Synergic Effect of TiO2 Filler on the Mechanical Properties of Polymer Nanocomposites

Abstract

Nanocomposites with polymer matrix offer excellent opportunities to explore new functionalities beyond those of conventional materials. TiO2, as a reinforcement agent in polymeric nanocomposites, is a viable strategy that significantly enhanced their mechanical properties. The size of the filler plays an essential role in determining the mechanical properties of the nanocomposite. A defining feature of polymer nanocomposites is that the small size of the fillers leads to an increase in the interfacial area compared to traditional composites. The interfacial area generates a significant volume fraction of interfacial polymer, with properties different from the bulk polymer even at low loadings of the nanofiller. This review aims to provide specific guidelines on the correlations between the structures of TiO2 nanocomposites with polymeric matrix and their mechanical properties. The correlations will be established and explained based on interfaces realized between the polymer matrix and inorganic filler. The paper focuses on the influence of the composition parameters (type of polymeric matrix, TiO2 filler with surface modified/unmodified, additives) and technological parameters (processing methods, temperature, time, pressure) on the mechanical strength of TiO2 nanocomposites with the polymeric matrix.

Tough and self-healing hydrogels based on transient crosslinking by nanoparticles

“…The addition of nanoparticles into the polymer matrix could significantly enhance the mechanical properties. 1–11 Long et al proposed that polymer chains can form binding layers around nanoparticles, which are like carbon-reinforced rubber. 12,13 An alternative explanation proposed by Goritz and Sternstein was that polymer chains can form a “bridge” between nanoparticles, allowing the formation of a percolation network in the system.…”

Non-Isothermal Crystallization of Titanium-Dioxide-Incorporated Rice Straw Fiber/Poly(butylene succinate) Biocomposites

“…Several types of reinforcement and fillers, such as talcum powder [ 25 ], hydroxyapatite [ 26 ], magnesium hydroxide sulfate whiskers [ 27 ], and silicon nitride [ 28 ] can act as heterogeneous nucleating agents to improve the thermal, crystallographic, and mechanical properties. Among the many fillers, titanium dioxide (TiO 2 ) nanopowder is increasingly investigated because it is non-toxic, chemically inert, low cost, corrosion-resistant, and has a high hardness [ 29 ].…”

Novel cardo‐type heat‐resistant polyimides bearing 9H‐xanthene and polymer‐based nanocomposite consisting of NH2‐terminated TiO2: Synthetic strategies, extraction of methylene blue dye, and biological activities

“…[5][6][7][8] Among various NPs, titanium oxide (TiO 2 ) has gained a great deal of importance because of its physical and chemical stability, hydrophilic surface, facile preparation, economic feasibility, self-cleaning feature, and accessibility. 9,10 In the recent years, the use of a combination of hyperbranched polymers (HBPs) and nanofillers containing organic-inorganic conjugates has become a noteworthy field to prevent the agglomeration of nanomaterials and to enhance their surface affinity for organic solvent. 11,12 In NPs grafted with HBPs, polymeric chains are held together by direct discrete supramolecular linking sites to improve properties of relevant compound.…”

“…The emerged composites through a combination of both two phases not only keep intrinsic attributes but also often exhibit more heat‐resistance, higher processability, and even interesting advancements caused by interaction of matrix‐nanoparticle 5–8 . Among various NPs, titanium oxide (TiO 2 ) has gained a great deal of importance because of its physical and chemical stability, hydrophilic surface, facile preparation, economic feasibility, self‐cleaning feature, and accessibility 9,10 …”