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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.

Inactive Publication Date: 2007-01-24
SICHUAN UNIV
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Problems solved by technology

[0009] Based on the work of predecessors, the present invention aims at the problem that it is difficult to form nanoscale dispersion of nanoparticles in the preparation of nanoparticle / polymer composite materials by melt blending method, and proposes a new method for preparing nanoparticle / polymer composite materials—— Gentle mixing method, that is, the preparation of composite materials with native nanoscale uniform dispersion of nanoparticles in polymers

Method used

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  • Preparing nano particle/thermoplastic polymer composite material by flexible method
  • Preparing nano particle/thermoplastic polymer composite material by flexible method
  • Preparing nano particle/thermoplastic polymer composite material by flexible method

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Embodiment 1～9

[0043] (1) Dissolve the dispersant in water at 1-95°C and make it transparent for later use. The nanoparticles are placed in a beaker, a certain amount of distilled water is added, and the obtained solution is dispersed in an ultrasonic wave for 1-100 minutes to prepare a nanoparticle pre-solution. Add the nanoparticle pre-solution into the dispersant solution, and stir continuously for 1-100 min.

[0044] (2) Add the stirred and dispersed solution into a self-developed pressure-type continuous dispersion secondary feeding device for continuous ultrasonic dispersion to obtain a uniform dispersed suspension for use. .

[0045] (3) Connect the secondary feeding device with the twin-screw extruder, and feed a certain pressure of inert gas into the secondary feeding device.

[0046] (4) Add the thermoplastic polymer into the hopper of the twin-screw extruder, adjust the screw speed to 10-600rpm, the feeding speed to 5-200rpm, and start the machine. The internal pressure of the ...

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Abstract

The present invention is new process and apparatus for preparing nanometer particle / thermoplastic polymer composite material. The preparation process includes compounding solution with deionized water and polymer dispersant, adding nanometer particle into the solution and ultrasonic dispersing to form homogeneous suspension, injecting the suspension with some specific apparatus into polymer melt, and extruding the mixture to obtain nanometer particle / thermoplastic polymer composite material. The preparation process is not limited by the polarity of the polymer.

Description

1. Technical field [0001] The present invention relates to a new method of preparing nanoparticle / thermoplastic polymer (TP) composites, using a gentle method of dispersing nanoparticles into thermoplastic polymers to prepare polymer / nanocomposites. 2. Background technology [0002] Nanomaterials are a new scientific field that has attracted much attention in recent years, and are considered to be one of the new materials that will be developed in the 21st century. Due to the small size of nanoparticles and many non-pairing atoms on the surface, they have strong binding ability to polymers and have special effects on the physical and chemical properties of polymer matrix [He Peng, Zhao Anchi. Polymer Bulletin, 2002, 1:74 ~78]. The properties of nanocomposites depend to a large extent on the dispersion state of the particles in the matrix, and the dispersion state is closely related to the preparation method of the material [Tong Yuqing, Wu Youping, Lin Gui. Synthetic Rubber...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08J3/21B29C47/40
Inventor 杨鸣波于润泽刘正英冯建民
Owner SICHUAN UNIV
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