Composite anti-corrosion and anti-mildew agent for bio-based adhesive and preparation method of composite anti-corrosion and anti-mildew agent

A technology of anti-corrosion and anti-fungal agents and adhesives, which is applied in the field of anti-corrosion and anti-mold agents, can solve the problems of narrow antibacterial spectrum range and large dosage, achieve the effect of shortening the reaction time, reducing the dosage, and helping the equipment to prevent corrosion

Active Publication Date: 2020-02-14
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single inorganic anticorrosion and antifungal agent (such as calcium borate, zinc borate, etc.) has problems such as large dosage and narrow antibacterial spectrum range.

Method used

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  • Composite anti-corrosion and anti-mildew agent for bio-based adhesive and preparation method of composite anti-corrosion and anti-mildew agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Preparation: 100 parts of calcium silicate, 40 parts of calcium oxide, 4 parts of zinc oxide, 2 parts of copper oxide, 0.5 parts of silver oxide, and 240 parts of borax. Prepare according to the following steps:

[0026] (a) Pre-reaction: Add borax and silicate to 1000 parts of water, then sequentially add calcium oxide, zinc oxide, silver oxide, and copper oxide, control the temperature to about 45°C, and continue to stir for 1 hour to obtain a pre-reacted slurry;

[0027] (b) Wet grinding: add the above-mentioned pre-reaction slurry to a wet grinding machine for 60 minutes;

[0028] (c) Dehydration washing: centrifuge the above-mentioned qualified slurry and wash it with clean water twice; the water phase is returned to the ingredients;

[0029] (d) Drying treatment: Dry the washed solid material in a dryer at a temperature of 150°C for 1 hour to obtain a powdered product with a particle size D50 of 12 microns, and it contains B 2 O 3 21.84%, ZnO 1.52%, CuO 0.72%, Ag 2 O is 0....

Embodiment 2

[0031] Preparation: 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, that is, the particle size D50 is 15 microns Powdered 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] Same as Example 1, but 500 parts of dissolved water are taken to obtain a powdered product with a particle size D50 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 anti-corrosion and anti-mildew agent for a bio-based adhesive and a preparation method of the composite anti-corrosion and anti-mildew agent. The preparation methodcomprises the following steps: taking 100 parts of a 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 boraxas raw materials, mixing the raw materials with water to obtain a pretreated material, carrying out wet grinding on the pretreated material to obtain a slurry, dehydrating and washing the slurry, andcarrying out centrifugal separation to obtain a solid material, and drying the solid material to obtain the composite anti-corrosion and anti-mildew agent. The main active component is boron; the auxiliary active components are zinc, copper and silver elements, the non-active component is calcium elements, borate formed through reaction has low water solubility, high thermal stability and the like, and meanwhile, based on the synergistic effect of B-Zn-Cu-Ag composite components, the corrosion-resistant and mildew-proof effects can be achieved when a small amount of the composite anti-corrosion and anti-mildew agent is used in the bio-based adhesive.

Description

Technical field [0001] The invention relates to a composite antiseptic and antifungal agent for bio-based adhesives and a preparation method thereof, belonging to the technical field of antiseptic antifungal agents. Background technique [0002] The main components of bio-based adhesives are natural polymer materials such as protein and starch. They are easy to spoil and mold, and need to add antiseptic and antifungal agents, and the added antiseptic and antifungal agents must have a broad antibacterial spectrum and heat resistance (because biological The base adhesive needs to be heated and cured), durability (ie, long validity period), continuity (difficult to lose, low water solubility and not easy to lose), safety (low toxicity, no irritation) and other characteristics, which are used in wood-based panels. [0003] The existing antiseptic and antifungal agents are difficult to meet the antiseptic and antifungal requirements of bio-based adhesives. Although organic antiseptic a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J11/04
CPCC09J11/04
Inventor 蒋梦琪俞马宏高瞩赵志仁
Owner NANJING UNIV OF SCI & TECH
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