石墨片对环氧树脂的热学、力学和电学性能影响

Subhra Gantayat; Gyanaranjan Prusty; Dibya Ranjan Rout; Sarat K Swain

doi:10.1016/S1872-5805(15)60200-1

石墨片对环氧树脂的热学、力学和电学性能影响

doi: 10.1016/S1872-5805(15)60200-1

1.
Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India;
2.
School of Applied Science(Physics), KIIT University, Bhubaneswar 751024, India

详细信息

通讯作者:
Sarat K Swain.E-mail:swainsk2@yahoo.co.in

中图分类号: TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2015-03-05
- 录用日期: 2015-11-10
- 修回日期: 2015-10-08
- 刊出日期: 2015-10-28

Expanded graphite as a filler for epoxy matrix composites to improve their thermal, mechanical and electrical properties

1.
Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Sambalpur 768018, India;
2.
School of Applied Science(Physics), KIIT University, Bhubaneswar 751024, India

摘要

摘要: 采用溶液技术制备出膨胀石墨增强环氧树脂复合材料。对石墨进行化学改性以提高与环氧树脂的相容性。采用XRD、FE-SEM和HR-TEM对环氧树脂/膨胀石墨复合材料进行表征。与环氧树脂相比,添加质量分数9%膨胀石墨后,该复合材料的热分解温度从340℃升高至480℃,抗张应力提高30%,导电率由10^-15增加至10^-5数量级。热学、力学和电学性能的显著提高,主要归因于膨胀石墨纳米片在环氧树脂基体中的良好分散性,从而可用于广泛的应用领域。
- 膨胀石墨 /
- 扫描电镜 /
- 透射电镜 /
- 导电率
Abstract: Expanded graphite (EG)-reinforced epoxy composites were prepared by a solution mixing method. The structure and morphology of the EG/epoxy composites were investigated by XRD, FE-SEM and HR-TEM. The EG prepared by acid oxidation and thermal expansion shows good compatibility with the epoxy resin that enters the EG layers to decrease their thickness to 60-70 nm, owing to its abundant oxygen-containing functional groups. With the addition of 9 wt% EG, the thermal decomposition temperature of the composite increases from 340 to 480℃, the electrical conductivity from 10-15 to 10-5 S/cm and the tensile stress is increased by more than 30%. These improvements are attributed to the good dispersion of EG sheets in the epoxy matrix.
- Expanded graphite /
- FE-SEM /
- HR-TEM /
- Conductivity

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参考文献(27)

Swain S K, Isayev A I. PA6/clay nano-composites by continuous sonication process[J]. Appl Polym Sci, 2009, 114:2378-2387.

Sahoo P K, Samal R, Swain S K, et al. Synthesis of poly(butyl acrylate)/sodium silicate nanocomposite fire retardant[J]. Eur Polym J, 2008, 44:3522-3528.

Lapshine S, Swain S K, Isayev A I. Ultrasound aided extrusion process for preparation of polyolefin-clay nanocomposites[J]. Polym Eng Sci, 2008, 48:1584-1591.

Swain S K, Isayev A I. Effect of ultrasound on HDPE/clay nanocomposites:Rheology, structure and properties[J]. Polymer, 2007, 48:281-289.

Prusty G, Swain S K. Synthesis and characterization of conducting gas barrier polyacrylonitrile/graphite nanocomposites[J]. Polym Compos, 2011, 32:1336-1342.

Prusty G, Swain S K. Dispersion of expanded graphite as nanoplatelets in a copolymer matrix and its effect on thermal stability, electrical conductivity and permeability[J]. New Carbon Materials, 2012, 27:271-277.(Prusty G, Swain S K.纳米石墨片/共聚物复合材料及其耐热、导电和气密性[J]. 新型炭材料, 2012, 27:271-277.)

Ishigure Y, Iijima S, Ito H, et al. Electrical and elastic properties of conductor-polymer composites[J]. J Mater Sci, 1999, 34:2979-2985.

Pinto G, Martin A J. Conducting aluminium-filled nylon 6 composites[J]. Polym Compos, 2001, 22:65-70.

Roldughin V I, Vysotskii V V. Percolation properties of metal filled polymer films, structure and mechanisms of conductivity[J]. Prog Org Coat, 2000, 39:81-100.

Gabriel P, Cipriano L G, Ana J M. Polymer composites prepared by compression molding of a mixture of carbon black and nylon 6 powder[J]. Polym Comp, 1999, 20:804-808.

Du F, Scogna R C, Zhou W, et al. Nanotube networks in polymer nanocomposites:Rheology and electrical conductivity[J]. Macromolecules, 2004, 37:9048-9055.

EI-Tantawy F, Abdel-Aal N, Al-Hajry A, et al. New antistatic charge and electromagnetic shielding effectiveness from conductive epoxy resin/plasticized carbon black composites[J]. Polym Compos, 2008, 29:125-132.

EI-Tantawy F. Plasticized/graphite reinforced phenolic resin composites and their application potential[J]. J Appl Polym Sci, 2007, 104:697-709.

EI-Tantawy F. Development of novel functional conducting elastomer blends containing butyl rubber and low-density polyethylene for current switching, temperature sensor, and EMI shielding effectiveness applications[J]. J Appl Polym Sci, 2005, 97:1125-1138.

Chen G, Weng W, Wu D, et al. Preparation and characterization of graphite nanosheets from ultrasonic powdering technique[J]. Carbon, 2004, 42:753-759.

Chen G, Weng W, Wu D C. PMMA/graphite nanosheets composite and its conducting properties[J]. Eur Polym J, 2003, 39:2329-2335.

Mamunya E P, Davidenko V V, Lebedev E V. Effect of polymer-filler interface interactions on percolation conductivity of thermoplastics filled with carbon black[J]. Compos Inter, 1996, 4:169-176.

Chen G H, Wu D J, Weng W G, et al. Preparation of polystyrene-graphite conducting nanocomposites via intercalation polymerization[J]. Polym Int, 2001, 50:980-985.

Kim I H, Jeong Y G. Polylactide/exfoliated graphite nanocomposites with enhanced thermal stability, mechanical modulus, and electrical conductivity[J]. J Polym Sci:Part B Phys, 2010, 48:850-858.

Xiao M, Sun L, Liu J, et al. Synthesis and properties of polystyrene/graphite nanocomposites[J]. Polymer, 2002, 43:2245-2248.

Aiping Yu, Palanisamy R, Mikhail E I, et al. Graphite nanoplatelet-epoxy composite thermal interface materials[J]. The Journal of Physical Chemistry C, 2007, 111:7565-7569.

Swain S K, Prusty G, Ray A S, et al. Dispersion of nanoplatelets of graphite on PMMA matrix by in situ polymerisation technique[J]. Journal of Experimental Nanoscience, 2014, 9:240-248.

Kisku S K, Swain S K. Synthesis and characterization of chitosan/boron nitride composite[J]. Journal of the American Ceramic Society, 2012, 95:2753-2757.

Prusty G, Das R, Swain S K. Influence of functionalized single-walled carbon nanotubes on morphology, conducting and oxygen barrier properties of poly(acrylonitrile-co-starch)[J]. Composites:Part B, 2014, 62:236-241.

Xiao P, Xiao M, Gong K. Preparation of exfoliated graphite/polystyrene composite by polymerization-filling technique[J]. Polymer, 2001, 42:4813-4816.

Prusty G, Swain S K.Dispersion of ZrO₂ nanoparticles in polyacrylonitrile:Preparation of thermally-resistant electrically-conductive oxygen barrier nanocomposites[J]. Material Science in Semiconductor Processing, 2013, 16:2039-2043.

Ma P C, Siddiqui N A, Marom G, et al. Dispersion and functionalization of carbon nanotubes for polymer-based nanocomposites:A review[J]. Composites:Part A, 2010, 41:1345-1367.

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