Crystallization of polymers
Degree of crystallinity

Crystallization of polymers

Section Title: Degree of crystallinity
Table Section Text: None

Polymer	D	ρc	ρa

Nylon (PA66 and PA6)	35–45	1.24	1.08

Polyoxymethylene (POM)	70–80	1.54	1.28

Polyethylene terephthalate (PET)	30–40	1.50	1.33

Polybutylene terephthalate (PBT)	40–50	–	–

Polytetrafluoroethylene (PTFE)	60–80	2.35	2.00

isotactic polypropylene	70–80	0.95	0.85

atactic polypropylene	~0	–	–

High-density polyethylene	70–80	1.0	0.85

Low-density polyethylene	45–55	1.0	0.85

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