• Fibers and Polymers
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• 제2권1호
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• pp.152-156
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• 2001

Three different silicone polymer systems, such as aminofunctional, epoxyfunctional, and hydrophilic epoxyfunctional silicone polymers, were applied onto plasma pretreated wool fabric to improve the dimensional properties. The results showed that the plasma pretreatment modified the cuticle surface of the wool fiber and increased the reactivity of wool fabric toward silicone polymers. Felting shrinkage of plasma and silicone treated wool fabric was decreased with different level depending on the applied polymer system. Fabric tear strength and hand were adversely affected by plasma treatment, but these properties were favorably restored on polymer application. Therefore, it has been concluded that the combination of plasma and silicone treatments can achieve the improved dimensional stability, and better performance properties of wool fabric. The surface smoothness appearances of treated fabrics were measured using a new evaluation system, which showed good correspondence with the results of KES-FB4 surface tester.

• 공업화학
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• 제7권4호
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• pp.633-638
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• 1996

내한, 내열성이 우수한 실리콘 고분자를 합성하기 위하여 페닐기를 도입한 1,1-diphenyl-1-methyl-7-hydroxydodecamethylheptasiloxysilane을 합성하고 이의 물성을 연구하였다. $100{\sim}800^{\circ}C$의 범위에서 TGA 분석을 시행한 결과 일반 polydimethylsiloxane에 비해 열적성질이 우수하였으며, $-50{\sim}-10^{\circ}C$ 범위에서 내한성을 측정한 결과 유동성을 유지하였다. 또한 실리콘 고무에 합성한 실리콘 고분자를 첨가한 결과 기계적 성질이 향상되었다.

• 대한가정학회지
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• 제19권2호
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• pp.213-221
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• 1981

This theiss deals with the effects of addition of silicone oil to the polymerization and oxidation of frying oil in the practical deep fat frying process. The measurement of frying oil stability was carried out under various silicone oil content and compared with controlled frying process. In controlled frying process A.V., C.O.V., TBA, and contents of petroleumether insoluble fatty acids were increased as time was increased. It means thermal oxidized polymerization and hydrolysis of frying oil was occurred. When silicone oil was added to frying oil, it's thermal stability was better than that of the controlled oil and the degree of thermal stability was changed according to the contents of silicone oil. We obtained the highest degree of thermal stability when silicone oil was added 1ppm.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 1999년도 춘계학술대회 논문집
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• pp.540-543
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• 1999

In order to determine what indluences the interfacial breakdown in EPDM/XLPE laminates. We studied the interfacial breakdown phenomena at several interfacial conditions. Breakdown strength in laminates pasted with silicone oil was higher than that with silicone grease. As a function of heat treatment time in a vacuum, interfacial breakdown strength increased much in XLPE/EPDM laminates pasted with silicone grease but increased a little in that with silcone oil. FT-IR spectrum of silicone oil was similar to that is silicone grease. FT-lR spectrum of silicone oil was not changed by the heat treatment in a vacuum, but in silicone grease another peak appeared.

• 한국전기전자재료학회논문지
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• 제12권1호
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• pp.1-10
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• 1999

In this paper, we have investigated the effects of the environmental factors on Low Molecular Weight (LMW) silicone fluid contents existing in high temperature vulcanized (HTV) silicone rubber sample, using dipping method and contact angle, current measurement. Artificial treatments such as immersion in water, elevated temperature, UV irradiation and dry band arcing under salt-fog condition are selected as the environmental factors. This results will be helpful to investigate the degradation with time and to expect a life time, because the LMW silicone content, which is important to recovery the hydrophobicity of silicone rubber surface, show different results by each environmental factors.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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• pp.254-255
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• 2005

In this work, the effects of plasma treatment on surface properties of semi conductive silicone rubber were investigated in terms of X-ray photoelectron spectroscopy(XPS). The adhesion characteristics of semiconductive-insulating interface layer of silicone rubber were studied by measuring the T-peel strengths. As a result, semiconductive silicone rubber surfaces treated with plasma discharge led to and increase in oxygen-containing functional groups, resulting in improving the degree of adhesion of the semiconductive-insulating interface layer of silicone rubber. these results are probably due to the modifications of surface functional groups or polar component of surface free energy of the semi conductive silicone rubber.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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• pp.232-233
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• 2005

The Surface of semi-conductive silicone rubber was treated by oxygen plasma to improve adhesion and electric performance in joints between insulating and semi-conductive silicone materials. Surface characterizations were assessed using contact angle measurement and Fourier transform infrared spectroscope (FTIR). Adhesion level was understood from T-peel tests between plasma treated semi-conductive and insulating material. Electrical breakdown strength was measured to understand the charge of electrical performance. From the results, the oxygen plasma treatment produces a significant increase in function group of containing oxygen which can be mainly ascribed to the creation of carbonyl groups on the silicone surface from the strength were improved. Therefore it is concluded then plasma treatment leads to decrease voids originating form poor adhesive, and the improve the adhesion in silicone interface. So we could obtain higher electrical design level of silicone material used for electrical apparatus using oxygen plasma treatment.

• 조명전기설비학회논문지
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• 제14권1호
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• pp.14-21
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• 2000

본 논문은 수트리 열화된 가교폴리에틸렌(XLPE) 절연 지중케이블의 절연회복을 위해 개발된 실리콘 처리 기법의 현장적용 가능성을 검토하기 위해 수트리 열화된 325 $\textrm{mm}^2$ CN/CV 케이블을 수거하여 실리콘 처리하고, 시간의 경과에 따른 절연성능 향상도를 분석한 것이다. 시료 케이블의 절연회복을 평가하기 위해 교류절연파괴시험을 실시했다. 또 실리콘 처리케이블의 평가를 위해 진단시험 및 케이블 특성평가를 수행했다. 실리콘 처리후 1년 경과 시료 케이블올 분석한 결과, 실리콘액(silicone fluid)과 수분이 효과적으로 결합해 절연파괴강도가 상당히 증가한 것으로 나타났다. 실험결과를 종합해 볼 때 수트리로 열화된 케이블의 절연성능 향상에 실리콘 처리가 효과적인 것으로 나타났다.

• 한국식품과학회지
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• 제10권2호
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• pp.250-257
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• 1978

항산화제(抗酸化劑)인 TBHQ와 BHA/BHT와 소포제(消泡劑)인 methyl silicone등이 식용유의 저장성과 고온에서의 안전성에 미치는 영향을 알아보기 위하여 일련(一連)의 실험을 하였다. 실험결과 methyl silicone은 소포제로써뿐만 아니라 고온$(195^{\circ}C)$에서의 산패를 방지하였고 저장성에는 별 영향이 없었으며 TBHQ는 식용유를 고밀도 polyethylne병(용량 3.8l)에 넣어서 $32^{\circ}C$와 $38^{\circ}C$에서 1년간 저장 했을 때 산패를 지연시켰으나 고온에서의 안정성에는 별 영향을 주지 않음을 알았다. 한편, BHA/BHT(100ppm/100ppm)는 식용유의 저장성과 고온에서의 안정성에 별 도움이 되지 아니하였다. 또한 methyl silicone $1{\pm}0.5ppm$이 적정량(미국 FDA의 최대허용량 : 10ppm)이었으며 TBHQ는 FDA의 최대 허용량인 200ppm일때 가장 효과적임을 알았다.

• 한국전기전자재료학회논문지
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• 제19권2호
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• pp.153-157
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• 2006

In this work, the effects of plasma treatment on surface properties of semiconductive silicone rubber were investigated in terms of X-ray photoelectron spectroscopy (XPS) and contact angles, The adhesion characteristics of semiconductive-insulating interface layer of silicone rubber were studied by measuring the T-peel strengths, The results of the chemical analysis showed that C-H bonds were broken due to plasma discharge and Silica-like bonds(SiOx, x=3${\~}$4) increased, It is thought that semiconductive silicone rubber surfaces treated with plasma discharge led to an increase in oxygen-containing functional groups, resulting in improving the degree of adhesion of the semiconductive-insulating interface layer of silicone rubber. However, the oxygen plama for 20 minute produces a damaged oxidized semiconductive silicone rubber layer, which acts as a weak layer producing a decrease in T-peel strength, These results are probably due to the modifications of surface functional groups or polar component of surface free energy of the semiconductive silicone rubber.