Will FRP Dust Explode?

Glass fiber reinforced plastic (FRP) is also called GFRP, that is, fiber-reinforced plastic, which generally refers to glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix. Reinforced plastics using glass fiber or its products as reinforcing materials are called glass fiber reinforced plastics or glass steel. FRP generates a large amount of dust during the production process, and the accumulation of excessive dust has the risk of explosion. Will the FRP dust explode?

There are generally three conditions for dust explosion: first, flammable dust is suspended in the air at an appropriate concentration to form a dust cloud often called; second, there is sufficient air and oxidant; third, there is a fire source or strong vibration and friction. In general, explosive dusts are: metals (such as magnesium powder, aluminum powder); coal; food (such as wheat, starch); feed (such as blood meal, fish meal); agricultural and sideline products (such as cotton, tobacco); forest products (such as Paper flour, wood flour); synthetic materials (such as plastics, dyes).

There are materials such as plastic and fuel in FRP materials. When FRP dust aggregates to a certain concentration, it will explode when it encounters open flames or strong friction. Therefore, the corresponding dust reduction work should be done in the production plant.

Environmental protection departments require FRP companies to organize the discharge of dust generated by cutting and grinding, and some areas have proposed explosion-proof requirements for cutting and grinding workshops.


Post time: Jan-13-2020
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