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strain hardening behavior of poly vinyl alcohol borate

strain hardening behavior of poly vinyl alcohol borate

strain hardening behavior of poly vinyl alcohol borate

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Strain Hardening Behavior of Poly(vinyl alcohol)/Borate ...Furthermore, by analyzing the influence of characteristic value of De as 1 on the rheological behavior of PVA/borate hydrogels, it is concluded that intercycle strain hardening is dominated by strain-rate-induced increase in the number of elastically active chains when De < 1, while strain-induced non-Gaussian stretching dominates when De > 1.Cited by: 14Publish Year: 2017Author: Gang Huang, Huanhuan Zhang, Yulin Liu, Haijian Chang, Hongwei Zhang, Hongzan Song, Donghua Xu, Tongf...

Thermorheological complexity of poly(vinyl alcohol)/borax strain hardening behavior of poly vinyl alcohol borate

Jul 10, 2020 · Huang, G., H. Zhang, Y. Liu, H. Chang, H. Zhang, H. Song, D. Xu, and T. Shi, Strain hardening behavior of poly(vinyl alcohol)/borate hydrogels, Macromolecules 50, 2124 2135 (2017). https://doi.org/10.1021/acs.macromol.6b02393, Google Scholar Crossref; 57.Author: Jingjing Li, Jingjing Li, Xiao Cao, Yonggang Liu, Quan Chen, Quan ChenPublish Year: 2020Thermorheological complexity of poly(vinyl alcohol)/borax strain hardening behavior of poly vinyl alcohol borateFurthermore, by analyzing the influence of characteristic value of D-e as 1 on the rheological behavior of PVA/borate hydrogels, it is concluded that intercycle strain hardening is dominated by strain hardening behavior of poly vinyl alcohol borateThe Rheological Studies on Poly(vinyl) Alcohol-Based strain hardening behavior of poly vinyl alcohol boratePark et al. [ 30 ], also confirmed that the PVA solution with the addition of borax displayed strain-hardening behaviour. 3.3. Rheological Properties: Oscillatory Mode Oscillatory shear mode testing was conducted by performing the frequency sweep test with increasing frequency in the range of

The Chemorheology of Poly(vinyl alcohol)-Borate Gels strain hardening behavior of poly vinyl alcohol borate

Strain Hardening Behavior of Poly (vinyl alcohol)/Borate Hydrogels. Macromolecules 2017, 50 (5), 2124-2135. https://doi.org/10.1021/acs.macromol.6b02393 Beili Lu, Fengcai Lin, Xin Jiang, Jiajia Cheng, Qilin Lu, Jianbin Song, Chong Chen, and Biao Huang.Cited by: 165Publish Year: 1969Author: Ray K. Schultz, Raymond R. MyersTensile strain-hardening behavior or polyvinyl alcohol strain hardening behavior of poly vinyl alcohol borateTensile strain-hardening behavior or polyvinyl alcohol engineered cementitious composite (PVA-ECC) strain hardening behavior of poly vinyl alcohol borate Test results indicated that the tensile strain-hardening behavior of the URHM was achieved in strain hardening behavior of poly vinyl alcohol borateTensile properties of strain-hardening cementitious strain hardening behavior of poly vinyl alcohol boratePartially replacing polyvinyl-alcohol (PVA) fibers with polypropylene (PP) fibers in strain-hardening cementitious composites (fiber hybridization) modify certain mechanical properties of these materials. The hybridization based on the introduction of low-modulus hydrophobic polypropylene fibers improves the ductility and the strain-hardening behavior of the cementitious composites containing strain hardening behavior of poly vinyl alcohol borate

Tensile Strain-Hardening Behavior of Polyvinyl Alcohol strain hardening behavior of poly vinyl alcohol borate

Title: Tensile Strain-Hardening Behavior of Polyvinyl Alcohol Engineered Cementitious Composite (PVA-ECC) Author(s): Victor C. Li, Shuxin Wang, and Cynthia Wu Publication: Materials Journal Volume: 98 Issue: 6 Appears on pages(s): 483-492 Keywords: cementitious; crack; strain. Date: 11/1/2001 Abstract: A high-performance polyvinyl alcohol fiber-reinforced engineered cementitious composite (PVA strain hardening behavior of poly vinyl alcohol borateTensile Strain Hardening Behavior of PVA Fiber-Reinforced strain hardening behavior of poly vinyl alcohol borateOct 10, 2015 · Randomly oriented short polyvinyl alcohol (PVA) fibers (2% v/v) were used to reinforce the relatively brittle low-calcium (Class F) fly ash-based geopolymer matrix. The matrix and composite properties of the developed fly ash-based EGCs [including workability of the fresh matrix, density, compressive strength, matrix fracture properties (comprising elastic modulus, fracture toughness, and composite crack tip toughness), and uniaxial tensile behaviorSupporting Information for Strain Hardening Behavior of strain hardening behavior of poly vinyl alcohol borate1 Supporting Information for Strain Hardening Behavior of Poly(vinyl alcohol)/Borate Hydrogels Gang Huang,, Huanhuan Zhang,, , Yulin Liu,, § #Haijian Chang, || Hongwei Zhang, Hongzan Song,§ Donghua Xu, *, and Tongfei Shi*, State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022 strain hardening behavior of poly vinyl alcohol borate

Strain hardening behavior of lightweight hybrid polyvinyl strain hardening behavior of poly vinyl alcohol borate

Nov 20, 2010 · Experimental results on the strain hardening and multiple cracking behaviors of polyvinyl alcohol (PVA) fiber reinforced cementitious composites under bending are reported in this paper. Different hybrid combinations of PVA fibers with different lengths and volume fractions are considered to reinforce the mortar matrix.Cited by: 98Publish Year: 2011Author: Shaikh Faiz Uddin Ahmed, Hirozo MihashiStrain Stiffening in Synthetic and Biopolymer Networks strain hardening behavior of poly vinyl alcohol borateStrain-stiffening behavior common to biopolymer networks is difficult to reproduce in synthetic networks. Physically associating synthetic polymer networks can be an exception to this rule and can demonstrate strain-stiffening behavior at relatively low values of strain. Here, the stiffening behavior of model elastic networks of physically associating triblock copolymers is characterized by shear rheometry. Experiments demonstrate a clear correlation between network structure and strain strain hardening behavior of poly vinyl alcohol borateStrain Hardening and Strain Softening of Reversibly Cross strain hardening behavior of poly vinyl alcohol borateThe divergent strain softening of samples with faster cross-linkers in semidilute entangled PVP solutions, relative to the strain hardening of samples with slower cross-linkers, is consistent with observed shear thinning/shear thickening behavior reported previously and is attributed to the fact that the average time that a cross-linker remains detached is too short to permit the local relaxation of polymer chain Cited by: 63Publish Year: 2011Author: Donghua Xu, Stephen L. Craig

Strain Hardening Behavior of Poly(vinyl alcohol)/Borate strain hardening behavior of poly vinyl alcohol borate

Mar 01, 2017 · Not Available adshelp[at]cfa.harvard.edu The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: 14Publish Year: 2017Author: Gang Huang, Huanhuan Zhang, Yulin Liu, Haijian Chang, Hongwei Zhang, Hongzan Song, Donghua Xu, Tongf strain hardening behavior of poly vinyl alcohol borateStrain Hardening Behavior of Poly(vinyl alcohol)/Borate strain hardening behavior of poly vinyl alcohol borateFurthermore, by analyzing the influence of characteristic value of De as 1 on the rheological behavior of PVA/borate hydrogels, it is concluded that intercycle strain hardening is dominated by strain-rate-induced increase in the number of elastically active chains when De < 1, while strain-induced non-Gaussian stretching dominates when De > 1.Cited by: 14Publish Year: 2017Author: Gang Huang, Huanhuan Zhang, Yulin Liu, Haijian Chang, Hongwei Zhang, Hongzan Song, Donghua Xu, Tongf strain hardening behavior of poly vinyl alcohol borateRobust and fire retardant borate-crosslinked poly (vinyl strain hardening behavior of poly vinyl alcohol borateNov 22, 2017 · A highly robust and flame retardant borate-crosslinked poly (vinyl alcohol)/montmorillonite aerogel is fabricated through a novel melt-crosslink method. In this way, the PVA/MMT hydrogel was prepared by immersing the frozen PVA/MMT sol into a borax solution, inducing crosslinking between diols of PVA and borate exactly during the ice melt.

Rheological properties of tough hydrogels based on an strain hardening behavior of poly vinyl alcohol borate

Nov 01, 2017 · Huang, G., H. Zhang, Y. Liu, H. Chang, H. Zhang, H. Song, D. Xu, and T. Shi, Strain hardening behavior of poly (vinyl alcohol)/borate hydrogels, Macromolecules 50, 2124 2135 (2017). https://doi.org/10.1021/acs.macromol.6b02393, Google Scholar Crossref, CAS 25.Rapid self-healing, stretchable, moldable, antioxidant and strain hardening behavior of poly vinyl alcohol borateNov 15, 2019 · Excellent mechanical stability, moldability, stretchability and rapid self-healing ability without any external intervention were realized in one system due to the combined dynamic borate ester bonding between polyvinyl alcohol-borax (PB) and multi Nonlinear measures and modeling to examine the role of strain hardening behavior of poly vinyl alcohol borateJan 12, 2018 · Ahn KH, Osaki K (1994) A network model for predicting the shear thickening behavior of a poly (vinyl alcohol) - sodium borate aqueous solution. J Non-Newton Fluid Mech 55(3):215227. Article; Google Scholar

Mechanical properties of borate crosslinked poly(vinyl strain hardening behavior of poly vinyl alcohol borate

Abstract. Boric acid does not introduce crosslinks in poly (vinyl alcohol) solutions, but gelation does occur in the presence of cations. In this experimental study, the dynamic mechanical properties of Cited by: 32Publish Year: 1981Author: A. T. Y. Cheng, F. RodriguezLarge amplitude oscillatory shear as a way to classify the strain hardening behavior of poly vinyl alcohol borateDepending on the interactions between the microstructures, it was found that there exist at least four types of LAOS behavior: type I, strain thinning (G, G decreasing); type II, strain hardening (G, G increasing); type III, weak strain overshoot (G decreasing, G increasing followed by decreasing); type IV, strong strain strain hardening behavior of poly vinyl alcohol borateLarge amplitude oscillatory shear as a way to classify the strain hardening behavior of poly vinyl alcohol borateDec 06, 2002 · It is believed that strain hardening or strain overshoot is caused by the formation of complex microstructures. The PVA/Borax solution which shows strain hardening is reported to form a complex between hydroxyl groups and borate anions, which play the role of temporary crosslinks among the PVA chains . Thus, a polymer chain has a strong resistance to align with the flow as strain is

Interface tailoring for strain-hardening polyvinyl alcohol strain hardening behavior of poly vinyl alcohol borate

Polyvinyl alcohol (P VA) fiber tends to rupture instead of pullout in a cementitious matrix due to the st rong chemical bonding to cement hydrates and the slip-hardening response during pullout. In strain hardening behavior of poly vinyl alcohol borateHongzan SONG | PhD | Hebei University, Baoding | College strain hardening behavior of poly vinyl alcohol borateFundamentally understand the structure-property relationship and processing of polymers, polymer blends, and polymer composites; phase transitions of polymers such as crystallization, melting, and strain hardening behavior of poly vinyl alcohol borateHardening Behavior - an overview | ScienceDirect TopicsA typical true stressstrain behavior for large strain deformation exhibits, after yielding, some transient with high but decreasing hardening rate until a low but constant rate is attained (Figure 2b), that is, the stress increases linearly with strain, and eventually a steady state (constant flow stress) is attained. Correspondingly, the large strain-hardening curve exhibits five distinct stages:

First-harmonic nonlinearities can predict unseen third strain hardening behavior of poly vinyl alcohol borate

Abstract. We use first-harmonic MAOS nonlinearities from G 1 and G 1 to test a predictive structure-rheology model for a transient polymer network. Using experiments with PVA-Borax (polyvinyl alcohol cross-linked by sodium tetraborate (borax)) at 11 different compositions, the model is calibrated to first-harmonic MAOS data on a torque-controlled rheometer at a fixed frequency, and strain hardening behavior of poly vinyl alcohol borateEvidence of Strain Hardening in DNA Gels | Request PDFStrain Hardening Behavior of Poly(vinyl alcohol)/Borate Hydrogels strain hardening behavior of poly vinyl alcohol borate by analyzing the influence of characteristic value of D-e as 1 on the rheological behavior of PVA/borate hydrogels, it is strain hardening behavior of poly vinyl alcohol borateContinuous relaxation spectra for constitutive models in strain hardening behavior of poly vinyl alcohol borateAug 31, 2018 · We derive and demonstrate how analytical solutions for strain-controlled medium-amplitude oscillatory shear (MAOS) can be coupled with a

Constitutive modeling of Poly Vinyl Alcohol-Sodium

1.2 Poly Vinyl Alcohol-Sodium Borate polymer gel Poly Vinyl Alcohol is a synthetic water-soluble, cross-linked polymer. Poly Vinyl Alcohol-Sodium Borate (PVA-SB) thermo-reversible gels have attracted a substantial research interest due to their physico-chemical properties [1], leading toACI MATERIALS JOURNAL TECHNICAL PAPER strain hardening behavior. A high-performance polyvinyl alcohol fiber-reinforced engineered cementitious composite (PVA-ECC)7 for structural applications has been developed. Although a large amount of PVA-ECC research 8-11 has been carried out, little is known about the durability of PVA-ECC. While PVA fibers have been in use for some time and the

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