• Proceedings of the Materials Research Society of Korea Conference
• /
• 2007.11a
• /
• pp.79.1-79.1
• /
• 2007

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2007.11a
• /
• pp.79.2-79.2
• /
• 2007

• Proceedings of the Materials Research Society of Korea Conference
• /
• 2007.11a
• /
• pp.80.1-80.1
• /
• 2007

• Proceedings of the Korean Fiber Society Conference
• /
• 2003.10b
• /
• pp.88-91
• /
• 2003

미생물의 침해로부터 인체와 섬유제품을 보호하기 위하여 사용되는 항균 가공제로는 아민 또는 제4급 암모늄계, biguanide계, 알코올계, 페놀계, 알데하이드계 등의 유기계, 금속 이온 무기계, 산화물 및 광 촉매계, 유기 무기계, 천연 화합물 등이 있다[1,2]. 이러한 항미생물 가공제는 우수한 살균력, 섬유제품의 고유한 성질을 변화시키지 않는 특성, 탁월한 세탁 내구성, 인체에 대한 무독성 등의 조건을 가져야 한다[2,3]. (중략)

• Proceedings of the Korean Society of Community Living Science Conference
• /
• 2004.05a
• /
• pp.177-177
• /
• 2004

섬유제품의 유해물질의 유해성에 관한 연구로서는 가공처리제의 공해실태, 시판되고 있는 천 및 의류제품의 formaldehyde 함량조사와 인체장해실태가 조사된 정도이며, 무기 화합물, 유기 화합물질의 발암성 주요인이 되는 다이옥신에 관한 유해성평가는 전무한 실정이다. 환경친화적인 활동이 활발한 유럽 각국에서는 섬유제품의 환경마크인 Eco-Label를 기준으로 하며, 미국과 일본에서는 발암성의 원인이 되며 내분비계 장애물질인 다이옥신에 관한 피복의 유해성 평가에 관한 연구가 활발하게 행해지고 있다. (중략)

• Proceedings of the Korea Contents Association Conference
• /
• 2003.05a
• /
• pp.298-302
• /
• 2003

Inorganic Crystal Structure Database, the essential information in the chemistry field for synthesis and property research of inorganic materials, has been constructed. The data source is obtained from the FIZ-Karlsruhe, about 65, 000 records of the coverage period is 1915 year to present. This paper describes the database schema and retrieval system of the Inorganic Crystal Structure Database designed for the speedy and efficient retrieval, especially developed into supporting numeric retrieval of the crystal structure cell parameter.

• Clean Technology
• /
• v.12 no.1
• /
• pp.37-44
• /
• 2006

The effectiveness of inorganic oxides (DT-30), anionic exchange resin (DT-60) and carbon absorbent (DT-80, DT-90) on the equilibrium and continuous separation characteristics and removal of cobalt, cesium and iodide ion in the waste water was investigated. As a result, DT-30, DT-80 or DT-90, and DT-60 showed excellent separation properties on the cesium, cobalt and iodide respectively. In the equilibrium experiment, the adsorption amount of cesium for DT-30 increased with temperature, but increasd largely with pH. In case of DT-80, adsorption of cobalt was depended on pH but was not influenced by temperature. In the continuous system by passing a heavy metal ion solution through the ion exchange tower, DT-30, DT-90 and DT-60 showed good separation characteristic for cesium, cobalt and iodide respectively. In this case, separation characterization of DT-30 on the cesium and of DT-60 on the iodide were better than that of DT-90 on the cobalt. From the experiment on the effect of impurities on the ion exchange characteristics, impurities such as surfactant and oil did not influence the efficiency of DT-90. In the mean while, ion separation capacity of DT-30 were decreased largely by impurities such as surfactant and oil. Also, surfactant had a strong influence on the effectiveness of DT-60. Accordingly, it turned out to be very important thing that impurities should be removed in the preprocessing stage.

• Nuclear Engineering and Technology
• /
• v.5 no.1
• /
• pp.44-54
• /
• 1973

In order to clarify an effective procedure of labelling organic chloro compounds by $^{38}$ Cl, phenyl chloro derivatives(7 kinds), chloro nitrobenzenes(6 kinds), chloro anisoles(2 kinds), chloro anilines(3 kinds), chloro toluenes(3 kinds), benzyl cholorides(4 kinds), and other comparing samples(3 kinds) were irradiated in the TRIGA Mark-II research reactor and the inorganic $^{38}$ Cl yields were compared with the irradiation times after extracting the inorganic portion with an aqueous solution of alkali. It was found that the relative change between the inorganic $^{38}$ Cl yield and the irradiadiation time depends a great deal on the state of the sample, and a solid sample gave a lower and steady inorganic yield. The inorganic $^{38}$ Cl yield was decreased in the order of phenyl chloro derivatives < chloro tol uene$^{38}$ Cl yield of homo functional compounds and the number of chlorine atoms on the benzene ring. Generally, poly chloro substituted derivatives could give a higher yield than those of less chloro substituted. The results were discussed and the feasibility of these results for labelling purpose was criticized.

• Journal of Adhesion and Interface
• /
• v.20 no.4
• /
• pp.146-154
• /
• 2019

In this study, alkoxysilane-functionalized amphiphilic polymer (AFAP), which have hydrophilic segment and hydrophobic segment functionalized by alkoxysilane group at the same backbone, was synthesized and used as a dispersant and control agent for reaction rate in the preparation of colloidally stable organic-inorganic (O-I) hybrid sols. After reaction with fluorosilane compounds, fluorinated O-I hybrid sols were prepared and coated onto glass substrate to form hydrophobic O-I hybrid coating films through low-temperature curing process. Surface hardness and hydrophobicity of cured coating films were varied with type of solvent and composition of AFAP and fluorinated alkoxysilane compounds. At appropriate solvent and composition of fluorinated alkoxysilane compounds, O-I hybrid coating film having high transparency and surface hardness could be prepared, which could be applicable to cover window of solar cell and displays.

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2005.11a
• /
• pp.338-340
• /
• 2005