The invention relates to environmental-friendly
diamond grinding liquid and a preparation process thereof. The environmental-friendly
diamond grinding liquid is characterized by being prepared from the following components in percent by weight: 0.1-20wt% of
grinding material, 60-99wt% of
solvent, 1-20wt% of emulsifying agent, 1-20wt% of
thickening agent and 1-20wt% of suspending agent, wherein thegrinding material contains at least one of
polycrystalline diamond micropowder, polycrystalline-like
diamond micropowder and monocrystalline diamond micropowder; the
solvent contains at least one ofnaphtha,
white oil, alkylbenzene and isoparaffin; the emulsifying agent contains at least one of an
alkylphenol-series emulsifying agent, a benzenesulfonic-acid-series emulsifying agent, a polyoxyethylene-
ether-series emulsifying agent and a
sorbitol-series emulsifying agent; the
thickening agent contains at least one of olefins
polymer and
silicon-
alkane polymer; the suspending agent contains atleast one of paraffin series,
epoxy resin, C9
petroleum resin and
butadiene styrene rubber SBS. The environmental-friendly
diamond grinding liquid is prepared by the steps of dissolving, stirring, dispersing,
coating, emulsifying, disaggregating, reverse treatment, cooling and converting. The environmental-friendly
diamond grinding liquid has the advantages of wide working-temperature range, longstability time and stable-controllable grinding speed and the like.