Research in the Deterioration of Organic Materials in Snowy Region

雪域有机物劣化研究

• 批准号: 08650355
• 负责人: HASEGAWA Seiichi
• 金额: $ 1.41万
• 依托单位: AKITA NATIONAL COLLEGE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650355/
• 关键词: organic insultaing material; tracking deterioration; precipitaion; acid and saline snow; hydrophobicity; water absorption; contact angle; tracking resistance; ポリマー絶縁材料; シンチレーション放電

Recently, the organic insulating materials which have a superior electric performance to porcelain, have got wide use in outdoor power appratus and equipment. On the coast of Japan Sea the outdoor organic insulating materials are exposed to snow cantaining acid and salinity. So it is suggested that the surfce deterioration of the materials would be affected by the snow. In this research the infuluence of the snow on the tracking deterioration of organic materials have been investrigated. The various samples PC,PE and ABS are investigated by accelated degradation.Artificial acis and salinity solution which agree with the actual ingredient and composition of the precipitation used in this investigation. After various samples are soaked in this solution, the surface hydrophobicity, tracking resistance, water absorption, loss tangent tan delta and microscopic surface apperarance for the soaked are compared with those for the original ones in order to observe the surface degradation process … More es.Then soaked samples are frozen at -20ﾟC in the freezer more than 24 hours and these samples are tested with IEC-587 inclined-plane tracking method.The results obtained from this investigation are summarized as follows.(1)The surface of some organic insulating materials are degrated by the solution containing acid and salinity. The contacrt angles of soaked sammples are decreased with soaked period. It is clear that surface of the materials suffer large chemical attack. Therefore hydrophobicty of the materials decrease, which results in cutting down the racking resistance.(2)In general, water absorptionof the organic materials is little at most 1%. The materials, which have resistivity to action of acid, absorb water less than 0.2%. In addition, the value of loss tanngent gradually increases with the absorption.(3)Some frozen materials, such as, PE and PP decreased the tracking resistance remarkably. Because of acid snow and cold condition, the life time of the outdoor organic insulating materials decreases particularly. Less

近年来，有机绝缘材料由于其电气性能优于瓷器，在户外电力器具和设备中得到了广泛的应用。在日本海沿岸，室外有机绝缘材料暴露在含有酸和盐的雪中。因此表明材料的表面劣化会受到雪的影响。在这项研究中，研究了雪对有机材料跟踪劣化的影响。通过加速降解对各种样品 PC、PE 和 ABS 进行研究。人工酸和盐溶液与本研究中使用的沉淀物的实际成分和组成一致。各种样品在此溶液中浸泡后，将浸泡后的表面疏水性、耐漏电起痕性、吸水率、损耗角正切值和微观表面形貌与原样品进行比较，以观察表面降解过程。然后将浸泡后的样品在冰箱中-20°C冷冻24小时以上，并用IEC-587斜面测试。 本研究得到的结果总结如下：(1)某些有机绝缘材料的表面会因含酸和盐的溶液而发生降解。浸泡样品的接触角随浸泡时间的延长而减小。很明显，材料表面遭受了很大的化学侵蚀。因此材料的疏水性降低，从而导致耐腐蚀性降低。(2)一般情况下，有机材料的吸水率较小，最多1%。该材料具有耐酸作用，吸水率小于0.2%。另外，损耗角正切值随着吸收而逐渐增大。(3)一些冷冻材料，如PE、PP，其耐漏电起痕性显着降低。由于酸雪和寒冷条件，户外有机绝缘材料的使用寿命尤其缩短。较少的

项目成果

長谷川 誠一: "積雪寒冷環境における有機絶縁材料の劣化現象" 寒冷環境工学教育研究センター年報. 第11号. 19-24 (1997)

长谷川诚一：《有机绝缘材料在雪天和寒冷环境中的劣化现象》寒冷环境工程教育研究中心年报第11. 19-24号（1997）。

長谷川 誠一: "純粋有機絶縁材料の耐トラッキング性に対するSO2系酸性雨の影響" 放電,誘電絶縁材料合同研究会資料. ED-96-85. 57-63 (1996)

Seiichi Hasekawa：“基于 SO2 的酸雨对纯有机绝缘材料耐漏电起痕性的影响”放电和介电绝缘材料联合研究组的材料 ED-96-63 (1996)。

Seiichi HASEGAWA et al.: "The Influence of Acid Rain on the Tracking Deterioration of Organic Materials" Proceeding of The 5th ICPADM. 2. 754-757 (1997)

Seiichi HASEGAWA 等：“酸雨对有机材料跟踪恶化的影响”第五届 ICPADM 论文集。

長谷川誠一: "積雪寒冷環境における有機絶縁材料の劣化現象" 寒冷環境工学教育研究センター年報. 第11号. 19-24 (1997)

长谷川诚一：《有机绝缘材料在雪天和寒冷环境中的劣化现象》寒冷环境工程教育研究中心年报第11. 19-24号（1997）。

Seiichi HASEGAWA et al.: "The Effect of SO2 Acid Rain on the Tracking Deterioratiou of the Pure Organic Materials" Proceeding of Conferrence Descharge and Dielectric. Vol.ED-96-85. 57-63 (1996)

Seiichi HASEGAWA 等人：“SO2 酸雨对纯有机材料跟踪恶化的影响”Decharge and Dielectric 会议论文集。