Effect of the multi-functional epoxides on the thermal, mechanical and rheological properties of poly(butylene adipate-c
- PDF / 4,337,340 Bytes
- 25 Pages / 439.37 x 666.142 pts Page_size
- 3 Downloads / 216 Views
Effect of the multi‑functional epoxides on the thermal, mechanical and rheological properties of poly(butylene adipate‑co‑terephthalate)/polylactide blends D. D. Wu1,2 · Y. Guo1 · A. P. Huang1 · R. W. Xu1 · P. Liu2 Received: 4 December 2019 / Revised: 4 September 2020 / Accepted: 23 September 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract The growing interest for biodegradable products promoted the development of new materials. In this work, three types of multi-functional epoxides of Joncryl ADR4368, ADR4380 and ADR4370 were used to study the effect of Joncryl types on the morphology, mechanical, thermal and rheological properties of poly(butylene adipate-co-terephthalate)/poly(lactide) (PBAT/PLA) blends. According to the structure information of ADRs, the reaction mechanism between different ADRs with PBAT and PLA was the same. The results of GPC, mechanical, rheological properties and DSC indicated that PBAT/PLA/ADR4368 blends showed the high Mn, mechanical properties, viscoelasticity and good compatibility compared with PBAT/ PLA/ADR4380 and PBAT/PLA/ADR4370 blends. The performance difference of PBAT/PLA/ADR4368, PBAT/PLA/ADR4380 and PBAT/PLA/ADR4370 blends mainly derived from the different amount epoxy reactive functional groups per molecule. ADR4368 had the best modification effect. When the content of ADR4368 reached 0.2 wt%, the tensile strength of the PBAT/PLA/ADR4368 blend increased by about 10 MPa and without any loss in elongation at break compared with that of PBAT/PLA blend. The compatibility between the PBAT and PLA was significantly improved by in situ formation of the graft/comb PBAT-g-PLA copolymers in the presence of the ADR4368, resulting in the enhancement properties of the blends. In addition, thermogravimetric analysis showed enhancement in the thermal stability for the PBAT/PLA/ADR blends. Keywords PBAT · PLA · Compatibilization · Properties · Morphology * R. W. Xu [email protected] * P. Liu [email protected] 1
Lanzhou Petrochemical Research Center, Petrochemical Research Institute, Petrochina, Lanzhou 730060, China
2
College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
13
Vol.:(0123456789)
Polymer Bulletin
Introduction The research focus on biobased and biodegradable polymers has seen growing interest in the recent years because of the continual environmental concerns, as well as because of the risks of depletion of fossil fuels which provide the raw materials for most of the conventional polymers [1–3]. In recent years, a variety of biodegradable polymers have already been introduced into the market and can compete with non-biodegradable traditional polymers in different applications (packaging, biomedical, textile, etc.). In particular, the large use of plastics in the film industry has increased the interest in using biodegradable polymers to replace conventional polymers in order to reduce the influence on environment due to the inappropriate disposal. PBAT is a biodegradable and biocompostable alip
Data Loading...
