Effect of solvent-matrix interactions on structures and mechanical properties of micelle-crosslinked gels

2019 ◽  
Vol 57 (8) ◽  
pp. 473-483 ◽  
Author(s):  
Dan Xu ◽  
Ting Xu ◽  
Guorong Gao ◽  
Ying Xiao ◽  
Zongbao Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Effect Of Solvent ◽  
Matrix Interactions

scholarly journals The pH effect of solvent in silanization on fluoride released and mechanical properties of heat-cured acrylic resin containing fluoride-releasing filler

2016 ◽  
Vol 35 (3) ◽  
pp. 440-446 ◽  
Author(s):  
Natha NAKORNCHAI ◽  
Mansuang ARKSORNNUKIT ◽  
Krid KAMONKHANTIKUL ◽  
Hidekazu TAKAHASHI
Keyword(s):  
Mechanical Properties ◽  
Ph Effect ◽  
Acrylic Resin ◽  
Effect Of Solvent

Revaluation of Australian palm residues in polypropylene composites: Statistical influence of fiber treatment

2020 ◽  
pp. 002199832096053 ◽  
Author(s):  
Noelle C Zanini ◽  
Rennan FS Barbosa ◽  
Alana G de Souza ◽  
Derval S Rosa ◽  
Daniella R Mulinari
Keyword(s):  
Mechanical Properties ◽  
Tensile Properties ◽  
Mechanical Performance ◽  
Alkali Treatment ◽  
Mechanical Analysis ◽  
Melt Mixing ◽  
Polypropylene Composites ◽  
Matrix Interactions ◽  
Fiber Treatment ◽  
Fiber Matrix

Australian palm residues are generated by palm heart industry in large quantities and are considered an underused material with a composition rich in lignocellulosic structures. This residue is generally utilized as briquettes for energy or sheep feed; however, few works investigate this residue as composite fillers. This work aimed to revalue Australian palm residues (PR) by preparing polypropylene composites through melt mixing, using different fiber contents (0, 5, 10, 20, and 30 wt%), and evaluate the statistical influence of fibers (residues) alkali treatment (MPR) in composites mechanical properties. PR and MPR were evaluated by FTIR, XRD, SEM, TGA, and composites were assessed using thermal and mechanical analysis, in which ANOVA statistical analysis was applied. The residues addition increased the mechanical properties and their treatment enhanced the stiffness of the composites compared to pristine PP. However, ANOVA demonstrated that at low residues contents, surface treatment does not increase fiber-matrix interactions effectively, then tensile properties were statistically similar to PP. Considering tensile properties, 20% MPR showed statistically distinct properties, with significative enhancements; no filler contents dependence was verified. Flexural properties were more sensitive to residue loading, and composites with 30% PR and MPR presented superior mechanical performance. This difference is associated with a higher sensitivity of tensile stress towards fiber-matrix interactions, which was improved with fiber treatment. Also, the residues content and treatment influenced the composites' thermal stability, with better results for PP-MPR. Results indicate that palm residue is an excellent filler for improving composites' thermal and mechanical properties, with a greener character.

scholarly journals The effect of solvent choice on the mechanical properties of carbon nanotube–polymer composites

2007 ◽  
Vol 67 (15-16) ◽  
pp. 3158-3167 ◽  
Author(s):  
Umar Khan ◽  
Kevin Ryan ◽  
Werner J. Blau ◽  
Jonathan N. Coleman
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Effect Of Solvent

Understanding and Regulating Cell-Matrix Interactions Using Hydrogels of Designable Mechanical Properties

2021 ◽  
Vol 17 (2) ◽  
pp. 149-168
Author(s):  
Jiapeng Yang ◽  
Yu Zhang ◽  
Meng Qin ◽  
Wei Cheng ◽  
Wei Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Response ◽  
Research Direction ◽  
Mechanical Environment ◽  
Cell Functions ◽  
Cell Matrix ◽  
Matrix Interactions ◽  
Sense And Respond ◽  
Cell Matrix Interactions

Similar to natural tissues, hydrogels contain abundant water, so they are considered as promising biomaterials for studying the influence of the mechanical properties of extracellular matrices (ECM) on various cell functions. In recent years, the growing research on cellular mechanical response has revealed that many cell functions, including cell spreading, migration, tumorigenesis and differentiation, are related to the mechanical properties of ECM. Therefore, how cells sense and respond to the extracellular mechanical environment has gained considerable attention. In these studies, hydrogels are widely used as the in vitro model system. Hydrogels of tunable stiffness, viscoelasticity, degradability, plasticity, and dynamical properties have been engineered to reveal how cells respond to specific mechanical features. In this review, we summarize recent process in this research direction and specifically focus on the influence of the mechanical properties of the ECM on cell functions, how cells sense and respond to the extracellular mechanical environment, and approaches to adjusting the stiffness of hydrogels.

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