Hydrotalcite-like-base high-molecular polymer heat-preservation master batch and preparation method thereof
A high-molecular polymer, hydrotalcite-based technology, applied in the field of agricultural polymer materials, can solve the problems of short service life, loss of thermal insulation performance, escape, etc., and achieve the effects of large preparation, improved thermal insulation and low energy consumption
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Embodiment 1
[0034] Alkyl phosphate, calcium chloride, ferric chloride and sodium hydroxide are added in the ball mill jar according to the molar ratio of 4:6:2:16, then the ball mill jar is fixed on the planetary ball mill, at room temperature at 50rpm rotating speed condition React for 1 hour, then dry the product in an oven at 70°C, grind the dried product with a pulverizer, and pass it through a 800-mesh sieve to obtain organic hydrotalcite-like;
[0035] Then two kinds of materials are by weight ratio: organic hydrotalcite-like 1.0%, polyvinyl chloride 99.0%, add high-speed mixer, after fully mixing 10min with rotation speed 60rpm under room temperature, the mixed material that will obtain is fed at a feeding rate of 600g. min -1 Add it into a twin-screw extruder to prepare hydrotalcite-like polyvinyl chloride insulation masterbatch, and set the temperature of the twin-screw extruder to 140-220°C. The thermal insulation is significantly improved, and the infrared absorbance can be in...
Embodiment 2
[0037] Add alkyl sulfate, zinc nitrate, aluminum nitrate and potassium hydroxide into the ball mill jar according to the molar ratio of 4:5.5:2.5:16, then fix the ball mill jar on the planetary ball mill, and react under the condition of 100rpm rotation speed at room temperature 2h, then dry the product in an oven at 70°C, grind the dried product finely with a pulverizer, and pass it through a 800-mesh sieve to obtain organic hydrotalcite-like;
[0038] Then the two materials are mixed according to weight ratio: organic hydrotalcite-like 3.0%, polyethylene 97.0%, add a high-speed mixer, and after fully mixing 10min with a rotation speed of 60rpm under room temperature, the obtained mixed material is fed at a feeding rate of 600g·min -1 Add it into a twin-screw extruder to prepare hydrotalcite-like polyethylene insulation masterbatch, and set the temperature of the twin-screw extruder to 185-205°C. The thermal insulation is significantly improved, and the infrared absorbance ca...
Embodiment 3
[0040]Add alkylsilane, magnesium sulfate, chromium nitrate and barium hydroxide into the ball mill jar according to the molar ratio of 5:5.5:2.5:16, then fix the ball mill jar on the planetary ball mill, and react for 3 hours at room temperature at 150rpm , then dry the product in an oven at 70°C, grind the dried product finely with a pulverizer, pass through a 800-mesh sieve, and obtain organic hydrotalcite-like;
[0041] Then put the two materials in weight ratio: organic hydrotalcite-like 5.0%, ethylene-vinyl acetate copolymer 95.0%, put them into a high-speed mixer, and mix them well at room temperature at a rotation rate of 60 rpm for 10 minutes, then feed the obtained mixed materials Rate 600g·min -1 Add it into a twin-screw extruder to prepare a hydrotalcite-like ethylene-vinyl acetate copolymer insulation masterbatch, and set the temperature of the twin-screw extruder to 120-180°C. The thermal insulation is significantly improved, and the infrared absorbance can be in...
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