WT4”BZ]Synthesis of stabilizing agents-methanol-epoxy propane(PO)-ethylene oxide(EO), glycerine-PO-EO, diglycerol-PO-EO, sorbierite-PO-EO, hexahydroxymethylmelamine-PO-EO additives was described and effects of number and molecular weight of branched chains, molar ratio of PO and EO, crosslink density of stabilizing agents on fluidity in coal-oil mixture (COM) were discussed in this article When PO∶EO is equal to 2, molecular weight above 5000, the stabilizing agent having suitable crosslink density with more branched chains gives better fluidity in COM For hexahydroxymethyl melamine-PO-EO additive, when condensation of hexahydroxymethyl melamine in performed at pH=4 5 for 10min, copolymerization with PO and EO, and cross linking of copolymer by TDI to get polymer with MW 2 times higher than the copolymer, the maximum coal loading of 66% in COM can be
