Role of formulation additives on the properties of thermoplastic polyether ester elastomer-based and carbon fabric-reinforced multilayer composites

Abstract

In this study, multilayer carbon fabric-reinforced composites (CFRC) were manufactured by compression molding technique with the combination of carbon fabric and thermoplastic polyether ester elastomer (TPEE) composites. The TPEE-based polymer layers were prepared as binary, ternary, and quaternary composites using carbon black (CB) or N-(β-aminoethyl)-γ-aminopropyl-trimethoxysilane (AEAP) modified carbon black (mCB), ethylene-glycidyl methacrylate copolymer (EGMA) and/or paraffin oil. The effects of formulation additives on multilayer CFRC were investigated in terms of their mechanical, electrical resistivity, electrically stimulated shape memory properties and morphologies. Tensile modulus of neat TPEE included multilayer CFRC increased slightly with the addition of both mCB and oil to TPEE. The highest impact strength of 112.2 kJ/m2 was obtained for TPEE-mCB-EGMA-Oil containing CFRC multilayer composites, which was 30% higher than CFRC with neat TPEE. All modified and reinforced CFRC exhibited higher electrical conductivities than neat TPEE containing CFRC. Electrically triggered bending test showed that combination of TPEE, mCB, EGMA and oil together with carbon fabric in multilayer structure revealed 80% shape recovery ratio within less than 2 min.

High-Expansion Injection-Molded Thermoplastic Polyester Elastomer Foam with Oriented Cellular Structure and Anisotropic Compressive Properties

“…Thermoplastic elastomers (TPEs) are typically block copolymers, comprising two or more distinct structural units. These polymers exhibit flexibility akin to conventional vulcanized rubber, yet retain the capability for reprocessing. − A notable subclass within this category is the thermoplastic polyester elastomer (TPEE), which generally consists of aromatic polyesters (crystalline phase) as the hard segments and aliphatic polyesters or polyethers (continuous phase) as the soft segments. − The mechanical properties, hardness, and melting temperature of TPEE, akin to other TPEs, can be modulated by varying the ratio of soft to hard segments. − Since its development, TPEE has been widely utilized due to its excellent comprehensive properties including high tensile strength, unparalleled toughness and resilience, robust chemical resistance, as well as considerable weather resistance. − Additionally, TPEE maintains operational integrity in a wide temperature range: it can withstand temperatures exceeding 100 °C for an extended period of time and retain good flexibility in conditions as low as −40 °C . Consequently, TPEE finds frequent application in the fabrication of materials for automobile manufacturing, sportswear, and sound attenuation.…”

Effects of Recycled Polymer on Melt Viscosity and Crystallization Temperature of Polyester Elastomer Blends

“…Hydrogen bonding, polar interactions, and crystallization in the hard domain, which melts at high temperatures, form physical crosslinks. It can be used for a variety of purposes, such as for reinforcing wear-resistant high-and low-temperature properties in the field of automotive parts, highand low-temperature-resistant wire sheaths, hydraulic hoses, shoe materials, transmission belts, flexible couplings, silencer gears, elevator slides, chemical equipment pipeline valve corrosion protection, and so on [7][8][9][10][11][12][13][14].…”