Anti-rutting additive, its preparation method and application containing coal directly-liquefied residue

Anti-rutting additive, its preparation method and application containing coal directly-liquefied residue

  • CN 104,262,889 B
  • Filed: 09/12/2014
  • Issued: 05/04/2018
  • Est. Priority Date: 09/12/2014
  • Status: Active Grant
First Claim
Patent Images

1. a kind of asphalt, it includes anti-rutting additive, mineral aggregate and matrix pitch, the anti-rutting additive, mineral aggregateWeight ratio with matrix pitch is 0.2-1.4:

  • 94-96:

    2.9-5.4, the anti-rutting additive are residual containing DCL/Direct coal liquefactionThe anti-rutting additive of slag, it includes coal directly-liquefied residue, thermoplastic elastomer (TPE) and additive, and the DCL/Direct coal liquefaction is residualThe weight ratio of slag and thermoplastic elastomer (TPE) is 1;

    1-2, the additive account for the coal directly-liquefied residue and thermoplastic elastomehcThe 5%-20% of the weight sum of property body;

    Wherein, the coal directly-liquefied residue studies on asphaltene content is 60-85%;

    C and H element relative amount are 70-90%;

    InstituteIt is styrene-butadiene-copolymer or rubber and plastic alloy analog thermoplastic elastomer to state thermoplastic elastomer (TPE), the additive for oil andPetropols, the grease separation is from one kind in rubber oil, aromatic naphtha and naphthenic oil;

    The Petropols are selected from C9, C7 orOne kind in person'"'"'s C5 Petropols;

    The anti-rutting additive is prepared by the following method:

    By coal directly-liquefied residue, thermoplastic elastomer (TPE) and additionAgent mixes in proportion, is extruded through screw extruder, air-cooled die-surface granulate equipment is granulated and is made;

    Wherein, the extrusion temperature is120-230℃



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