Studies on Friction and Mechanical Properties of High Density Polypropylene (HDPP) Filled with Modified Talc

Zhan, Feng; Chen, Nan Chun

doi:10.4028/www.scientific.net/amr.624.279

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…The optimal FRC prepared in this experiment showed an increase in tensile and flexural strength of 276% and 339% compared to the pure PP matrix used, with tensile and flexural strengths reaching 94 and 79 MPa, respectively. Compared to earlier studies of reinforcing phases that have been widely used to reinforce polymer composites, such as talc, [60][61][62][63][64] short-cut glass fibers, 53,[65][66][67][68][69] and carbon fibers, [70][71][72][73][74] plant fibers can be used to significantly enhance the mechanical properties of polymer materials after simple chemical treatments. Therefore, FRC prepared from plant fibers are less expensive and more environmentally friendly during processing and manufacturing.…”

Section: Comparison Of Frc With Other Pp Composites and Its Potential...mentioning

confidence: 99%

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Jin,

Huang,

Guo

et al. 2024

Polymer Composites

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A growing variety of composites utilize natural plant fibers with naturally occurring veins structured hierarchically in an effort to reduce dependence on petroleum‐based materials. In this article, ramie fibers were extracted by alkaline delignification. Then, ramie fibers and PP matrix, were prepared in filament form and an amino‐silane coupling agent KH550, and maleic anhydride grafted polypropylene were added to improve interfacial compatibility. Ramie fiber/polypropylene fiber‐reinforced polymer composites (FRC) were prepared by hot pressing after using a carding machine. This method preserves the structure and length of ramie fibers to a large extent, thus greatly improving the mechanical properties of the material. After optimization, the FRC prepared from plant fibers of 2 cm length and 60% content had a density of 0.95 g/cm3, showed an increase in tensile and flexural strength of 276% and 339%, respectively, compared to the pure PP matrix. The specific strength of the FRC in the work was higher than galore FRC prepared from talc, carbon fiber, other plant fibers, and so forth. The FRC has a wide range of potential applications due to its own low‐cost, lightweight, and high‐performance, and is highly feasible in replacing the current polymers in the preparation of numerous everyday items.Highlights The preparation method of FRC resulted in a more complete fiber length and structure. The mechanism to improve the interfacial compatibility of RF and PP is discussed. The effect of varying fiber length on the FRC mechanical properties was investigated.

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Section: Comparison Of Frc With Other Pp Composites and Its Potential...mentioning

confidence: 99%

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Jin,

Huang,

Guo

et al. 2024

Polymer Composites

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“…18, the nonpolar layers of silica tetrahedron, also called siloxane (Si-O-Si) are mostly exposed on the surface. However, the presence of Si-O-Si groups on talc surface makes it difficult to dissolve it in organic solvents [120].…”

Section: Discussionmentioning

confidence: 99%

Study of interactions between magnesium silicate particle and diamond-like carbon using atomic force microscopy

Dokmai¹

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Interaction between particles and different surfaces under ambient condition is studied using AFM-based force spectroscopy. This work focuses on the adhesion mechanism and factors affecting particle-surface adhesion. The particles of interest consist of magnesium silicate (talcum powder) and zinc oxide (ZnO) particles, which have very attractive properties and are widely used in several applications. The adhesion force measurements were first carried out using silicon/silicon coated with DLC probes pressed on talc particles modified with hydrochloric acid or different organosilanes. These modifications change hydrophobicity and hydrophilicity of the particles. The results show that the adhesion forces are distributed in a bimodal fashion. It is postulated that they originate from two types of surface of talc particles, i.e., face surface (hydrophobic character) and edge surface (hydrophilic character). The adsorption and adhesion strength are in the following trend: hydrophilic-hydrophilic > hydrophilic-hydrophobic > hydrophobic-hydrophobic. Similar bimodal distribution was also observed for ZnO particles, of which could be distinguished by controlling the shape of particles. The polar surface is obtained from the top and bottom of micron-sized ZnO powder while the nonpolar surface is obtained from the side plane of ZnO nanorods. Moreover, interaction with AFM probes that were chemically modified with different terminal functional groups was also investigated, in order to describe relationship between the adhesion interactions and adsorption mechanism. The results show the same trend as in talc particles, i.e., polar-polar interaction is stronger than polar-nonpolar interaction, and the weakest adhesion was observed from nonpolar-nonpolar interaction. However, electronic distribution and the atomic arrangement on the surface also affect the adhesion. In general, this work demonstrates that the intermolecular forces are important for the particles-surface interactions, especially van der Waals forces and hydrophobic effect.

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Reciprocating sliding wear behavior of talc-filled polypropylene: Effect of talc proportion

Teldjoun,

Mendas,

Mzali

et al. 2024

Tribology International

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Studies on Friction and Mechanical Properties of High Density Polypropylene (HDPP) Filled with Modified Talc

Cited by 3 publications

References 9 publications

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Study on the mechanical properties of ramie fiber/polypropylene composites prepared by hot pressing after the carding machine mixing

Study of interactions between magnesium silicate particle and diamond-like carbon using atomic force microscopy

Reciprocating sliding wear behavior of talc-filled polypropylene: Effect of talc proportion

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