Preparation and Characterization of Polyurethane Nanocomposites Using Vietnamese Montmorillonite Modified by Polyol Surfactants

Table 3

Storage modulus of PU, PU/PEO-MMT, and PU/PVA-MMT nanocomposites.

Sample	Loading content (Weight %)	Storage modulus (E′, MPa)	tan𝛿∗10
PU	0	3.12	1.39
PU/PEO-MMT	1	3.99	1.25
	3	4.28	1.10
	5	4.49	1.06
	7	4.21	1.16
PU/PVA-MMT	1	4.10	1.22
	3	4.85	1.14
	5	5.02	1.09
	7	4.88	1.12