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Insulating materials,also known as dielectrics,are non-conductive materials under the allowable voltage,but not absolutely non-conductive materials.Under the action of a certain applied electric field strength,processes such as conduction,polarization,loss,and breakdown will also occur,and long-term use Aging also occurs.

my country is a large electrical insulating material market,accounting for 45%of the market share.According to statistics,the global insulating material market size in 2018 was 8.56 billion US dollars,and the Chinese insulating material market size was 25 billion yuan.It is estimated that the global insulating material market size will reach 10.2 billion US dollars in 2021,and the Chinese market will reach 29.8 billion yuan.

绝缘材料又称电介质，是在允许电压下不导电的材料，但不是绝对不导电的材料，在一定外加电场强度作用下，也会发生导电、极化、损耗、击穿等过程，而长期使用还会发生老化。

我国是大的电气绝缘材料市场，占45%的市场份额。据统计，2018年全球绝缘材料市场规模为85.6亿美元，中国绝缘材料市场规模为250亿元，估计2021年全球绝缘材料市场规模达到102亿美元，中国市场达到298亿元。