博文

目前显示的是 十月, 2021的博文

How to identify the raw materials of FRP pultrusion profiles

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The raw material of FRP pultrusion profiles is generally resin and FRP fiber, and then it is a colorless and transparent material, which should have low viscosity and low heat release performance. Some of the characteristics of FRP pultrusion profiles are indispensable. The FRP profiles produced are smooth and smooth, with good gloss, high strength, and toughness. If the use of inferior resin will be completely opposite inferior resin turbidities, high viscosity, high heat release, high shrinkage, relatively slow curing, compatibility is poor, the production of FRP profiles with pores, easy to fracture, poor strength and toughness. The second is the comparison of finished products. Good FRP profile products have no obvious cracks, fewer pores, bright and pure color, good transparency, a certain toughness and strength, good surface finish, long service life; The appearance of inferior FRP products has cracks, more pores, color impure gloss is not enough. Its service life is also short. ...

The Differences between Fiberglass and Carbon Fiber

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  Fiberglass : It is a kind of inorganic nonmetallic material with excellent properties. Glass balls or waste glass as raw materials after high melting, drawing, winding, weaving, and other processes, the final formation of glass fiber, glass fiber diameter from a few microns to more than 20 meters between microns, equivalent to a hair 1/5 to 1/10 diameter, a bundle of fiber are composed of hundreds of monofilament. Characteristics of glass fiber: It is generally considered that glass is a brittle hard object and is not suitable for structural use. However, if it is drawn into silk, the strength will be greatly increased and has softness, so it can become an excellent structural material after changing shape with resin. As the diameter of glass fiber decreases, its strength increases. These characteristics make the use of glass fiber far more extensive than other types of fiber. Glass fiber has the following characteristics: High tensile strength; High elastic coefficient; High imp...