Direct-feeding type waste plastic asphalt modifier and preparation method thereof
A kind of asphalt modifier, technology of waste plastics, applied in the field of direct throwing waste plastic asphalt modifier and its preparation
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Embodiment 1
[0030] The invention discloses a preparation method of a direct throw-in waste plastic asphalt modifier, which comprises the following steps:
[0031] (1) 89 parts of LDPE recycled materials, 10 parts of high fluidity low-density polyethylene and 1 part of antioxidant are mixed in a high-speed mixer according to the ratio of parts by mass, and the blended material is obtained after stirring;
[0032] The working parameters of the high-speed mixer are 500rpm, the mixing time is 5min, and the mixing temperature is below 60°C.
[0033] (2) Putting the blended material into a twin-screw extruder to extrude and granulate to obtain a direct-input type waste plastic asphalt modifier.
Embodiment 2
[0035] The invention discloses a preparation method of a direct throw-in waste plastic asphalt modifier, which comprises the following steps:
[0036] (1) 79 parts of LDPE recycled materials, 20 parts of high fluidity low-density polyethylene and 1 part of antioxidant are mixed in a high-speed mixer according to the ratio of parts by mass, and the blended material is obtained after stirring;
[0037]The working parameters of the high-speed mixer are 500rpm, the mixing time is 5min, and the mixing temperature is below 60°C.
[0038] (2) Putting the blended material into a twin-screw extruder to extrude and granulate to obtain a direct-input type waste plastic asphalt modifier.
Embodiment 3
[0040] The invention discloses a preparation method of a direct throw-in waste plastic asphalt modifier, which comprises the following steps:
[0041] (1) 69 parts of LDPE recycled materials, 30 parts of high-fluidity low-density polyethylene and 1 part of antioxidant are mixed in a high-speed mixer according to the ratio of parts by mass, and the blended material is obtained after stirring;
[0042] The working parameters of the high-speed mixer are 500rpm, the mixing time is 5min, and the mixing temperature is below 60°C.
[0043] (2) Putting the blended material into a twin-screw extruder to extrude and granulate to obtain a direct-input type waste plastic asphalt modifier.
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