Aging-resistant caulking filling material and preparation method thereof
A filling material and anti-aging technology, which is applied to building insulation materials, building components, pavement details, etc., can solve the problems of poor aging resistance of joint filling materials, affect the service life of bridge decks, and high-grade joint filling construction, and achieve joint filling construction The effect of low temperature, prolonging the service life and delaying the aging speed
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Embodiment 1
[0031] Heat 100 parts (parts by weight, the same below) of petroleum asphalt to 150°C, add 6 parts of Fufang extract oil (furfural refined extract oil, the same below), 8 parts of SBS YH-791 and 2 parts of EBS, 0.3 parts of anti Oxygen agent 168, keep the temperature at 165-170°C, shear and mix for 20 minutes, add 0.11 parts of cross-linking agent, continue shearing reaction for 40 minutes, then add 3 parts of light shielding agent DL8, continue shearing for 20 minutes, test bridge deck caulking The anti-aging properties of the materials are shown in Table 1.
Embodiment 2
[0033] Heat 100 parts by weight of petroleum asphalt to 150°C, add 8 parts of Fufang extract oil, 10 parts of SBS YH-791 and 3 parts of EBS, 0.8 parts of antioxidant 168, keep the temperature at 165-170°C, and shear and mix for 20 minutes , add 0.13 parts of cross-linking agent, continue shearing reaction for 40 minutes, then add 2.0 parts of light shielding agent DL8, continue shearing for 20 minutes, test the anti-aging performance of bridge deck caulking filling materials, see Table 1.
Embodiment 3
[0035] Heat 100 parts by weight of petroleum asphalt to 150°C, add 10 parts of Fufang extract oil, 10 parts of SBS YH-791 and 3 parts of EBS, 0.6 parts of antioxidant 168, keep the temperature at 165-170°C, and shear and mix for 20 minutes , add 0.15 parts of cross-linking agent, continue shearing reaction for 40 minutes, then add 2 parts of light shielding agent DL8, continue shearing for 20 minutes, test the anti-aging performance of bridge deck caulking filling materials, see Table 1.
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