6 Cocoon Silk: From Mesoscopic Materials Design …
291
Fig. 6.26 Influence of Forced Reeling Speed on Mechanical Performance of Fibers and Orientation
Function. a Silkworm silk fibers spun by forced reeling can be compared to spider fibers. Reproduced with permission [6]. Copyright 2002, Springer Nature; b spider MA dragline fibers under
different reeling speeds. Reproduced with permission [34]. Copyright 2015, Wiley-VCH. c Orientation function of the force-spun silk fibers in (b) increases with the reeling speed. Reproduced with
permission [8]. Copyright 2006, Elsevier. d Silkworm silk fibers under different reeling speeds.
Reproduced with permission [34]. Copyright 2015, Wiley-VCH. e the influence of the ordering
function of crystallites; the breaking stress of both BMCS fibers and NPDS fibers increases linearly
with an increase in the value of f . Both fibers can be fitted by the same curve, which suggests that
the strength of the two types of fibers is governed by similar structures, i.e. the hierarchical network
structure. f The influence of the density and correlation length of the crystallites was observed;
the breaking stress of both BMCS fibers increases exponentially with an increase in the density of
crystallites but decreases exponentially with the correlation length. e, f Reproduced with permission
[18]. Copyright 2016, Wiley-VCH
291
Fig. 6.26 Influence of Forced Reeling Speed on Mechanical Performance of Fibers and Orientation
Function. a Silkworm silk fibers spun by forced reeling can be compared to spider fibers. Reproduced with permission [6]. Copyright 2002, Springer Nature; b spider MA dragline fibers under
different reeling speeds. Reproduced with permission [34]. Copyright 2015, Wiley-VCH. c Orientation function of the force-spun silk fibers in (b) increases with the reeling speed. Reproduced with
permission [8]. Copyright 2006, Elsevier. d Silkworm silk fibers under different reeling speeds.
Reproduced with permission [34]. Copyright 2015, Wiley-VCH. e the influence of the ordering
function of crystallites; the breaking stress of both BMCS fibers and NPDS fibers increases linearly
with an increase in the value of f . Both fibers can be fitted by the same curve, which suggests that
the strength of the two types of fibers is governed by similar structures, i.e. the hierarchical network
structure. f The influence of the density and correlation length of the crystallites was observed;
the breaking stress of both BMCS fibers increases exponentially with an increase in the density of
crystallites but decreases exponentially with the correlation length. e, f Reproduced with permission
[18]. Copyright 2016, Wiley-VCH