The difference between FRP products and BMC molded products
FRP--glass reinforced plastic, a plastic, is reinforced with glass fiber;
The unsaturated polyester resin is a thermosetting resin. It is a viscous liquid resin prepared by mixing an unsaturated dibasic acid, a saturated polyol, a polybasic acid polymer and a monomer containing no bond. When the curing agent and the accelerator are added, the crosslinking is cured at room temperature or only the curing agent is added, and after heating or ultraviolet irradiation, it is cured into an insoluble and infusible plastic.
The resin is fully impregnated with the glass fiber material before curing, and is regularly laminated or randomly mixed to become a glass fiber reinforced composite material-FRP, commonly known as glass unsaturated polyester resin.
According to the structure of the unsaturated polyester resin, it can be classified into o-benzene type, meta-benzene type, p-benzene type, bisphenol A type, vinyl ester type, etc.;
According to its performance, it can be divided into general type, anti-corrosion type, self-extinguishing type, heat-resistant type, low shrinkage type, etc.;
According to its main use, it can be divided into two categories: glass fiber reinforced plastic (FRP) resin and non-glass reinforced plastic resin. The so-called glass steel product refers to various products made of glass fiber and its products as reinforcing materials, also known as glass fiber reinforced. Plastic (referred to as FRP or FRP); non-glass reinforced plastic products are various products made by mixing resin and inorganic filler or used alone, also known as non-reinforced FRP products.
The BMC (DMC) material is an abbreviation for Bulk (Dough) molding compounds, that is, a bulk molding compound. It is often referred to as unsaturated polyester bulk molding compound in China. The main raw material is a dough-like prepreg which is sufficiently mixed with GF (short-cut glass fiber), UP (unsaturated resin), MD (filler), and various additives. DMC materials were first applied in the former West Germany and the United Kingdom in the 1960s, and then in the United States and Japan in the 1970s and 1980s. Because BMC bulk molding compound has excellent electrical properties, mechanical properties, heat resistance, chemical resistance, and adapt to various molding processes, it can meet the performance requirements of various products, so it is more and more popular by users. favorite.
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.