
高模玻纤/聚丙烯酸热塑性树脂复合材料热解特性研究
黄逸舟, 陈煌, 黄明富, 喻雄, 王靖, 杨永杰, 冯学斌
高模玻纤/聚丙烯酸热塑性树脂复合材料热解特性研究
Study on Pyrolysis Characteristics of High Modulus Glass Fiber/ Polyacrylic Acid Thermoplastic Resin Composites
在热固性复合材料废弃物难以高值回收处理的背景下,热塑性复合材料有替代热固性复合材料的趋势,探究热塑性复合材料的热降解机理,有利于指导热塑性复材在不同工况下的使用以及后续的回收降解。利用热失重分析仪在氮气气氛下对比研究聚丙烯酸热塑性树脂(RE)和热塑性树脂玻纤复合材料(RE-FRP)在不同升温速率下的热降解行为。结果表明:RE-FRP复合材料在热降解速率达到最大时的温度比RE纯热塑性树脂高。采用Kissinger法测定的RE体系热降解活化能为196.76 kJ/mol,小于RE-FRP体系的热降解活化能232.91 kJ/mol。采用Flynn-Wall-Ozawa法计算活化能,RE纯树脂体系发生降解反应的表观活化能随降解度变化波动较小,降解反应机理较简单,而RE-FRP体系的表观活化能随着降解度的增加而增加,降解反应存在更复杂的机理。研究表明,与玻璃纤维复合提高了RE-FRP热塑性树脂的热稳定性。
In the context of the difficulty of high-value recycling and treatment of thermoset composite waste, thermoplastic composites have a tendency to replace thermosetting composites, and exploring the thermal degradation mechanism of thermoplastic composites is conducive to guiding the use of thermoplastic composites under different working conditions and the subsequent recycling and degradation. The thermal degradation behavior of polyacrylic acid thermoplastic resin (RE) and thermoplastic resin glass fiber composites (RE-FRP) under different heating rates was compared and studied by a thermogravimetric analyzer under nitrogen atmosphere. The results show that the temperature of RE-FRP composites is higher than that of RE pure thermoplastic resin when the thermal degradation rate reaches the maximum. The activation energy of thermal degradation of the RE system measured by the Kissinger method was 196.76 kJ/mol, which was 232.91 kJ/mol less than that of the RE-FRP system. The Flynn-Wall-Ozawa method was used to calculate the activation energy, the apparent activation energy of the degradation reaction of the RE pure resin system fluctuated little with the change of degradation degree, the degradation reaction mechanism was simple, while the apparent activation energy of the RE-FRP system increased with the increase of degradation degree, and the degradation reaction had a more complex mechanism. The study shows that the thermal stability of RE-FRP thermoplastic resin is improved by combining with glass fiber.
聚丙烯酸热塑性树脂 / 热塑性树脂玻纤复合材料 / 热降解 / 动力学
Polyacrylic acid thermoplastic resin / Thermoplastic resin glass fiber composite / Thermal degradation / Dynamics
TQ322 / TB324
1 |
申桂英.高性能热塑性塑料的品种与市场[J].精细与专用化学品,2016,24(9):1-4.
|
2 |
郭强,徐恒元,何凯,等.树脂基复合材料废弃物回收再利用现状及发展趋势[J].材料导报,2019,33(增刊2):634-638.
|
3 |
|
4 |
|
5 |
|
6 |
王子健,周晓东.连续纤维增强热塑性复合材料成型工艺研究进展[J].复合材料科学与工程,2021(10):120-128.
|
7 |
陶永亮,黄登懿,陈曦.PMMA/ASA合金材料在汽车零件中的应用[J].上海塑料,2020(1):41-45.
|
8 |
朱燕.丙烯酸树脂市场分析与展望[J].粘接,2012,33(11):31-33.
|
9 |
罗云烽,姚佳楠.高性能热塑性复合材料在民用航空领域中的应用[J].航空制造技术,2021,64(16):93-102.
|
10 |
周冰洁,张代军,张英杰,等.高性能热塑性复合材料在航空发动机短舱上的应用[J].航空制造技术,2020,63(7):86-91.
|
11 |
ABE H,
|
12 |
|
13 |
|
14 |
郭俊鑫,吴正环,黎振,等.丙烯酸树脂及其复合材料热降解动力学研究[J].塑料科技,2020,48(2):10-15.
|
15 |
卢林刚,张晴,徐晓楠,等.一种无卤阻燃聚丙烯的热分解动力学[J].高分子材料科学与工程,2010,26(11):39-43.
|
16 |
魏涛,慈书亭,何敏,等.纳米蒙脱土、水滑石对阻燃型长玻纤增强聚丙烯阻燃性能及其降解动力学的影响[J].功能材料,2015,46(23):23051-23055.
|
17 |
周晓东,戴干策.过氧化物的引发作用对玻璃纤维增强聚丙烯界面结合的影响[J].高分子材料科学与工程,2000(5):88-91.
|
18 |
|
19 |
|
20 |
|
21 |
|
22 |
|
23 |
曾文茹,姚斌,宗若雯,等.非线性等转化率法研究聚苯乙烯热解反应活化能与转化率的关系[J].高分子材料科学与工程,2008(8):128-131.
|
24 |
|
25 |
|
26 |
|
27 |
|
28 |
|
29 |
|
30 |
|
31 |
|
/
〈 |
|
〉 |