A Method for Quickly Determining the Ash Content of Filled Paper Using Cassette Furnace

Abstract

The invention discloses a method for quickly measuring the ash content of filled paper by adopting a cassette furnace. Firstly, the filled paper is cut into a plurality of paper strips with the same size, and then the paper strips are completely overlapped and folded in half along the length direction to obtain a half-folded paper sample. Finally, the angle is controlled at 70 to 145 degrees; then weigh the weight of the folded paper sample and the burning device used to place the folded paper sample; then put the folded paper sample into the burning device and place the entire burning device on a cassette furnace for burning for a certain period of time. Then take off the combustion device and cool it in the air for a certain period of time, then put it in a desiccator to cool, and weigh the weight of the combustion device after cooling; finally calculate the ash content of the filling paper through the formula. The invention has fast determination of ash content and accurate data, which can fully meet the needs of rapid determination of paper ash content in production and scientific research.

Description

technical field [0001] The invention relates to a technique for measuring the ash content of paper, in particular to a method for quickly measuring the ash content of filled paper by using a cassette furnace. Background technique [0002] At present, the standard method for measuring the ash content of paper is to measure the ash content by burning the paper sample through a muffle furnace at 525°C or 900°C and then weighing the residue. However, the traditional muffle furnace uses resistance wire heating. The heating process is slow, the ashing time and energy cost are high, and the gas will be emitted during the working process to pollute the working environment. At the same time, the muffle furnace has uneven temperature distribution in the furnace, low temperature near the furnace mouth, large temperature fluctuations, and large temperature deviations. Problem: X-ray diffraction analysis can be used to accurately analyze paper elements, but this instrument is expensive, ...

AI Technical Summary

Problems solved by technology

[0002] At present, the standard method for measuring the ash content of paper is to measure the ash content by burning the paper sample through a muffle furnace at 525°C or 900°C and then weighing the residue. However, the traditional muffle furnace uses resistance wire heating. The heating process is slow, the ashing time and energy cost are high, and the gas will be emitted during the working process to pollute the working environment. At the same time, the muffle furnace has uneven temperature distribution in the furnace, low temperature near the furnace mouth, large temperature fluctuations, and large temperature deviations. Problem: X-ray diffraction analysis can be used to accurately analyze paper elements, but this instrument is expensive, requires temperature control, and humidity control, and is not suitable for laboratory environments; paper is cut into strips of a certain size and then burned in the air It is a fast and fast method for the rapid determination of paper ash, but it cannot completely burn the organic matter in the paper by this method, and the stability of the measured data is poor, and the environmental factors are greatly affected

Images