A process for preparing asphalt modifier with h2o2 as raw material
An asphalt modifier, H2O2 technology, applied in building thermal insulation materials, building components, buildings, etc., can solve the problems of low yield and complex process, and achieve the effects of high yield, uniform reaction and good fusion.
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Embodiment 1
[0028] Example 1, a kind of H 2 o 2 A process for preparing an asphalt modifier for raw materials, comprising the following steps:
[0029] 1) Mix 300kg of low molecular weight, high density polyethylene powder, 600kg of deionized water, industrial H 2 o 2 Add 100kg of water, 0.6kg of polymerization inhibitor, 0.6kg of metallocene catalyst, 0.6kg of surfactant, etc. into the high-temperature pressure reaction kettle, stir for 30min, and make a suspension turbid liquid;
[0030] 2) Heating the suspended turbid liquid, the heating rate is controlled at 1.5°C / min, while stirring continuously, the rotating speed is 300r / min;
[0031] 3) Pressurize and heat up, and the pressure reaches 8.104×10 5 When the pressure is high, stop pressurizing, heat up to 120°C, hold for 72 hours, and keep stirring during the hold;
[0032] 4) Cooling and filtering: After the heat preservation and stirring period is over, it is cooled to room temperature naturally; the suspension after cooling is...
Embodiment 2
[0038] Example 2, a kind of H 2 o 2 A process for preparing an asphalt modifier for raw materials, comprising the following steps:
[0039] 1) Mix 300kg of low molecular weight, high density polyethylene powder, 600kg of deionized water, industrial H 2 o 2 Add 150kg of water, 4.5kg of polymerization inhibitor, 6.0kg of metallocene catalyst, and 4.5kg of surfactant into the high-temperature pressure reactor, and stir for 30 minutes to make a suspension turbidity.
[0040] 2) Heating the suspended turbid liquid, the temperature rate is controlled at 1.5°C / min, and the temperature is maintained while stirring continuously, with a rotation speed of 500r / min;
[0041] 3) Pressurize and heat up, and the pressure reaches 8.104×10 5 When the pressure is high, stop pressurizing, heat up to 120°C, hold for 72 hours, and keep stirring during the hold;
[0042] 4) Cooling and filtering: After the heat preservation and stirring period is over, the temperature is naturally lowered to r...
Embodiment 3
[0048] Example 3, a kind of H 2 o 2 A process for preparing an asphalt modifier for raw materials, comprising the following steps:
[0049]1) Mix 300kg of low molecular weight, high density polyethylene powder, 600kg of deionized water, industrial H 2 o 2 Add 110kg of water, 1.5kg of polymerization inhibitor, 1.5kg of metallocene catalyst, and 1.5kg of surfactant into the high-temperature pressure reaction kettle, stir for 30min, and make a suspension turbid liquid.
[0050] 2) Heating the suspended turbid liquid, the heating rate is controlled at 1.5°C / min, while stirring continuously, the rotating speed is 500r / min;
[0051] 3) Pressurize and heat up, and the pressure reaches 8.104×10 5 When the pressure is high, stop pressurizing, heat up to 120°C, hold for 72 hours, and keep stirring during the hold;
[0052] 4) Cooling and filtering: After the heat preservation and stirring period is over, the temperature is naturally lowered to room temperature; after cooling, the s...
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