Quality identification method of FRP grille

A. Selection of raw materials
The raw materials used in fiberglass grille are resin, FRP fiber filament, filler calcium powder in a ratio of 1:1:1 configuration, high quality fiberglass grille selects high quality resin: unsaturated adjacent benzene resin 196, colorless and transparent. Low viscosity, low exothermic, low shrinkage, high speed curing, high speed compatibility, bright gloss. The fiberglass grille produced is smooth, with good gloss, high strength and a certain toughness. If the use of inferior resin will be completely opposite inferior resin turbidity, high viscosity, high heat, high shrinkage, a relatively slow curing, compatibility is poor, the production of glass fiber reinforced plastic grille many pores, easy to fracture, poor strength and toughness.
In the glass steel grille can enhance the toughness of the grille is the glass steel fiber filament wire. High quality glass steel fiber wire such as alkali free glass steel fiber wire strength is higher than steel wire has a certain toughness, chemical stability, good weather resistance, almost no water absorption in fire does not burn, its high strength can also be used as tire cord.
The filler of FRP grille is calcium powder or aluminum powder. The high quality filler is fine and white, flame retardant, and completely integrated with the resin. The board produced is beautiful in color, transparent and good in toughness. On the contrary, the inferior filler is rough and dark, not flame retardant, the produced board has no gloss, relatively crisp without toughness.
B. Comparison of the finished products
High quality FRP grille products appearance no obvious cracks, fewer pores, bright and pure color, good transparency, a certain toughness strength, good surface finish, long service life; and inferior FRP grille products appearance cracks, more pores, color is not pure gloss is not enough. Its service life is also shorter.
Although the FRP plate can not completely replace the steel plate, but it completely makes up for the conditions or fields that can not meet the steel plate. Fully reduce the burden of the steel plate ability burden, but also for people to provide another solution to solve the problem. Its appearance became a powerful supplement to the steel lattice plate [1].