The invention discloses a preparation method for a
ceramic precursor binder allowed to be cured at the
room temperature. The preparation method comprises the following steps: firstly, adding metallic
sodium and methylbenzene in a three-mouth flask with a condensation flux device and a mechanical stirring device; heating the mixture to 80-120DEG C under the protection of
inert gases, and dropping methyl dichloresilane; after the dropping is finished, preserving the heat at the temperature of 80-120DEG C for 4-12 hours, filtering, distilling and removing an
organic solvent to obtain liquid
polysilane; secondly, performing heat preservation on the liquid
polysilane and 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl cyclotetrasiloxane at the temperature of 80-160DEG C under the protection of the
inert gases for 1-6 hours to obtain a liquid
siloxane polycarbonate precursor; thirdly, uniformly mixing the liquid
siloxane polycarbonate precursor with
boron carbide powder, glass
powder and a compound containing
platinum to obtain the
ceramic precursor binder. By using the preparation method disclosed by the invention, the
ceramic precursor binder which can be cured at the
room temperature and has excellent
temperature resistance and binding performance can be prepared.