Compound preservative for wood or wood products and preparation method and processing method thereof

A technology of composite preservatives and wood products, applied in impregnated wood, wood impregnation, wood processing utensils, etc., can solve the problems of pollution, easy loss, and decline in wood dimensional stability, and achieve simple preparation process, fixation rate and loss resistance sex high effect

Inactive Publication Date: 2011-05-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-borne wood preservatives use water as a solvent, low cost, clean treatment, no pungent smell, and no increase in flammability, but they are easy to lose during the use of preservative wood, and have poor fixation and loss resistance. Resources are polluted; and copper salt series anti-mildew preservativ

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh 80 kilograms of nano-silica, 15 kilograms of sodium octaborate, and 5 kilograms of didecyldimethylacetamide, and make a sol carrier under the condition of high-speed dispersion of nano-silica in water, and then mix sodium octaborate, two Decyldimethylacetate ammonium is made into an aqueous solution of the main agent, and finally the sol carrier and the aqueous solution of the main agent are fully stirred and mixed at room temperature to obtain the finished composite preservative.

[0027] The treatment method of this finished product preservative to wood board anticorrosion is as follows:

[0028] A. Put the prefabricated planks into the treatment tank and close the tank door;

[0029] B. Vacuumize to a vacuum degree of 0.05MPa±0.005MPa, and keep it for 30-60 minutes;

[0030] C. Inject the preservative of the present invention into the treatment tank under the above-mentioned vacuum state at normal temperature, pressurize to 1.0MPa and keep it for 1 hour, then ...

Embodiment 2

[0036] Weigh 90 kilograms of nano-silica, 5 kilograms of sodium octaborate, and 5 kilograms of didecyldimethylacetamide, and make a sol carrier under the condition of high-speed dispersion of nano-silica in water, then mix sodium octaborate, two Decyldimethylpropionate is made into an aqueous solution of the main agent, and finally the sol carrier and the aqueous solution of the main agent are fully stirred and mixed at room temperature to obtain the finished composite preservative.

[0037] Others are the same as in Example 1. The results of the toxicity test on decaying bacteria show that the mass loss rate of the board treated with the wood protective agent is 2.5% after being attacked by the wood decaying fungus; Performance is improved compared to pre-processed material.

Embodiment 3

[0039] Weigh 75 kilograms of nano-silica, 15 kilograms of sodium octaborate, and 10 kilograms of didecyldimethylacetate ammonium, and make a sol carrier under the condition of high-speed dispersion of nano-silica in water, and then sodium octaborate, two Decyldimethylacetate ammonium is made into an aqueous solution of the main agent, and finally the sol carrier and the aqueous solution of the main agent are fully stirred and mixed at room temperature to obtain the finished composite preservative.

[0040] Others are the same as in Example 1. The results of the toxicity test on decaying bacteria show that the mass loss rate of the board treated with the wood protective agent is 1.2% after being attacked by the wood decaying fungus; Performance is improved compared to pre-processed material.

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PUM

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Abstract

The invention discloses a compound preservative for wood materials, which is prepared by the following raw materials by weight percent: 60-90% of nano-carrier, 5-25% of boron type compound and 5-15% of quaternary ammonium salt; the preparation method comprises the following steps: preparing the nano-sol carrier, preparing water solution of the boron type compound and the quaternary ammonium salt and preparing a finished product; when in use, wood or a wood product is placed in a treatment tank for vacuum pumping, the compound preservative is injected at normal temperature, then the vacuum pumping is further performed on the treatment tank, the vacuum is finally removed, and the treatment is performed once to three times for getting the antiseptic wood or the wood product. The preparation method of the preservative for the wood materials is simple, and the operation is easy; furthermore, the preservative is harmless to people and animals, does not pollute the environment during the production process and the using process, is strong in fixation and anti-loss performance, does not affect the appearance, the mechanical properties and the processing performance of the wood material to be processed, and can be used for antiseptic and anti-insect protection of the wood and building wood structures for indoor and outdoor decoration.

Description

technical field [0001] The invention relates to a nano-carrier composite capable of preservative wood materials, and also relates to a preparation method of the composite preservative and a method for treating wood and wood products with the preservative. Background technique [0002] Timber is one of the important raw materials for national construction and people's daily necessities. It is widely used in the manufacture of construction, decoration materials and furniture. Since wood is a natural organic material with obvious biological characteristics, it is easy to be attacked and decayed by bacteria, insects and other organisms, which limits its application. Wood preservative technology can improve the service life and use efficiency of wood, and is one of the most effective ways to save wood resources. However, the anti-mildew and anti-corrosion of wood has always been a difficult problem in the process of wood processing, and many scholars have studied the theory and ...

Claims

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Application Information

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IPC IPC(8): B27K3/52B27K3/08
Inventor 赖俊英钱晓倩詹树林方明晖钱匡亮孟涛张津践
Owner ZHEJIANG UNIV
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