Waste rubber powder/styrene-butadiene-styrene (SBS) composite modified asphalt and production process thereof
A technology of composite modified asphalt and production process, which is applied in the direction of building components, building insulation materials, buildings, etc., can solve the problems of long process route, prolong production time, expensive and other problems, and achieve the effect of simple production process and low energy consumption
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[0018] Example 1
[0019] The present invention is a waste rubber powder / SBS composite modified asphalt. Its components include activator 0.3wt‰, penetrant 1wt‰, waste rubber powder 20wt%, SBS 0.2wt%, aromatic oil 2wt%, and the rest is base asphalt .
[0020] Among them, the activator is sulfur; the penetrant is diesel.
[0021] Among them, the particle size of the waste rubber powder is 30 mesh, and the content of natural rubber hydrocarbons in the waste rubber powder is 35%.
[0022] Taking the above waste rubber powder / SBS composite modified asphalt as an example, the production process includes the following processing steps:
[0023] The first step: heating the base asphalt in the reactor to a temperature of 180℃ to melt;
[0024] The second step: heat preservation and stirring of the base asphalt, add waste rubber powder, penetrant, SBS, aromatic oil, and activator to the above base asphalt at a temperature of 180~185℃ to swell, and at the same time turn on the high-speed shear cy...
Example Embodiment
[0027] Example 2
[0028] The present invention is a waste rubber powder / SBS composite modified asphalt. Its components include activator 0.3wt‰, penetrant 1wt‰, waste rubber powder 20wt%, SBS 0.3wt%, aromatic oil 2wt%, and the rest is base asphalt .
[0029] Among them, the activator is sulfur and the penetrant is diesel.
[0030] Wherein, the particle size of the waste rubber powder is 30 mesh, and the content of natural rubber hydrocarbons in the waste rubber powder is 35%.
[0031] Taking the above waste rubber powder / SBS composite modified asphalt as an example, the production process includes the following processing steps:
[0032] Step 1: Heat the base pitch in the reactor to 190℃ to melt;
[0033] The second step: heat preservation and stirring of the base asphalt, add waste rubber powder, penetrant, SBS, aromatic oil, and activator to the above base asphalt at a temperature of 180~185℃ to swell, and at the same time turn on the high-speed shear cycle connected to the reactor ...
Example Embodiment
[0036] Example 3
[0037] The present invention is a waste rubber powder / SBS composite modified asphalt. Its components include activator 0.3wt‰, penetrant 1wt‰, waste rubber powder 20wt%, SBS 0.4wt%, aromatic oil 2wt%, and the rest is base asphalt .
[0038] Wherein, the activator is sulfur, and the penetrant is diesel.
[0039] Wherein, the particle size of the waste rubber powder is 30 mesh, and the content of natural rubber hydrocarbons in the waste rubber powder is 35%.
[0040] Taking the above waste rubber powder / SBS composite modified asphalt as an example, the production process includes the following processing steps:
[0041] Step 1: Heat the base pitch in the reactor to 190℃ to melt;
[0042] The second step: heat preservation and stirring of the base asphalt, add waste rubber powder, penetrant, SBS, aromatic oil, and activator to the above base asphalt at a temperature of 180~185℃ to swell, and at the same time turn on the high-speed shear cycle connected to the reactor Af...
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