Viscose tensile strength

Molecular weight. The molecular weight influences the melt viscosity, tensile strength, the low temperature brittleness, and the resistance to tearing. 

Polymer Specific gravity Mooney viscosity Tensile strength, MPa Elongation, % Ash, % Acetone extract, %... 

The significance of such degradation is realized when one considers that any reaction which randomly breaks one carbon—carbon bond per thousand bonds in the polymer would reduce the average molecular weight by one-half (23). This effect would be observable in properties such as melt viscosity, tensile strength, and bulk modulus. 

Among the terephthalate-based polyether-ester copolymers, those prepared using 1,4-butanediol as the diol monomer exhibit the best overall physical properties. The use of ethylene glycol as the diol monomer retards the rate of polymer formation and results in copolymers which crystallize slowly. Other aliphatic ,w-diols yield terephthalate-based polyether-ester copolymers which are low in tensile strength and tear strength relative to the 1,4-butanediol-based copolymer. Terephthalate-based copolymers prepared with 1,4-benzenedimethanol as the diol monomer are relatively low in inherent viscosity, tensile strength, and tear strength. 

MW of plastics influences their properties. As an example with increasing MW properties increase for abrasion resistance, brittleness, chemical resistance, elongation, hardness, melt viscosity, tensile strength, modulus, toughness, and yield strength. Decreases occur for adhesion, melt index, and solubility. 

Filler Average particle size Viscosity Tensile strength Flexural strength Impact strength... 

EDPE/PA- 10 X 100 X 1 RT air X 100 Gel fraction, carbonyl formation torque, viscosity, tensile strength and modulus, elongation impact strength, SEM, DSC 11-14... 

Physical properties of polymers are influenced by the sizes of the molecules and by the nature of the primary and secondary bond forces. They are also influenced by the amount of symmetry or uniformity in molecular structures, and by arrangements of the macromolecules into amorphous or crystalline domains. This affects melting temperatures, solubilities, melt and solution viscosities, tensile strengths, elongation, flexibility, etc. ... 

The molecular weight and molecular weight distribution affect many of the physical properties of PVA. These include solution viscosity, tensile strength, block resistance, water and solvent resistance, adhesive strength, and dispersing power. These effects are well documented (1,9-11). Reliable and accurate methods are required to understand the effect of molecular weight on physical properties and, ultimately, the performance of PVA in any application or process. 

Type MW Processing Temperature (°C) Melt viscosity Tensile strength Solubility rate ... 

HDPE or PP were compatibilized with EPDM by heating with dicumyl peroxide. This produced PE or PP radicals which added readily across the double bonds in the EPDM, increasing melt viscosity, tensile strength, and ultimate elongation [79]. 

Inherent Viscosity Tensile Strength (Tenacity), g/denier Elongation at Break, %... 

Increasing surface area (decreasing particle size) gives lower resilience and higher Mooney viscosity, tensile strength, abrasion resistance, tear... 

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