Asphalt anti-stripping agent as well as preparation method and application thereof
An anti-stripping agent and anti-stripping technology, which is applied in building components, building insulation materials, buildings, etc., to achieve the effects of high viscosity and flexibility, good polarity and anti-aging performance, and good high temperature peeling performance.
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Embodiment 1
[0043] The SBR with a bound styrene content of 26wt% was pulverized in advance, with a particle size of 5-18mm, and set aside. Warm up the kneader and set aside.
[0044] Weigh 15 kg of crushed SBR, 11 kg of triphenylmethane triisocyanate, 11 kg of N,N'-diphenyl-p-phenylenediamine, and 11 kg of silane coupling agent (KH560) and place them in a kneader for mixing. The temperature is 155°C, and the mixing time is 65 minutes; then extruded to granulate, and the extrusion temperature is 155°C. Cut into granules with a particle size of 2 mm to obtain the anti-stripping agent. The distribution ratio of each group is shown in Table 1.
Embodiment 2
[0046] The SBR with a combined styrene content of 45wt% was pulverized in advance, with a particle size of 5-19mm, and set aside. Warm up the kneader and set aside.
[0047]Weigh 100 kg of pulverized SBR, 60 kg of triphenylmethane triisocyanate, 50 kg of N-cyclohexyl-N'-phenyl-p-phenylenediamine, and 40 kg of aluminate coupling agent and place them in a kneader for mixing. The mixing temperature is 190°C, and the mixing time is 120 minutes; then extrusion granulation, the extrusion temperature is 180°C. Cut into granules with a particle size of 3 mm to obtain the anti-stripping agent. The distribution ratio of each group is shown in Table 1.
Embodiment 3
[0049] The SBR with a bound styrene content of 39wt% was pulverized in advance, with a particle size of 5-17 mm, and set aside. Warm up the kneader and set aside.
[0050] Weigh 80 kg of pulverized SBR, 48 kg of triphenylmethane triisocyanate, 37 kg of N-phenyl-N'-isopropyl-p-phenylenediamine, and 28 kg of titanate coupling agent and place them in a kneader for mixing. kneading, the kneading temperature is 180°C, and the kneading time is 110min; then extrusion granulation, the extrusion temperature is 175°C. Cut into granules with a particle size of 4 mm to obtain the anti-stripping agent. The distribution ratio of each group is shown in Table 1.
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