A kind of modified bitumen glue and wet-laid waterproofing membrane
A technology for modifying asphalt and waterproofing membranes, applied in the direction of asphalt material adhesives, adhesives, adhesive types, etc., can solve problems such as poor compatibility, affect adhesion, and poor dispersion, and achieve firm bonding , The effect of strong bonding and accelerated diffusion
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[0044] In the present invention, the preparation method of the modified asphalt glue preferably comprises the following steps:
[0045] Mix asphalt, ultra-fine powder functionalized rubber, tackifier and plasticizer to obtain a mixed material;
[0046] After mixing the mixed material with antioxidant and filler, it is ground to obtain modified asphalt glue.
[0047] The invention mixes asphalt, superfine powder functionalized rubber, tackifier and plasticizer to obtain the mixed material. The present invention has no special limitation on the device for preparing the modified asphalt rubber, and a reaction tank well known to those skilled in the art can be used. In the present invention, the mixing temperature is preferably 180°C to 200°C, more preferably 185°C to 195°C, most preferably 180°C to 190°C; the mixing time is preferably 1h to 5h, more preferably 2h~4h, most preferably 3h. In the present invention, it is preferred to add asphalt into the reaction tank, raise the ...
Embodiment 1
[0068] Put 2,000 kg of 90# bitumen in a reaction tank, stir and heat to 180-190°C, then add 100 kg of superfine powdered carboxylated styrene-butadiene rubber, 250 kg of petroleum resin and 250 kg of naphthenic oil, and put the obtained mixture in Continue to stir and mix for 3 hours at the above temperature, and then repeatedly grind through the colloid mill, then add 20 kg of antioxidant and 2,400 kg of talc powder, stir for 1 hour, repeat the grinding through the colloid mill, and introduce it through the pump when the temperature is lowered to 135-145°C Between the calendering rollers, after cooling and coiling to form a waterproof membrane, the thickness of the membrane can be controlled by adjusting the distance between the calendering rubber rollers.
[0069] In the present invention, the wet-laid waterproofing membrane obtained in Example 1 is subjected to a mechanical performance test, and the results are shown in Table 1, and Table 1 is the mechanical performance test...
Embodiment 2
[0076] Put 2,500 kg of 90# asphalt in a reaction tank, stir and heat to 180-190°C, then add 100 kg of ultra-fine powdered carboxylated styrene-butadiene rubber, 200 kg of petroleum resin and 300 kg of naphthenic oil, and put the resulting mixture in Continue to stir and mix for 3 hours at the above temperature, and then repeatedly grind through the colloid mill, then add 20 kg of antioxidant and 1900 kg of talc powder to it, stir for 1 hour and then repeatedly grind through the colloid mill, and introduce it through the pump when the temperature is lowered to 135-145°C Between the calendering rollers, after cooling and coiling to form a waterproof membrane, the thickness of the membrane can be controlled by adjusting the distance between the calendering rubber rollers.
[0077] In the present invention, the obtained wet-laid waterproofing membrane is tested for mechanical properties, and the results show that the wet-laid waterproofing membrane obtained in this embodiment meets...
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Abstract
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