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Multifunctional wood protection agent based on nano silica sol and preparation method of multifunctional wood protection agent
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A nano-silica sol, multi-functional technology, applied in wood treatment, wood impregnation, wood impregnation, etc., to achieve the effects of improved control efficiency, reduced water absorption, and improved dimensional stability
Active Publication Date: 2019-12-13
GUIZHOU UNIV
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[0005] So far, the application of manganese-modified nano-silica sol to wood is an innovative subject. Researchers at home and abroad have used one or drugs to modify silica sol, and have not tried different concentrations of silica sol (SiO 2 ) with manganese chloride, potassiumcarbonate, borax, and phosphoric acid in different proportions to treat wood
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[0029] (2) add salt of wormwood to silica sol, keep stirring during adding, until salt of salt dissolves completely, then add borax, after adding borax, add phosphoric acid while stirring, until borax dissolves completely;
[0030] (3) After the borax is completely dissolved, add manganese chloride, which is now called current use and kept dry before use;
[0031] (4) Stir the finally obtained mixed solution for 30 min to obtain.
Embodiment 2
[0033] (1) get concentration 10%, alkaline silica sol 340g, potassium carbonate 20g, borax 16g, manganese chloride 28g, phosphoric acid 12g of particle diameter<20nm;
[0034] (2) add salt of wormwood to silica sol, keep stirring during adding, until salt of salt dissolves completely, then add borax, after adding borax, add phosphoric acid while stirring, until borax dissolves completely;
[0035] (3) After the borax is completely dissolved, add manganese chloride, which is now called current use and kept dry before use;
[0036] (4) Stir the finally obtained mixed solution for 60 min to obtain.
Embodiment 3
[0038] (1) get concentration 30%, alkaline silica sol 368g, potassium carbonate 8g, borax 8g, manganese chloride 12g, phosphoric acid 2g of particle diameter<20nm;
[0039] (2) add salt of wormwood to silica sol, keep stirring during adding, until salt of salt dissolves completely, then add borax, after adding borax, add phosphoric acid while stirring, until borax dissolves completely;
[0040] (3) After the borax is completely dissolved, add manganese chloride, which is now called current use and kept dry before use;
[0041] (4) Stir the finally obtained mixed solution for 15 minutes to obtain.
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Abstract
The invention relates to the technical field of wood protection agents and in particular to a multifunctional wood protection agent based on nano silica sol and a preparation method of the multifunctional wood protection agent. The multifunctional wood protection agent which has multiple functions of flame retardance, corrosion resistance, mold prevention, size stability and the like on wood is prepared by compounding multiple medicines such as alkali silica soil which is prepared through hydrolysis of cheap monatomic silicon, and manganesechloride, potassiumcarbonate, borax and phosphoric acid. In the protection agent, the alkali silica sol is modified by using medicines such as manganesechloride, multi-component combination is achieved, while multiple effects are achieved, the silicasol system can be kept stable sufficiently, rapid gelling is not caused, the time for treating the wood by operators is sufficient, the medicines can be sufficiently immobilized in the wood successfully, and a long-lasting protection function can be achieved for the wood. The multifunctional wood protection agent is wide in medicineraw material source, low in price and simple to prepare and can be applied to flame-retardant anti-corrosion treatment on wooden structure buildings.
Description
technical field [0001] The invention relates to the technical field of wood protective agents, in particular to a nano-silica sol-based multifunctional wood protective agent and a preparation method thereof. Background technique [0002] Due to the implementation of natural forest protection measures in my country, artificial fast-growing forests have become the main timber forests. However, fast-growing wood has defects such as loose material, low density, low strength, non-rot resistance, and more flammable. Functional improvement of artificial fast-growing forest wood is a solution. It is one of the effective ways to improve the timber industry structure due to shortage of timber resources. However, conventional modifiers with a single function can no longer meet people's needs. The development of multifunctional modifiers that integrate anti-corrosion, mildew resistance, flame retardancy, good dimensional stability, and water resistance is the main research direction of w...
Claims
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