Musical instrument fingerboard wooden material and preparation method and acoustic functional body impregnation solution thereof

A technology of wood materials and functional bodies, applied in wood impregnation, wood compression, wood treatment, etc., can solve the problems of incomparable with natural wood, no real wood feeling, sound quality impact, etc., to achieve uniform appearance color difference, good sound quality, water content rate and density controllable effect

Active Publication Date: 2017-10-24
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former ABS plastic fingerboard is not comparable to natural wood in terms of appearance, feel and sound quality
Although the latter laminated wood is close to natural wood in appearance, feel and sound quality, it is similar to plywoo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Mix 686.7g of 2-furanmethanol, 61.8g of boric acid, 9.8g of phosphoric acid and 15.4g of carbon tetrachloride, then add 10.1g of triethylamine dropwise, and react at 40°C for 6 hours. After filtration, The obtained solution A is ready for use; then 3.8g of 1,2,3,4-butane tetracarboxylic acid and 37.9g ​​of carboxylated single-walled carbon nanotubes are dissolved and dispersed in 100mol ethanol, and then added to solution A and mixed thoroughly for 30 minutes to obtain The required acoustic functional body immersion liquid;

[0027] 2) Saw the radiata pine wood with a moisture content of 5% in the shape of a cuboid with a width and thickness of 400mm*30mm*10mm along the tangential direction, and immerse it in the acoustic functional body immersion solution obtained in step 1) at 20°C for 6 hours ;

[0028] 3) Take out the impregnated wood in step 2) and drain it, and pretreat it with a microwave with a power of 400 watts for 3 minutes, so that the monomer molecules ...

Embodiment 2

[0032] 1) Mix 833.8g of 3-furandimethanol, 6.2g of boric acid, 97.9g of phosphoric acid and 153.8g of carbon tetrachloride, then add 101.1g of triethylamine dropwise, react at 50°C for 5 hours, and filter , the resulting solution A is ready for use; then 7.5g of 1,2,3,4-butanetetracarboxylic acid and 93.7g of carboxylated multi-walled carbon nanotubes are dissolved and dispersed in 120mol ethanol, then added to solution A and mixed thoroughly for 35 minutes, That is, the required acoustic functional body immersion solution is obtained;

[0033] 2) Saw Chinese fir wood with a moisture content of 6% in the shape of a cuboid with a width and thickness of 450mm*35mm*12mm along the chord direction, and dip it in the acoustic functional body immersion solution obtained in step 1) for 8 hours at 25°C;

[0034] 3) Take out the impregnated wood in step 2) and drain it, and pretreat it with a microwave with a power of 450 watts for 4 minutes, so that the monomer molecules in the acousti...

Embodiment 3

[0038] 1) Mix 1065.1g 2-furan ethanol, 30.9g boric acid, 48.9g phosphoric acid and 76.9g carbon tetrachloride, then add 50.6g triethylamine dropwise, react at 60°C for 4 hours, after filtering, The resulting solution A is ready for use; then 11.4g of 1,2,3,4-butane tetracarboxylic acid and 137.4g of graphene oxide are dissolved and dispersed in 150mol ethanol, then added to solution A and mixed for 30 minutes to obtain the desired Acoustic functional body immersion liquid;

[0039] 2) Cut cedar wood with a moisture content of 6% into a cuboid shape with a width and thickness of 400mm*30mm*10mm along the tangential direction, and immerse it in the acoustic functional body immersion solution obtained in step 1) for 10 hours at 25°C ;

[0040] 3) Take out the impregnated wood in step 2), drain it, and heat it at 60°C for 4 hours, so that the monomer molecules in the acoustic functional body form oligomers with a molecular weight of 1500-3500, and then under a pressure of 3.0MPa,...

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Abstract

The invention relates to a preparation method of a musical instrument fingerboard wooden material. The method comprises the following steps that a furan compound with alcoholic hydroxyl groups, boric acid, phosphoric acid and carbon tetrachloride are mixed, triethylamine is dropwise added into the mixture, all the substances react sufficiently, and a solution is obtained; 1,2,3,4-butanetetracarboxylic acid and a carbon nanomaterial are added into the solution, and a needed acoustic functional body impregnation solution is obtained; needed wood is introduced through impregnation, pretreatment is conducted through microwaves with certain power or heating to enable oligomers to be formed in an acoustic functional body, and then hot-pressing treatment is conducted; and finally, the hot-pressed wood is dried in vacuum and then sliced and polished after being cooled, and the musical instrument fingerboard wooden material is obtained. The invention further relates to the musical instrument fingerboard wooden material prepared through the method. According to the musical instrument fingerboard wooden material prepared through the method, the moisture content and density can be controlled, the color difference is uniform, the solid wood texture is strong, the acoustic vibration performance is comparable with that of natural wood, the sound quality is good, and the musical instrument fingerboard wooden material can be used for replacing endangered precious natural wood.

Description

technical field [0001] The invention relates to a material preparation method, in particular to a musical instrument fingerboard wood material, a preparation method thereof and an impregnating liquid for an acoustic functional body. Background technique [0002] At present, the fingerboards of musical instruments are mostly made of natural and precious woods such as African ebony and rosewood with high density and good quality. The country has started a logging embargo. Moreover, natural wood has a long growth cycle, and as the resources of this type of wood decrease year by year, the cost of the fingerboard of musical instruments increases gradually. [0003] In addition, due to the nature of natural wood, its drying cycle is long; the fretboard of the musical instrument is selected for the specific material of the wood texture, resulting in a low overall utilization rate of the wood; the color difference of different positions of the natural wood varies greatly, which is ...

Claims

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Application Information

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IPC IPC(8): B27K3/02B27K3/00B27K3/52B27K5/00B27M1/02B27M3/00
CPCB27K3/007B27K3/02B27K3/52B27K5/001B27K5/0055B27M1/02B27M3/00
Inventor 吕少一李善明彭立民傅峰陈志林姜鹏
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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