Effects of nano‐TiO₂ on the structure and properties of composite materials constructed from eggshell powder/poly(butyleneadipate‐co‐terephthalate)

Abstract

In the present work, the effects of nano-TiO 2 on the properties and structure of eggshell powder/poly(butyleneadipate-co-terephthalate) (PBAT) composites were comprehensively explored. The results showed that nano-TiO 2 could promote the tensile strength and water resistance of the composite material, as well as reduce the light transmittance. Nano-TiO 2 reacted with PBAT to form the C-O-Ti bonds, resulted in enhanced structure stability of the composite material. Nano-TiO 2 served as the nanoscale filler to improve the internal compatibility of the composites through hydrogen bonds. Besides, the crystallization performance of the polymer system was also altered by nano-TiO 2 incorporation. These changes in structure promoted the thermal stability and surface hydrophobicity. Finally, the antibacterial test was performed, and the nanocomposite material containing nano-TiO 2 exhibited excellent antibacterial properties. This research provides a novel strategy for constructing an eggshell powder/PBAT/nano-TiO 2 nanocomposite biodegradable plastic that could be used for the development of antibacterial materials.

Glufosinate Ammonium-Loaded Halloysite Nanotubes for Slow-Release Weeding Polymer Mulch Films

“…It can be seen from the test data that the light transmittance of the PP film is 78.2%. After inorganic fillers are added, the light transmittance slightly is reduced by 1%–2%, and the haze increases by 1%–5%, which is due to the different refractive indices of the two parts . As far as we know, light transmittance greater than 75% will neither affect crop growth nor weed growth.…”

“…After inorganic fillers are added, the light transmittance slightly is reduced by 1%−2%, and the haze increases by 1%−5%, which is due to the different refractive indices of the two parts. 50 As far as we know, light transmittance greater than 75% will neither affect crop growth nor weed growth. Therefore, the main cause of weed blight is herbicides released from the composite films.…”

Preparation and Performance of Biodegradable Poly(butylene adipate-co-terephthalate) Composites Reinforced with Novel AgSnO2 Microparticles for Application in Food Packaging

“…These results suggest that AgSnO 2 was present in ACP-3.0 and ACP-5.0 and had a significant impact on their ability to biodegrade. Furthermore, this behavior was observed in the PBAT composites that contained fillers, such as lignin [ 44 , 45 ], starch [ 46 , 47 , 48 ], cellulose fiber [ 49 ], crystals [ 50 ], CaCO 3 [ 51 , 52 ], and eggshell powder [ 53 ].…”

Toward the production of biopolyethylene‐based ecocomposites with improved performance: The potential of eggshell particles as an ecological additive

“…Recently, 11–14 much attention has been focused on producing ecocomposites reinforced with natural raw materials due to biodegradability, low density, wide availability, low cost, carbon capture, and usually low energy content. The main renewable polymer matrices used for ecological composites production are polycaprolactone, 15,16 poly(lactic acid), 17,18 polyhydroxybutyrate, 19,20 poly(butylene adipate co‐terephthalate), 21,22 and biopolyethylene (BioPE), 23,24 considering good mechanical properties for structural applications.…”