The invention belongs to the technical field of paint diluents, and discloses a high-flash-point environment-friendly
diluent and a preparation method and application thereof. The
coating diluent is prepared from the following raw materials in parts by
mass: 40 to 65 parts of
tripropylene glycol ether, 20 to 30 parts of cyclohexanediol
monomethyl ether, 10 to 20 parts of tetrabutyl
orthosilicate, 5 to 25 parts of
dipropylene glycol monomethyl ether and 8 to 15 parts of acetic ester. According to the invention, the
hydrogen bond accepted
solvent is used so that the
hydrogen bond is more easily formed between the
diluent and resin in the
coating, the formation of the
hydrogen bond between the resin and resin molecules is avoided, the
viscosity of the
system can be effectively reduced, the efficient
dilution effect of the diluent on the
coating is realized, and the prepared diluent has a high
flash point which is greater than 68 DEG C, and the diluent belongs to a non-dangerous chemical. The diluent is fresh and non-pungent in smell, healthy, safe, harmless, green,
environmentally friendly, good in diluting power, wide in diluting range, capable of diluting conventional coatings in the field, high in film forming speed and compact in paint film.