Adhesive for bonding prefabricated rubber runway
A prefabricated and adhesive technology, applied in the direction of adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve the problems of decreased stability, low cost, insufficient strength, etc., and achieve high stability and not easy to shift , good quality effect
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Embodiment 1
[0052] An adhesive for bonding prefabricated rubber runways, including component A and component B stored independently, and component A includes the following components:
[0053] Polyester diol, polyether diol, chain extender, ethyl acetate, propylene glycol methyl ether acetate, catalyst.
[0054] B component is diisocyanate.
[0055] Wherein, polyester glycol is the composite of polyethylene adipate, polybutylene adipate, and the mass ratio of polyethylene adipate, polybutylene adipate is 3:2.
[0056] Wherein, polyether glycol is polyethylene glycol.
[0057] Wherein, the chain extender is 1,4 butanediol.
[0058] Among them, the catalyst is a compound of dibutyltin dilaurate, triethanolamine, bis(2-dimethylaminoethyl) ether, dibutyltin dilaurate, triethanolamine, bis(2-dimethylaminoethyl) ether The mass ratio is 3:5:1.
[0059] In Examples 1-5, see Table 2 for the specific input amount (unit: kg) of each component in component A.
[0060] Table 2
[0061]
[00...
Embodiment 1-5
[0066] In embodiment 1-5, the preparation method of A component is as follows:
[0067] Put polyester diol into a stirring tank, heat to 100°C, rotate at 30r / min, keep stirring, then put polyether diol, chain extender, ethyl acetate, propylene glycol methyl ether into polyester diol Acetate and catalyst, rotating at 60r / min, stirring for 5min, cooling to 40°C, subpackaging, pumping out the air in the package to obtain component A.
[0068] In embodiment 1-5, the preparation method of B component is as follows:
[0069] Put the diisocyanate into a stirred tank, heat to 100°C, rotate at 10r / min, stir for 10min, put in nitrogen protection, cool to 40°C, pack separately, and pump out the air in the package to obtain component B.
[0070] By mixing at 100°C, the moisture in each raw material is fully discharged, reducing the influence of moisture on the adhesive.
Embodiment 6
[0072] A prefabricated rubber runway bonding adhesive, compared with embodiment 3, the difference only lies in:
[0073] The mass ratio of dibutyltin dilaurate, triethanolamine and bis(2-dimethylaminoethyl) ether is 1:1:1.
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Abstract
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