A kind of preparation method of low-density flame-retardant polyethylene plastic
A flame-retardant polyethylene and low-density technology, which is applied in the field of preparation of low-density flame-retardant polyethylene plastics, can solve the problems of reducing the mechanical properties of polyethylene and the easy burning of polyethylene, and achieve enhanced anti-aging performance, reduced toxicity, The preparation method is simple and environmentally friendly
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Embodiment 1
[0021] A method for preparing environmentally friendly low-density flame-retardant polyethylene plastics, the preparation steps are as follows:
[0022] (1) Mix pentaerythritol and phosphoric acid at a molar ratio of 1:4.1, stir at room temperature for 30 minutes, heat to 90°C, and react for 2 hours to form a mixture of pentaerythritol and phosphate;
[0023] (2) After adding montmorillonite k10 of 0.5 times the amount of pentaerythritol to the pentaerythritol phosphate mixture, stirring at room temperature for 24 hours, then heating to 100° C. and maintaining for 1 hour, filtering to prepare pentaerythritol phosphate montmorillonite;
[0024] (3) After dispersing the pentaerythritol phosphate montmorillonite in 30% choline chloride-urea eutectic reagent-water mixture, add 1.05 times the amount of melamine of pentaerythritol, and then raise the temperature of the mixture to 110°C to react 8 Hours later, the reaction solution was filtered, and the obtained solid was recrystalli...
Embodiment 2
[0027] A method for preparing environmentally friendly low-density flame-retardant polyethylene plastics, the preparation steps are as follows:
[0028] (1) Mix pentaerythritol and phosphoric acid at a molar ratio of 1:4, stir at room temperature for 30 minutes and heat to 90°C, and react for 2 hours to form a pentaerythritol phosphate mixture;
[0029] (2) After adding montmorillonite k10 of 0.5 times the amount of pentaerythritol to the pentaerythritol phosphate mixture, stirring at room temperature for 24 hours, then heating to 100° C. and maintaining for 1 hour, filtering to prepare pentaerythritol phosphate montmorillonite;
[0030] (3) After dispersing the pentaerythritol phosphate montmorillonite in 35% choline chloride-urea eutectic reagent-water mixture, add 1 times the amount of melamine of pentaerythritol, and then raise the temperature of the mixture to 100°C to react 9 Hours later, the reaction solution was filtered, and the obtained solid was recrystallized with ...
Embodiment 3
[0033] A method for preparing environmentally friendly low-density flame-retardant polyethylene plastics, the preparation steps are as follows:
[0034] (1) Mix pentaerythritol and phosphoric acid at a molar ratio of 1:4, stir at room temperature for 30 minutes and heat to 90°C, and react for 2 hours to form a pentaerythritol phosphate mixture;
[0035] (2) After adding montmorillonite k10 of 0.5 times the amount of pentaerythritol to the pentaerythritol phosphate mixture, stirring at room temperature for 24 hours, then heating to 100° C. and maintaining for 1 hour, filtering to prepare pentaerythritol phosphate montmorillonite;
[0036] (3) After dispersing the pentaerythritol phosphate montmorillonite in 25% choline chloride-urea eutectic reagent-water mixture, add melamine with 1.05 times the amount of pentaerythritol, and then raise the temperature of the mixture to 110°C for 9 Hours later, the reaction solution was filtered, and the obtained solid was recrystallized with ...
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