• Rubber Technology
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• v.2 no.1
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• pp.17-25
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• 2001

• Elastomers and Composites
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• v.9 no.1
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• pp.32-46
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• 1974

• Elastomers and Composites
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• v.6 no.1
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• pp.11-21
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• 1971

• Elastomers and Composites
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• v.6 no.2
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• pp.7-20
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• 1971

• The tire
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• s.44
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• pp.17-22
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• 1973

현금의 젊은 드라이버에게 "천연고무제의 적튜우브출현"등이라고 말하면 획기적인 튜우브의 신제품이라고 착각할런지도……그만큼 천연고무 튜우브의 좌는 쇠퇴해 버리고 말았다. 그것은 천연고무 보다도 튜우브용으로서는 휠씬 우수한 합성고무의 출현을 보았기 때문이다. 합성고무도 타이어용으로 사용되고 있는 그것과는 다르다. 바로 튜우브를 위해서만이 세상에 태어난 합성고무 인 "부칠고무"의 탄생이 그것이다. 부칠고무가 세계에서 처음으로 개발되어 생산된 것은 약 30년전 엣소의 전신인 스탄다아드사에 의해서이다. 그것이 일본에 들어온 것은 약 10년전 그러나 당시 자동차계는 보수적이어서 이 부칠고무에 의한 부칠 튜우브를 간단히는 받아들이지 않았다. 옛날의 천연튜우브가 적색이 었는데 반해서 부칠 튜우브는 타이어와 같은 흑색이였는데 큰 저항을 보였었다. 그러나 상품의 기본은 성능이다. 이 때문에 겨우 일본서 부칠 튜우브의 보급을 본 것은 5~6년전부터였었는가. 바야흐로 일본서도 이 고무의 국산화가 이룩되어 전튜우브의 95%강을 부칠로 점하기에까지 이르렀다. 그래서 금회는 부칠튜우브를 취급합과 동시 동고무의 앞날을 앳소화학의 연구실이 예측케 해보았다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.21 no.5
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• pp.148-155
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• 2017

In this study, by using the international standards ISO TS 16774, Part 2 Test method for chemical resistance as a quality control method of injection type repair material used for leakage crack of underground concrete structure, the performance requirement against of chemical environment of underground concrete structures for repair materials was tested. For this testing 3 types for each of the 2 classes of repair materials(synthetic rubber, cement), with a total of 9 types repair materials, were selected and examined. As a result, the test results showed that the smallest performance deterioration by the change in the mass was with the synthetic rubber(RG) type as opposed to the cement type system, showing that the synthetic rubber type had the strongest relative resistance to chemical exposure. Furthermore, it is necessary to investigate the material with high resistance to chemical substances and to examine the material which can increase resistance to sodium hydroxide and sodium chloride in cement system. These results can be used as a basic index for the selection of repair materials with the strongest resistance to chemical environment found in concrete structures. In addition, it is expected that the test results derived in this study can be used as reference data that can be reflected in the quality improvement of the maintenance material to be developed later.

• Polymer Science and Technology
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• v.8 no.6
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• pp.748-753
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• 1997

• Journal of the Korea institute for structural maintenance and inspection
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• v.24 no.5
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• pp.61-68
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• 2020

In this study, the international standard ISO TS 16774 Part 3 Test Method for Water (wash out) Resistance and KS F 4935 ｢Sealant Injection type for water leakage maintenance of adhesive flexible rubber asphalt series｣, which are standardized as a quality control method of injection type repair materials used for water leakage cracks in underground concrete structures, are currently used in Korea. As a result, considering the performance criteria of "mass change rate -0.1%" stipulated in KS F 4935, the remaining 13 types repair materials, excluding RG-2 of synthetic rubber and UG-1 of urethane, need to be reviewed for stabilization of the loss resistance due to the flow of ground water. The results of this study are determined to be available as a basic indicator for the selection of repair materials used for cracks in concrete structures. In addition, it is expected that the results of this study can be utilized as reference data that can be reflected in the improvement of the quality of repair materials that will be researched and developed later.

• Elastomers and Composites
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• v.45 no.3
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• pp.156-164
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• 2010

Thermoplastic elastomers (TPEs) exhibit both elastomeric behaviors at used temperature range and melt processibility. Polyamide based thermoplastic elastomers (TPAEs) are segmented block copolymers with hard blocks consisting of polyamide segments, while the soft blocks usually consist of flexible segments having a low glass transition temperature. The TPAE is one of the engineering TPEs possessing high thermal stability, excellent mechanical performances, chemical resistance and excellent processibility. And they showed wide range of physical and functional properties depending upon the structure of each segment and their relative contents and the hybridization with various inorganic particles. In this review, synthesis, properties, and possible applications of TPAEs are summarized.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 1998.11a
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• pp.83-88
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• 1998

방향족 화합물은 합성수지, 합성고무, 합성섬유 등의 석유화학제품의 원료와 2성분 또는 3성분 이상을 혼합한 도료공업에서 광범위하게 사용되고 있다. 그러나 이들 물질들은 공정상의 제조, 저장, 처리과정에서 고온, 고압의 조건에서 많이 노출되어 있을 뿐 아니라 취급과 사용 중에 부주의로 인한 폭발과 화재사고가 증가하고 있다. 그러므로 사고예방을 위해서는 취급하는 물질의 기본적인 위험 특성을 정확하게 파악하여 예방대책을 강구하여야 하므로, 인화성 액체의 경우에는 위험성의 지표인 인화점(Flash point)을 반드시 파악하여야 한다. (중략)