Antifouling biological adhesive agent and antifouling biological adhesive coating
A bio-fouling and anti-fouling technology, applied in anti-fouling/underwater coatings, anti-corrosion coatings, paints containing biocides, etc., can solve marine concrete structure fouling, economic loss, marine concrete structure safety and durability hazards and other problems, to achieve good biocompatibility, enhance antibacterial and antifouling, and improve antibacterial and anti-biological fouling performance.
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[0052] Example 1
[0053] Step1. Preparation of polyaspartate, code name PAE-a
[0054] The amino-terminated polyether Jeffamine D-2000 and diethyl maleate are compared to n(-NH 2 ): n(-C=C-)=1:1 measurement. Add Jeffamine D-2000 into a reactor equipped with a stirrer and a heating and temperature control device, ventilate nitrogen and increase the temperature to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds. After the addition is complete, nitrogen protection Under stirring, heat to 80°C, keep for 24h, and cool down to produce polyaspartate.
[0055] Step2. Preparation of A component of polyaspartate coating
[0056] The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene glycol PPG2000 is measured according to the NCO% of the resulting prepolymer = 15%. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reactor equipped with a stirrer and a heating and temperature control device, ventilate nitrogen and heat up to 40°C, add polyoxyp...
Example Embodiment
[0075] Example 2
[0076] Step1. Preparation of polyaspartate, code name PAE-b
[0077] The amino-terminated polyether Jeffamine T-5000 and diethyl maleate are compared by the amount of substance n(-NH 2 ): n(-C=C-)=1:1 measurement. Add Jeffamine T-5000 into a reactor equipped with a stirrer and heating and temperature control device, ventilate nitrogen and heat to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds. After the addition is complete, nitrogen protection Under stirring, heat to 80°C, keep for 24h, and cool down to produce polyaspartate.
[0078] Step2. Preparation of A component of polyaspartate coating
[0079] The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene glycol PPG2000 is measured according to the NCO% of the resulting prepolymer = 15%. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reactor equipped with a stirrer and a heating and temperature control device, blow nitrogen and heat up to 40℃, add polyoxypropy...
Example Embodiment
[0098] Example 3
[0099] Step1. Preparation of polyaspartate, code name PAE-c
[0100] The amino-terminated polyether Jeffamine T-403 and diethyl maleate are compared to n(-NH 2 ): n(-C=C-)=1:1 measurement. Add Jeffamine T-403 into a reactor equipped with a stirrer and a heating and temperature control device, ventilate nitrogen and heat to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds. After the addition is complete, nitrogen protection Under stirring, heat to 80°C, keep for 24h, and cool down to produce polyaspartate.
[0101] Step2. Preparation of A component of polyaspartate coating
[0102] The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene glycol PPG2000 is measured according to the NCO% of the resulting prepolymer = 15%. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reactor equipped with a stirrer and a heating and temperature control device, blow nitrogen and heat up to 40℃, add polyoxypropylene glycol PPG2000 drop...
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