Thermal and mechanical properties of phosphorylated multiwalled carbon nanotube/polyvinyl chloride composites

Mkhabela, Vuyiswa J.; Mishra, Ajay Kumar; Mbianda, Xavier Yangkou

doi:10.1016/j.carbon.2010.10.006

Cited by 46 publications

(33 citation statements)

References 22 publications

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“…It was also reported that the thermal conductivity for these composites relies on the relative content of the nanotubes . Mkhabela et al studied phosphorylated MWCNT (p‐MWCNT)/PVC composites and showed that there was an increase in glass transition and melting temperature for the prepared composites with respect to the PVC. No studies so far have been presented on fabrication and investigation of the PVC/SWCNT composites that were prepared by the plastisol curing method.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Zanjanijam

Bahrami

Khiadani

2014

Vinyl Additive Technology

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Composites of polyvinylchloride (PVC) with single wall carbon nanotubes (SWCNTs) were prepared by plastisol curing. Scanning electron microscopy (SEM) observations revealed that appropriate dispersion of the nanotubes was achieved. The mechanical properties showed that SWCNT improved the Young's modulus and tensile strength of the PVC. The composites have higher elongation at break and toughness as well. By comparing the mechanical properties of the composites, it is found that there is a critical SWCNT loading (about 1 wt%) below which the tensile properties increase with increasing nanofiller concentration. For the composites containing 0.25–0.75 wt% of SWCNT, this situation was observed, whereas for a sample with 1 wt% SWCNT, the mechanical properties decreased due to the agglomeration of the nanotubes. Thermogravimetric analysis indicated that the SWCNT increased T5%, T10%, T50%, Tonset, and Tmax and decreased weight loss in the degradation process of the PVC. In addition, by adding SWCNT to the polymer, residual mass at 600°C increased significantly. These results are advantages for the applications of the polymer in which high mechanical properties, including high tensile modulus and toughness, and good thermal properties are needed. J. VINYL ADDIT. TECHNOL., 22:128–133, 2016. © 2014 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Zanjanijam

Bahrami

Khiadani

2014

Vinyl Additive Technology

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“…Reinforcing fibers, such as glass and carbon, are promising for improving the mechanical behavior of composites, but their high aspect ratios and insufficient dispersibility make it difficult to obtain a uniform mixture with the composites. Additionally, blending with fillers, such as calcium carbonate, carbon nanotubes and silicon dioxide, also improves the mechanical properties of PVC composites. However, when improving one property of the composite, they may have an adverse influence on other properties.…”

Section: Introductionmentioning

confidence: 99%

“…However, when improving one property of the composite, they may have an adverse influence on other properties. For example, adding carbon nanotubes into PVC composites increased the modulus but decreased the tensile strength . Therefore, it is important to improve the overall mechanical properties of WF/PVC composites through simple methods without impairing other properties.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the flame retardancy and mechanical properties of veneered wood flour/polyvinyl chloride composites

Zong

Hao

et al. 2019

Polymer Composites

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A wood flour/polyvinyl chloride (WF/PVC) composite with poplar veneer as the surface layer (veneered WF/PVC composites) was prepared by hot pressing. To improve the flame retardancy of the veneered WF/PVC composites, a self‐developed flame retardant of wood (FRW, composed of guanylurea phosphate [GPU], boric acid and few additives) was impregnated in the poplar veneer, and zinc oxide (ZnO) was incorporated into the WF/PVC composites. Properties of the composites, including thermal decomposition, flame retardancy, interface adhension strength, impact strength and flexural properties, were investigated. Thermogravimetric analysis (TGA) showed that the FRW and ZnO accelerated the pyrolysis of the composites in the first stage and had a positive effect on thermal performance at high temperature. Cone calorimetry showed that the FRW and ZnO promoted the rapid formation of carbon and had a positive effect on the flame retardancy and smoke inhibition properties. The mechanical results showed that a strong interface adhension strength was formed between the surface poplar veneer and PVC composite board substrates. The poplar veneer significantly improved the impact and flexural properties of the WF/PVC composites.

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“…A variety of fillers including silica , calcium carbonate , carbon nanotubes , whiskers , montmorillonite and graphene , have been incorporated into PVC matrix to enhance its mechanical and thermal properties, such as toughness, modulus, and heat resistance. MHSH whisker (MgSO 4 ·5Mg(OH) 2 ·3H 2 O) is a new needle‐shaped single crystal with prefect geometrical structure, large length‐to‐diameter, low density, high intensity and strength, high‐temperature resistance and non‐toxic .…”

Section: Introductionmentioning

confidence: 99%

Surface modification of magnesium hydroxide sulfate hydrate whiskers and its toughness and reinforcement for polyvinyl chloride

et al. 2017

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In order to enhance the adhesion and compatibility of magnesium hydroxide sulfate hydrate (MHSH) whiskers with polyvinyl chloride (PVC), and prepare high performance MHSH/PVC composites, chitosan (CS) is coated on the surface of MHSH whiskers by a facile method. The effect of the CS‐coated MHSH (CS‐MHSH) whisker and its toughness and reinforcement for PVC are studied. A thin layer coated on the surface of MHSH whiskers after modification is investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The efficacy of surface modification is confirmed by fourier transform infrared spectroscopy (FTIR), X‐ray power diffraction analyses (XRD) and energy disperse spectroscopy (EDS). The optimum modification concentration of CS is 0.025%. The notched impact strength and flexural modulus of PVC composite with 15 phr CS‐MHSH whiskers are increased by 85.5% and 58.5% compared with those of pure PVC, and by 48.3% and 4.1% compared with those of the PVC composite with 15 phr unmodified MHSH whiskers. A better thermal stability of CS‐MHSH/PVC composite is showed by thermogravimetric analysis (TGA). Dynamic mechanical analysis (DMA) result indicates that CS‐MHSH whiskers have a better dispersion and a stronger interfacial adhesion with PVC matrix. POLYM. COMPOS., 39:3676–3685, 2018. © 2017 Society of Plastics Engineers

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Thermal and mechanical properties of phosphorylated multiwalled carbon nanotube/polyvinyl chloride composites

Cited by 46 publications

References 22 publications

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Poly(vinyl chloride)/single wall carbon nanotubes composites: Investigation of mechanical and thermal characteristics

Enhancing the flame retardancy and mechanical properties of veneered wood flour/polyvinyl chloride composites

Surface modification of magnesium hydroxide sulfate hydrate whiskers and its toughness and reinforcement for polyvinyl chloride

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