Preparation, Characterization, and Properties of Polyurethane-Grafted Multiwalled Carbon Nanotubes and Derived Polyurethane Nanocomposites

Table 2

Composition and physical properties of PUT and PUT/NT-PUT-8 composite films.

Specimens	Composition (wt%) PUT/NT-PUT-8	𝑇𝑔 (°C); (soft segment)	Storage modulus; at −40°C (GPa)	Tensile strength (KPa)	Elongation at break (%)
PUT	100/0	−26	0.918	180	195
PUT/NT-PUT-8-1	100/1	−24	1.14	286	192
PUT/NT-PUT-8-5	100/5	−19	1.22	344	173
PUT/NT-PUT-8-10	100/10	−17	1.47	675	116