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Preparation of a curved surface transparent wood

A technology of wood and curved surface, which is applied in the field of preparation of curved surface transparent wood, to achieve the effect of increasing added value, good mechanical properties, and high surface characteristics

Active Publication Date: 2022-01-25
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the few researches on transparent wood at present, there is no curved transparent wood, that is, to realize the flexible design of transparent wood.

Method used

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  • Preparation of a curved surface transparent wood
  • Preparation of a curved surface transparent wood
  • Preparation of a curved surface transparent wood

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Embodiment Construction

[0028] The present invention is further described below in conjunction with the examples, but the present invention is not limited to the following examples.

[0029] A kind of preparation of curved surface transparent wood is characterized in that, comprises the following steps:

[0030] 1) Fully wet the sample (fast-growing poplar, size 3cm×3cm×0.2cm) first;

[0031] 2) Put the wetted sample into 6% sodium hydroxide solution for pretreatment, the treatment temperature is 65°C, react for 1h, and then rinse with dedistilled water until neutral;

[0032] 3) The sample was then treated with 7% sodium chlorite under acidic conditions (pH 4) for 3 hours to obtain a complete delignified wood substrate sample;

[0033] 4) Replace the complete delignified wood substrate sample with distilled water to neutral, then take it out and freeze it in the freezer for 3 hours;

[0034] 6) Dry the frozen samples in a freeze dryer for 5 hours to obtain a soft delignified wood substrate. The ph...

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Abstract

A preparation of curved transparent wood, the sample is pretreated in sodium hydroxide solution, washed to neutral; then treated with sodium chlorite solution under acidic conditions to obtain a complete delignified wood substrate sample; then frozen , dried, bent and molded to obtain a curved delignified wood substrate; impregnated into a high light-transmitting polymer with a refractive index similar to that of the fiber, and then cured and polymerized to obtain a curved transparent wood with excellent mechanical properties , high curvature, light transmittance can reach more than 85%, has high market application value.

Description

technical field [0001] The invention belongs to the technical field of wood technology development and modification, and in particular relates to the preparation of curved transparent wood. Background technique [0002] In theory, if the colored substances such as lignin, pigment, tannin and resin in the wood are removed by physical and / or chemical methods, and then the material with the same refractive index is uniformly filled in the wood, so that the light does not occur or break when it passes through the wood. The purpose of transparency can be achieved with less refraction, reflection and scattering. In order to obtain high light transmittance of wood, it is necessary to remove lignin and other chromogenic substances as much as possible. However, when the removal rate of the chromogenic substance is high, the wood is very easy to disperse, and it is more difficult to further bend the wood with high curvature. Therefore, in the few studies on transparent wood at prese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/08B27H1/00B27K3/00B27K3/20B27K5/00B27K5/04B27K3/50B27K3/38B27K3/08
Inventor 殷学风田杏欢林涛段敏张希娟范晶李静袁枚田赵欢
Owner SHAANXI UNIV OF SCI & TECH