Effect of Variation of Hard Segment Content and Graphene-Based Nanofiller Concentration on Morphological, Thermal, and Mechanical Properties of Polyurethane Nanocomposites

Table 6

Comparison of the nanofiller’s influence on PU hard and soft domains’ behavior.

Samples	Hard domain			Soft domain
	Crystallization rate	Degree of crystallinity	Crystallite size	Crystallization rate	Degree of crystallinity
PU20-RGO	↑	↓	↓	↑	↓
PU20-GNP	↓	↓	↓	—	↓
PU40-RGO	↓	↓	↓	<−>	↓
PU40-GNP	↑	<−>	↑	↑	<−>

Designation: (↑) increase parameter, (↓) decrease parameter, (<−>) parameter remains unchanged.