High-strength PC/PET alloy and preparation method thereof
A high-strength, alloy technology, applied in the field of high-strength PC/PET alloy and its preparation, can solve the problems of reducing strength, poor compatibility between PC and PET, affecting mechanical properties, etc. Good processing performance
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Embodiment 1
[0021] A high-strength PC / PET alloy, the composition of which is: PC 55%, PET 25%, glycidyl methacrylate grafted polystyrene (PS-g-GMA) 5%, glass fiber 10% by mass percentage %, nano-carbon fiber 3%, polyethylene glycol (PEG) 1%, composite antioxidant 0.2%, modified ethylene bis fatty acid amide (TAF) 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-0.9dL / g; the glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface has been treated with a silane coupling agent; The carbon nanofibers described above are vapor-grown carbon nanofibers with a diameter of 50 to 200 nm, and the surface thereof has been modified by plasma, and the plasma is oxygen (O 2 ) plasma, the treatment method is: put the carbon nanofiber into the oxygen (O 2 ) in the pla...
Embodiment 2
[0024] A high-strength PC / PET alloy, the composition of which is: PC 55%, PET 20%, glycidyl methacrylate grafted polystyrene (PS-g-GMA) 2%, glass fiber 15% by mass percentage %, carbon nanofiber 5%, polyethylene glycol (PEG) 2%, composite antioxidant 0.2%, pentaerythritol stearate (PETS) 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-0.9dL / g; the glass fiber is an alkali-free chopped glass fiber with a diameter of 8-12 μm, a length of 3-6 mm, and an aspect ratio of 7-9, and its surface has been treated with a silane coupling agent; The carbon nanofibers described above are vapor-grown carbon nanofibers with a diameter of 50 to 200 nm, and the surface thereof has been modified by plasma, and the plasma is oxygen (O 2 ) plasma, the treatment method is: put the carbon nanofiber into the oxygen (O 2 ) in the plasma box, treat...
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