• 제목/요약/키워드: 상호침입망목

검색결과 10건 처리시간 0.029초

상호침입망목 에폭시 복합재료의 교류절연파괴 특성 및 기계적 특성에 관한 연구 (A study on the AC dielectric breakdown characteristics and mechanical characteristics of interpenetraing polymer network epoxy composites)

  • 손인환;이덕진;김명호;김경환;김재환
    • E2M - 전기 전자와 첨단 소재
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    • 제9권7호
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    • pp.702-707
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    • 1996
  • In this paper, in order to improve the withstand voltage properties of epoxy resin, IPN(interpenetrating polymer network) method was introduced and the influence was investigated. The single network structure specimen(E series), simultaneous interpenetrating polymer network specimen(EM series) and pseudo interpenetrating polymer network(EMP series) specimen were manufactured. In order to understand the internal structure properties, scanning electron microscopy method was utilized, and glass transition temperature was measured. Also, AC voltage dielectric breakdown strength, tensile strength and impact strength were measured to investigate the influence upon electrical and mechanical properties. As a result, it was confirmed that simultaneous interpenetrating polymer network specimen was the most execellent.

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2,3 성분 상호침입망목 에폭시 복합재료의 절연 파괴 특성에 관한 연구 (A study on the dielectric breakdown properties of two and three interpenetrating polymer network epoxy composites)

  • 김명호;김경환;손인환;이덕진;장경욱;김재환
    • E2M - 전기 전자와 첨단 소재
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    • 제9권4호
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    • pp.364-371
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    • 1996
  • In this study, in order to investigate the applicability of IPN structure to epoxy resin which has been widely used as electrical and electronic insulating materials, DC dielectric breakdown properties and morphology were compared and analyzed according to variation of network structure, using the single network structure specimen formed of epoxy resin alone, interpenetrating polymer network specimen formed of epoxy resin/methacrylic acid resin, and interpenetrating polymer network specimen formed of epoxy resin/methacrylic acid resin/polyurethane resin. As results of the measunnent of DC dielectric breakdown strength at 50[.deg. C] and 130[>$^{\circ}C$], IPN specimen formed of epoxn, resin 100[phr] and methacrylic acid resin 35[phr] was the most excellent, and which corresponded to the SEM phenomena. The effect of IPN was more remarkable at high temperature region than at low temperature region. It is supposed that the defect of epoxy resin, dielectric breakdown strength is lowered remarkably at high temperature region, be complemented according to introducing IPN method.

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망목 구조 변화에 따른 에폭시 수지의 유전 특성에 관한 연구 (A Study on the Dielectric Characteristics in Epoxy Resins due to Variation of Network Structures)

  • 김재환;손인환;심종탁;김경환;김명호;최병옥
    • E2M - 전기 전자와 첨단 소재
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    • 제10권7호
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    • pp.651-658
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    • 1997
  • In this paper, effect of interpenetrating polymer network(IPN) introduction on the dielectric properties, heat proof properties, internal structure and defects of the Epoxy/SiO$_2$composite materials, were investigated. we reported a relation between network structures and electrical properties, especially dielectric characteristics with variation of network structures for epoxy composite materials. According to experimental results, the specimens which have single network structures have lower dielectric constant than interpenetrating polymer network(IPN) specimens, but have relatively larger dependency to variation of temperature and frequency. It was confirmed that change of structures is attained by introducing of IPN to insulating materials. Therefore it is counted that introduction of multiple structure including IPN is necessary to improve heat proof and electrical properties.

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흡수열화에 따른 에폭시 복합체의 임펄스 절연파괴특성에 관한 연구 (A Study on the Impulse Breakdown Characteristics of Epoxy Composites due to Water Absorption Aging)

  • 이덕진;손인환;신성권;김명호;김경환;홍진웅;김재환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2000년도 하계학술대회 논문집
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    • pp.156-159
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    • 2000
  • In this paper, the physical and electrical properties of epoxy composites are investigated at boiling absorption condition to observe the influences of moisture. Also, in order to improve water resistance of matrix resin, IPN method was introduced and the influence was investigated. In order to analyze the basic physical properties of samples, scanning electron microscopy method was utilized, and impulse voltage dielectric strength was measured. As a result, it was verified that, in case of IPN samples, the ratio of moisture absorption was decreased due to the improvement of adhesion strength, and impulse voltage dielectric strength of SN sample was degraded abruptly as boiling time and filler content were increasing, while IPN samples were slowly degraded due to the improvement of adhesion strength.

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비등흡수에 의한 에폭시 복합재료의 기계적 특성 및 전기적 특성 변화에 관한 연구 (A Study on the variations of mechanical and electrical property of epoxy composites due to boiling absorption)

  • 이덕진;신성권;김재환
    • 조명전기설비학회논문지
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    • 제14권1호
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    • pp.53-58
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    • 2000
  • 본 논문에서는 에폭시 복합 절연재료를 옥외에서 사용할 경우 수분의 영향을 고찰하기 위하여 비등홉수조건에 서 기계적 강도와 절연파괴강도의 변화를 측정하였다. 또한 내습성을 개선하기 위한 방법으로 이전에 보고하였던 상호침입망목 수법을 도입하여 그 효과를 비교 검토하였다. 두 종류의 모체수지에 충진재를 0, 50, 100 [phr] 첨가하여 총 6종류의 시편을 제작하였다. 그 결과, 비등흡수시간과 충진재 함량이 증가함에 따라 수분 흡수율이 증가되었고, 기계적 강도와 절연파괴강 도가 저하됨올 확인하였다. 반면 상호침입망목 시편의 경우에서는 접착강도의 개선에 의하여 홉수율이 낮아지고, 기계적 강도와 절연파괴 강도의 저하율이 완화됨을 확인하였다.

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전기 기기용 봉지 및 함침 에폭시 복합 재료의 내열성 및 절연파괴 특성 개선에 관한 연구 (A study on the improvement of thermostability and dielectric breakdown strength for packaging and impregnating epoxy composite materials for electrical machines and apparatus)

  • 김명호;김재환
    • E2M - 전기 전자와 첨단 소재
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    • 제7권6호
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    • pp.527-533
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    • 1994
  • In this study, it was studied on dielectric breakdown strength and thennostability properties due to the structure variation of matrix resin and treatment of coupling agent of epoxy insulating materials. The interpenetrating network structure was formed by simultaneous heating curing the epoxy resin with single network structure and the methacrylic acid resin. Also inner structure was observed and the glass transition temperature was measured on these three type specimens. Dielectric breakdown properties were investigated by applying DC, AC and impulse voltage. As a result, the glass transition temperature and the dielectric breakdown strength of specimen with interpenetrating network structure was more higher than another two type specimens.

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상호침입망목 에폭시수지의 교류 절연파괴특성 및 기계적 특성 (AC Dielectric Breakdown Properties and Mechanical Properties of Interpenetrating Polymer Network Epoxy Resin)

  • 이덕진;김명호;김경환;심종탁;손인환;김재환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1995년도 추계학술대회 논문집
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    • pp.320-323
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    • 1995
  • In this paper, in order to improve withstand voltage properties of epoxy resin, IPN(interpenetrating polymer network) method was introduced and the influence was investigated. The sing1e network structure specimen(E series), simultaneous interpenetrating polymer network specimen(EMF series) and pseudo interpenetrating polymer network(EMP series) specimen were manufactured. In order to understand the internal structure properties, scanning electron microscopy method was utilized, rind glass transition temperature was measured. Also, AC voltage dielectric strength, tensile strength and impact strength were measured to investigate influence upon electrical and mechanical properties. As a result, it was confirmed that simultaneous interpenetrating polymer network specimen was the most execellent.

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에폭시 복합재료의 내트래킹성에 미치는 상호침입망목의 효과 (The Effect of Interpenetrating Polymer Network upon Tracking Resistance of Epoxy Composite Materials)

  • 김탁용;이덕진;손인환;김명호;김경환;김재환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1996년도 추계학술대회 논문집
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    • pp.225-229
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    • 1996
  • In this study, in order to develop outdoor insulating materials, SIN(simultaneous interpenetrating polymer network) was introduced to Epoxy resin and the environment resistance was investigated. The single network structure specimen(E series) formed of Epoxy resin alone and simultaneous interpenetrating polymer network specimen (EM series) in which epoxy resin was taken as the first network and methyl methacrylate resin as the second network were manufactured. Ten kinds of specimens were manufacture by filler (SiO$_2$) content. SEM were utilized in order to confirm their network structure changes, and AC voltage dielectric strength was measured. Also, UV-test and tracking test were carried out investigate the environment resistance characteristic. Therefore the variations of network structure were happened as a result of SEM test, and it was confirmed that simultaneous interpenetrating polymer network specimens were more excellent than single network structure specimens.

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비등에 따른 에폭시 복합체의 내트래킹성과 기계적강도에 관한 연구 (A Study on The Tracking Resistance and Mechanical strength of Epoxy Composites due to Boiling Absorption)

  • 김경민;김탁용;이덕진;강태오;홍진웅;김재환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2000년도 하계학술대회 논문집
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    • pp.165-168
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    • 2000
  • This paper presents the tracking resistance and mechanical strength due to boiling absorption of epoxy resin. The single network structure specimen(E series) formed of epoxy alone and interpenetrating polymer network(IPN) structure specimen(EM series) which epoxy resin was taken as first network and methacrylic acid resin as second network were manufactured. As adding $SiO^2$ filler classified by o[phr], 50[phr] and 100[phr] to those specimens, six kinds of specimens were manufactured and boiled in water during 2, 4, 8, 16, 32 and 64[hours]. As a result, it was confirmed that the tracking breakdown time of E series showed a abrupt decrease with boiling time increasing, but that of EM series was decreasing smoothly. Also, it was verified that the degrading rates of mechanical strength was lowerd according to improvement of adhension strength in case of EM series.

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동시상호침입망목 에폭시 복합재료의 내전압 특성에 관한 연구 (A Study on the Withstand Voltage Properties of Simultaneous Interpenetrating Polymer networks EPOXY Composite Materials)

  • 손인환;신현택;가출현;김명호;박창옥;김경환;김재환
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1993년도 하계학술대회 논문집 B
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    • pp.572-574
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    • 1993
  • In order to obtain superior breakdown properties of Epoxy/$SiO_2$ composite materials at room and high temperature, the simultaneous interpenetrating polymer networks(SIN) is introduced into the Epoxy resin. As a result, it is observed that dielectric breakdown strength tends to increase according to the following order ; Epoxy/$SiO_2$ specimens, specimens treated with coupling agent and SIN introduced specimens which have stable temperature characteristics at room and high temperature. For introducing SIN Epoxy/$SiO_2$ composite material, rise of glass transition temperature and suppression of defects in its internal structure is achieved. This in turn improves the dielectric breakdown strength and the heat proof property of Epoxy/$SiO_2$ composite materials.

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