Organic silicon thixotropic agent, organic silicon composition and preparation method and application of organic silicon thixotropic agent and organic silicon composition

The invention belongs to the technical field of organic silicon materials, and particularly relates to an organic silicon thixotropic agent, an organic silicon composition and a preparation method and application of the organic silicon thixotropic agent. The organic silicon thixotropic agent disclosed by the invention has the following structure, wherein R1, R2 and R3 are groups connected with silicon atoms and are independently selected from one of C1-C4 alkyl, phenyl and hydrogen atoms, and at least one of R1, R2 and R3 is phenyl; r4 and R5 are independently selected from alkyl groups of C2-C10; r6, R6 ', R7 and R7' are independently selected from one of C1-C4 alkyl groups, phenyl groups, vinyl groups and hydrogen atoms, a and b are independently selected from any integer of 0-5 and are not 0 at the same time, m and n are independently selected from any integer of 0-4 and are not 0, hydroxyl at the tail end of the organic silicon thixotropic agent can form a recoverable three-dimensional hydrogen bond netwo