What is the difference between liquid silicone and silicone resin?

Liquid silicone is a highly active adsorption material. Compared with solid high-temperature vulcanized silicone rubber, it is a liquid glue with good fluidity, fast vulcanization, safer and environmentally friendly, and can fully meet food-grade requirements. Liquid silicone has excellent transparency, tear strength, resilience, yellowing resistance, thermal stability, water resistance, good air permeability, heat aging resistance and weather resistance. At the same time, it has moderate viscosity and is easy to operate. The product has high transparency and can be Check whether there are defects such as bubbles in the casting material in the mold, the linear shrinkage is ≤0.1%, and the size of the replica product is precise. Silicone resin is a thermosetting polysiloxane polymer with a highly cross-linked structure. It has good electrical insulation properties, temperature resistance and waterproof effects. And its weather resistance is better than ordinary organic resins. Therefore, it is an ideal material for the coating of temperature-resistant, heat-resistant and moisture-proof treated protective surfaces. So what is the specific difference between liquid silicone and silicone?
Liquid silica gel is a linear structure of molecular reinforcement and then vulcanized and cross-linked into a three-dimensional structure. When it contains trace amounts of terminal hydroxyl groups, the anti-aging performance is not good enough. The light transmittance reinforced by white carbon black is poorer, while the light transmittance reinforced by silicone resin is better; The mechanical properties are generally better than silicone resin; and it has the advantages of high elasticity, softness, good heat and weather resistance, and low internal stress. The disadvantage is that the gaps between molecular chains are large, breathable, oxygen permeable, and moisture permeable. Liquid silicone can withstand temperatures of -60-350 degrees. Silicone resin is a three-dimensional structure of molecules cross-linked into a larger three-dimensional structure. When it contains a trace amount of terminal hydroxyl groups, its anti-aging is much better than that of liquid silicone. It has high hardness, good light transmittance, air and moisture permeability, low oxygen permeability, and its mechanical properties are generally worse than silicone rubber. Silicone resin has outstanding weather resistance, which is unmatched by any organic resin. Even under strong ultraviolet rays, silicone resin is resistant to yellowing.

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