Interactions of BTESPT silane and maleic anhydride grafted polypropylene with epoxy and application to improve adhesive durability between epoxy and aluminium sheet

Chen, Ming-an; Xie, Xuan; Zhang, Xinming

doi:10.1016/j.porgcoat.2009.05.003

Cited by 28 publications

(12 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Those shifted to lower wavenumbers for the etched surface (1004 and 1076 cm −1 ) indicating an enlargement of bond lengths . Peaks at 671 and 680 cm −1 corresponded to the stretching vibrations of Al─O or to the symmetric stretching of Si─O for AD and ICP treated surfaces, respectively . The characteristic band of Si─O─Al bond was found at 907 cm −1 for the degreased surface.…”

Section: Resultsmentioning

confidence: 84%

“…The most characteristic bands of poly(γ‐GPTMS) associated to Si─O─Si and Si─O bonds were seen at 1014 and 1091 cm −1 for AD treated surface. Those shifted to lower wavenumbers for the etched surface (1004 and 1076 cm −1 ) indicating an enlargement of bond lengths . Peaks at 671 and 680 cm −1 corresponded to the stretching vibrations of Al─O or to the symmetric stretching of Si─O for AD and ICP treated surfaces, respectively .…”

Section: Resultsmentioning

confidence: 95%

“…Broad bands labeled between 300 and 3750 cm −1 in both FTIR‐ATR spectra were due to the OH stretching vibration of the adsorbed water or Al─OH and Si─OH bonds . The associated bending mode could be seen at 1610 and 1635 cm −1 for ICP and AD pretreated surface, respectively . The intensive bands were those linked to poly(γ‐GPTMS)/degreased surface, suggesting that more hydroxyl groups were present, which explain the highest static angle and the wettability of the film in question (Table ).…”

Section: Resultsmentioning

confidence: 98%

“…Hence, it seemed that the proliferation of poly(γ‐GPTMS) network was more accentuated on ICP resulting surface. Broad bands labeled between 300 and 3750 cm −1 in both FTIR‐ATR spectra were due to the OH stretching vibration of the adsorbed water or Al─OH and Si─OH bonds . The associated bending mode could be seen at 1610 and 1635 cm −1 for ICP and AD pretreated surface, respectively .…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Effect of AA2024‐T3 surface pretreatment on the physicochemical properties and the anticorrosion performance of poly(γ‐glycidoxypropyltrimethoxysilane) sol‐gel coating

Mrad

Amor

Dhouibi

et al. 2017

Surface & Interface Analysis

View full text Add to dashboard Cite

This study investigated the dependence of the anticorrosion performance of a poly(γglycidoxypropyltrimethoxysilane) (poly(γ-GPTMS)) sol-gel coating on AA2024-T3 aluminum alloy surface state. Two different AA2024-T3 surface pretreatment procedures were tested: a degreasing with acetone and a chemical multistep etching process (industrial chemical etching pretreatment). Poly(γ-GPTMS) coatings were deposited onto both pretreated surfaces using the dip-coating technique. Surfaces were characterized principally by scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared attenuated total reflectance, contact angles, and roughness measurements. Moreover, for the coated AA2024-T3 surfaces, a pull-off test was used to evaluate the poly(γ-GPTMS) adhesion to the pretreated surface. Bare surface properties depended on the applied pretreatment. The chemically etched surface was the roughest and the most concentrated in hydroxyl groups. In addition, comparatively to the degreased surface, it has a more hydrophobic character. Poly(γ-GPTMS) coating revealed an uneven nature and a poor adhesion once it was deposited onto the degreased surface. Coatings anticorrosion performances were evaluated using electrochemical impedance spectroscopy measurements (EIS). Electrochemical impedance spectroscopy data proved that the sol-gel coating applied onto the chemically etched surface had better anticorrosion performance.

show abstract

Section: Resultsmentioning

confidence: 84%

Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Effect of AA2024‐T3 surface pretreatment on the physicochemical properties and the anticorrosion performance of poly(γ‐glycidoxypropyltrimethoxysilane) sol‐gel coating

Mrad

Amor

Dhouibi

et al. 2017

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…The addition of a compatibilizer, such as MA-grafted PP (PP-g-MA), is widely used to enhance the mechanical and thermal properties. [10][11][12][13] NCC, nano-sized natural-based fibers, display good mechanical, electrical, and other physical properties and thus are used as reinforcing agents. 14,15 Cellulose crystals are reported to have a Young's modulus of 134 GPa.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and thermal characterization of grafted PP-NCC nanocomposites

Aldajah

Al-Haik

Siddique

et al. 2019

Journal of Thermoplastic Composite Materials

View full text Add to dashboard Cite

This study reveals the enhancement of mechanical and thermal properties of maleic anhydride-grafted polypropylene (PP- g-MA) with the addition of nanocrystalline cellulose (NCC). A nanocomposite was manufactured by blending various percentages of PP, MA, and NCC nanoparticles by means of a twin-screw extruder. The influence of varying the percentages of NCC on the mechanical and thermal behavior of the nanocomposite was studied by performing three-point bending, nanoindentation, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and Fourier-transform infrared (FTIR) spectroscopy tests. The novelty of this study stems on the NCC nanoparticles and their ability to enhance the mechanical and thermal properties of PP. Three-point bending and nanoindentation tests revealed improvement in the mechanical properties in terms of strength, modulus, and hardness of the PP- g-MA nanocomposites as the addition of NCC increased. SEM showed homogeneity between the mixtures which proved the presence of interfacial adhesion between the PP- g-MA incorporated with NCC nanoparticles that was confirmed by the FTIR results. DSC and TGA measurements showed that the thermal stability of the nanocomposites was not compromised due to the addition of the coupling agent and reinforced nanoparticles.

show abstract