Preparation of High Modulus Poly(Ethylene Terephthalate): Influence of Molecular Weight, Extrusion, and Drawing Parameters

Table 4

Crystallinity of as-spun PET bristles extruded at 20 rpm and different take-up speeds.

	Crystallinity
	@Take-up speed
	10 m·min^−1	20 m·min^−1
() @ Recrystallization peak	24.9%	25.6%
() @ Melt peak	29.4%	28.6%
()−()	4.5%	3.0%