Influence of the diameter of CaCO3 particles on the mechanical and rheological properties of PVC composites

Zeng, Xiao Fei; Wang, W. Y.; Wang, G. Q.; Chen, J. F.

doi:10.1007/s10853-008-2475-7

Cited by 35 publications

(29 citation statements)

References 12 publications

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“…4,5 Thus, attempts have been made to impart required properties (e.g., toughness, modulus and heat resistance) to the PVC materials by incorporating various llers into the PVC matrix. [6][7][8] Various llers, such as organic elastomers [9][10][11][12] and reinforcing agents, 6 as well as inorganic natural bers, 13,14 whiskers 15-17 and nanoparticles [18][19][20][21][22] have been shown to be capable of improving the comprehensive performance of PVC composites. Calcium sulfate whiskers (CSWs) as a reinforcing ller can dramatically improve the impact resistance, modulus and thermal resistance of PVC composites, 17,23 as they have integrated shape, high intensity, high-temperature resistance and high tenacity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Zhang

et al. 2017

RSC Adv.

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Six new polyether titanate coupling agents with different polyethyleneglycol (PEG) segment lengths were prepared in this study and were then used to modify calcium sulfate whiskers (CSWs) in order to improve the compatibility between CSWs and poly(vinyl chloride) (PVC). The chemical structure of these coupling agents was characterized by FTIR, Raman, 1 H NMR and 31 P NMR, and the surface properties of CSWs modified by the coupling agents (mCSWs) were characterized by FTIR, SEM-EDS and XPS. Then, CSW/ PVC and mCSW/PVC composites were prepared using a two-roll mill, and their mechanical and thermal properties were characterized to investigate the effects of the PEG segment length of the coupling agents on the performance and compatibility of the composites. The results show that the new coupling agents can significantly improve the compatibility and the interfacial adhesion between CSWs and the PVC matrix, which results in a significant improvement of the comprehensive performance of mCSW/ PVC composites. PEG4000 shows the best modification effect on CSWs. Finally, the underlying mechanisms are discussed.

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Section: Introductionmentioning

confidence: 99%

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Zhang

et al. 2017

RSC Adv.

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“…Nanoscale calcium carbonate (nano‐CaCO 3 ) is one of the most common spherical nanoscale fillers being used to prepare nanocomposites [6]. The CaCO3 has attracted more attention because it eliminates HCl gas that is found during the thermal degradation of PVC [7].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the addition of nano‐CaCo₃ at dry mixing or onset of fusion on the dispersion, torque, and mechanical properties of compounded PVC

Jazi

Esfahany

Bagheri

2012

Vinyl Additive Technology

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A Brabender torque rheometer equipped with an internal mixer was used to study the influence of compounding method on the properties of (rigid PVC)/(treated and untreated nano‐CaCO3) nanocomposites. Two different methods were studied for the addition of surface treated and untreated nano‐CaCO3 during the melt mixing of rigid PVC. Direct dry mixing of rigid PVC and nano‐CaCO3, and addition of nano‐CaCO3 at the onset of PVC fusion were investigated. Dispersion of treated and untreated nano‐CaCO3 was studied by X‐ray diffraction and scanning electron microscopy. Results showed that using direct dry mixing improved the dispersion of nano‐CaCO3 in the PVC matrix by lowering the fusion time. The mechanical properties of the nanocomposite samples such as impact strength, tensile strength, and elongation at break were improved by using this method. The addition of treated nano‐CaCO3 at the onset of fusion caused a simultaneous decrease in torque. Also, rigid PVC nanocomposites prepared with treated nano‐CaCO3 showed better mechanical properties than those of nanocomposites prepared with the untreated nano‐CaCO3. J. VINYL ADDIT. TECHNOL., 18:153–160, 2012. © 2012 Society of Plastics Engineers

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“…One key advantage of using nanoparticles in polymer matrix is that nanoparticles have a very large surface area, which affects the particle-polymer interactions, leading to significant changes in the mechanical properties of the polymer nanocomposites [1][2][3]. As one of most important nanoparticles, CaCO 3 nanoparticles have been widely studied and utilized in academic and industry society because of its commercial availability and the substantial improvement of mechanical properties of polymers [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of coverage-controlled CaCO3 nanoparticles

Zhao

Lau

et al. 2010

Journal of Colloid and Interface Science

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Influence of the diameter of CaCO3 particles on the mechanical and rheological properties of PVC composites

Cited by 35 publications

References 12 publications

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Investigation of the addition of nano‐CaCo₃ at dry mixing or onset of fusion on the dispersion, torque, and mechanical properties of compounded PVC

Preparation and characterization of coverage-controlled CaCO3 nanoparticles

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Influence of the diameter of CaCO3 particles on the mechanical and rheological properties of PVC composites

Cited by 35 publications

References 12 publications

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Synthesis of new polyether titanate coupling agents with different polyethyleneglycol segment lengths and their compatibilization in calcium sulfate whisker/poly(vinyl chloride) composites

Investigation of the addition of nano‐CaCo3 at dry mixing or onset of fusion on the dispersion, torque, and mechanical properties of compounded PVC

Preparation and characterization of coverage-controlled CaCO3 nanoparticles

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Investigation of the addition of nano‐CaCo₃ at dry mixing or onset of fusion on the dispersion, torque, and mechanical properties of compounded PVC