Self-adhesive polymer modified asphalt waterproof coil material modifier and preparation method thereof
A technology for modifying asphalt and waterproofing membranes, applied in the direction of asphalt material binders, binder types, polymer binder additives, etc. Problems such as poor performance, poor initial viscosity and poor stickiness, to achieve the effect of weakening the ability of movement and migration, improving comprehensive physical properties, and improving initial viscosity and stickiness
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[0038] According to another aspect of the present invention, there is also provided a method for preparing a self-adhesive polymer modified asphalt waterproof membrane modifier, which includes the following steps: compacting linearized active rubber, fillers and rubber crosslinking aids kneading and mixing to obtain a mixture; and extruding the mixture to obtain a modifier.
[0039] When the modifier obtained by the preparation method is used for modifying the self-adhesive coil, it can form a tight interfacial combination with other components. At the same time, because the linearized reactive rubber also has good low-temperature flexibility and elasticity, it can give full play to the characteristics of the rubber itself when applied to self-adhesive coils, thereby improving the comprehensive physical properties of self-adhesive coils. Predispersing the filler in the modifier can solve the packaging and transportation problems of viscous linearized reactive rubber. At the s...
Embodiment 1 to 17
[0059] All utilize following method to carry out waste rubber desulfurization regeneration treatment in these embodiments:
[0060] Step 1: Put 80-mesh waste tire rubber powder and photocatalyst into the high-speed mixing unit, stir at a stirring speed of 1000rpm for 20 minutes until the temperature reaches 70°C, stop stirring, put the material into the cooling unit to cool and discharge, and obtain a mixture ;
[0061] Step 2: Put the mixture into a supercritical carbon dioxide reactor, use a high-pressure pump to inject carbon dioxide gas into the reactor to adjust the pressure in the reactor, and raise the temperature at the same time to convert the carbon dioxide gas into a supercritical state; start stirring to make the mixture in the supercritical state Swell in critical carbon dioxide to obtain a swelling mixture;
[0062] Step 3: Maintain the above-mentioned supercritical carbon dioxide environment, start the built-in ultraviolet light source to irradiate the swelling...
Embodiment 18
[0068] The technological process in this embodiment is the same as embodiment 9, and difference is:
[0069] Step 1: Put 120 mesh waste tire rubber powder and photocatalyst into the high-speed mixing unit, stir at a stirring speed of 700 rpm for 30 minutes until the temperature reaches 60°C, stop stirring, put the material into the cooling unit to cool and discharge, and obtain mixture.
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