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Method for measuring shearing bond strength between fibers

A combination of strength and fiber measurement technology, applied in paper testing, special data processing applications, instruments, etc., can solve the problems of time-consuming and labor-consuming measurement, difficult operation, complex instrument measurement, etc., to achieve good adaptability, easy implementation, and operation simple effect

Inactive Publication Date: 2007-09-26
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above researchers have all studied the influence of beating degree on the shear bond strength of a single fiber, and the designed instrument measurement is very complicated and difficult to operate, and the measurement is time-consuming and labor-intensive.

Method used

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  • Method for measuring shearing bond strength between fibers
  • Method for measuring shearing bond strength between fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] The slurry used in this embodiment is: bleached Canadian kraft pine pulp

[0034] The experimental instruments and equipment used include:

[0035] LabTech PFI Mill;

[0036] Standard Fiber Disperser;

[0037] Shaw beating degree meter;

[0038] LabTech transcriber;

[0039] Mesmer standard sheet press;

[0040] FS~200 fiber analyzer;

[0041] OLYMPUS microscope;

[0042] Lorentoen & Wettre tensile strength tester;

[0043] TechniBriten Miroo TB~1C whiteness meter;

[0044] PUCMAC Z~Span1000 zero-distance tensile strength tester;

[0045] The experimental process of this embodiment includes:

[0046] 1) Pulp preparation: Soak the pulp board in water for 12 hours, tear it up, sieve the pulp with a screener, keep the long fibers, and dehydrate for later use.

[0047] 2) Beating: Measure the water content, take 30g dry pulp, beat it with a PFI mill, measure the beating degree and fiber length L, circumference P, and thickness c.

[0048] 3) Copying: Copying the ...

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Abstract

This invention provides one method to test fiber shear combination intensity, which comprises the following steps: a, under certain humidity pressure or slurry intensity to test fiber shape parameter k; b, measuring paper zero distance stretching intensity Z and T and light diffusion parameter S; c, computing train combination intensity index; d, drawing train combination index of PBSI and light diffusion parameters relation pattern; e, computing shear combination intensity of b value by relation pattern. This invention combines light diffusion parameter test technique for one simple measurement of single fiber shear combination intensity.

Description

technical field [0001] The invention relates to a measuring method in pulping and papermaking, in particular to a method for measuring shear bonding strength between fibers. Background technique [0002] In the field of pulp and papermaking, it is difficult to measure the shear bond strength between microscopic fibers and fibers for the measurement of shear bond strength. Now it is more common to measure the macro bond strength of paper to reflect the shear bond between fibers. Cut the size of the bonding strength. The measurement methods mainly include macroscopic measurement method (multi-fiber measurement method) and microscopic measurement method (single fiber measurement method); in terms of macroscopic measurement method, the most prominent ones are: Z-directional bonding strength measurement method (Z~directional TensileTest), Paper delamination measurement method (Delamination Test), Scott bond strength measurement method (ScottBond Test), in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/34G06F19/00
Inventor 刘焕彬陶劲松闫东波陈小泉朱小林
Owner SOUTH CHINA UNIV OF TECH
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