Strain-induced crystallization
WebPoly(ethylene 2,5-furandicarboxylate), referred to as PEF, was uni-axially stretched for temperatures above glass transition temperature. This bio-bas… Web11 Apr 2024 · Pressure vs strain for the (a) uniform and (b) segregated samples under uniform uniaxial stretching with a strain rate of 10 9 s −1. In both cases, the fracture takes place at the position of the TB. Overall, the fracture strength and the maximum stretch strain become larger after segregation.
Strain-induced crystallization
Did you know?
Web30 Apr 2024 · As the strain rate increased to 0.067 s-1, there existed insufficient time to unfold the folded-chain nucleus. As a result, the strain-induced crystallization together with the preservation of the folded-chain nucleus led to a significant increase in UHMWPE’s χ c.
Web23 Oct 2007 · Strain-induced crystallization (SIC) of natural rubber (NR) has been extensively studied even before the advent of macromolecular physics. However, there … WebChenal, J.-M., Gauthier, C., Chazeau, L., Guy, L., & Bomal, Y. (2007). Parameters governing strain induced crystallization in filled natural rubber.
WebThe results showed that the deformation behaviors of the plastic copolymers abided by the Gaussian model, causing the modulus G of the strain-induced hardening process to … WebStrain-induced crystallization in natural rubber has long been modeled as an isothermal process. Recent calorimetric measurements (Samaca Martinez et al. 2013a,b) and a theoretical result (Khiem and Itskov 2024) revealed severe limitations of this approach. First, it was not able to describe the Gough-Joule effect as well as the rate of crystallization …
Web21 Feb 2012 · The ranges of shear rate and shear strain were 0–1,200 s −1 and 0–400,000%, respectively. FIG. 2. Temperature protocol of shear experiments for Rheo-small-angle x-ray scattering (SAXS) and rheo-optical measurements. ... In flow-induced crystallization where a mixed morphology is always observed, Herman’s orientation function depends on ...
WebThis indicates that FAH not only is a typical reducing agent but also can promote the crystallization for this perovskite system. To determine the optimal FAH concentration for the FAMACs SC growth, 2, 3, 4, and 5% FAH was separately added into four precursor solutions and heated at 95°C. macconel \u0026 doddWeb9 Apr 2024 · At high flow strength, a flow-induced crystallization (FIC) occurred, producing a semicrystalline material possessing a high degree of crystallinity and primarily a monoclinic lattice structure. ... including flow-induced phenomena, over wide ranges of strain rates for a series of unentangled and entangled polymeric liquids during the last few ... macc one loveWebStrain-induced crystallization (SIC) of rubber is a common phenomenon of highly stretched rubber. SIC is one of crystallization processes of polymer. 1. Un-vulcanized rubber, vulcanized rubber, reinforcement filled rubber, and thermoplastic elastomer perform SIC. 2. Un-vulcanized NR performs SIC with 1/2 amount of crystal fraction of vulcanized ... costco veggie platters priceWeb20 Nov 2024 · Ultra high cis BR with 98% cis content did not show any evidence of strain-induced crystallization at 23 °C whereas NR clearly exhibited SIC in a study by Kang and coworkers. 6 In an investigation by Toki et al., 7 it was necessary to reduce the temperature to 0°C before high cis BR showed a crystalline X-ray scattering pattern at a strain of ... costco veggie platter costWeb11 Mar 2012 · Neat-NR exhibits strain-induced crystallization around a strain of 2.25, while incorporation of 1 and 4 wt % FGS shifts the crystallization to strains of 1.25 and 0.75, … macconfWeb19 Sep 2012 · Abstract. The time-dependence of strain-induced crystallization in cross-linked natural rubber was studied using synchrotron wide-angle X-ray diffraction (WAXD) … macc one love 2021Web14 Apr 2024 · A model of strain-induced crystallization in elastomers is proposed, combining Flory's original work with a description of crystallization adopted from the theory of micellar solutions, which yields good qualitative and even semiquantitative agreement with measurements of crystallizations in natural rubber at variable cross-link density, … maccon gmbh \\u0026 co. kg