本文選題：環(huán)氧化合物　切入點(diǎn)：碳納米管　出處：《北京化工大學(xué)》2015年碩士論文

【摘要】：纖維復(fù)合材料相比于傳統(tǒng)的金屬材料,強(qiáng)度、模量更高而質(zhì)量更輕,因而廣泛的應(yīng)用于航空航天、交通運(yùn)輸、風(fēng)力發(fā)電和體育器材等領(lǐng)域。作為先進(jìn)的各向異性材料,纖維復(fù)合材料的徑向性能遠(yuǎn)低于軸向性能。碳納米管(CNTs)的力學(xué)性能優(yōu)異,通過(guò)在基體中引入碳納米管可以有效改善纖維復(fù)合材料的徑向性能。然而由于碳納米管的表面張力和比表面積較大,易在基體中發(fā)生團(tuán)聚從而限制了其優(yōu)異性能的發(fā)揮。本文在多壁碳納米管(MWCNTs)的氨基化改性基礎(chǔ)之上,將其與三種不同的單官能度環(huán)氧化合物正丁基縮水甘油醚(BGE)、芐基縮水甘油醚(EP 692)和十二-十四烷基縮水甘油醚(AGE)反應(yīng)制備得到了活性碳納米管。FTIR, XPS, TGA等測(cè)試表明通過(guò)氨基與環(huán)氧基的反應(yīng)可以將環(huán)氧化合物接枝到氨基化碳管的表面,從而可控的在基體樹(shù)脂與碳管間引入了不同剛性結(jié)構(gòu)的界面層。動(dòng)態(tài)接觸角測(cè)試發(fā)現(xiàn)接枝環(huán)氧化合物后,環(huán)氧樹(shù)脂與碳納米管薄膜的接觸角變小,表現(xiàn)出了更好的浸潤(rùn)性。將活性碳管添加到基體樹(shù)脂中并與T700碳纖維復(fù)合制備了單向復(fù)合材料。碳納米管/環(huán)氧樹(shù)脂復(fù)合材料的彎曲性能測(cè)試發(fā)現(xiàn),活性碳納米管對(duì)環(huán)氧樹(shù)脂的彎曲性能提升更大。在添加量為0.5%時(shí),氨基化碳管使體樹(shù)脂的強(qiáng)度和模量分別提高了10.6%和22.5%,而活性碳納米管則分別提高了22.9%和38.1%。對(duì)于T700碳纖維/環(huán)氧樹(shù)脂復(fù)合材料,加入1Wt%的活性碳納米管后,復(fù)合材料的層間剪切性能(ILSS)從79MPa最大提高到86.3MPa。
[Abstract]:Compared with traditional metal materials, fiber composites have higher strength, higher modulus and lighter mass, so they are widely used in the fields of aerospace, transportation, wind power generation and sports equipment, etc. As advanced anisotropic materials, fiber composites are widely used in the fields of aerospace, transportation, wind power generation and sports equipment. The radial properties of the fiber composites are much lower than those of the axial ones, and the mechanical properties of CNTsare excellent. The radial properties of fiber composites can be effectively improved by introducing carbon nanotubes into the matrix. However, due to the large surface tension and specific surface area of carbon nanotubes, It is easy to agglomerate in the matrix, which limits its excellent performance. In this paper, based on the amination modification of MWCNTsof multi-walled carbon nanotubes (MWCNTs), The reactive carbon nanotubes, FTIR, XPS, TGA, were prepared by the reaction of three monofunctional epoxides: Ding Ji glycidyl ether BGEN, benzyl glycidyl ether EP692) and dodecyl glycidyl ether (ages). Through the reaction of amino group with epoxy group, epoxy compound can be grafted onto the surface of amino carbon tube. Therefore, a controllable interface layer with different rigid structures was introduced between the matrix resin and the carbon tube. The dynamic contact angle test showed that the contact angle between epoxy resin and carbon nanotube film became smaller after grafting epoxy compound. The unidirectional composites were prepared by adding activated carbon tubes to matrix resin and compounding with T700 carbon fiber. The bending properties of carbon nanotubes / epoxy composites were tested. The flexural properties of activated carbon nanotubes to epoxy resin were improved even more. When the amount of active carbon nanotubes was 0.5, Aminated carbon tubes increased the strength and modulus of the resin by 10.6% and 22.5%, respectively, while activated carbon nanotubes increased by 22.9% and 38.1%, respectively. For T700 carbon fiber / epoxy composites, 1Wt% active carbon nanotubes were added. The interlaminar shear properties of the composites increased from 79MPa to 86.3 MPA.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TQ127.11;TB383.1

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本文編號(hào)：1657772