Solid State Behavior of Linear Polyesters and Polyamides |
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Page 26
This was shown in two ways ( 100 ) . First , varying the flow rate of nitrogen
through the reactor had little effect on polycondensation . This indicated that
diffusion into the gas was not a rate - controlling step . According to Walas ( 107 )
and Tu et ...
This was shown in two ways ( 100 ) . First , varying the flow rate of nitrogen
through the reactor had little effect on polycondensation . This indicated that
diffusion into the gas was not a rate - controlling step . According to Walas ( 107 )
and Tu et ...
Page 38
In some cases , the uncontrolled increase of the molecular weight , e . g . , in the
manufacture of nylon 6 fiber [ 128 ] , has a negative effect on the properties of the
finished product . Accordingly , low molecular weight substances ( usually ...
In some cases , the uncontrolled increase of the molecular weight , e . g . , in the
manufacture of nylon 6 fiber [ 128 ] , has a negative effect on the properties of the
finished product . Accordingly , low molecular weight substances ( usually ...
Page 277
The probable reason for the lack of evidence is that the magnitude of the effects
lays within the scatter range of these static fracture ... Here the effect of poor and
good bonding is summarized by the example of GF - PET and - PBT composites .
The probable reason for the lack of evidence is that the magnitude of the effects
lays within the scatter range of these static fracture ... Here the effect of poor and
good bonding is summarized by the example of GF - PET and - PBT composites .
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achieved acid additional amorphous annealing Appl applied aspect average behavior block bonding changes Chem chemical composites conclusion constant crack crystallinity crystallization curves decreases deformation density depends determined diameter diffusion direction distribution domains draw ratio drawn effect element energy Equation experiments extrusion factor fatigue fiber Figure fracture fracture toughness function given groups growth healing heat higher important increasing indicated initial length linear load lower material matrix maximum measurements mechanical melt method microfibrils microstructure modulus molded molecular weight molecules nylon nylon 66 observed obtained occurs orientation peak phase Phys polyamides polycondensation polyesters Polymer Sci polymerization properties range reaction regions reported Reprinted from Ref respectively samples SAXS scattering shows solid solid state polycondensation solid-state specimen speed stage strain strength stress structure studied Table temperature tensile units values yield