Preparing nano particle/thermoplastic polymer composite material by flexible method
A nanoparticle and composite material technology, which is applied in the field of preparing nanoparticle/thermoplastic polymer composite materials, can solve the problem that nanoparticles are difficult to form nanoscale dispersion, and achieve the effect of low equipment requirements, easy popularization and application, and low investment.
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[0042] Examples 1-9:
[0043] (1) Dissolve the dispersant in water at 1 to 95°C, and make it transparent for use. Place the nanoparticles in a beaker, add a certain amount of distilled water, and disperse the resulting solution in ultrasonic waves for 1-100 minutes to prepare a nanoparticle pre-solution. Add the nanoparticle pre-solution to the dispersant solution and continuously stir for 1-100 min.
[0044] (2) Add the stirred and dispersed solution to a self-developed pressure type continuous dispersion secondary feeding device for continuous ultrasonic dispersion to obtain a uniform dispersion suspension for use. .
[0045] (3) Connect the secondary feeding device with the twin-screw extruder, and inject a certain pressure of inert gas into the secondary feeding device.
[0046] (4) Put the thermoplastic polymer into the hopper of the twin-screw extruder, adjust the screw speed of 10 to 600 rpm, and the feed speed of 5 to 200 rpm, and start the machine. The pressure in the sec...
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