The relationship of structure, thermal and water vapor permeability barrier properties of poly(butylene succinate)/organomodified beidellite clay bionanocomposites prepared by in situ polycondensation

Abstract

The exploitation of beidellite clay (BDT), used as a nanofiller in the preparation of poly(butylene succinate) (PBS)/organoclay biodegradable nanocomposites, was investigated. Their thermal and water vapor barrier properties were also studied.

A Review on Current Strategies for the Modulation of Thermomechanical, Barrier, and Biodegradation Properties of Poly (Butylene Succinate) (PBS) and Its Random Copolymers

“…A linear relationship between the cloisite content and oxygen/water vapor permeability was found, showing a decrease of ~50% for both gases with 7 wt% of the OMMT [126], in a similar way as for the PLA/PBS-ran-PBA and PLA/PBS clay nanocomposites [127], whereas other authors reported a lower reduction of O 2 P in PLA/PBS blends (80/20 w/w) with Cloisite 30B [115]. A similar reduction was achieved for PBS nanocomposites with organically modified layered silicate (OMLS) [112,128], and organomodified beidellite clay nanocomposites [129]. For PBS-ran-PBA nanocomposites with native montmorillonite and OMMT, the gas permeabilities drop between 60% and 70% in water-injection-extruded PBS-ran-PBA/Cloisite 30B nanocomposites [113].…”

Effects of the species of crosslinking reagents on the structures and properties of biodegradable poly (butanediol sebacate ‐ butanediol terephthalate) copolyester

“…In view of the mechanical properties enhanced, some solutions are proposed: (i) blending; [8][9][10] (ii) process; 11,12 (iii) crosslinking; [13][14][15][16] (iv) copolymerization. 17 As a commonly used modification method in polymer materials, blending could not only improve performance, but sometimes reduce costs, which provides the possibility for the promotion of materials. 18 For example, Shuo Qiu 19 and Atcharawan Srisa 20 blended PBAT with PLA to improve the mechanical properties by adding nanopolyhedral oligomeric silsesquioxane and antibacterial properties by adding trans-cinnamaldehyde of film.…”

Physical and biological properties of electrospun poly(d,l‐lactide)/nanoclay and poly(d,l‐lactide)/nanosilica nanofibrous scaffold for bone tissue engineering

“…Although the increased diameter of the PLA/AS fibers can induce an increase of the WCA by reducing the specific surface of the mat, the slight increase in hydrophilicity observed for the PLA/AS systems can be ascribed to the presence of silicon dioxide on the nanosilica surface 87 . On the other hand, the more pronounced WCA reduction observed for PLA/CLO systems can be likely ascribed to the thinner fiber diameter observed by SEM and to the presence of the organo‐modified clays at the surface of the fibers, as highlighted by FTIR‐ATR measurements 88,89 …”

“… 87 On the other hand, the more pronounced WCA reduction observed for PLA/CLO systems can be likely ascribed to the thinner fiber diameter observed by SEM and to the presence of the organo‐modified clays at the surface of the fibers, as highlighted by FTIR‐ATR measurements. 88 , 89 …”

“…87 On the other hand, the more pronounced WCA reduction observed for PLA/CLO systems can be likely ascribed to the thinner fiber diameter observed by SEM and to the presence of the organo-modified clays at the surface of the fibers, as highlighted by FTIR-ATR measurements. 88,89 Electrospun PLA usually exhibits much lower crystallinity than that of PLA in pellets because of the high speed of solidification during the process. 90 During the jet, the PLA chains are not able to crystallize because of the rapid solidification due to the solvent evaporation, therefore, the electrospun PLA specimens were nearly amorphous (χ PLA = 9.41%).…”