There are two basic ways to use silane coupling agents. Silane can be used for the surface treatment of the inorganic material before mixing the inorganic material with the resin, or the silane can be directly added to the organic resin.
Surface treatment of inorganic materials
Before inorganic materials are added to organic materials, there are two general methods that can be used to treat the surface of inorganic fillers.
Wet method: Mixing inorganic material slurry with silane coupling agent diluent. By mixing inorganic material slurry, a highly uniform and refined inorganic material surface treatment can be obtained.
Dry method: For example, a high-shear, high-speed mixer is used to disperse the inorganic material into the inorganic material by the silane coupling agent. Silanes are usually used pure or in concentrated liquid form.
Compared with the dry method, the wet method is more suitable for large-scale production, which can process a large amount of filling materials in a relatively short time and produce relatively little mixed waste. But this method is more difficult to get a uniform treatment.
Addition of organic materials
Compared with the surface treatment methods of inorganic materials, adding silane to organic materials is more widely used in industry because of its excellent processing efficiency, although it may be more difficult. There are two general methods.
Holistic mixed method
This method involves simple mixing of the silane coupling agent with a composition formula that is mixed with inorganic and organic materials.
Master batch method
In this method, the silane coupling agent is first added with a small amount of organic resin material to form a so-called master batch. Usually in the form of small balls or large particles. When producing synthetic materials, in small lumps or table-sized particles, when producing synthetic materials, the masterbatch can be easily added together with the organic material pellets.
Having introduced so much, I believe everyone has a certain understanding of silane coupling agents. If you want to know more about silane coupling agents, please contact Heshan KBORON New Material Co., Ltd.
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