Modified composite surfactant with excellent interfacial activity

The invention discloses a modified composite surfactant with excellent interfacial activity. The modified composite surfactant is prepared from the following raw materials: modified sulfonate surfactant, organosilicon surfactant, nonylphenol polyoxyethylene ether, octaphenyl polyoxyethyiene, iso-tridecanol fatty alcohol polyoxyethylene ether, aminoethyl and aminopropyl silicone oil, dodecyl betaine, hexadecyl betaine, triethanolamine, ethylene diamine tetraacetic acid disodium, sodium dodecyl benzene sulfonate, sodium oxalate, lauryl sodium sulfate, hexadecyl trimethyl ammonium bromide, sodium di(2-ethyl-hexyl)sulfosuccinate, tween 40, polysorbate 40, alpha-sodium olefinsulfonate, dodecanoxy hydroxypropyl betaine, dodecylbenzenesulfonate triethanolamine salt, tetraalkyl ammonium chloride, and ethanol. The modified composite surfactant with the excellent interfacial activity disclosed by the invention has excellent interfacial activity, low surface tension, excellent in wettability, defoaming property and foam