Pulp detection performance and detection method

Pulp is the raw material used to make paper, cardboard and other paper products, and is generally extracted from plant fibers such as wood, waste paper, bagasse, and straw. The quality of the pulp has a great influence on the quality and performance of the final paper product, so the performance of the pulp needs to be tested.

Detection performance

The performance testing of pulp can include the following aspects:

1. Fiber length and width: The length and width of the fiber in the pulp have a great influence on the quality and performance of the paper, so it needs to be tested. Generally, the length and width of the fiber can be measured by an optical microscope or an electron microscope.

2. Fiber strength: The fiber strength in pulp is a key factor affecting the strength and toughness of paper. Fiber strength measurement can be performed by equipment such as fiber tensile Testers.

3. Contaminant content: Pulp may contain various pollutants, such as wood particles, chemical residues, etc., which need to be tested. Common pollutant content test methods include combustible substance content, chloride ion content, iron ion content, pH value, etc.

4. Moisture content: The moisture content of the pulp has a great influence on the strength and performance of the paper, so it needs to be tested. The measurement of moisture content can be carried out by heating and weighing.

5. Viscosity and pH: The viscosity and pH of pulp are also important factors affecting the quality and performance of paper. The measurement of viscosity and pH can be carried out by corresponding test instruments.

6. Fiber distribution: The distribution of fibers in the pulp also affects the quality and performance of the final paper. Measurement of fiber distribution can be performed by equipment such as microscopes, image analyzers, etc.

Detection method

Specific pulp performance test methods include the following:

1. Fiber Length and Width Measurement: Use a microscope or electron microscope to measure the length and width of fibers. Observe fibers under a microscope and use a pixel analyzer or other software to measure fiber length and width.

2. Fiber Strength Test: Use equipment such as a fiber tensile Tester to measure the strength of fibers. Fix the fiber sample on the tensile Tester and perform a tensile test to measure indicators such as its maximum tensile force and elongation at break.

3. Contaminant content test: Use chemical analysis instruments to measure the pollutant content in pulp, such as combustible material content, chloride ion content, iron ion content, pH value, etc.

4. Moisture content testing: Use heating and weighing to measure the moisture content in pulp. Heat the pulp sample to a certain temperature, then weigh it to calculate the moisture content.

5. Viscosity and pH testing: Use equipment such as viscometers and pH meters to measure the viscosity and pH of pulp.

6. Fiber distribution test: Use microscopes, image analyzers and other equipment to measure the distribution of fibers in the pulp. Observe the distribution of fibers in the pulp, and use the corresponding software for image analysis.

NBCHAO reminds you: Different test methods may require different equipment and test conditions. Tests should be carried out in professional laboratories or testing institutions, and relevant standards and regulations should be followed to ensure the accuracy and reliability of test results. In addition, safety matters need to be paid attention to during the test, such as preventing chemical leakage, fire, etc.