Polysulfone/thermotropic liquid crystal polymer/rigid filled composite material and preparation method thereof
A technology of composite material and thermotropic liquid crystal, which is applied in the field of polysulfone/thermotropic liquid crystal polymer/rigid filler composite material and its preparation, can solve few problems, reduce viscosity, have broad application prospects, and improve processing performance Effect
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[0030] Example 1,
[0031] Put fully dried polysulfone (intrinsic viscosity of 0.54, 25℃, CHCl 3 ), thermotropic liquid crystal polymer (PHB / HNA73 / 27, Vectra A950, Ticona Celanese Company, USA) and hollow glass beads (GB2) with a diameter of 2μm in a weight ratio of 100 / 0 / 0, 80 / 20 / 0 , 80 / 20 / 9.7, 80 / 20 / 20.0 and 80 / 20 / 45.0 were melt blended on a HaakeRC-90 internal mixer, the mixing temperature was 305℃, and the rotor speed was 50rpm. After granulation and drying, the obtained pellets were preheated at 290°C for 6 minutes and then tested for rheological properties with a Rosand RH7 capillary rheometer. The capillary had an inner diameter of 1 mm and a length-to-diameter ratio of 16. The obtained viscosity data have been corrected for capillary end effect (Bagley correction), and the obtained material rheological curve is as follows figure 1 Shown.
Example Embodiment
[0035] Example 2:
[0036] Put fully dried polysulfone (intrinsic viscosity of 0.54, 25℃, CHCl 3 ), thermotropic liquid crystal polymer (PHB / HNA73 / 27, Vectra A950, Ticona Celanese Company, USA) and hollow glass beads (GB5) with a diameter of 5μm in a weight ratio of 100 / 0 / 0, 80 / 20 / 0, 80 / 20 / 7.4, 80 / 20 / 15.7 and 80 / 20 / 35.5 were melt blended on a Haake RC-90 internal mixer. The blending conditions and rheological performance test conditions are the same as in Example 1, and the rheological curve of the obtained material is as image 3 Shown.
Example Embodiment
[0040] Example 3:
[0041] Put fully dried polysulfone (intrinsic viscosity of 0.54, 25℃, CHCl 3 ), thermotropic liquid crystal polymer (PHB / HNA73 / 27, Vectra A950, Ticona Celanese Company, USA) and hollow glass beads (GB20) with a diameter of 20μm in a weight ratio of 100 / 0 / 0, 80 / 20 / 0, 80 / 20 / 6.5, 80 / 20 / 14.0 and 80 / 20 / 31.3 were melt blended on Haake RC-90 internal mixer. The blending conditions and rheological performance test conditions are the same as in Example 1. The resulting material rheological curve is as Figure 5 Shown.
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