Analysis of related properties of thermosetting reinforced plastics

The thermosetting reinforced plastic is composed of a resin, a reinforcing material, an auxiliary agent and the like. Among them, the resin is used as a binder, which requires good fluidity, suitable curing speed, few by-products, easy adjustment of viscosity and good mutual solubility, and needs to meet the requirements of plastic parts and forming. The reinforcing material acts as a skeleton, and its variety and specifications are mainly made of glass fiber, and the general content is 60% and the length is 15-20 mm. Adjuvants include viscosity-adjusting diluents (to improve the bonding of glass fibers and resins), glass fiber surface treatment agents to adjust the resin-fiber interface state, to improve fluidity, reduce shrinkage, improve gloss and resistance. Fillers and coloring pigments for grinding and the like. Due to the choice of resin, glass fiber specifications (length, diameter, alkali-free or alkali-containing, count, number of strands, twisted or flawless), surface treatment agent, glass fiber and resin mixing process (premixed or Prepreg, plastic ratio, etc., their performance is also different).

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