Compound modified expanded perlite-carbonized foamed phenolic resin-based heat-insulation material for forklift engine exhaust tube and preparation method thereof
A technology of expanded perlite and phenolic resin, applied in the field of thermal insulation materials for exhaust pipes, can solve the problems of limited elongation, short service life, high production cost, and achieve compact structure, good bonding ability, uniform and tight material structure. effect
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[0011] The heat insulating material of this embodiment is made of the following raw materials in parts by weight: 1.5 carbonyl iron powder, 1.5 nanometer tin dioxide, 8 silica sol with a solid content of 25%, 10 400 mesh expanded perlite micropowder, 4 aluminum powder, and phenolic resin 35. Aluminum tripolyphosphate 1.5, mesophase carbon microspheres 4, water glass with a Baume degree of 40° 16, sodium dodecylsulfonate 0.1, sodium bicarbonate 0.2, and water 25.
[0012] The preparation method of the composite modified expanded perlite-carbonized foaming phenolic resin-based heat insulating material for the exhaust pipe of a forklift engine is as follows:
[0013] (1) Preparation of modified phenolic resin foam micropowder: put the phenolic resin into the organic solvent and dissolve it completely, then put the mesophase carbon microspheres and carbonyl iron powder into the solution, stir well to disperse evenly in the solution , followed by foaming the mixed material to make ...
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