Study on the Photodegradation Stability of Poly(butylene Succinate-co-butylene Adipate)/TiO₂ Nanocomposites

Abstract

A poly(butylene succinate-co-butylene adipate)/TiO2 (PBSA/TiO2) nanocomposite was prepared by a melt-blending process. The effect of TiO2 nanoparticles on the photodegradation behaviors of the nanocomposite was investigated by transmission electron microscopy (TEM), differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FT-IR), field-emission scanning electron microscopy (FE-SEM), rheological measurements, and mechanical tests. TEM images of the PBSA/TiO2 revealed that the TiO2 nanoparticles were well dispersed in the matrix without obvious aggregation. The FT-IR results indicated that the TiO2 nanoparticles can block high-energy ultraviolet (UV) light and reduce the degradation of the PBSA matrix. The viscosity analysis results indicated that the TiO2 nanoparticles inhibited the chain scission of PBSA matrix under irradiation. In addition, the surface of the PBSA/TiO2 films and their mechanical properties change less than that of untreated PBSA films during the photoaging process. The obtained results imply that the TiO2 nanoparticles can be considered as an efficient photodegradation-resistant additive to PBSA for reducing photodegradation.

Evaluation of the Food Contact Suitability of Aged Bio-Nanocomposite Materials Dedicated to Food Packaging Applications

“…The X C tended to increase but to a lesser extent compared to PBSA materials. The effect of irradiation on PBSA [21,22] and PHBV [23][24][25] has already been studied and similar results were obtained. The decrease of the T c , observed with both materials, was attributed to chain scission mechanism leading to the formation of shorter polymer chains.…”

Accelerated Weathering Effects on Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and PHBV/TiO2 Nanocomposites

“…Loading these materials can improve the biodegradability of the polymer matrix, enhance its performance and increase the range of applications. Poly(butylene succinate), polycaprolactone and PHBV nanocomposites have also gained interest because of their properties [ 24 , 25 , 26 , 32 , 43 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ].…”

“…Larger fractions and better dispersibility of smaller size particles enhanced the degradation. However, a recent study reported that the photodegradation of poly(butylene succinate- co -butylene adipate) was not affected by the addition of rutile TiO 2 nanoparticles coated with a silicon–aluminum composite [ 60 ]. On the other hand, Antunes et al [ 71 ] demonstrated the effect of rutile TiO 2 nanoparticles on the accelerated weathering degradation of poly(lactic acid).…”

Role of Organically-Modified Zn-Ti Layered Double Hydroxides in Poly(Butylene Succinate-Co-Adipate) Composites: Enhanced Material Properties and Photodegradation Protection

“…At the same time, the peak of C=O in the FTIR spectrum can be used to study the evolution of photodegradation. [ 14 , 29 ]. Due to the appropriate degradation rate, thermal stability, mechanical property, and good processability, practical applications of PBSA can be found in mulch films, where the photodegradation stability is a crucial property.…”