A kind of asphalt mixture modifier and its preparation method and application
A technology of asphalt mixture and modifier, applied in the field of materials, can solve the problems of high product cost, low marketing value, no performance control indicators and physical properties of composite materials, etc., to achieve cost saving, convenient use, and avoid segregation Effect
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[0026] An asphalt mixture modifier, the component distribution ratio of the modifier includes: polyethylene A: 60-90 parts; polyethylene B: 0-30 parts; antioxidant A: 0.1-0.6 parts; Agent B: 0.1~0.6 parts; weather resistance agent: 0.2~0.8 parts; lubricant A: 0.4~1.2 parts; lubricant B: 3~12 parts, toner 0.8 parts.
[0027] The polyethylene A and polyethylene B are secondary materials or scraps recycled from packaging film, agricultural film, plastic wrap or mulch film waste, wherein the specific gravity of the polyethylene A is 0.90-0.96, the melt index is 1-5, and the tensile strength is 0.90-0.96. Tensile strength ≥ 12, elongation ≥ 300, softening point ≥ 80; the specific gravity of polyethylene B is 0.90-0.96, melt index 1-5, tensile strength ≥ 12, elongation ≥ 100, softening point ≥ 65 ; The antioxidant is antioxidant A tris (2,4-di-tert-butylphenyl) phosphite or antioxidant B tetrakis[β-(3.5-di-tert-butyl-4-hydroxyphenyl) propane One or two mixtures of acid] pentaerythr...
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