| Summary: | 碩士 === 逢甲大學 === 紡織工程所 === 94 === Due to the conventional resistance wire has the disadvantages of high energy consumption and high voltage demount, a new generation material--electrothermal film was developed in this study to improve the above-mentioned demerits.
In this study, the electrothermal film is made of carbon black, graphic anode and the carbon fiber which were used as filler to mix with epoxy resin. The impact of parameters, such as added ratio of filler, process, diameter and shape of carbon black, length of carbon fiber, on the electrothermal film are also discussed in this study. Finally, after connecting with electrodes on both sides, the temperature profile on the film’s surface under various voltage and time are observed.
The results show that the above-mentioned factors play an important roll on the surface resistance before the critical value of Percolation. The material has a significant influence on the surface resistance when it above the critical value of Percolation. In addition, the least energy consumption is only 1.75 W at the temperature of 100 ℃; furthermore, considering the safety in usage, the supply voltage can be low down to 16.5 V, which is quite below the Safety Voltage. It is proved that the electrothermal film has a significant improvements in energy consumption and safety.
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