• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.8 no.1
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• pp.27-31
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• 2002

In this study, the physical properties of starch adhesive by temperature in carrier and main part for the Stain-Hall method were analyzed. The temperatures of starch solutions in carrier part were inversely proportional to the viscosities. The viscosities of starch solutions were maintained similarly if 2nd temperatures were same independent on the those of the 1st temperatures in carrier part. the starch solutions showed similar viscosities in all range except the viscosity of the solutions in $30^{\circ}C\;and\;40^{\circ}C$. The viscosities of starch adhesives in main part were in proportion to those of starch solutions in carrier part. The viscosities of starch adhesives in main part were maintained similarly if 2nd temperatures in carrier part were same. The viscosities of starch adhesives in main part were low when the ultimate temperature of starch solutions in carrier part were high.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.40 no.4
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• pp.34-42
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• 2008

Generally, paper multilayering was performed before wet pressing process. However, sheets whose characteristics are different could be put together at the dry state by adhesives for the specialty paper products. In this paper, potential adhesives such as PVAc, oxidised starch, latex, and PVA were chosen and multilayering of several sheets was performed in laboratory scale. The effects of base paper properties and the composition of adhesives on the physical properties of multilayering paper were investigated. Physical properties such as bonding strength and stiffness were measured. For the practical reasons, mill trial was also executed. According to the result of laboratory tests and mill trial test, the physical properties of multilayered paper were greatly affected by the composition of adhesives and it was found that PVAc showed the best performance in all its aspects among four adhesives. Oxidised starch had an advantage of high stiffness and PVA gave high bonding strength to the multilayered paper. And it was also found that the properties of base paper showed the great influences not only on multilayering process, but also on the physical properties of the multilayered paper.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.48 no.1
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• pp.61-66
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• 2016

In order to improve the bonding efficiency of starch adhesives and water resistance of corrugated board, mixing ratio of additives dosage was changed and its effects were analyzed. When the additives dosage was increased, bonding strength, vertical compression strength, bursting strength and water resistance were increased, because of hydroxyl groups or acetyl groups in starch adhesives and cellulose fibers of corrugated board were cross-linked by additives. When 1.0% glyoxal dosage was added, flat crush strength and vertical compression strength were increased. With 1.5% glyoxal, bonding strength and bursting strength were increased. However, 2.0% glyoxal dosage was added, most of strength except bursting strength were decreased. Thus, when the appropriate amount of additives are added during corrugated board production process, increased bonding efficiency of starch adhesives and higher water resistance of corrugated board can be achieved.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 1999.04a
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• pp.27-27
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• 1999

• Journal of Conservation Science
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• v.35 no.1
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• pp.11-18
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• 2019

The adhesives joining Buddhist scripture scrolls from medieval Korea(Goryeo Dynasty, A.D. 918~1392) are different from wheat starch adhesive. The composition of the adhesive was analyzed using Attenuated Total Reflectance-Fourier Transform Infrared(ATR-FTIR) spectroscopy. In the adhesive used to join Buddhist scripture scrolls, peaks attributed to amide I and amide II of the protein and carbohydrate were detected in the ATR-FTIR spectra, and no carbonyl peak($1745cm^{-1}$) for oil was detected in the 2nd derivative ATR-FTIR spectra. The ATR-FTIR spectra almost coincided with those of defatted soybean powder adhesive. Hence, the adhesives joining Buddhist scripture scrolls were inferred to be soybean adhesive prepared from a defatted soybean cake.

• Journal of Conservation Science
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• v.12 no.1 s.15
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• pp.83-91
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• 2003

The paste used for conserving and mounting has much to do with the life of cultural properties of paintings. Previous studies on the pastes dealt with elimination of protein from wheat flour as protein has been known to do harm to paste and investigated the effects of starch and protein content on adhesive strength and conservativeness. We found that protein content inversely affected adhesive strength while adhesive strength and viscosity of paste were proportionally related to starch concentration of the paste. The adhesives with more protein showed less conservativeness. Types and number of microorganisms were found to increase as protein percentage increased. All these results points that the higher content of protein in adhesive formula support higher microbial growth with reduced adhesive strength, but higher flexibility. The optimized paste of conservation treatment was wheat starch paste with not only minimize viscosity but also maximized adhesive strength.

• Journal of Adhesion and Interface
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• v.21 no.4
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• pp.135-142
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• 2020

Recently, people's interest in eco-friendly plastics derived from nature to replace petroleum-based plastics is increasing due to environmental problems such as microplastics. In line with this trend, eco-friendly adhesives using natural materials and processes are also being developed in the adhesive field. Among them, maltose is a natural substance derived from starch and is the main component of starch syrup used as a food additive. Due to its lower molecular weight than starch, it is easily soluble in water, and above all, there is a possibility that it can be copolymerized with other monomers through solution polymerization. However, researches related to the application of maltose to adhesives are very rare. In this study, after modifying maltose using acrylic anhydride, the product was analyzed through FT-IR and H-NMR. And the modified maltose was copolymerized with two kinds of acrylic monomers. The synthesized adhesive was applied on the wood and the adhesive performance were investigated.

• 한국생물공학회:학술대회논문집
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• 2005.10a
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• pp.697-698
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• 2005

• 보존과학연구
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• s.29
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• pp.255-278
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• 2008

Considering the physical quality of the wall body in this study we tried to select a replenishing that is proper for filling the cracked part of the painting wall layer and apply the natural adhesives that have traditionally been used, investigating whether it is possible to substitute those for the chemical adhesive which is used at present time. The result of this study showed the red algae adhesive was, in a weathering environment, as safe as the synthetic resin originated from the polyvinyl acetate which is used generally on the present spot, and it was concluded that although the starch adhesive displayed its superiority in enhancing the strength of the earth mortar and its work disposition, it seemed proper for it to be used as a filling adhesive for the first or midterm layer because it showed a surface hardening phenomenon. And also the glue and fish glue were judged they were not qualified as a filling adhesive due to mold occurring in a environment of high moisture that is a biological problem, showing at same time a weak physical feature in a weathering environment. Therefore it would be possible to use the red algae adhesive or starch one substituting them for the original one sold on the present market, if among natural adhesives the weak points of the them were to be corrected.

• Elastomers and Composites
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• v.44 no.4
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• pp.429-435
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• 2009

The pressure sensitive adhesives (PSA) were synthesized by soap-free emulsion polymerization of acrylic monomers such as butyl acrylate, 2-ethyl hexyl acrylate, and acrylic acid in the presence of starch as a protective colloid and copolymer. The peel strength and holding power of PSA were increased with starch contents due to the enhancement of gel content, But the initial tackiness of PSA was decreased with starch contents. The contact angle analysis of PSA indicated that the wettability was increased with starch contents owing to the increase of polarity by hydroxy group in starch. In the pH measurement of emulsion with time for biodegradability, the starch in the PSA accelerated the lowering of pH due to the formation of organic acids followed by decomposition of starch.