Heat-insulating and cooling polymer master batch, polymer material and preparation method thereof

[0048]Ingredients formula (mass ratio, parts)

[0049]Polymer masterbatch formula: HDPE (load 2160g, MFR = 18g / 10min at 190℃) 56, Cr2O3(The particle size is 0.5μm, the purity is 99.9%, the thermal weight loss rate at 600°C is 0.05%) 40, antioxidant 300 1.0, polyethylene wax 1.0, erucamide 1.0, zinc stearate 1.0.

[0050]Polymer material formula: HDPE (load 2160g, MFR=2.0g / 10min at 190℃) 97.5, polymer masterbatch (Cr2O3The content is 40wt%, the load is 2160g, and the temperature is 190°C, MFR=3.0g / 10min) 2.5.

[0051]Preparation Process:

[0052]Additive dilution and high-speed mixing: In a high-speed mixer, 6 parts of HDPE powder resin antioxidant 300, polyethylene wax, zinc stearate and 1 part of erucamide in the formula raw materials are rotated at a low speed (below 500rpm) ) Stir for 4 minutes, start high-speed stirring (above 1000 rpm) for 2 minutes, and then discharge to another mixer with jacket water cooling. When the temperature drops to 40℃, discharge to the dilution aid silo;

[0053

[0056]Ingredients formula (mass ratio, parts)

[0057]Polymer masterbatch formula: HDPE (load 2160g, MFR = 20g / 10min at 190℃) 46, Cr2O3(The particle size is 1.0μm, the purity is 99.8%, the thermal weight loss rate at 600°C is 0.1%) 50, antioxidant 300 1.0, polyethylene wax 1.0, erucamide 1.0, zinc stearate 1.0.

[0058]Polymer material formula: HDPE (load 2160g, MFR = 1.5g / 10min at 190℃) 98.0, polymer masterbatch (Cr2O3The content is 50wt%, the load is 2160g, and the temperature is 190°C, MFR=2.0g / 10min)2.0.

[0059]Preparation Process:

[0060]Additive dilution and high-speed mixing: In a high-speed mixer, 6 parts of HDPE powder resin antioxidant 300, polyethylene wax, zinc stearate and 1 part of erucamide in the formula raw materials are rotated at a low speed (below 500rpm) ) Stir for 3 minutes, start high-speed stirring (above 1000 rpm) for 2 minutes and then discharge to another mixer with jacket water cooling. When the temperature drops to 35°C, discharge to the dilution aid silo;

[0061

[0064]Raw material formula (mass ratio, parts):

[0065]Polymer masterbatch formula: HDPE (load 2160g, MFR = 20g / 10min at 190℃) 51, Cr2O3(The particle size is 1.0μm, the purity is 99.9%, the thermal weight loss rate at 600°C is 0.1%) 45, antioxidant 300 1.0, polyethylene wax 1.0, erucamide 1.0, zinc stearate 1.0.

[0066]Polymer material formula: LDPE (load 2160g, MFR = 0.5g / 10min at 190℃) 93.3, polymer masterbatch (Cr2O3The content is 45wt%, the load is 2160g, and the temperature is 190°C, MFR=1.0g / 10min)6.7.

[0067]Preparation Process:

[0068]Additive dilution and high-speed mixing: In a high-speed mixer, 6 parts of HDPE powder resin antioxidant 300, polyethylene wax, zinc stearate and 1 part of erucamide in the formula raw materials are rotated at a low speed (below 500rpm) ) Stir for 2min, start high-speed stirring (above 1000rpm) for 3min, then discharge to another mixer with jacket water cooling, when the temperature drops to 45℃, discharge to the dilution aid silo;

[0069]Polymer mast