The effect of interfacial interaction contribution to the mechanical properties of automotive topcoats

Hosseinpour, Dariush; Guthrie, James T.; Berg, John C.; Stolarski, Victoria.L.

doi:10.1016/j.porgcoat.2005.06.008

Cited by 18 publications

(6 citation statements)

References 18 publications

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Section: Introductionmentioning

confidence: 99%

“…Nevertheless, some recent works showed that the organophilic surface treatment of BA particles can improve their dispersion via controlled interfacial adhesion between BA and PP. 23,31,32 Although few reports are available in the literature examining the mechanical and structural properties of PP-BA nanocomposites, 23 no reports are available to our knowledge on a detailed investigation and comparison of untreated and surface-treated BA nanoparticles addition to PP matrices. Moreover, the study of material toughness of PP nanocomposites by applying the essential work of fracture (EWF) method still needs to be ascertained.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical and rheological response of polypropylene/boehmite nanocomposites

Pedrazzoli

Tuba

Khumalo

et al. 2013

Journal of Reinforced Plastics and Composites

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In this work the influence of synthetic boehmite alumina (BA) nanoparticles with various surface treatments on the morphology, crystallization behavior and mechanical properties of polypropylene copolymer (PP) nanocomposites was studied. In particular, a series of PP/BA nanocomposites, containing up to 10 wt% of untreated and of octylsilane-functionalized BA nanoparticles, were prepared by melt compounding and film blowing. A third type of composites was produced by incorporation of BA nanoparticles treated with benzene-sulfonic-acid.Scanning electron microscopy indicated that BA nanoparticles were finely and uniformly dispersed, though agglomerated, in the PP nanocomposites. Surface treated BA nanoparticles were better dispersed in the matrix than the untreated BA nanocomposites. The melt viscosity of nanocomposites remained unaltered or decreased by nanofiller incorporation at low contents (2.5 and 5 wt%), while it slightly increased at higher contents (10 wt%).Uniaxial tensile tests indicated that the nanoparticles can induce a remarkable stiffening effect even at a rather low filler content, especially in the case of surface treated particles. The plane stress fracture toughness of the material, evaluated by the essential work of fracture approach, showed a noticeable improvement due to BA incorporation, with an optimal effect for a filler concentration of about 2.5 wt%.4

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical and rheological response of polypropylene/boehmite nanocomposites

Pedrazzoli

Tuba

Khumalo

et al. 2013

Journal of Reinforced Plastics and Composites

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“…Consequently, the inorganic nanoparticles may achieve better dispersibility and compatibility in the polymer matrix. In recent years, the surface modification of SiO 2 particles has attracted much interest, and great efforts have been made in this field [15][16][17][18][19][20][21][22][23]. Among the surface modification methods of nano-SiO 2 particles, modification by coupling agents is by far the most frequently used technique.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Transparent and Flexible Films of Thermoplastic Polyurethanes Incorporated by Nano-SiO₂Modified With 4,4′-Methylene Diphenyl Diisocyanate

Behniafar

Azadeh

2014

International Journal of Polymeric Materials and Polymeric Biom

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4,4'-Methylene diphenyl diisocyanate (MDI) played a dual role for preparing thermoplastic polyurethanes (TPU)/silica nanocomposites; both as monomer to synthesize MDI-capped poly(tetramethylene oxide) (PTMO) and as surface modifier of nano-SiO 2 particles. Untreated and/or MDI-treated SiO 2 were homogeneously incorporated into the resulting TPU polymer after extension of the chains by 1,4-butanediol (BDO). To modify silica nanoparticles, MDI was grafted to the surface silanol groups of the nanoparticles by forming urethane links. MDI-treated SiO 2 (SiO 2 -MDI) nanoparticles, as well as TPU/untreated SiO 2 (TPU/SiO 2 ) and TPU/MDI-treated SiO 2 (TPU/SiO 2 -MDI) nanocomposites were characterized by FT-IR, UV/vis DRS, XRD, SEM, mechanical, and thermal analyses.

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“…The procedure adopted, coupled with the associated topic, was that described by Hosseinpour and by Hosseinpour et al 22,23 Eight different coating samples were prepared whereby the three slip agents were used individually and in combination, in the epoxy-phenolic coating formulation. These were cured as described earlier.…”

Section: Abrasion Studiesmentioning

confidence: 99%

The effect of slip agents on the characteristics and properties of epoxy-phenolic can coatings

Jiang

Oldring²,

Castle³

et al. 2008

J Coat Technol Res

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The migration issues associated with the transfer of chemicals from epoxy-based can coatings into foodstuffs have been studied in recent years. Slip agents are usually used in can coatings for ease of manufacture and to provide required physical resistance properties. Slip agents in epoxy-based can coatings are suspected of not only performing as lubricants but also having effects on the other properties of coatings, including their migration resistance. This article contains information relating to the evaluation of the influence of selected slip agents on the characteristics and properties of specific epoxy-phenolic can coatings. These characteristics and properties include those thermal properties of the coatings that relate to curing characteristics, the surface appearance of cured coating films, the wetting properties that may be associated with migration issues, and the abrasion properties of the cured epoxy-phenolic systems. It was found that three selected slip agents each affected the properties of the specific epoxy-phenolic can coating differently. One of three selected slip agents in particular reduced the interaction (''wettability'') of the specific coatings by test fluids and so may help to reduce chemical migration.

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The effect of interfacial interaction contribution to the mechanical properties of automotive topcoats

Cited by 18 publications

References 18 publications

Mechanical and rheological response of polypropylene/boehmite nanocomposites

Mechanical and rheological response of polypropylene/boehmite nanocomposites

Transparent and Flexible Films of Thermoplastic Polyurethanes Incorporated by Nano-SiO₂Modified With 4,4′-Methylene Diphenyl Diisocyanate

The effect of slip agents on the characteristics and properties of epoxy-phenolic can coatings

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The effect of interfacial interaction contribution to the mechanical properties of automotive topcoats

Cited by 18 publications

References 18 publications

Mechanical and rheological response of polypropylene/boehmite nanocomposites

Mechanical and rheological response of polypropylene/boehmite nanocomposites

Transparent and Flexible Films of Thermoplastic Polyurethanes Incorporated by Nano-SiO2Modified With 4,4′-Methylene Diphenyl Diisocyanate

The effect of slip agents on the characteristics and properties of epoxy-phenolic can coatings

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Product

Resources

About

Transparent and Flexible Films of Thermoplastic Polyurethanes Incorporated by Nano-SiO₂Modified With 4,4′-Methylene Diphenyl Diisocyanate