from Laminaria, were employed as adhesive agents to synthesize solid adhesives for paper. Carrageenan from Grateloupia elliptica with the highest adhesive strength and lgin from Laminaria with the highest compressive strength was selected. The selected carrageenan and algin were mixed in a ratio of 7:3, and the mixture was employed as an adhesive agent. At a high temperature, sodium stearate(used as a solidifying material) oxidized the seaweed extracts. Consequently, carrageenan and algin were added to the final manufacturing process. The adhesive strength of the final synthesized solid adhesive is found to be 3.02 MPa and the compressive strength is found to be 30.5 N. Compared to the adhesive strength (2.95 MPa) and compressive strength (30.11 N) of commercial solid adhesives, the obtained results indicate superior adhesion characteristics. Furthermore, the proposed adhesive is environment-friendly because the presence of volatile organic compounds, formaldehyde, and heavy metals(such as chromium, lead, and cadmium) were not detected. Moreover, when used, the flatness of paper was twice that of commercial solid paper adhesives. Hence, the proposed adhesive can provide excellent adhesion, stability, and usability.

Environment-friendly Adhesives for Fancy Veneer Bonding of Engineered Flooring to Reduce Formaldehyde and TVOC Emissions

  • Kim, Sumin;Kim, Hyun-Joong;Xu, Guang Zhu;Eom, Young Geun
    • Journal of the Korean Wood Science and Technology
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    • v.35 no.5
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    • pp.58-66
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    • 2007
  • The objective of this research was to develop environment-friendly adhesives for face fancy veneer bonding of engineered flooring. Urea-formaldehyde (UF)-tannin and melamine-formaldehyde (MF)/PVAc hybrid resin were used to replace UF resin in the formaldehyde-based resin system in order to reduce formaldehyde and volatile organic compound (VOC) emissions from the adhesives used between plywoods and fancy veneers. Wattle tannin powder (5 wt%) was added to UF resin and PVAc (30 wt%) to MF resin. These adhesive systems showed better bonding than commercial UF resin with a similar level of wood penetration. The initial adhesion strength was sufficient to be maintained within the optimum initial tack range. The standard formaldehyde emission test (desiccator method) and VOC analyzer were used to determine the formaldehyde and VOC emissions from engineered flooring bonded with commercial UF resin, UF-tannin and MF/PVAc hybrid resin. By desiccator method, the formaldehyde emission level of UF resin showed the highest but was reduced by replacing with UF-tannin and MF/PVAc hybrid resin. MF/PVAc hybrid satisfied the $E_1$ grade (below $1.5mg/{\ell}$). VOC emission results by VOC analyzer were similar with the formaldehyde emission results. TVOC emission was in the following order: UF > UF-tannin > MF/PVAc hybrid resin.

Preparation and Their Properties of Hot-Melt Adhesive using Styrene Block Copolymer and Petroleum Resin (스타이렌 블록 공중합체(SBC)와 석유수지를 이용하여 제조한 핫멜트 접착제의 제조 및 특성)

  • Jeong, Booyoung;Cheon, Jungmi;Yoo, Chongsun;Chun, Jeahwan
    • Journal of Adhesion and Interface
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    • v.9 no.4
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    • pp.12-16
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    • 2008
  • Hot-melt adhesive was solid phase in room temperature as 100% solid contents. So it has advantage which attach to substrate with the low pressure heat, fast adhesion speed and environment friendly. In this study, We studied about the effect of a kind of SBS resin and petroleum resin as a tackifier resin and their ratio for hot-melt adhesive on properties. The styrene and $C_9$ resin contents in hot-melt adhesive was increased with increasing viscosity, tensile strength, peel strength and thermal resistance.

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Design and Properties of Laminating Waterborne PSA for Eco-friendly Flexible Food Packaging (식품연포장용 라미네이트 수성 감압점착제의 친환경적 적용에 대한 연구)

  • Lee, Jin-Kyoung;Shim, Myoung-Sik;Chin, In-Joo
    • Journal of Adhesion and Interface
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    • v.17 no.2
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    • pp.49-55
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    • 2016
  • In this study, we designed an environment friendly, water-based adhesive using the acrylic emulsion method as a replacement for solvent-based adhesives, which are most commonly used in layered laminates for flexible food packaging. We designed adhesives with different combinations of anionic, non-ionic, and phosphoric ester surfactants, and with different concentrations of chain transfer agent (CTA). We also examined the effect of the degree of cross-linking by synthesizing and comparing 8 test group adhesives with different types of functional monomers. Additionally, we synthesized 2 other test group pressure-sensitive adhesives (PSA) using styrene/alpha-methyl styrene/acrylic acid (SAA) semipolymer dispersing agents (with molecular weights of 13,000 g/mol and 8,600 g/mol, respectively) to replace the conventional surfactants. We evaluated whether the 10 test group pressure-sensitive adhesives met the basic physical property criteria required for flexible food packaging by carrying out a physical analysis of their glass transition temperature (Tg), particle size, adhesion, and molecular weight. In our test, 2 test group adhesives manufactured with the combination of anionic and non-ionic surfactants, CTA concentration of 0.2%, and functional monomers of hydroxyethyl acrylate (HEA) and glycidyl methacrylate (GMA) demonstrated molecular weight and flexibility suitable for flexible packaging, with low adhesiveness and small particle size.

Leather's Environment-friendly Adhesion Surface Treatment of shoe's material by Plasma (플라즈마를 이용한 신발소재의 환경 친화적인 접착 표면 처리(I))

  • Ha, Soon-Hee;Jang, U-Jin;Seul, Soo-Duk
    • Journal of Adhesion and Interface
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    • v.6 no.2
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    • pp.6-12
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    • 2005
  • The plasma generally, ionized gas state, is the 4th material state composed the universe. Generating the plasma artificially has been studied by spending energy and it has a lot of applications in human's life. There are several merits to modify the surface of polymer using plasma. Above all, plasma maintains the property of polymer because of it changes the property of surface only. Also, it doesn't use a organic solvent and it is the environment friendship because of there are no waste under processing. Furthemore, in case of high-pressure plasma, it is possible that automated-processing continuously. In this study, we tried the reforming of surface to rise the adhesive strength between the material of polymer, experimented the rising of adhesive strength through a experiment of peel strength by virtue of processing time and using gas, confirmed the change of polymer's surface through measuring the surface contact angle analyzer and scanning electron microscopy (SEM).

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