• 한국정밀공학회지
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• 제29권1호
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• pp.13-18
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• 2012

In this study, silicone injection molding technology with curved thermoplastic insert was developed to produce super-hydrophobic surface. Thermoplastic insert part and injection mold design of base plastic cover were performed to produce cost effective hydrophobic surface part. An optimization process of part thickness for thermoplastic insert part was performed with transient thermal analysis under silicone over-molding process condition. Structural thermal analysis of silicone injection mold was also performed to obtain uniform temperature condition on the surface of micro-patterned mold core. Super-hydrophobic surface for the silicone injection molded part with thermoplastic insert could be verified from the measurement of contact angle. It was shown that the averaged contact angle was over $140^{\circ}$.

• Journal of Yeungnam Medical Science
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• 제21권2호
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• pp.215-223
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• 2004

실리콘의 부적절한 피하 주입으로 발생한 폐색전증의 방사선학적 특징은 초기에는 호흡기 증상만 보이지만 염증 매개성 반응이 진행함에 따라 양측 폐 침윤이 급격히 진행하는 것을 볼 수 있었다. 또한 실리콘의 비중이 혈액보다 낮아 중력 비의존성 분포를 보임을 알 수 있었고, 이는 기존의 다른 원인에 의한 폐색전증과 구분되는 소견이다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2011년도 춘계학술대회 논문집
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• pp.893-894
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• 2011

• 한국산학기술학회논문지
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• 제10권12호
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• pp.3919-3924
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• 2009

본 연구는 망막박리에서 실리콘 기름주입술에 대한 임상적 결과를 분석한 것이다. 1999년부터 2002년까지 유리체절제술과 실리콘기름 주입술를 받은 44명 환자의 45안을 연구하였다. 결과는 다음과 같다. 1. 유리체절제술 후 시력이 두 줄 이상 호전된 경우는 45안 중 24안(53%)이었으며, 45안 중 18안(40%)에서는 시력의 변화가 없었다. 2. 실리콘기름 주입술 후 16안(6.3%)에서 실리콘기름을 제거하였으며 그 중 1안에서 망막박리가 재발되어 실리콘기름 재주입술을 시행하여 망막재유착을 이루었다. 3. 재수술을 포함하여 해부학적인 재유착은 45안 중 44안(97%)에서 이루었다. 4. 실리콘기름주입 후 발생한 합병증은 백내장(16안), 녹내장(10안), 실리콘기름의 유화(5안), 각막병증(2안), 재발성 망막박리 (1안)이었다. 결론적으로 망막박리 환자에게 일차수술로 유리체 절제술 후 유리체 대용물로 실리콘 기름을 사용하는 것은 여러 합병증의 발생에도 불구하고 높은 해부학적 성공률과 시력 개선효과를 보여주었다.

• Tuberculosis and Respiratory Diseases
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• 제40권5호
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• pp.610-615
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• 1993

저자들은 colporrhaphy를 목적으로 실리콘 피하주사 후 호흡곤란을 주소로 내원한 2명의 환자에서 기관지폐포세척액 검사, 경기관지 폐생검, 고해상 컴퓨터 단층촬영, 폐동맥조영술 등을 시행하여 폐색전증으로 인한 급성호흡부전으로 진단하고 지지요법만으로 치료한 1예와 사망한 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• Archives of Plastic Surgery
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• 제33권6호
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• pp.700-705
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• 2006

Purpose: For hypertrophic scars and keloids no universally effective treatment modality exists. Surgical revision, intralesional steroid injection, silicone gel sheeting, pressure, laser, and others have been used with variable success, but many treatments are associated with high recurrence rates. Although optimal treatment remains undefined, successful treatment can be obtained through a combined therapeutic approach. Methods: We used three therapeutic modalities in combination, which are intralesional injection of triamcinolone acetonide, silicone gel sheeting, and 585 nm flashlamp-pumped pulsed dye laser. Fifty-eight cases of hypertrophic or keloid scar were treated by combined therapeutic regimen for mean period of 18 months. The changes of thickness, color, and pliability of scars were evaluated with clinical photographs by grading scale. Results: As summing the grades and categorizing the result into three group, we obtained 28% good, 67% fair, and 5% poor results. There was a desirable improvement of scars with insignificant adverse effects. Conclusion: Combination of intralesional steroid injection, silicone gel sheeting, and pulsed dye laser can lead to successful treatment of hypertrophic scar and keloid.

• Tuberculosis and Respiratory Diseases
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• 제57권2호
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• pp.193-196
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• 2004

저자들은 실리콘 액을 이용한 질 성형술 후에 급성호흡 곤란 증후군을 보인 환자에서 경기관지 폐생검으로 실리콘에 의한 것으로 생각되는 폐포 대식세포내의 봉입체를 확인하고 대증적인 치료로 호전된 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• E2M - 전기 전자와 첨단 소재
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• 제10권9호
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• pp.945-951
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• 1997

Inorder to investigated electrical conduction characteristics of silicone oils due to viscosity variation we studied the electrical conduction properties at temperature range of 10~110[$^{\circ}C$] and electrical field from 1 to 1.33$\times$10$^4$[V/cm] The viscosity of used specimens was low viscous(1, 2, 5[cSt]) silicone oils. It was shown the ohmic conduction characteristics in low temperature and low field by Ion dipole and humidity included specimen. And we known the conduction mechanism due to electron injection by Schottky's effect in the high temperature an d high field region.

• Design & Manufacturing
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• 제17권1호
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• pp.1-5
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• 2023

In multi-material injection molding, since two or more materials with different process conditions are used, it is essential to maximize process efficiency by operating the cooling or heating system to a minimum. In this study, Liquid silicone rubber (LSR) that can be cured at a low temperature suitable for the multi-material injection molding was selected and the cure behavior according to the process conditions was analyzed through differential scanning calorimetry (DSC). Dynamic measurement results of DSC with different heating rate were obtained, and through this, the total heat of reaction when the LSR was completely cured was calculated. Isothermal measurement results of DSC were derived for 60 minutes at each temperature from 80 ℃ to 110 ℃ at 10 ℃ intervals, and the final degree of cure at each temperature was calculated based on the total heat of reaction identified from the Dynamic DSC measurement results. As the result, it was found that when the temperature is lowered, the curing start time and the time required for the curing reaction increase, but at a temperature of 90 ℃ or higher, LSR can secure a degree of cure of 80% or more. However, at 80 ℃., it was found that not only had a relatively low degree of curing of about 60%, but also significantly increased the curing start time. In addition, in the case of 110 ℃, the parameters were derived from experimental result using the Kamal kinetic model.

• Tuberculosis and Respiratory Diseases
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• 제51권2호
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• pp.166-172
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• 2001

저자들은 외음부에 불법적인 실리콘액 피하주사 후 미만성 폐출혈을 동반한 임상적으로 진단한 급성호흡곤란 증후군 2예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.