Flame retarding asphalt composition for roads and preparation method thereof
A technology for asphalt composition and road asphalt, which is applied to building structures, building components, building insulation materials, etc. It is not conducive to the industrial production of flame retardant asphalt and other problems, and achieves the effect of good smoke suppression effect, wide range of raw material sources and good flame retardant effect.
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Embodiment 1
[0050] The road flame-retardant asphalt component with stable heat storage performance of the present invention:
[0051] Base bitumen 100 parts
[0052] Decabromodiphenyl ether 3 parts
[0053] Chlorinated paraffin-70 5 parts
[0054] Compatibilizer 2 parts
[0055] Vinyl silane coupling agent (A-151) 0.4 parts
[0056] Weigh the reaction raw materials according to the ratio, add base asphalt and compatibilizer into the reaction kettle respectively, heat to 120°C, and mix for 0.5 hours in a mixing device with stirring function at 500 rpm. At 140°C, add brominated flame retardants, chlorine-based flame retardants, and coupling agents in the above ratio to the molten asphalt, and stir and mix in a mixing device with high-speed stirring function at 4000 rpm for 1 hour. That is to obtain the combination mixture, and the properties of the composition are listed in Table 3. The test results show that the segregated solubility difference of the sample is 0.1%, which shows that ...
Embodiment 2
[0058] The road flame-retardant asphalt component with stable heat storage performance of the present invention:
[0059] Base bitumen 100 parts
[0060] Decabromodiphenyl ether 3 parts
[0061] Chlorinated Paraffin-50 5 parts
[0062] Chlorinated paraffin-70 10 parts
[0063] 0.5 parts of compatibilizer
[0064] Vinyl silane coupling agent (A-151) 0.4 parts.
[0065] The preparation method of this embodiment is the same as that of Example 1, and the properties of the obtained composition are listed in Table 3. The test results show that the segregated solubility difference of the sample is 0.1%, the oxygen index is 34%, and the heat storage stability and flame retardancy are all improved.
Embodiment 3
[0067] The road flame-retardant asphalt component with stable heat storage performance of the present invention:
[0068] Base bitumen 100 parts
[0069] Decabromodiphenyl ether 2 parts
[0070] Chlorinated paraffin-70 5 parts
[0071] Compatibilizer 2 parts
[0072] Vinyl silane coupling agent (A-151) 0.3 parts
[0073] The preparation method of this embodiment is the same as that of Example 1, and the properties of the obtained composition are listed in Table 4. The test results show that the segregated solubility difference of the sample is -0.1%, the oxygen index is 27%, the heat storage stability is good, and there is no obvious difference in flame retardancy compared with Example 1.
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Abstract
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