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Method for quickly predicting rattan cane anatomical property

A rapid and qualitative technology, applied in wood testing, color/spectral characteristic measurement, material inspection products, etc., can solve the problems of sample damage, unfavorable, complicated operation steps, etc., and achieve the effect of enhanced applicability and enhanced scope of application

Inactive Publication Date: 2008-11-05
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Abstract
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  • Application Information

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Problems solved by technology

This measurement method must be carried out under the premise of destroying the sample material and segregating and softening it with chemicals. The operation steps are complicated and time-consuming, which is easy to cause damage to the sample material and is not conducive to large-scale plantation wood fiber characteristics. Measurement

Method used

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Embodiment Construction

[0011] (1) Sample preparation, select a representative sample. When preparing the sample, the surface of the sample is required to be smooth and tidy, and the roughness is consistent, so as to minimize the error caused by collecting the spectrum. At the same time, the sample specifications must meet the requirements of spectrum collection, measurement of microfibril angle and fiber segregation with X-ray diffractometer (XRD). Sample Size Specification Air-dried wood and rattan samples are processed into samples with a length of 4.5cm (longitudinal) × 1.5cm (chord direction) × 1.5mm (radial direction), and the length of the rattan sample size is 4.5cm ( Longitudinal) × 1.5mm (radial) × D (chord) (5mm<D<1.5cm, depending on the specific diameter of the rattan) rattan wood chips. Put the processed sample or the sample that has been scanned for the microfibril angle into a constant temperature and humidity box for moisture content balance, usually the moisture content balance is 12...

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Abstract

The present invention relates to a method for quickly estimating the anatomical property of the wood material and vine material. The method comprises the steps of preparing sample, collecting the near infrared spectrum of visible light, measuring the character index, preprocessing the spectrum, establishing a model, and estimating the character index of the wood material and vine material at the same condition through a fiber length scaling model of wood material and vine material, and a microfiber angle scaling model of the wood material and vine material. The model obtained by the method according to the invention can quickly estimate the character index of the unknown wood material and vine material nondestructively, quickly, high-efficiently and environmentally friendly through once collection to the sample of wood material or vine material. The method according to the invention has advantages of no destruction, high speed, high efficiency, environment protection, time saving and labor saving.

Description

technical field [0001] The invention belongs to a method for quickly predicting the anatomical properties of wood and rattan. Background technique [0002] The microfibril angle of wood and palm rattan is the angle formed by the arrangement direction of the microfibrils in the S2 layer of the cell secondary wall and the main axis of the cell. It is one of the important physical quantities in the properties of wood and rattan. The elastic modulus and processing performance have a direct impact. The method of measuring the microfibril angle is now the most widely used non-destructive method is the X-ray diffraction method. Compared with other traditional methods, this method can measure the microfibril angle of hundreds of cells at a time, and obtain the average value as the wood And provide a basis for the application of rattan in the industrial field. Fiber morphological characteristics are an important material index of wood and rattan. The size of fiber morphological cha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/46G01N21/25G01N23/20
Inventor 江泽慧王玉荣费本华傅峰任海青覃道春刘杏娥
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY