Preparation and properties of poly (p-phenylene sulfide)/multiwall carbon nanotube composites obtained by melt compounding

Yang, Jing‐hui; Xu, Tao; Lu, Ai; Zhang, Qin; Tan, Hong; Fu, Qiang

doi:10.1016/j.compscitech.2008.08.030

Cited by 103 publications

(86 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…PPS is a semi-crystalline aromatic polymer with outstanding high-temperature stability, inherent flame retardancy, good chemical resistance and excellent friction properties, widely applied in commercial and industrial fields for example automotive and aerospace engineering [20][21][22]. However, the applications of neat PPS have been somewhat limited due to relatively low glass transition temperature (~ 90°C) compared to its high melting temperature (~ 275°C) and its tendency towards brittleness.…”

Section: Introductionmentioning

confidence: 99%

“…Han et al [24] found a electrical percolation threshold at 3 wt.% of MWNTs in PPS after direct melt compounding and injection molding. Yu et al [7] founds these threshold value between 1 and 2 wt.%, and a higher percolation threshold of 5 wt.% was shown by Yang et al [22], using melt compounding and hot pressing for compounding and specimen preparation, respectively.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Morphological characterization and modelling of electrical conductivity of multi-walled carbon nanotube/poly(p-phenylene sulfide) nanocomposites obtained by twin screw extrusion

Noll

Burkhart

2011

Composites Science and Technology

View full text Add to dashboard Cite

A B S T R A C TIn this study, poly(p-phenylene sulfide) based nanocomposites containing multi-walled carbon nanotubes (MWNTs) were produced by dilution of a 15 wt.% MWNT/PPS masterbatch via twin screw extrusion process. The electrical conductivities of the nanocomposites were measured and percolation threshold was observed below 0.77 vol.% MWNTs. The state of dispersion and distribution quality of MWNTs was analyzed on macroand nanoscale through transmission light and scanning electron microscopy (SEM). A good deagglomeration of primary macroagglomerates and a homogenous MWNT distribution on nanoscale was found. The dependence of conductivity on MWNT concentration was estimated using statistical percolation theory which matches the experimental data quite well.A new empirical equation was set up to fit the electrical conductivity using quantitative values of visible percolating MWNTs which were detected by charge contrast imaging in SEM.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Morphological characterization and modelling of electrical conductivity of multi-walled carbon nanotube/poly(p-phenylene sulfide) nanocomposites obtained by twin screw extrusion

Noll

Burkhart

2011

Composites Science and Technology

View full text Add to dashboard Cite

show abstract

“…Para as amostras com 4,0 e 8,0% em massa do material nanoestruturado a redução nos valores da T g encontra-se provavelmente associada ao processo de dispersão pobre dos nanotubos na matriz PPS. Resultados similares para os valores de transição vítrea do sistema PPS/MWCNT foram apresentados por Yang e colaboradores [25] .…”

Section: Análise De Dma De Compósitos Nanoestruturados De Pps/mwcntunclassified

“…De acordo com literatura [27,28] , as interações entre as partículas de reforço em compósitos poliméricos nanoestruturados são responsáveis por um aumento da viscosidade do sistema, de modo a resultar no desaparecimento do "platô", que é característico de sistemas Newtonianos. Além disso, mudanças repentinas na viscosidade indicam que a concentração de nanoreforços [25] e Han et al [29] , determinaram, respectivamente, concentrações superiores a 2,0 m/m% e 3,0 m/m%. A partir dos dados citados acima, fica claro que o procedimento experimetal realizado e a escolha da técnica de mistura em fusão foram adequados para a obtenção dos compósitos de PPS/MWCNT, promovendo assim, a formação de uma rede tridimensional no interior da matriz polimérica em concentrações inferiores de nanoreforço.…”

Section: Análise Reológicaunclassified

Avaliação das propriedades dinâmico mecânicas e reológicas de compositos nanoestruturados de PPS/MWCNT

et al. 2017

View full text Add to dashboard Cite

ResumoNeste estudo, foram avaliadas as propriedades dinâmico mecânicas e a viscosidade de compósitos nanoestruturados de poli(sulfeto de fenileno) (PPS) reforçado com nanotubos de carbono de paredes múltiplas (MWCNT) obtidos através da técnica de mistura em fusão. O módulo de armazenamento (E') e a temperatura de transição vítrea (T g ) apresentaram aumentos de até 130% e 11 °C em relação ao PPS puro quando 2,0 m/m% do nanoreforço foi considerado. Além disso, para concentrações superiores a 1,0% em massa foi observado um aumento nos valores da viscosidade complexa (η*), o que sugere a formação de uma estrutura interconectada de nanotubos no interior da matriz polimérica. Palavras-chave: MWCNT, PPS, propriedades dinâmico mecânicas, viscosidade complexa. AbstractIn this work, dynamic mechanical properties and viscosity of multiwalled carbon nanotubes reinforced poly (phenylene sulfide) nanostructured composites obtained by melt mixing techinique were investigated. The storage modulus (E') and the glass transition temperature (T g ) showed increases up to 130% and 11 °C for concentrations of 2.0 wt% compared to neat PPS. In Addition, it was observed for concentrations above 1.0 wt% an increment of complex viscosity (η*), suggesting the formation of an interconnected nanotube structure within the polymeric matrix. Keywords: MWCNT, PPS, dynamic mechanical properties, complex viscosity. IntroduçãoA nanotecnologia pode ser definida como a ciência que descreve a criação, a manipulação e a exploração de materiais em escala nanométrica. A alta demanda para criação de materiais multifuncionais de alta qualidade vem desenvolvendo uma necessidade na comunidade cientifica em formular e preparar os chamados materiais nanoestruturados. Dentre estes, pode-se citar as nanopartículas, os nanocristais, os nanofios, as nanofitas, os nanotubos e os compósitos nanoestruturados [1,2] .Compósitos poliméricos nanoestruturados podem ser definidos por materiais híbridos orgânicos e inorgânicos, onde a fase inorgânica encontra-se dispersa em nível nanométrico em uma matriz polimérica [3] . Atualmente a busca dos nanomateriais encontra-se na descoberta de métodos de preparação, caracterização e manipulação dessas nanoestruturas para um uso específico, como no caso da nanotecnologia associada aos materiais compósitos.Diante disso, os nanotubos de carbono aparecem como um dos materiais mais promissores associados aos compósitos poliméricos.Os nanotubos de carbono vem ganhando grande destaque na comunidade científica, desde que foram descobertos por Iijima em 1991 [4] . Dentre suas mais notáveis propriedades destaca-se a elevada resistência mecânica e a excelente condutividade elétrica e térmica, fazendo deste material um potencial candidato a nanoreforço na preparação de compósitos poliméricos nanoestruturados. No entanto, um dos obstáculos para o uso em escala industrial dessas nanoestruturas está no elevado custo dos nanotubos de carbono quando comparado ao valor da matriz polimérica, ou mesmo a outros tipos de reforços. Além disso, a otimiz...

show abstract

“…Dispersed CNT reinforced composites are usually prepared by melt-mixing [62] , mixing solution [63] or in situ polymerization [64] . Also, their carbon content is generally lower than 5 wt.% and the nanotube bundles are dispersed through the matrix without forming a network.…”

Section: Cnt Buckypaper Reinforced Polymer Compositesmentioning

confidence: 99%

Carbon nanotube buckypaper reinforced polymer composites: a review

et al. 2017

View full text Add to dashboard Cite

RbstractThis review provides valuable information about the general characteristics, processing conditions and physical properties of carbon nanotube buckypaper (BP) and its polymer composites. Vacuum filtration is the most common technique used for manufacturing BP, since the carbon nanotubes are dispersed in aqueous solution with the aid of surfactant. Previous works have reported that mechanical properties of BP prepared by vacuum filtration technique are relatively weak. On the other hand, the incorporation of polymer materials in those nanostructures revealed a significant improvement in their mechanical behavior, since the impregnation between matrix and BP is optimized. Electrical conductivity of BP/polymer composites can reach values as high as 2000 S/m, which are several orders of magnitude greater than traditional CNT/polymer composites. Also, BP can improve remarkably the thermal stability of polymer matrices, opening new perspectives to use this material in fire retardant applications.

show abstract

Preparation and properties of poly (p-phenylene sulfide)/multiwall carbon nanotube composites obtained by melt compounding

Cited by 103 publications

References 33 publications

Morphological characterization and modelling of electrical conductivity of multi-walled carbon nanotube/poly(p-phenylene sulfide) nanocomposites obtained by twin screw extrusion

Morphological characterization and modelling of electrical conductivity of multi-walled carbon nanotube/poly(p-phenylene sulfide) nanocomposites obtained by twin screw extrusion

Avaliação das propriedades dinâmico mecânicas e reológicas de compositos nanoestruturados de PPS/MWCNT

Carbon nanotube buckypaper reinforced polymer composites: a review

Contact Info

Product

Resources

About