Preparation method of modified siloxane emulsion and hair conditioner containing modified siloxane emulsion

The invention relates to the technical field of daily chemicals, in particular to a preparation method of a modified siloxane emulsion and a hair conditioner containing the modified siloxane emulsion. The invention relates to a preparation method of a modified siloxane emulsion, which comprises the following steps: by taking a cationic surfactant, a nonionic surfactant and a polydimethylsiloxane mixed ring body as raw materials, carrying out a catalytic ring-opening reaction in the presence of a catalyst under microwave radiation, and carrying out a modification reaction with a coupling agent, thereby finally obtaining the hydrophobic modified siloxane emulsion. Then, the obtained modified siloxane emulsion is added into the hair conditioner, so that the scalp can be well regulated, the grease secretion amount of scalp pores and the grease absorption amount of the scalp can better reach an ideal balance, the hair is more fresh and cool, and the hair conditioner is more suitable for people with oily hair quali