- 學位論文
探討聚吡咯導電高分子在紡絲與塗佈製程之電熱表現
Study on the electrothermal performance of polypyrrole conductive polymer in electrospun and spin coating process
摘要
隨著科技發展，導電聚合物於生活中的應用漸廣，生醫領域的應用也逐漸被人發掘，如生物感測器或者是人工肌肉等應用。聚吡咯(PPy)作為常見材料且單體容易氧化與調控同時又具有良好熱穩定性以及導電性。軟性導電聚合物在穿戴式發熱裝置以及生醫領域的其他應用都非常適合使用，本研究即利用兩種不同的製程方式(旋轉塗佈與靜電紡絲)，以及不同的高分子原料(聚己內酯(PCL)與聚吡咯(PPy))，製備不同的基材，並透過調控原位聚合的反應物參數，生成不同的聚吡咯數量，再利用焦耳熱效應，供給電壓使導電材料發熱，藉此探討製程及聚合參數對於導電聚合物的發熱表現之影響；電熱響應的驗證部分是透過電壓熱響應、溫度穩定性以及重複開關測試結果分別驗證導電高分子最大發熱數值、材料發熱穩定性以及重複開關時的溫度穩定性。實驗結果顯示，隨著電壓提升，發熱量也會隨之升高，表現出溫度的可控性；在相同製備條件下，含聚吡咯之聚己內酯溶液製備出的高分子材料在進行原位聚合後表現的發熱行為相較單以聚己內酯為基底的導電高分子材料有更加顯著的發熱效果；此外，在相同製程以及相同材料下，使用較高濃度的反應物進行聚合也會有較大幅度的發熱現象。溫度穩定性結果則表現出旋塗製程製備之導電高分子材料在高電壓時較容易有發熱不穩定的狀態，故在重複開關測試時選用的是靜電紡絲製程的導電高分子；重複開關測試表現出良好的穩定性，且靜電紡絲內混有聚吡咯之高分子在通電時只需6 V即可升溫約25 ℃，無混和則需要15 V，故未來有機會應用於穿戴發熱裝置上。 關鍵字：聚吡咯、導電紡絲纖維、導電旋塗薄膜、電熱表現
並列摘要
With the development of science and technology, conductive polymers are widely used in daily life, and their applications in the field of biomedicine are gradually being discovered, such as biosensors or artificial muscles. Polypyrrole (PPy) is a common material and its monomer is easy to be oxidized and regulated, and it also has good thermal stability and electrical conductivity. Soft conductive polymers are very suitable for use in wearable heating devices and other applications in the biomedical field. In this study, two different manufacturing methods (spin coating and electrospun) and different polymer materials (polycaprolactone (PCL) and polypyrrole (PPy)) to prepare different substrates, and by adjusting the reactant parameters of in-situ polymerization, different quantities of polypyrrole are generated, and then the Joule heating effect is used to supply voltage to heat the conductive material , to explore the influence of process and polymerization parameters on the heat generation performance of conductive polymers; the verification part of the electrothermal response is to verify the maximum heat generation value of conductive polymers and material heat generation stability through voltage thermal response, temperature stability and repeated switch test results performance and temperature stability during repeated switching. The experimental results show that as the voltage increases, the calorific value will also increase, showing the controllability of the temperature; Compared with polycaprolactone-based conductive polymer materials, the exothermic behavior after polymerization has a more significant exothermic effect; in addition, under the same process and the same material, polymerization with a higher concentration of reactants will also there is a large fever phenomenon. The temperature stability results show that the conductive polymer material prepared by the spin-coating process is more likely to have an unstable state of heat generation at high voltage, so the conductive polymer material of the electrospinning process was selected in the repeated switch test; the repeated switch test It shows good stability, and the electrospun polymer mixed with polypyrrole can heat up to about 25 °C with only 6 V when it is energized, and 15 V without mixing, so it has the opportunity to be used in wearable heating devices in the future . Key Words: polypyrrole, conductive polymer,conductive electrospun fibers, conductive spin-coated film, electrothermal performance