Pcl diol 2000 shape memory polymer
SpletEven after being processed into fibrous structures, these PCL-PDMS copolymers maintained their shape memory properties, and all the fibers exhibited excellent shape … Splet08. jun. 2016 · POLYDO DP-2000. Technical Datasheet Supplied by Kukdo Chemical. Polyether diol. It can be blended with other polyols to improve the property. …
Pcl diol 2000 shape memory polymer
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Splet08. jan. 2016 · Shape memory polymer (SMP) is a unique class of such polymers for which externally programmed shape(s) can be temporarily fixed and later recovered on demand (8–10). Realization of its vast practical potential in a number of technological areas including deployable structures (for example, biomedical and aerospace) ( 11 ) and … Splet13. apr. 2024 · Shape memory polymers have attracted extensive attention attributable to their characteristics and abundant applications. In this study, shape memory behavior …
Splet01. nov. 2015 · The electrospun polyurethane (PU) exhibits good shape memory effect as that polyurethane before the electrospinning. Polyurethane with the ratio of BDO to PCL of 1.5:1.0 and 2.0:1.0, the 40 s... SpletThe thermally induced shape-memory nanopatterns were prepared by chemically crosslinking semi-crystalline poly(ε-caprolactone) (PCL) in a mold to show shape-memory effects over its melting temperature (Tm = 33°C). Permanent surface patterns were first generated by crosslinking the PCL macromonomers in a mold, and temporary surface …
SpletShape memory poly(ε-caprolactone) (PCL) networks with different molecular weights of PCL diol were prepared via thiol–ene reaction in this work. The highly efficient thiol–ene reaction ensured a uniform distribution of PCL chains between crosslinker, contributing well-defined network architecture with good mechanical and shape memory properties. Splet25. apr. 2002 · In the first step of the polymer synthesis, macrodiols with different thermal characteristics are synthesized through ring-opening polymerization of cyclic diesters or lactones, with a low-molecular-weight diol as initiator, and purified ().In the current study, oligo(ɛ-caprolactone)diol (OCL) was chosen as the precursor for the switching segments …
Spletfeature two-way reversible shape memory behavior while maintaining comparable thermal and mechanical proper-ties after processing and curing. Our approach was first to … scully uf-21Splet29. apr. 2024 · The ratio of PLA diol to PCL diol was adjusted to investigate their thermal and mechanical properties. These bio-based shape memory polyurethanes (bio-PUs) showed a glass transition temperature (T g) value in the range of −10.7–32.5 °C, which can be adjusted to be close to body temperature. The tensile strength and elongation of the … pdf iceSplet01. nov. 2024 · Shape memory polyurethane belongs to a class of smart materials, and it has excellent comprehensive performance and is widely used to represent shape … scully university challengeSplet20. jan. 2024 · In a recent study published in the journal Applied Materials Today, researchers from China developed a facile method to fabricate smart multi-responsive shape and color memory materials using poly (ε-caprolactone) (PCL)-based dynamic polymer network, which was programmed in specific shapes at the macroscale and … scully universal truck tester 09832Splet17. okt. 2007 · Shape memory polymer was first developed by CDF Chimie ... No crystallization was observed when PCL-diol has a number average molecular weight less than 2000 g/mole and the optimum molecular weight in terms shape memory ... Kim BK, Choi YJ (2000) Polymer 41:1849. CAS Google Scholar Han S, Gu BH, Nam KH, Im SJ, Kim … scully universal truck tester 08268Splet01. sep. 2024 · The following raw materials were used in Examples and Comparative Examples. 100 parts by mass of aliphatic polycarbonate diol (trade name: "Carbonate Diol UH-CARB 200", molecular weight 2000, 1,6-hexanediol type, manufactured by Ube Industries, Ltd.) and 8.6 parts by mass of diphenyl carbonate were … pdf icc profileSplet01. dec. 2016 · The highly crystalline polymer PCL, with a Tm of around 60 °C, was used as the reversible, switch segments. The shape memory behaviors, morphological phase separation, and thermal and mechanical properties of the blends were investigated in detail. 2. Materials and methods 2.1. Materials scully vent alarm