. 2020 Nov 5;10:19152. doi: 10.1038/s41598-020-76153-8

Table 1.

Composition of the PU obtained.

Sample	Functionality ratio of PCL-diol/HDI/CO	Total NCO/OH ratio	fGO content (wt%)	Hard segment (HS) content^a
Sample	Functionality ratio of PCL-diol/HDI/CO	Total NCO/OH ratio	fGO content (wt%)	Weight (%)	Mol (%)
fGO–PU 0	1:4:1	2	0	40.6	82.6
fGO–PU 0.05	1:4:1	2	0.05	40.6	82.6
fGO–PU 0.10	1:4:1	2	0.10	40.6	82.6
fGO–PU 0.20	1:4:1	2	0.20	40.6	82.6

^aHard segment content was calculated using the equation below.

HS content = $\frac{W e i g h t o r m o l e s o f (H D I + C r o s s l i n k e r)}{W e i g h t o r m o l e s o f (H D I + C r o s s l i n k e r + P C L - d i o l)} \times 100 .$