All-Polymer Composites from Two Incompatible Polymers

Racleş, Carmen; Cristea, Mariana; Doroftei, Florica; Alexandru, Mihaela

doi:10.1080/1539445x.2012.681093

Cited by 5 publications

(2 citation statements)

References 33 publications

(21 reference statements)

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“…Polymer composites are high-performance materials that combine a flexible polymer matrix with reinforcing components (particles or fibres) with higher strength, elastic modulus and stiffness [ 4 ]; their outstanding properties are based on the synergism of both kinds of components. However, these components are mostly incompatible because their chemical and mechanical properties are quite different [ 5 , 6 ]. The typical elastic modulus is 70–80 GPa for glass fibres (GF) and 3.5–4 GPa for polyester matrix [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

The Adhesion of Plasma Nanocoatings Controls the Shear Properties of GF/Polyester Composite

et al. 2021

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High-performance fibre-reinforced polymer composites are important construction materials based not only on the specific properties of the reinforcing fibres and the flexible polymer matrix but also on the compatible properties of the composite interphase. First, oxygen-free (a-CSi:H) and oxygen-binding (a-CSiO:H) plasma nanocoatings of different mechanical and tribological properties were deposited on planar silicon dioxide substrates that closely mimic E-glass. The nanoscratch test was used to characterize the nanocoating adhesion expressed in terms of critical normal load and work of adhesion. Next, the same nanocoatings were deposited on E-glass fibres, which were used as reinforcements in the polyester composite to affect its interphase properties. The shear properties of the polymer composite were characterized by macro- and micromechanical tests, namely a short beam shear test to determine the short-beam strength and a single fibre push-out test to determine the interfacial shear strength. The results of the polymer composites showed a strong correlation between the short-beam strength and the interfacial shear strength, proving that both tests are sensitive to changes in fibre-matrix adhesion due to different surface modifications of glass fibres (GF). Finally, a strong correlation between the shear properties of the GF/polyester composite and the adhesion of the plasma nanocoating expressed through the work of adhesion was demonstrated. Thus, increasing the work of adhesion of plasma nanocoatings from 0.8 to 1.5 mJ·m−2 increased the short-beam strength from 23.1 to 45.2 MPa. The results confirmed that the work of adhesion is a more suitable parameter in characterising the level of nanocoating adhesion in comparison with the critical normal load.

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Section: Introductionmentioning

confidence: 99%

The Adhesion of Plasma Nanocoatings Controls the Shear Properties of GF/Polyester Composite

et al. 2021

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“…We previously reported composites with Udel polysulfone as the matrix and cross-linked PDMS submicron particles as the ller. 19 The cross-linking of PDMS was conducted in the presence of a surfactant, in polar medium and the resulted particles were dispersed into a polysulfone solution. All-polymer composites with PDMS as a matrix and ex situ polyaniline (PANI) nano/microparticles as a dispersed phase have been explored, especially in the context of new electroactive elastomeric materials.…”

Section: Introductionmentioning

confidence: 99%