Flammability and thermal properties of novel semi aromatic polyamide/organoclay nanocomposite

Shabanian, Meisam; Mirzakhanian, Zeinab; Basaki, Nemat; Khonakdar, Hossein Ali; Faghihi, Khalil; Hoshyargar, Faegheh; Wagenknecht, Udo

doi:10.1016/j.tca.2014.03.045

Cited by 16 publications

(7 citation statements)

References 40 publications

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“…Nanocomposites have been used commercially since the world largest car manufacturer, Toyota, introduced the first polymer/clay auto parts in the 1980s [24]. Since then, clay nanocomposites with several polymers such as polypropylene [25,26], polyamide-6 [27], polystyrene [28], poly(methyl methacrylate) [29], poly(ethylene terephthalate) [30], elastomeric polyurethane [31], and polyurethane foam [32][33][34] were explored.…”

Section: Introductionmentioning

confidence: 99%

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Adnan

Ismail

Noor

et al. 2016

Advances in Materials Science and Engineering

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This study examined the effect of organoclay montmorillonite (OMMT) on the mechanical properties and morphology of flexible polyurethane/OMMT nanocomposite (PU/OMMT) foams prepared from petroleum- and palm olein-based polyols. Palm-based PU foams exhibited inferior mechanical strength as compared to neat petroleum PU foams. However, addition of OMMT significantly improved the foams strength of flexible polyurethane/OMMT nanocomposite foams prepared from palm olein-based polyol (PU bionanocomposite foam). The morphology analysed by scanning electron microscopy (SEM) showed that the cell size of the foam decreased with increasing OMMT content. PU bionanocomposite foam with 5 wt% of OMMT had the most improved tensile (63%) and tear (48%) strengths compared to its neat counterpart. Transmission electron microscopy (TEM) revealed the exfoliated structure of the respective foam. It was concluded that OMMT improved mechanical properties and morphology of PU foams.

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Section: Introductionmentioning

confidence: 99%

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Adnan

Ismail

Noor

et al. 2016

Advances in Materials Science and Engineering

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“…In the XRD pattern of PAI, there were no any sharp reflections that indicated its amorphous structure. Generally, there are no crystalline areas in the aliphatic‐aromatic like of the PAI structure, therefore do not appear any sharp reflections in their XRD patterns . The XRD patterns of the PAI nanocomposites (Figure ) did not show any maxima reflection related to arranged crystalline structure of LDH.…”

Section: Characterization Of the Pai/ldh Nanocompositesmentioning

confidence: 93%

“…Generally, there are no crystalline areas in the aliphaticaromatic like of the PAI structure, therefore do not appear any sharp reflections in their XRD patterns. [49,50] The XRD patterns of the PAI nanocomposites (Figure 7) did not show any maxima reflection related to arranged crystalline structure of LDH. Compared to the XRD pattern of DLDH, PAI and corresponding nanocomposites indicated that the LDH layers were uniformly dispersed in the PAI matrix.…”

Section: Structural Characterization (Xrd)mentioning

confidence: 98%

Influence of imide functionalized organo‐modified Mg‐Al layered double hydroxide on the thermal and mechanical properties of new aliphatic‐aromatic poly (amide‐imide)

Hajibeygi

Shafiei-Navid

Shabanian

2018

Applied Organom Chemis

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A new dicarboxylic acid modified Mg‐Al LDH (DLDH) containing imide groups was prepared and its effects on the thermal and mechanical properties of the new synthesized aliphatic‐aromatic poly (amide‐imide) (PAI) were investigated via preparation of PAI/nanocomposite films by solution casting method. The results of X‐ray diffraction (XRD), field emission‐scanning electron microscopy (FE‐SEM) and transmission electron microscopy (TEM) showed a uniform dispersion for LDH layers into the PAI matrix. For comparison, the effects of polyacrylic acid‐co‐poly‐2‐acrylamido‐ 2‐methylpropanesulfonic acid (PAMPS‐co‐PAA) modified Mg‐Al LDH (ALDH) on the PAI properties were also studied. The thermogravimetric analysis (TGA) results exhibited that the temperature at 5 mass% loss (T5) increased from 277 °C to 310 °C for nanocomposite containing 2 mass% of DLDH, while T5 for nanocomposite containing 2 mass% of ALDH increased to 320 °C, along with the more enhancement of char residue compared to the neat PAI. According to the tensile test results, with 5 mass% DLDH loading in the PAI matrix, the tensile strength increased from 51.6 to 70.8 MPa along with an increase in Young's modulus. Also the Young's modulus of PAI nanocomposite containing 5 mass% ALDH reduced from 1.95 to 0.81 GPa.

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“…Aromatic polyamides are known as high‐performance polymers, and have been promoted for their unique advantages like excellent mechanical and high thermal stability properties, superior gas separation efficiency, and solvent and chemical resistance properties . Aromatic polyamides have been found to be useful replacements for metals or ceramics, or even as new applied materials in new technological applications . However, aromatic polyamides are usually insoluble in common organic solvents and also do not melt below their decomposition temperature due to their rigid backbones, strong interchain hydrogen bonding and strong interchain interactions …”

Section: Introductionmentioning

confidence: 99%

“…13 -16 Aromatic polyamides have been found to be useful replacements for metals or ceramics, or even as new applied materials in new technological applications. 17,18 However, aromatic polyamides are usually insoluble in common organic solvents and also do not melt below their decomposition temperature due to their rigid backbones, strong interchain hydrogen bonding and strong interchain interactions. 19 Recently many basic and applied investigations have focused on improving their processability and solubility, while retaining their prominent thermal and mechanical properties, to widen the www.soci.org M Hajibeygi, M Shabanian, HA Khonakdar range of the technological applications of aromatic polyamides.…”

Section: Introductionmentioning

confidence: 99%

Amide-acid functional SiO₂nanocomposites based on new semi-crystalline poly(ether-sulfone-amide): thermal, combustion and mechanical studies

2016

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New amide–acid functional SiO2 nanoparticle (FSNP)‐reinforced semi‐crystalline aliphatic–aromatic poly(ether‐sulfone‐amide) (PESA) was synthesized using a solution method in dimethylformamide. The surfaces of SiO2 nanoparticles were functionalized with phthalic anhydride, and subsequently PESA was synthesized using direct polymerization with good yield and desired molar mass. PESA/SiO2 nanocomposites (PSNCs) were prepared with three different contents of FSNP and the morphology and mechanical, thermal and combustion properties of the PSNCs were studied. The results of X‐ray diffraction, field‐emission scanning electron microscopy and transmission electron microscopy showed a uniform dispersion for FSNP in the PESA matrix. According to the results of mechanical tests, the tensile strength and the Young's modulus of PESA were enhanced by FSNP loading. Thermogravimetric analysis and derivative thermogravimetry results showed a substantial improvement in thermal properties of PESA. The temperature at 5% mass loss was increased from 371.7 to 395.8 °C for the PSNC containing 8 mass% of FSNP, as well as the char yield being enhanced greatly, which was about 30% higher than that of neat PESA. Significant improvements in combustion properties were observed for PSNCs from microscale combustion calorimetry. The peak heat release rate showed an obvious improvement and decreased by about 57% compared to that of neat PESA on 8 mass% loading of FSNP. © 2016 Society of Chemical Industry

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Flammability and thermal properties of novel semi aromatic polyamide/organoclay nanocomposite

Cited by 16 publications

References 40 publications

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Influence of imide functionalized organo‐modified Mg‐Al layered double hydroxide on the thermal and mechanical properties of new aliphatic‐aromatic poly (amide‐imide)

Amide-acid functional SiO₂nanocomposites based on new semi-crystalline poly(ether-sulfone-amide): thermal, combustion and mechanical studies

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Flammability and thermal properties of novel semi aromatic polyamide/organoclay nanocomposite

Cited by 16 publications

References 40 publications

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Development of Flexible Polyurethane Nanostructured Biocomposite Foams Derived from Palm Olein-Based Polyol

Influence of imide functionalized organo‐modified Mg‐Al layered double hydroxide on the thermal and mechanical properties of new aliphatic‐aromatic poly (amide‐imide)

Amide-acid functional SiO2nanocomposites based on new semi-crystalline poly(ether-sulfone-amide): thermal, combustion and mechanical studies

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Product

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Amide-acid functional SiO₂nanocomposites based on new semi-crystalline poly(ether-sulfone-amide): thermal, combustion and mechanical studies