本文選題：氧化石墨烯　切入點：有機磷酸鋯　出處：《西南大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：在聚合物復(fù)合材料領(lǐng)域,聚合物/納米粒子復(fù)合材料得到廣泛關(guān)注。通過向聚合物中加入納米粒子可以提高聚合物的界面作用力,從而提高聚合物的力學(xué)性能和穩(wěn)定性能,且這些復(fù)合材料還可以應(yīng)用于阻燃、催化和傳感器等領(lǐng)域。但是聚合物/納米粒子復(fù)合材料中填料和基質(zhì)之間的不相容性會降低材料的性質(zhì)。為了提高納米粒子在基質(zhì)中的分散性,可以在納米粒子進行表面功能化處理。基于此,我們在氧化石墨烯表面進行改性制備了一系列含有特殊功能官能團的氧化石墨烯衍生物來提高聚合物的綜合性能。首先,制備了一系列海藻酸鈉/氧化石墨烯(SA/GO-n)和海藻酸鈉/改性氧化石墨烯(SA/MGO-n)生物復(fù)合膜。我們通過比較GO和MGO對SA性能的影響來研究填料和基質(zhì)之間的界面作用力。通過傅里葉紅外(FTIR)、原子力顯微鏡(AFM)、透射電鏡(TEM)、X-射線衍射(XRD)、掃描電鏡(SEM)、熱重分析(TGA)、紫外(UV-vis)和力學(xué)性能分析來研究生物復(fù)合膜的結(jié)構(gòu)、形貌和性質(zhì)。結(jié)果表明GO (MGO)與SA之間存在較強的相互作用力。與SA相比,SA/MGO生物復(fù)合膜最大楊氏模量、拉伸強度、斷裂伸長率分別提高了37.8%、68.4%、44.9%,然而SA/GO生物復(fù)合膜卻只提高了19.6%、44%、36.5%。其次,成功制備了一類氧化石墨烯有機磷酸鋯異質(zhì)耦合阻燃劑氧化石墨烯-2-(2-(2-氨乙基氨)乙基氨)乙基膦酸鋯(GO-Zr(AE)3P, GO-Zr[O3P(CH2)2NH(CH2)2NH(CH2)2NH2]2·H2O,并合成了一系列的PP/Zr(AE)3P和PP/GO-Zr(AE)3P納米復(fù)合材料。通過紅外分析(FTIR)、透射電鏡(TEM)、熱重分析(TGA)、X-射線衍射(XRD)、掃描電鏡(SEM)、力學(xué)性能測試和垂直燃燒測試研究了填料及復(fù)合材料的結(jié)構(gòu)、穩(wěn)定性能、力學(xué)性能、阻燃性能及炭灰形貌。結(jié)果表明氧化石墨烯有機磷酸鋯異質(zhì)耦合阻燃劑是一種優(yōu)異的阻燃劑,對PP阻燃效率高。最后,成功制備了一種新型氧化石墨烯有機磷酸鋯異質(zhì)耦合阻燃劑—氧化石墨烯-2-(2-(2-氨乙基氨)乙基氨)乙基膦酸鋯(GO-Zr(AE)3P, GO-Zr[O3P(CH2)2NH(CH2)2NH(CH2)2NH2]2、氧化石墨烯-1,3,5-三嗪-2,4-二胺-6-仲胺乙基膦酸鋯(GO-ZrMelP,GO-Zr[O3P(CH2)2NHC3N3(NH2)2]2、氧化石墨烯-對苯甲酸-N,N-二甲基膦酸鋯(GO-ZrBMP,GO-Zr[O3PCH2)2NCH2C6H4COOH)]2并合成了一系列的PP/GO-Zr(AE)3P、PP/GO-ZrMelP、PP/GOZrBMP納米復(fù)合材料。通過紅外分析(FTIR)、透射電鏡(TEM)、熱重分析(TGA)、X-射線衍射(XRD)、掃描電鏡(SEM)、力學(xué)性能測試和垂直燃燒測試研究了填料及復(fù)合材料的結(jié)構(gòu)、穩(wěn)定性能、力學(xué)性能、阻燃性能及炭灰形貌。
[Abstract]:In the field of polymer composites, polymer / nanoparticle composites have attracted wide attention. By adding nanoparticles to polymers, the interfacial forces of polymers can be improved, thus the mechanical properties and stability of polymers can be improved. And these composites can also be used as flame retardants, However, the incompatibility between fillers and substrates in polymer / nanoparticles composites reduces the properties of the materials. In order to improve the dispersion of nanoparticles in the matrix, Based on this, a series of graphene oxide derivatives with special functional groups were prepared on the surface of graphene oxide to improve the comprehensive properties of polymers. A series of sodium alginate / graphene oxide (SA / GO-n) and sodium alginate / modified graphene oxide (SA / MGO-n) biological composite membranes were prepared. The interfacial forces between filler and matrix were studied by comparing the effects of go and MGO on the properties of SA. The structure of the biofilm was studied by FTIR, AFM, TEM, SEM, TGA, UV-vis) and mechanical properties analysis. Compared with SA, the maximum Young's modulus, tensile strength and elongation at break of the SA-MGO biomembrane were increased by 37.8%, 68.4% and 44.9%, respectively. However, the SA/GO biofilm only increased 19.64436.55.In addition, the maximum Young's modulus, tensile strength and elongation at break of the SA-MGO composite membrane were increased only by 19.64436.5.The maximum Young's modulus, tensile strength and elongation at break of the SA-MGO composite membrane were increased by 37.8% and 68.4%, respectively. A class of graphene oxide zirconium phosphate heterogenous flame retardants, graphene oxide-2-(2-(2 -) 2-(aminoethyl) ethylamino)-ethyl phosphonate) zirconium oxide (GO-ZrAe) 3P, GO-Zr [O3PCH2 (2) NHCH2 + 2 (NH2 +) CH2] 2 路H2O have been successfully prepared. A series of PP/Zr(AE)3P and PP/GO-Zr(AE)3P nanocomposites have been synthesized by infrared analysis. FTIR, TEM, TGA, XRD, SEM, mechanical properties and vertical combustion tests, the structure of fillers and composite materials were studied by means of thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), mechanical properties test and vertical combustion test. Stability, mechanical properties, flame retardancy and morphology of carbon ash. The results show that graphene oxide organozirconium phosphate heterogenous flame retardant is an excellent flame retardant and has high flame retardant efficiency to PP. A novel heterogeneous flame retardant of graphene organophosphate zirconium oxide, graphene oxide, was successfully prepared. The ethylphosphonate zirconium (GO-ZrAe) ethylaminoethyl phosphonate (GO-ZrAe) 3P, GO-Zr [O _ 3P _ (Ch _ 2H _ 2H _ 2H _ 2H _ 2o _ 2H _ 2H _ 2O _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2H _ 2O _ 2), graphene oxide _ 3H _ 3H _ 3H _ 2H _ 2H _ 2H _ 2O _ 2H _ 2O _ 2O _ 3H _ 3H _ 2H _ 2H _ 2O _ 2) were prepared. A series of PP- / GO-ZrAEN / GO-ZrBMP nanocomposites were synthesized by GO-ZrBMPP [O _ 3PCH _ 2o _ 2NCH _ 2C _ 6H _ 4COOH] _ 2 and a series of PP- / GO-Zr-AEO _ 3PN / GO-Zr _ MelPP-P / GOZrBMP nanocomposites were synthesized by FTIR, TEM, TGA, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM, SEM and SEM. The structure of fillers and composites was studied by burning test. Stability, mechanical properties, flame retardancy and carbon ash morphology.
【學(xué)位授予單位】：西南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TB33

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本文編號：1575089