• Journal of the Korean Ceramic Society
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• v.28 no.7
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• pp.509-516
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• 1991

The effect of various polymers on the freeze-thaw resistance of hardened cement mortar was investigated. For this study, styrene butadiene rubber (SBR), ethylene vinyl acetate (EVA), polyvinyl alcohol (PVA) were used to prepare cement mortar specimen, and then freeze-thaw experiment was carried out. By adding SBR adn EVA to the specimen, the freeze-thaw resistance of specimens was improved, but when PVA was added to the specimen, its freeze-thaw resistance was lowered. Particularly, the specimens which were added 5, 10% of SBR and 5% of EVA showed excellent freeze-thaw resistance in the salt environment.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2005.11a
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• pp.289-293
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• 2005

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.382-383
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• 2003

이동오염원에 의한 VOCs의 배출기여도를 산정 평가한 국내외의 자료에 따르면, 전체 VOCs 배출량 중 이동배출원에 의한 기여도는 미국이 26 ％, 유럽이 38 ％, 한국이 45 ％ 정도를 점할 정도로 비중이 큰 배출원으로서 주목을 받고 있다. 뿐만 아니라 배출성분 중에는 포름알데히드, 벤젠, 크실렌, 톨루엔, 1,3-butadiene 등과 같이 인체에 매우 유해한 성분이 상당수 포함되어 있기 때문에, 이들은 주관리 대상 배출원으로 간주되고 있다. (중략)

• Journal of the Korean Chemical Society
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• v.13 no.4
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• pp.333-339
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• 1969

Synthesis and chemical properties of 1,4-bisdiazo-2-butene have been studied. 1,4-Bisdiazo-2-butene which was very unstable produced in protic solvents 1,3-butadiene and one unidentified substance instead of ring compounds. The reaction in aprotic solvents remains for further investigations.

• Journal of Integrative Natural Science
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• v.3 no.4
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• pp.215-218
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• 2010

cis,cis-1,2,3,4-Tetraphenylbutadiene has been synthesized and its optical properties are investigated by using UV-Vis absorption and fluorescence spectroscopy. Thin films of tetraphenylbutadiene prepared from thin layer chromatography(TLC) displays strong luminescence and used for the detection of vapor of organic halide. Tetraphenylbutadiene shows dramatic quenching photoluminescence under exposure of chloroform vapor.

• Journal of Adhesion and Interface
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• v.5 no.2
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• pp.1-7
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• 2004

A novel carboxyl terminated butadiene-acrylonitrile (CTBN) modified, low temperature cure epoxy film adhesive was developed in this paper. It can be cured at as low as $75^{\circ}C$ for 4 hours with a pressure of 0.1MPa. After post cure at $120^{\circ}C$ for 2 hours, the bonding strengths of Phosphoric Acid Anodizing(PAA) surface treated aluminum adherend were similar to those of structural film adhesives curing at $120^{\circ}C$. It is suitable to bond both metal/composite laminate-to-laminate and laminate to honeycomb structure.

• Proceedings of the Korea Concrete Institute Conference
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• 1996.10a
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• pp.84-92
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• 1996

The flexural and compressive strengths of polymer-modified mortars containing FRP wastes were investigated. The specimens of polymer-modified mortars containing FRP mortat were perpared by using styrene-butadiene rubber(SBR) latex, ethylene-vinyl acetate(EVA) emulsion and polyacrylic ester(PAE) emulsion with various FRP-sand ratios(10, 20, 30, 40, 50wt%). The compressive and flexural strengths of polymer-mokified mortars containing FRP wastes were decreased with an increase of FRP-sand ratio. But the compressive and flexural strengths of PAE polymer-modified mortar were more improved than OPC, whereas those of SBR and EVA polymer-modified mortars containing FRP wastes were decreased than OPC.

• Elastomers and Composites
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• v.28 no.1
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• pp.13-21
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• 1993

Polyurethane resin was especially mixed with polybutadiene rubbers which had each other different molecular structures and functional groups. Liquid and cure properties were tested experimentally for mixtures. Viscosity of mixtures and drying time were influenced by solubility of thinner and reactivity of rubber. Adhesive strength represented maxium at rubber content $15{\times}22%$ (Wt. % ), and rapidly decreased over 25%. DBTDL(di-n-butyltindilaurate) showed the longest stroage stability.

• Journal of Integrative Natural Science
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• v.9 no.1
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• pp.62-66
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• 2016

To manipulate the mechanical properties of acrylonitrile butadiene rubber (NBR), addition of nano-sized silica on rubber was performed and nano-silica NBR composite (NSR) materials were fabricated by press molding. The effect of volume fraction of silica in the NSR on the spectroscopic and mechanical properties has been studied.

• Elastomers and Composites
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• v.6 no.2
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• pp.73-79
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• 1971

As a series of the studies of EPDM-Polymer blends, the experiments are concentrated to the investigation of the physical properties of the EPDM-SBR blends. The results are shown as follows: 1. Tensile strength decreased with increase in EPDM contents and the decreasing value was good results than NR blending. 2. It was found that the aging were much improved after blending and experiments data was good results than NR blending.