Core-shell-particle toughened modified PC/PET alloy material
A technology for toughening and modifying alloy materials, which is applied in the field of toughening and modifying PC/PET alloy materials by core-shell particles, can solve the problem that the mechanical properties of PC/PET alloy materials can not be expected to achieve the desired effect, and the improvement of toughness is limited. The problems of strength, stiffness, heat resistance and processability decrease, to achieve the effect of improving toughness and rigidity, low cost, good processability and heat resistance
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[0020] Example 1:
[0021] A core-shell particle toughening modified PC / PET alloy material, the components of which are proportioned by mass percentage as follows: PC 55%, PET 25%, styrene-acrylonitrile-glyceryl methacrylate (SAG) 3% , 10% ultrafine calcium carbonate particles with a particle size of 10-100nm, 5% ethylene-propylene-diene copolymer (EPDM), 0.5% methacrylic acid, 0.3% cumene hydrogen peroxide, antioxidant 1010 0.3 %, Pentaerythritol stearate (PETS) 0.9%. Wherein, the PC is bisphenol A type aromatic polycarbonate, and the weight average molecular weight is 20000~40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6~0.9dL / g.
[0022] Preparation method: (1), dry PC in a blast dryer at a temperature of 110 ℃ ~ 130 ℃ for 3 to 4 hours, and dry PET at 130 ℃ ~ 150 ℃ for 3 to 4 hours, and stand by; (2), It is 50 ℃~75 ℃ of high-speed mixers that the ultrafine calcium carbonate particles with particle diameters of 10~100nm are adde...
Example Embodiment
[0023] Example 2:
[0024] A core-shell particle toughening modified PC / PET alloy material, the components of which are proportioned by mass percentage: PC 55%, PET 30%, styrene-acrylonitrile-glyceryl methacrylate (SAG) 3% , 5% ultrafine calcium carbonate particles with a particle size of 10-100nm, 5% styrene-ethylene-butylene-styrene block copolymer (SEBS), 0.5% methacrylic acid, dicyclohexyl peroxydicarbonate 0.2%, the compound of antioxidant 1010 and antioxidant 168 0.3%, pentaerythritol stearate (PETS) 1%. Wherein, the PC is bisphenol A type aromatic polycarbonate, and the weight average molecular weight is 20000~40000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6~0.9dL / g.
[0025] Preparation method: (1), dry PC in a blast dryer at a temperature of 110 ℃ ~ 130 ℃ for 3 to 4 hours, and dry PET at 130 ℃ ~ 150 ℃ for 3 to 4 hours, and stand by; (2), It is 50 ℃~75 ℃ of high-speed mixers that the ultrafine calcium carbonate particles wi...
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