Toughening of polypropylene with calcium carbonate particles

Zuiderduin, W.C.J.; Westzaan, C.; Huétink, J.; Gaymans, R.J.

doi:10.1016/s0032-3861(02)00769-3

Cited by 642 publications

(568 citation statements)

References 42 publications

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“…The stearic acid coating used in this study was for enhancing the dispersion of the particles and lowering the interaction with the matrix. Thus, due to debonding mechanism, the toughness of the composite was increased [166,167]. On the other hand, Levita et al believed that at high enough adhesion between the filler and the matrix, the crack will be arrested (pinned) by reaching the filler (known as crack pinning model).…”

Section: Toughnessmentioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

161

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Composite materials and especially polymer composites are widely used in daily life and different industries due to their vastly different properties and design flexibility. It is known that the properties of the composites are strongly related to the properties of its constituents. However, it has been reported in many studies, experimentally and by simulations, that the characteristics of the composites do not follow the rule of mixing. It means that in addition to properties of the constituents, there are other parameters affecting the final physicochemical properties of composites. The interfacial interactions between fillers and host is one of the factors which can strongly affect the properties of the composite. In this review, we summarized the type of interactions between the constituents, their improvement techniques, interaction measurement methods, and the effects of interfacial interactions on thermal, mechanical, and electrical properties of composites.

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Section: Toughnessmentioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

161

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“…In the polymer, filled with rigid fillers, the particles act as a stress absorber. Thus, triaxial stress around the filler particles is built up and this leads to a debonding in the particle-polymer interface 21 . If the particles are large in size, such as PP5Ti and PP10Ti, the voids that are created are unstable and act as initiation sites for the fracture process and lead to early failure of the samples.…”

Section: Mechanical Properties Of Pp Nano-composite Before Uv Radiationmentioning

confidence: 99%

Photocatalytic degradation of polypropylene/TiO2 nano-composites

et al. 2014

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In this research, we have investigated the photocatalytic degradation of carbon-coated TiO 2 nanoparticles in polypropylene-based nano-composites. For this purpose, polypropylene-based nano-composites were prepared using carbon-coated TiO 2 nanoparticles and commercially available TiO 2 nanoparticles (Degussa, P25). Our results from SEM, FTIR, and tensile tests showed that the photocatalytic property of TiO 2 causes chain scission reactions, crosslinking and consequently photocatalytic degradation of polypropylene that affects the mechanical properties of exposed nano-composites. We have observed that with greater carbon content of the TiO 2 nano-powders, there is less photocatalytic degradation.

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“…Interesting is to study whether in presence of rubber particles the pre-yield tensile set deformation is changed. New is the toughening by sub micron sized rigid particles [14][15][16][17]. The toughening mechanism here is the delamination of the rigid particles [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Pre-yield tensile set of a semi-crystalline polymer, its blend and composite

2007

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Tensile set was studied at low strains on polypropylene, aliphatic polyketone, rubber toughened blends and CaCO 3 particle toughened composites. The rubber in the rubber toughened blends had a particle size of 0.7 lm. The CaCO 3 particles had a size of 0.7 lm and had been coated with stearic acid.Step-cyclic loading was applied in 1% strain incrementals at a strain rate of 10 -2 s -1 . The maximum strain applied was 20%. The temperature of the test bar was studied with an infra-red camera. Pre-yield deformation is normally assumed to take place in a nonlinear elastic manner. However, for polypropylene and polyketone elastoplastic deformation starts at low strains. For PP the onset of tensile set is at very low strains and increases with strain. The tensile set at the yield point was only 50% and at the drawing strain 100%. Polyketone had a similar tensile set development but shifted to slightly higher strains. Here too the tensile set at the yield point was about 50% and at the drawing strain 100%. The temperature of the non yielded material was found to rise in polyketone a 7°C.The rubber toughened blends had at low strains a higher tensile set, but after the yield strain the set was similar to the base polymer. At 5% strain the tensile set increased with rubber content. The sub micron CaCO 3 particle toughened composites increased the tensile set too. The tensile set is a simple technique for studying the pre-yield behaviour of multi phase systems.

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Toughening of polypropylene with calcium carbonate particles

Cited by 642 publications

References 42 publications

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Photocatalytic degradation of polypropylene/TiO2 nano-composites

Pre-yield tensile set of a semi-crystalline polymer, its blend and composite

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