| 微胶囊红磷对电气用硅橡胶的阻燃改性研究 |
| Flame Retardant Modification of Microcapsule Red Phosphorus on Silicone Rubber |
| 投稿时间：2017-06-22 修订日期：2017-06-22 |
| DOI： |
| 中文关键词: 硅橡胶 改性氢氧化铝 微胶囊红磷 无卤阻燃剂 |
| 英文关键词: methyl vinyl silicone rubber modified aluminum hydroxide microcapsule red phosphorus halogen-free flame retardant |
| 基金项目:云南电网有限责任公司电力科学研究院科技项目(YNKJQQ00000283)；国家自然科学基金青年科学(51308063) |
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| 中文摘要: |
| 硅橡胶具有优异的的耐热性、柔软性、耐候性、绝缘性而被广泛应用于各个领域,尤其在电气绝缘行业,硅橡胶被用作新型电缆材料、绝缘套管、绝缘子伞裙等各类绝缘器件。但硅橡胶阻燃性不足,在过高温度或高电压条件下会产生阴燃并有可能导致有焰燃烧而引发火灾。目前在提高硅橡胶阻燃性方面大都采用卤系阻燃剂,但这类材料在燃烧时会产生有毒气体而危害人类健康。因此,本文采用改性氢氧化铝(m-ATH)/微胶囊红磷的无卤复合阻燃剂对硅橡胶进行阻燃改性,并与m-ATH/十溴二苯乙烷复合阻燃剂进行对比。研究了低成本无卤复合阻燃剂对硅橡胶力学性能、电性能、阻燃性能等方面的影响作用。结果表明m-ATH/微胶囊红磷无卤复合阻燃剂对硅橡胶具有良好的阻燃协效作用。 |
| 英文摘要: |
| Methyl vinyl silicone rubber with excellent heat resistance, softness, weatherability and insulation is widely used in various fields, especially in the electrical insulation industry. Methyl vinyl silicone rubber is applied as insulated devices, such as a new kind of cable material, insulated casing, insulator umbrella skirt and so on. However, due to lack of flame resistance, methyl vinyl silicone rubber would spontaneously combust and may be converted into a flame burning in high temperature or high voltage conditions, which can cause a fire. At present, most of the halogen-based flame retardants are used to improve the flame resistance of methyl vinyl silicone rubber. In the event of the material combustion, toxic gases can be produced and harmful to human health. In this paper, the flame resistance of modified methyl vinyl silicone rubber is modified by using halogen-free composite flame retardant with modified aluminum hydroxide (m-ATH) and microcapsule red phosphorus, which is compared with the flame resistance of modified methyl vinyl silicone rubber that is modified by using composite flame retardant with m-ATH and decabromodiphenyl ethane. The effects of halogen-free composite flame retardant on the mechanical properties, electrical properties and flame resistance properties of methyl vinyl silicone rubber were studied. The results show that halogen-free composite flame retardant with m-ATH and microcapsule red phosphorus has good flame resistance synergistic effect on methyl vinyl silicone rubber. |
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