This invention discloses a lightweight, low-dielectric constant continuous glass fiber reinforced polypropylene prepreg material suitable for 5G communication applications. The raw materials, in parts by weight, include: 200-600 parts polypropylene, 400-800 parts continuous glass fiber, 5-30 parts compatibilizer, 1-5 parts lubricant, 1-15 parts antioxidant, 1-15 parts light stabilizer, and 10-50 parts hollow glass microspheres. The invention also provides a method for preparing the lightweight, low-dielectric constant continuous glass fiber reinforced polypropylene prepreg, which includes: mixing the raw materials except for the continuous glass fibers, then conveying them via a loss-in-weight feeder to a high-torque twin-screw extruder for melting and mixing. The mixture is then conveyed through upper and lower parallel casting dies into an impregnation mold, where it is impregnated with the continuous glass fibers to obtain the lightweight, low-dielectric constant continuous glass fiber reinforced polypropylene prepreg material.
Country Code: CN
Application Number: CN202311743178.0
