Composite material of containing granule stuffing and polymer of thermotropic liquid crystal preparation method and application
A technology of particle filler and thermotropic liquid crystal, which is applied to the hybrid composite material containing spherical rigid particle filler and thermotropic liquid crystal polymer, the use of the above-mentioned material, the field of preparation of the above-mentioned material, can solve the problems of poor melt fluidity and the like, and achieve improvement Processability, excellent flow properties and dimensional stability, effect of reducing viscosity
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Embodiment 1
[0031] The raw material is nylon 6 (relative viscosity 3.2), hollow glass microspheres with a diameter of 3 μm and thermotropic liquid crystal polymer (PHB / HNA 73 / 27, Vectra A950, Ticona Celanese Company, USA) at a weight ratio of 84:5:11 Melting and blending on a Haake RC-90 twin-screw extruder, the temperature of each section from the feeding port to the die is set at 260-280-280-280. The extruded strands were cooled and granulated, and the rheological properties of the obtained pellets were tested on a Goettfert Rheograph 2001 capillary rheometer. The inner diameter of the capillary used was 1 mm and the aspect ratio was 30. The experimental temperature is 280°C, and the material is preheated for 4 minutes.
Embodiment 2
[0037] The weight ratio of nylon 6, glass microspheres and thermotropic liquid crystal polymer is 51 / 38 / 11, and other conditions are the same as in Example 1.
Embodiment 3
[0043] The weight ratio of nylon 6, glass microspheres and thermotropic liquid crystal polymer is 34:55:11, the specifications of hollow glass microspheres and thermotropic liquid crystal polymer are the same as in Example 1, and the preparation and testing methods are the same as in Example 1.
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