Preparation method of toughness enhanced and reinforced polybutanediol terephthalate nanometer composition
A polybutylene terephthalate and nanocomposite material technology is applied in the field of toughening and reinforcing PBT nanocomposite materials, and the preparation field of toughening and reinforcing polybutylene terephthalate nanocomposite materials, which can solve the impact of impact Poor toughness, unfavorable injection molding of large or fine products, decreased flow properties, etc., to achieve the effect of improving toughness and strength, broad application and industrialization prospects, surface finish and heat resistance.
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[0012] The following examples are to further illustrate the present invention, but not to limit the scope of the present invention.
[0013] The formula of embodiment is shown in Table 1, and in 100 parts of polybutylene terephthalates, the inorganic nano-material of formula amount listed in Table 1, reaction compatibilizer, antioxidant and lubricant, mix on high-speed mixer earlier Evenly, the speed of the high-speed mixer is 3000 rpm, and then extruded together with the long glass fibers listed in Table 1 in an ordinary twin-screw extruder to make pellets, the screw temperature is 210 ° C in the feeding section, compression section 230°C, homogenization section 250°C and die temperature 240°C, the speed is 320 rpm, the residence time of the material in the screw is 2 minutes, the extruded material is cooled by a water-cooled cooling tank, and then passed through a pelletizer Cut into pellets to obtain pellets, and dry in an oven at 120° C. for 24 hours to obtain a toughened ...
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