Composite anticorrosion and antifungal agent for bio-based adhesive and preparation method thereof
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A technology of anti-corrosion and anti-fungal agent and adhesive, applied in the field of anti-corrosion and anti-fungal agent, can solve the problems of narrow antibacterial spectrum and large dosage, and achieve the effect of shortening reaction time, reducing dosage, and being easy to compound.
Active Publication Date: 2021-06-08
NANJING UNIV OF SCI & TECH
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Problems solved by technology
Single inorganic anticorrosion and antifungal agents (such as calcium borate, zinc borate, etc.) have problems such as large dosage and narrow antibacterial spectrum range
Method used
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Embodiment 1
[0025] Prepare materials: 100 parts of calcium silicate, 40 parts of calcium oxide, 4 parts of zinc oxide, 2 parts of copper oxide, 0.5 part of silver oxide, 240 parts of borax, prepared according to the following steps:
[0026] (a) Pre-reaction: Add borax and silicate to 1000 parts of water, then add calcium oxide, zinc oxide, silver oxide, and copper oxide in sequence, control the temperature at about 45°C, and continue stirring for 1 hour to obtain a pre-reaction slurry;
[0027] (b) Wet grinding: put the above pre-reaction slurry into the wet grinding machine and grind for 60 minutes;
[0028] (c) Dehydration and washing: centrifuge the above-mentioned qualified grinding slurry, and wash it twice with clean water; return the water phase to the ingredients;
[0029] (d) Drying treatment: Dry the above-mentioned washed solid material in a dryer at a temperature of 150°C for 1 hour to obtain a powdery finished product with a particle size D50 of 12 microns, which contains B ...
Embodiment 2
[0031] Prepare materials: 100 parts of calcium silicate, 60 parts of calcium oxide, 6 parts of zinc oxide, 3 parts of copper oxide, 1 part of silver oxide, 260 parts of borax, and then prepare according to the steps of Example 1, and obtain a particle size D50 of 15 microns The powdered finished product, and it contains B 2 o 3 25.03%, ZnO 1.67%, CuO 0.85%, Ag 2 O is 0.28%.
Embodiment 3
[0033] With embodiment 1, but dissolving water gets 500 parts, obtains particle diameter D50 and is the powdery finished product of 16 microns, and it contains B 2 o 3 22.14%, ZnO 1.54%, CuO 0.73%, Ag 2 O is 0.18%.
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Abstract
The invention discloses a composite anticorrosion and antifungal agent for bio-based adhesives and a preparation method thereof. The method uses 100 parts of silicate, 40-60 parts of calcium oxide, 4-6 parts of zinc oxide, 2-3 parts of copper oxide, 0.5-1 part of silver oxide, and 240-260 parts of borax as raw materials, and mixes them with water first. The pretreated material is obtained, and then the pretreated material is subjected to wet grinding to obtain a slurry, then the slurry is dehydrated and washed, and the solid material obtained by centrifugation is dried to obtain a composite anticorrosion and antifungal agent. In the composite anticorrosion and antifungal agent of the present invention, the main active ingredient is boron element, the secondary active ingredient is zinc, copper, silver element, and the inactive ingredient is calcium element. The borate formed by the reaction not only has low water solubility , and has high thermal stability, etc., and based on the synergistic effect of B-Zn-Cu-Ag composite components, a small dose of bio-based adhesives can achieve anti-corrosion and anti-mold effects.
Description
technical field [0001] The invention relates to a composite anticorrosion and antifungal agent for bio-based adhesives and a preparation method thereof, belonging to the technical field of anticorrosion and antifungal agents. Background technique [0002] The main components of bio-based adhesives are natural polymer materials such as protein and starch, which are easy to be corrupted and moldy, so anti-corrosion and anti-fungal agents need to be added, and the anti-corrosion and anti-fungal agents added must have a broad antibacterial spectrum and heat resistance (because biological The base adhesive needs to be cured by heating), durability (that is, long validity period), continuity (difficult to lose, low water solubility and not easy to lose), safety (low toxicity, no irritating smell), etc., and is applied to wood-based panels. [0003] Existing anti-corrosion and anti-mold agents are difficult to meet the anti-corrosion and anti-mold requirements of bio-based adhesive...
Claims
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Application Information
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