Flame-resistant and uvioresistant polyester composite material and method for preparing same
A polyester composite material and composite material technology, applied in the field of flame-retardant and anti-ultraviolet polyester composite materials and their preparation, can solve problems such as flammability hazards
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Embodiment 1
[0015] Add zinc oxide slurry accounting for 50% by weight of the reaction mixture in the esterification process stage of producing PET, wherein zinc oxide accounts for 5% by weight of the slurry, and the particle size is approximately normal between 1nm and 50nm distribution, the solvent is ethylene glycol. At the same time, 5% by weight of decabromodiphenyl ether was added to the reaction mixture. The esterification reaction temperature is 200-220° C., the reaction pressure is 0.1-0.25 MPa, and the reaction time is 1-2 hours. The product of the above-mentioned esterification process is then subjected to a polycondensation process to obtain a flame-retardant and UV-resistant PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 200-240°C, the reaction pressure is 100,000-500Pa, and the reaction time is 10-30 minutes; the polycondensation reaction temperature in the high vacuum stage is 250-275°C, the reaction pressure is 500-...
Embodiment 2
[0017] In the esterification process stage of PET production, 30% by weight of silicon dioxide slurry is added to the reaction mixture. The silicon dioxide in the slurry accounts for 30% by weight of the slurry, and the particle size is between 5nm and 10um. The distribution is approximately normal, and the solvent is ethylene glycol. At the same time, 7% by weight of the reaction mixture was added as a flame retardant 2-carboxyethylphenyl phosphoric acid. Wherein the esterification reaction temperature is 220-240° C., the reaction pressure is 0.2-0.6 MPa, and the reaction time is 1.5-2 hours. The product of the above-mentioned esterification process is then subjected to a polycondensation process to obtain a flame-retardant and UV-resistant PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 230-250°C, the reaction pressure is 100,000-500Pa, the reaction time is 20-30 minutes, the polycondensation reaction temperature in t...
Embodiment 3
[0019] In the esterification process stage of PET production, zirconium dioxide slurry accounting for 10% by weight of the reaction mixture is added, wherein zirconium dioxide accounts for 90wt% of the total amount of additives, and the particle size is approximately positive between 5nm and 10um. State distribution, the solvent is ethylene glycol. Simultaneously, 10% antimony trioxide was added based on the weight percentage of the reaction mixture. Wherein the esterification reaction temperature is 220-240° C., the reaction pressure is 0.2-0.25 MPa, and the reaction time is 1.5-2 hours. The product of the above-mentioned esterification process is then subjected to a polycondensation process to obtain a flame-retardant and UV-resistant PET composite material. Among them, the polycondensation reaction temperature in the low vacuum stage is 230-250°C, the reaction pressure is 100,000-500Pa, the reaction time is 20-30 minutes, the polycondensation reaction temperature in the hi...
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