Preparation method of starch/polysiloxane biological composite super-electric insulating material with three-dimensional nanopore structure

The invention discloses a preparation method of a starch/polysiloxane biological composite super-electrical insulating material with a three-dimensional nanopore structure, which comprises the following steps: S1, preparing a starch suspension: mixing corn starch and deionized water, heating in a water bath and stirring to obtain a suspended starch liquid, and cooling to room temperature for later use; s2, preparing composite gel, and regulating the pH value by adding acetic acid; and S3, preparing the starch/polysiloxane biological composite super-electric insulating material S/PBID. The S/PBID prepared by the preparation method disclosed by the invention has good hydrophobicity, excellent dielectric property and excellent insulating property, and also shows relatively good insulating property under N2 gas. 本发明公开了一种具有三维纳米孔结构的淀粉/聚有机硅氧烷生物复合超电绝缘材料的制备方法，它包括以下步骤：S1、制备淀粉悬浮液：将玉米淀粉和去离子水混合，进行水浴加热并搅拌，获得悬浮淀粉液，冷却至室温备用；S2、制备复合凝胶，并通过加入乙酸调控pH值；S3、制备淀粉/聚有机硅氧烷生物复合超电绝缘材料S/PBID。本发明所制备的S/PBID具有良好的疏水性，优异的介电性能，优异的绝缘性能，在N2气体下也表现出了