The rheological properties of organosilicon pressure-sensitive adhesives directly determine their coating compatibility and bonding reliability, and formulation design is the key to achieving precise control. The optimization of the molecular structure of the base resin is the first step, and the application of high vinyl content silicone oil can significantly increase the chain entanglement density. When the vinyl content increases from 0.15% to 0.3%, the viscosity can increase from 5000 cP to 12000 cP, providing sufficient cohesion for bonding. The synergistic effect of MQ silicone resin is also crucial, with an addition of 20%-30% can increase the storage modulus by 3 times and the 180° peel strength doubles simultaneously. The scientific matching of the thickener system is another core for optimizing rheological properties. A quality ratio of 1:1 of terpene resin and silicone oil can increase the rheological index from 1.2 to 2.5, effectively improving the vertical tape thickness; after the gas-phase nano SiO₂ is treated with silane, a 3% addition can increase the composite viscosity from 8000 cP to 20000 cP, while alleviating the shear thinning phenomenon. The precise control of crosslinking density ensures the rheological stability, and when the platinum catalyst concentration is increased to 150 ppm, the crosslinking density doubles, and the viscosity fluctuation range narrows to ±5%. 
It is important to note the significance of the balance of the formulation, excessive thickener (more than 35%) will cause the adhesive to become brittle. It is necessary to monitor the tanδ value through DMA to maintain it within the 0.4-0.6 viscoelastic balance range to achieve the coordinated optimization of rheological properties and bonding performance.