| abstract |
The invention provides a nanocellulose-based electric heating film and a preparation method thereof. After the nanocellulose powder is dispersed into a uniform suspension, natural graphite powder is added for dispersion, which is helpful for the suspension of the natural graphite powder in the nanocellulose powder. The turbid liquid is fully dispersed and uniform, and finally nano copper powder or tourmaline powder is added for synergy to effectively increase the heating temperature of the electric heating film in low pressure, and the raw material sources of cellulose powder, natural graphite powder, nano copper powder and tourmaline powder are wide. , the price is low, and the electric heating film with low pressure and high heat can be prepared without adding connecting material and under the premise of lower production cost. In general, the problems of the need to use a connecting material with poor environmental performance and high cost in the preparation of the electrothermal film can be effectively solved. |