Release agent is an additive used to alleviate the frictional resistance generated during the demolding process of rubber and plastic products, which can form an effective isolation film. Silicone release agent is one of the best, so what are the characteristics of silicone release agent?
1. Comparison between Organic Silicon Release Agents and Non Silicon Release Agents
Comparison of forms and dosage forms of release agents: Paraffin wax, fatty acids, etc. are usually used as release agents, and only pure sheep dosage forms are available; Correspondingly, silicone mold release agent has various forms and dosage forms, which can be used as bulk oil agent and various solutions or lotion, thus providing convenience for selection to adapt to different use requirements
Comparison of working temperatures for release agents:Due to the fact that the polymer skeleton of organosilicon polymers is composed of silicon— Composed of oxygen bonds, the bond energy of silicon oxygen bonds is high, and silicon materials have excellent heat resistance. The stable working temperature of silicon release agents exceeds the processing temperature range of almost all types of rubber and plastic (resin). So the application of organic silicon release agent will not cause problems such as thermal decomposition and carbonization of the release agent.
Comparison of peel strength of release agents:Organic silicon is a low surface energy material, so release agents made from silicone polymers have the lowest peel force for product release, making it the easiest to release products using silicone release agents.
Comparison of safety of release agents:In terms of surface energy of materials alone, both polymer bracelets and silicone polymers belong to the category of artificially synthesized materials with the lowest surface energy. However, after exceeding the allowable use temperature, organic fluoropolymers may decompose and release toxic substances; Organic silicon materials have good heat resistance and can withstand almost all types of rubber and plastic processing temperatures. Even if they decompose due to overheating, they are safe and non-toxic.
Comparison of service life of release agents:Due to the good heat resistance of organic silicon materials, they can withstand various processing temperatures of rubber products, especially non migratory organic silicon release agents based on silicone resin. Not only do they work at high temperatures, but the release agent components are stable and do not migrate, demonstrating a long service life of the release agent.
Organic silicone release agents are widely used in the processing of various types of rubber and plastics, including extrusion and injection molding processes, as well as in the processing of molded and laminated products. Organic silicone release agent is used in the processing of rubber and plastic products, which can reduce labor intensity, improve production efficiency, and enhance the quality of processed products.
2. Comparison of Various Organosilicon Release Agents
Different types of organic silicon release agents with different shapes have different usage methods and effects. The application method of silicone oil type and gas manure type release agents is the most convenient. As long as the release agent is simply brushed or sprayed on the surface of the mold, the next step of plastic product molding processing can be carried out, and the product release is simple; However, after several or limited demolding cycles, it is necessary to repeatedly apply the demolding agent. The application process of ointment type release agents is relatively more complicated than the simple coating of solution type release agents. However, the working film layer formed by ointment type release agents is thick and can be applied to molds with rough surfaces. At the same time, the number of sustainable and effective release cycles is relatively higher.
Compared with the solution silicone release agent, the aqueous lotion silicone release agent has the advantage of basically no pollution to the environment because it does not use solvent. However, compared with the difficulty of demoulding rubber and plastic parts, the stripping force of the water lotion type release agent is relatively larger, and the number of times of continuous demoulding is also less than that of the solution type.
