Simultaneous the thermodynamics favorable compatibility and morphology to achieve excellent comprehensive mechanics in PLA/OBC blend

Highly toughened polylactide with epoxidized polybutadiene by in-situ reactive compatibilization

“…5) supported this conclusion, as they showed a smooth semicircular shape of ColeeCole plot. Similar morphologies have been reported in many other reactive polymer blending system [31,46]. The size of the dispersed phase implied miscibility between the continuous and the dispersed phase.…”

“…For both PLA/biodegradable and PLA/non-biodegradable blends, relatively high contents of flexible polymer is required to blend with PLA and the toughness is improved while the tensile strength and modulus are tremendous decrease [30]. In addition, most polymer blends are thermodynamically immiscible due to the low entropy of mixing, and the poor interface would easily result in premature interfacial failure and hence rapid and catastrophic crack propagation through the whole material, thus, a third component is often introduced as a compatibilizer [31]. To get the excellent toughness-strength balance, less flexible polymer component and an effective strategy for dramatically improving the toughness are expected.…”

Simultaneously toughening and reinforcing poly(lactic acid)/thermoplastic polyurethane blend via enhancing interfacial adhesion by hydrophobic silica nanoparticles

“…Extensive efforts have been made to overcome the inherent brittleness of poly(lactic acid) (PLA), and blending it with an elastomer such as thermoplastic polyurethane (TPU), polyurethane (PU) or natural rubber is the most commonly used method [1][2][3][4][5][6]. However, high contents of elastomer (higher than 30 wt%) need to be added to satisfactorily toughen PLA [1][2][3][4].…”

“…To the best knowledge of the authors, little report has been published on investigations about toughened PLA systems with good toughness-strength balance using low elastomer contents [6].…”

Regulation of crystalline morphologies and mechanical properties of olefin multiblock copolymers by blending polymer with similar architecture of constituent blocks

“…Investigations have found that the block length, octene content as well as the ratio between hard and soft blocks is closely correlated to the apparent properties of this M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 5 promising elastomer. [33][34][35][36][37][38][39][40] In consideration of the difficulty of altering block architecture during synthesizing, we aim to adjust the apparent properties by blending with PE, which possesses architecture similar to hard blocks of OBC. Based on our exploration, we found that PE chains were inclined to cocrystallize with OBC, which made it possible to increase strength without great depression of tenacity.…”