Research Article

Simple Method for the Preparation of Composites Based on PA6 and Partially Exfoliated Graphite

Table 1

Characteristics of the sample prepared.

Sample codeInitial graphite concentration in CL (wt.-%)Remaining graphite concentration in CL (wt.-%) 𝑀 𝑤 ⋅ 1 0 − 3 a 𝑇 𝑔 (°C) 𝑥 𝑏 𝑐 (%) 𝑇 𝑐 (°C) 𝑇 𝑚 (°C)

PA6——305045196218
PA6(1.0)1.00.1295044195218
PA6(0.5)0.50.06284945196219
PA6(0.2)0.20.02305146196218

Glass transition temperature ( 𝑇 𝑔 ), melting temperature ( 𝑇 𝑚 ), crystallization temperature ( 𝑇 𝑐 ), and degree of crystallinity ( 𝑥 𝑐 ) were determined from the second scan.
a 𝑀 𝑤 was calculated by the following equation: [ 𝜂 ] = 0 , 5 1 ⋅ 1 0 − 3 𝑀 𝑤 0 . 7 4 [18] by measuring [η] in H2SO4 at 20°C.