Polyarylester composition
A composition and technology of polyarylate, applied in the field of engineering plastics, can solve the problems of polyarylate not being applicable, poor compatibility, etc., and achieve the effects of improving compatibility and fluidity, reducing impact, and improving friction and wear performance
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Embodiment 1
[0036] The raw materials used include: PAR, U-8500, Japan Unica Company. Thermoplastic polyimide, PEI, ULTEM1000, SABIC Basic Chemicals.
[0037] Hydroxyl-terminated hyperbranched polyamide, self-made, its preparation method is to dissolve succinic anhydride in N,N-dimethylacetamide, add diethanolamine under the protection of ice bath and nitrogen, and wait until the acid value of the system is the initial acid value 1 / 2 of the time to stop the reaction. Add p-toluenesulfonic acid to it, distill under reduced pressure, extract the crude product with a mixture of acetone and ether in a certain proportion, take the insoluble matter in the lower layer, and dry it in vacuum to obtain a hydroxyl-terminated hyperbranched polyamide.
[0038] 10kgPEI, 90kgPAR, 0.3kg hydroxyl-terminated hyperbranched polyamide were mixed in a high-speed mixer for 3-5min, and then dried in a 150°C drying oven for 4 hours.
[0039] The above mixture was extruded and granulated in a twin-screw extruder ...
Embodiment 2
[0041] The raw materials used include: PAR, U-8000, Japan Unica Company. Thermoplastic polyimide, PEI, ULTEM1010, SABIC Basic Chemicals. Carboxyl-terminated hyperbranched polyamide, self-made, the preparation method is to use methyl acrylate and diethylenetriamine as raw materials, methanol as solvent, adopt monomer self-condensation method to synthesize amino-terminated hyperbranched polyamide, and carry out amino-terminated polyamide through sodium acrylate Modification and synthesis of carboxyl-terminated hyperbranched polyamide.
[0042] 70kgPEI, 30kgPAR, 0.5kg carboxyl-terminated hyperbranched polyamide were mixed in a high-speed mixer for 3-5min, and then dried in a 150°C drying oven for 4 hours.
[0043] The above mixture was extruded and granulated in a twin-screw extruder with an aspect ratio of 65, and the temperature of each stage was set at 320°C, 345°C, 355°C, 360°C, 365°C, 365°C, and 360°C. Vacuum degree -0.08MPa.
Embodiment 3
[0045] The raw materials used include: PAR, U-100, Japan Unica Company. Thermoplastic polyimide, XCY-P100E, Changsha New Material Industry Research Institute Co., Ltd. Amino-terminated hyperbranched polyamide, commercially available.
[0046] 30kg of thermoplastic polyimide, 70kg of PAR, and 1.0kg of amino-terminated hyperbranched polyamide were mixed in a high-speed mixer for 3-5 minutes, and then dried in a 150°C drying oven for 4 hours.
[0047] The above mixture was extruded and granulated in a twin-screw extruder with an aspect ratio of 40, and the temperature of each stage was set at 320°C, 345°C, 355°C, 360°C, 365°C, 365°C, and 360°C. Vacuum degree -0.08MPa.
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