Special spraying type corrosion-proof sealant for suspension bridge section steel anchoring system
An anchoring system and suspension bridge technology, used in the field of sealants and preservatives, can solve the problems of many bubbles, low tensile strength, low modulus, etc., and achieve the effect of low viscosity and high thixotropy
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Embodiment 1
[0025] Embodiment 1: The spray type anticorrosion sealant of the present invention is prepared according to the following formula and process:
[0026] 1-1. Weigh raw materials: 35 kg of S203H silane-modified polyether resin from Kaneka Japan; 25 kg of polyether polyol with a molecular weight of 2000; 22 kg of U1S2 nano-active calcium carbonate; CRAY VALLEY SL polyamide rheology Auxiliary agent 8kg; Exxon Mobil D40 type hydrocarbon solvent 7.6kg; Ciba Refining Chemical Company 1010 type antioxidant 0.5kg; Ciba Company Tinuvin 326 type ultraviolet absorber 0.3kg.
[0027] 1-2. Mixing raw materials: Put the above raw materials together into a double planetary mixer, heat to 110°C, stir slowly (25-50rpm) for 100 minutes; vacuumize and heat to 110°C, stir at high speed (1000rpm) for 150 minutes, cool down to At 40°C, add 0.6kg of A-171 silane dehydrating agent from Momentive; stir slowly (250rpm) for 25 minutes, add 0.4kg of 1146 silane adhesion promoter from Evonik Degussa; stir ...
Embodiment 2
[0028] Embodiment 2: prepare the spray type anticorrosion sealant of the present invention according to following formula and process:
[0029] 2-1. Weigh raw materials: S203H silane-modified polyether resin 38 kg; 2500 molecular weight polyether polyol 21 kg; U1S2 nano-active calcium carbonate 20kg; CRAY VALLEY SL polyamide rheology additive 10kg; D40 8.1kg of type hydrocarbon solvent; 0.4kg of 1010 type anti-aging agent; 0.4kg of Tinuvin 326 type ultraviolet absorber.
[0030] 2-2. Mixing raw materials: Put the above raw materials together into a double planetary mixer, heat to 110°C, stir slowly (25-50rpm) for 100 minutes; vacuumize and heat to 110°C, stir at a high speed (1000rpm) for 150 minutes, cool down to 40°C, add 0.8kg of A-171 silane dehydrating agent; slowly stir (250rpm) for 25 minutes, add 0.8kg of 1146 type silane adhesion promoter; slowly stir (250rpm) for 25 minutes, add 0.5kg of chelated tin catalyst; After stirring (250rpm) for 25 minutes, the material is ...
Embodiment 3
[0032] Embodiment 3: The spray type anticorrosion sealant of the present invention is prepared according to the following formula and process:
[0033] 3-1. Weigh raw materials: S203H type silane modified polyether resin 25 kg; 3000 molecular weight polyether polyol 25 kg; U1S2 type nano-active calcium carbonate 25 kg; CRAY VALLEY SL type polyamide rheology additive 7 kg; D40 Type hydrocarbon solvent 15kg; Type 1010 antioxidant 0.5kg; Tinuvin 326 type UV absorber 0.5kg.
[0034] 3-2. Mixing raw materials: Put the above raw materials together into a double planetary mixer, heat to 110°C, stir slowly (25-50rpm) for 100 minutes; vacuumize and heat to 110°C, stir at a high speed (1000rpm) for 150 minutes, cool down to At 40°C, add 0.7kg of A-171 silane dehydrating agent, stir slowly (250rpm) for 25 minutes; add 0.7kg of 1146 type silane adhesion promoter, stir slowly (250rpm) for 25 minutes, add 0.6kg of chelated tin catalyst; slowly After stirring (250rpm) for 25 minutes, the ma...
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