Single and repeated snatch loading of textile yarns, and the influence of temperature on the dynamic mechanical properties

J. E. Swallow; M. W. Webb

doi:10.1002/app.1964.070080116

Single and repeated snatch loading of textile yarns, and the influence of temperature on the dynamic mechanical properties

Journal of Applied Polymer Science ◽

10.1002/app.1964.070080116 ◽

1964 ◽

Vol 8 (1) ◽

pp. 257-282 ◽

Cited By ~ 1

Author(s):

J. E. Swallow ◽

M. W. Webb

Keyword(s):

Mechanical Properties ◽

Dynamic Mechanical Properties ◽

Influence Of Temperature ◽

Dynamic Mechanical ◽

Influence Of Temperature On

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Rheological properties of concentrated solutions of carboxymethyl starch

Hemijska industrija ◽

10.2298/hemind0311547s ◽

2003 ◽

Vol 57 (11) ◽

pp. 547-552 ◽

Cited By ~ 1

Author(s):

Zeljko Stojanovic ◽

Katarina Jeremic ◽

Slobodan Jovanovic

Keyword(s):

Reaction Medium ◽

Dynamic Mechanical Properties ◽

Concentrated Solutions ◽

Influence Of Temperature ◽

Carboxymethyl Starch ◽

Dynamic Mechanical ◽

Mechanical Measurements ◽

Three Samples ◽

Influence Of Temperature On ◽

Physical Crosslinking

Carboxymethyl starch was synthesized by the esterification of starch with monochloroacetic acid in ethanol as a reaction medium. Three samples of carboxymethyl starch having different degrees of substitution were prepared. The influence of temperature on the viscosity of concentrated carboxymethyl starch solutions, as well as the dynamic-mechanical properties of the concentrated solutions were investigated. The activation energy of viscous flow was determined and it was found that it decreased with increasing degree of substitution. The results of the dynamic-mechanical measurements showed that solutions of starch and carboxymethyl starches with higher degrees of substitution behave as gels. Values of the storage modulus in the rubbery plateau were used to calculate the molar masses between two points of physical crosslinking, the density of crosslinking and the distance between two points of crosslinking.

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