Table 4.

Thermal properties of PLA-based composites as a function of different GO/PEG.

Samples	${\mathit{T}}_{\mathbf{m}1}$ (°C)	${\mathit{T}}_{\mathbf{m}2}$ (°C)	${\mathit{T}}_{\mathbf{cc}}$ (°C)	${\mathit{T}}_{\mathbf{c}}$ (°C)	$\mathsf{\Delta }{\mathit{H}}_{\mathbf{m}}$ (J/g)	$\mathsf{\Delta }{\mathit{H}}_{\mathbf{cc}}$ (J/g)	$\mathsf{\Delta }{\mathit{H}}_{\mathbf{c}}$ (J/g)	${\mathit{X}}_{\mathbf{c}}$ (%)
PEG-4000	58.2	61.9	---	39.1	154.1	---	149.6	72.3
PEG-20,000	---	68.3	---	44.8	157.3	---	153.5	73.9
A	161.3	168.5	110.1	---	33.7	28.5	9.78	5.5
B	164.7	171.6	---	99.6	29.8	---	26.3	31.8
C	---	169.4	100.3	103.2	34.1	15.9	14.6	19.4
D	163.8	170.1	---	102.7	30.5	---	15.3	32.6
F	164.2	170.2	---	102.9	36.8	---	24.3	39.3
G	163.9	172.7	---	104.4	28.7	---	13.5	30.6
I	163.1	170.3	---	108.3	25.4	---	11.8	27.1

T_m1, T_m2, and T_cc represent melting temperature 1, melting temperature 2, and cooling crystallization temperature of second DSC scan, respectively. The melting enthalpy of 100% crystalline PEG and PLA employ 93.7 J/g [39] and 213.0 J/g [41].