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Influence of disperse particles on the modulus of elasticity of polymer blends
The article considers various calculation methods for estimating modulus of elasticity depending on mixing formula. These dependencies can have different curvatures, showing that the modulus of elasticity of the blends can exceed the average values for different blends. The authors made a dynamic mechanical analysis of incompatible blends of polydimethylsiloxane and polyisoprene, the measured temperature dependence of modules accumulation and loss [3]. They detected two relaxation mechanisms, which can be suppressed by using computerization representing the diblock copolymers of the same components. The possibility of calculating elasticity modulus is presented for different situations: the dispersion of solid polymer in the viscoelastic matrix, dispersion of solid polymer 1 in solid polymer 2; dispersion of solid partially crystalline polymer in solid polymer 2. The dependence of the modulus of elasticity on molar and volume fraction have different forms, depending on Van der Waal component volume, the molecular weight of the recurring units, component density, domain volume, etc. The very form of the dependency is determined by the physical state (rubber elasticity polymer, crystalline polymer, solid amorphous polymer) of the blend components.
Influence of disperse particles on the modulus of elasticity of polymer blends
The article considers various calculation methods for estimating modulus of elasticity depending on mixing formula. These dependencies can have different curvatures, showing that the modulus of elasticity of the blends can exceed the average values for different blends. The authors made a dynamic mechanical analysis of incompatible blends of polydimethylsiloxane and polyisoprene, the measured temperature dependence of modules accumulation and loss [3]. They detected two relaxation mechanisms, which can be suppressed by using computerization representing the diblock copolymers of the same components. The possibility of calculating elasticity modulus is presented for different situations: the dispersion of solid polymer in the viscoelastic matrix, dispersion of solid polymer 1 in solid polymer 2; dispersion of solid partially crystalline polymer in solid polymer 2. The dependence of the modulus of elasticity on molar and volume fraction have different forms, depending on Van der Waal component volume, the molecular weight of the recurring units, component density, domain volume, etc. The very form of the dependency is determined by the physical state (rubber elasticity polymer, crystalline polymer, solid amorphous polymer) of the blend components.
Influence of disperse particles on the modulus of elasticity of polymer blends
Matseevich Tat’yana Anatol’evna (Autor:in) / Popova Marina Nikolaevna (Autor:in) / Volodina Aleksandra Evgen’evna (Autor:in) / Askadskiy Andrey Aleksandrovich (Autor:in)
2014
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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