Paper Fiber
morphology test
According to GB/T 4688 "analysis of paper, cardboard and paper pulp fiber, GB/T 22836 pulp fiber broom rate determination" regulation test.
B. 1 fiber analyzer to determine the fiber morphology index
1. The fiber relief.According to samples from about 0.1 g oven dry, along the fiber direction to tear loose samples, try to avoid to cut off the fiber.Soak in a certain amount of distilled water for a period of time, and then in the distributor for relief, until the fiber dispersed completely, there is no fiber floccules.Scatter to relief the fiber suspension and cleaning device of distilled water is transferred to a beaker, diluted to mL (100-200), stir well.
Note: for measuring fiber coarseness, quantitative sample should be accurate.
2. The computer test.Put sample into the beaker in the sample of a fiber tester, the corresponding sample on the computer interface to set parameters and input the sample name and type, etc.Set up the corresponding parameter, click the test button to begin testing.Each sample test three times.
B. 2 fiber measuring instrument for fiber composition, morphological analysis
Watch the preparation of test pieces: 1. The fiber sample a few representative wet slurry samples, on a glass slide, plus two drops of iodine zinc chloride (Herzberg) or Graff dye "C" stain, use tweezers and anatomical needle spread fiber evenly, cover glass with a filter from the cover glass edge slowly absorb excess stain, fiber sample specimens observation under microscope stage, adjusted the focus, can be in the liquid crystal display of digital camera microscope observed the morphology of the tested fiber image.Each fiber sample observation try next film containing 300-400 fiber is advisable.
2. Enter the column of "fiber broom change rate determination, to determine the broom turn end number: control fiber broom standard drawing, under the microscope by observe fiber end broom of the root morphology, determine the broom series, and statistics with rate.
According to GB/T 4688 "analysis of paper, cardboard and paper pulp fiber, GB/T 22836 pulp fiber broom rate determination" regulation test.
B. 1 fiber analyzer to determine the fiber morphology index
1. The fiber relief.According to samples from about 0.1 g oven dry, along the fiber direction to tear loose samples, try to avoid to cut off the fiber.Soak in a certain amount of distilled water for a period of time, and then in the distributor for relief, until the fiber dispersed completely, there is no fiber floccules.Scatter to relief the fiber suspension and cleaning device of distilled water is transferred to a beaker, diluted to mL (100-200), stir well.
Note: for measuring fiber coarseness, quantitative sample should be accurate.
2. The computer test.Put sample into the beaker in the sample of a fiber tester, the corresponding sample on the computer interface to set parameters and input the sample name and type, etc.Set up the corresponding parameter, click the test button to begin testing.Each sample test three times.
B. 2 fiber measuring instrument for fiber composition, morphological analysis
Watch the preparation of test pieces: 1. The fiber sample a few representative wet slurry samples, on a glass slide, plus two drops of iodine zinc chloride (Herzberg) or Graff dye "C" stain, use tweezers and anatomical needle spread fiber evenly, cover glass with a filter from the cover glass edge slowly absorb excess stain, fiber sample specimens observation under microscope stage, adjusted the focus, can be in the liquid crystal display of digital camera microscope observed the morphology of the tested fiber image.Each fiber sample observation try next film containing 300-400 fiber is advisable.
2. Enter the column of "fiber broom change rate determination, to determine the broom turn end number: control fiber broom standard drawing, under the microscope by observe fiber end broom of the root morphology, determine the broom series, and statistics with rate.
A. 1 pulp pretreatment
Pulp board or lodicule: pulp board or lodicule tore into 20 mm ~ 30 mm pieces, weighing out enough to the preparation of 10 40 g/m2 (less than 97% to ensure the sample opacity) required amount of plasma samples.According to GB/T 24327 after soaked in water for 30 min, the provisions of the organization revolution should be able to completely separate the lowest organization fiber, finally pulp suspension will be diluted to 4 g/L.
In wet slurry: determination of serum concentrations, measure the right amount of volume.
A. 2 sample preparation
A. 2.1 ready after pretreatment of slurry, when residual ink erosion can be appropriately to join retention agent.
A. 2.2 funnel of of steps:
The grout mix into several portions, each containing 40 g/m2 sample preparation of slurry.Will be a piece of filter cloth in buchner funnel, wetting with water and make it is flat and level.Take a slurry into the funnel, suction filtering to mirror disappear.Should avoid sample of molded pulp pump, too much air.Remove funnel inversion and blowing out the pulp pattern, with a piece of filter paper, filter cloth off and then back into the funnel gently.In the upward direction standard sample a token (non stick surface of filter paper).According to the above method preparation of 10 specimens.
Preparation of good sample with good absorbent paper clip, in a pressurized machine, with about 300 kpa pressure pressure (1-2) min.After pressing the filter paper from the diverse sample put good again, in order to protect the sample.Then put the sample together with the filter paper hanging in clean air, dry moisture between 5% and 15% at room temperature, drying time should not be more than 24 h.
Placed by the filter paper to protect the sample pressure machine, in 300 kpa to 500 kpa pressure for about 30 s, make sample as smooth as possible.
A. 2.3 sheet forming was prepared
According to GB/T 24324 or GB/T 24326 manufacture paper with pulp sample, make quantitative sample for 60 g/m2, distilled water or purity considerable water should be used.Drying at room temperature by the filter paper to protect the specimen to 5-15%, water drying time should not be more than 24 h.
Note: quantitative sample of 60 g/m2, opacity may affect the effective residual ink ERIC value, advice manufacture paper with pulp quantitative sample to 40 g/m2.
Pulp board or lodicule: pulp board or lodicule tore into 20 mm ~ 30 mm pieces, weighing out enough to the preparation of 10 40 g/m2 (less than 97% to ensure the sample opacity) required amount of plasma samples.According to GB/T 24327 after soaked in water for 30 min, the provisions of the organization revolution should be able to completely separate the lowest organization fiber, finally pulp suspension will be diluted to 4 g/L.
In wet slurry: determination of serum concentrations, measure the right amount of volume.
A. 2 sample preparation
A. 2.1 ready after pretreatment of slurry, when residual ink erosion can be appropriately to join retention agent.
A. 2.2 funnel of of steps:
The grout mix into several portions, each containing 40 g/m2 sample preparation of slurry.Will be a piece of filter cloth in buchner funnel, wetting with water and make it is flat and level.Take a slurry into the funnel, suction filtering to mirror disappear.Should avoid sample of molded pulp pump, too much air.Remove funnel inversion and blowing out the pulp pattern, with a piece of filter paper, filter cloth off and then back into the funnel gently.In the upward direction standard sample a token (non stick surface of filter paper).According to the above method preparation of 10 specimens.
Preparation of good sample with good absorbent paper clip, in a pressurized machine, with about 300 kpa pressure pressure (1-2) min.After pressing the filter paper from the diverse sample put good again, in order to protect the sample.Then put the sample together with the filter paper hanging in clean air, dry moisture between 5% and 15% at room temperature, drying time should not be more than 24 h.
Placed by the filter paper to protect the sample pressure machine, in 300 kpa to 500 kpa pressure for about 30 s, make sample as smooth as possible.
A. 2.3 sheet forming was prepared
According to GB/T 24324 or GB/T 24326 manufacture paper with pulp sample, make quantitative sample for 60 g/m2, distilled water or purity considerable water should be used.Drying at room temperature by the filter paper to protect the specimen to 5-15%, water drying time should not be more than 24 h.
Note: quantitative sample of 60 g/m2, opacity may affect the effective residual ink ERIC value, advice manufacture paper with pulp quantitative sample to 40 g/m2.
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