Experimental Study for Influence of Surfactants Chemical Microstructures on Wetting Effect about Coal Dust in Tongchuan Mining Area

Table 9

Linear correlation analysis of wettability and carbon structure parameters of surfactants.

		Contact angle	Aromatic carbon	Carbonyl carbon	Aromatic ring carbon	Unprotonated carbon	Protonated carbon	Alkyl substituted aromatic carbon	Bridged aromatic carbon	Aliphatic carbon	Aliphatic methyl/arylmethyl	Quaternary carbon/methylene	Oxygen-linked aliphatic carbon
Contact angle	Pearson correlation	1	−0.943	0.619	−0.993	−0.985	−0.616	0.156	−0.977	0.943	−0.697	0.095	0.483
	Sig. (2-tailed)		0.057	0.381	0.007	0.015	0.384	0.844	0.023	0.057	0.303	0.905	0.517
	N	4	4	4	4	4	4	4	4	4	4	4	4