A curing agent for an unsaturated polyester resin is a peroxide which is caused by an accelerator or other external conditions to initiate crosslinking of the resin, and is also referred to as an initiator or a catalyst. The term "catalyst" as used herein is different from the "catalyst" in the conventional sense.
In the traditional sense, the term "catalyst" is used to help the reactants, while they promote the reaction, they are not consumed by themselves. In the UPR curing reaction, the peroxide must change its structure before it "catalyzes" the reaction. Therefore, a suitable name for the peroxide used for UPR curing should be called "starter". Or "initiator".
When it comes to peroxides, the two concepts we need to understand are the active oxygen content and the critical temperature. The "active oxygen" or "reactive oxygen content" is a concept that is closely related to the curing agent and is often misunderstood.
QuanZhou Neweco High Polymer Material Co.,Ltd.
Neweco is one of the leading unsaturated polyester resin manufacturers and suppliers,widely used in automobiles, ships, rail transit, wind power generation, pipe cans, heat and corrosion protection, building materials, stone repair, sanitary ware, artificial stone and other industries. Suitable for hand lay-up, spray, pultrusion, winding, molding, vacuum introduction / RTM, casting and other molding processes. Neweco Resin is committed to excellence and focuses on the application of composite materials to provide customers with comprehensive solutions.