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nature : to enable the two materials or molecules coupling of material. In the field of polymer materials, coupled usually refers to enable filler polymer coupling or pro - and gender compounds, as part of its elements and inorganic fillers have better compatibility, and the other part with the polymer greater affinity, which can change the polymer and the interface between filler performance, improve their community the bonding between the surface. The coupling agent is used : silicon coupling agent, titanium coupling agent, organic coupling agent chromium, and aluminum zirconium coupling agents such as acid. In the middle of mixing rubber compounds are added, and can enhance filler interface bonding material. Coupling agent is a common type of low molecular weight compounds containing silicon, which was characterized with a silicon atom with two or more reactive groups, and with the hydrophilic surface of the inorganic filler chemical reaction to form Si-O-Si bond, the two substances can be coupled together, This is the origin of its name. According to the chemical composition of classification, such substances are silane, titanate, and phosphorus compounds such as chromium complexes.
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