Nano alumina-containing modified wood production method
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A technology of nano-alumina and production methods, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve problems such as cracking, easy to burn, and easy to be eaten by insects and bacteria, and achieve simple processing technology, improved anti-corrosion and flame retardancy, and environmental protection The effect of permeability
Inactive Publication Date: 2015-08-26
王玉燕
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However, due to long-term contact with oxygen, light, and moisture, wood is prone to shrinkage and swelling, poor dimensional stability, and easy to change color, crack, wear and bruise, and is also easy to burn and be eaten by insects and bacteria.
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[0014] The technical solutions of the present invention will be further described below in conjunction with specific preferred embodiments.
[0015] A method for producing modified wood containing nano-alumina, comprising the following steps:
[0016] (1) Wood pretreatment: After peeling and sawing the log into required size specifications, dry it at 50°C-80°C for 8-24 hours, and control the moisture content of the wood to 8%-25%. Then microwave treatment for 10-30 minutes; wherein, the log is suitable for any wood, including poplar, birch, nanmu, eucalyptus, fir, pine and the like.
[0017] (2) Prepare wood modifier: Add 15-25 parts by mass of nano-alumina, 2-6 parts by mass of polyethylene glycol and 0.5-1 part by mass of aluminum-titanium composite coupling agent OL-AT1618 into the mixer, and then Add 300-450 parts by mass of distilled water, start the agitator and stir at a high speed of 3000-6000r / min for 10-50 minutes, then add 10-15 parts by mass of disodium octaborate...
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Abstract
The invention discloses a nano alumina-containing modified wood production method including five steps of wood pretreatment, preparation of a wood modification agent, preparation of a wood modification fluid, dipping treatment and post drying treatment, the wood modification agent comprises nano alumina, polyethylene glycol (peg), aluminum and titanium compound coupling agent OL-AT1618, distilled water, sodium octaborate, diammonium phosphate, boric acid, carbendazim, dodecyl dimethyl benzyl ammonium chloride, sodium dodecyl benzene sulfonate and silicon sol, and the particle size of the nano alumina is in the 1-100 nm range. The beneficial effect is that the nano alumina-containing modified wood has the advantages of simple process, high efficiency, environmental protection, strong permeability, stable performance, even composite and the like, and the surface hardness, smoothness, wear resistance, cold and hot fatigue, fracture toughness, good processing properties, dimension stability, anti-corrosion flame retardant properties and the like of the treated wood are improved obviously.
Description
technical field [0001] The invention relates to the technical field of wood production, in particular to a production method of modified wood containing nano-alumina. Background technique [0002] As a natural and renewable resource, wood has the advantages of beautiful texture, natural color, comfortable texture, good plasticity, and easy processing, so it is used as an ideal material for building decoration and furniture manufacturing. However, due to long-term contact with oxygen, light, and moisture, wood is prone to shrinkage and swelling, poor dimensional stability, and easy to change color, crack, wear and bruise, and is also easy to burn and be eaten by insects. Therefore, the modification of wood has been widely concerned for a long time. Nano-alumina has the advantages of stable crystal phase, high hardness, and good dimensional stability. It can be used as an excellent toughening and reinforcing agent in various plastics, rubber, ceramics and other fields. The m...
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