The invention discloses a
cardanol and saturated
cardanol based surfactant, a preparation method therefor and application of the
cardanol and saturated cardanol based surfactant. The method comprisesthe following steps: S1. alkalizing cardanol, and then, subjecting the alkalized cardanol to a reaction with
diamine, so as to obtain an intermediate 1; S2. placing cardanol in a reactor, and adding asulfonation
reagent for sulfonation, so as to obtain cardanol
sulfonic acid; S3. subjecting the cardanol
sulfonic acid to a reaction with
epoxy chloropropane under alkaline conditions, so as to obtain an intermediate 2; S4. subjecting the intermediate 1 and the intermediate 2 to mixing and heating, adding
sulfonic acid into the reacted product for sulfonation, and adding alkali liquor until neutral; and S5. subjecting the obtained product to separation and purification, thereby obtaining a cardanol surfactant containing trisiloxane and amino. Compared with the existing cardanol surfactants, the cardanol surfactant has the advantages that the capacity for lowering
surface tension is strengthened obviously and is only 15mN / m to 28mN / m, and thus, the cardanol surfactant can be extensively applied to the industrial fields of emulsifiers, humectants, solubilizers, detergents and the like.