Method used for detecting air purifying material purification efficiency

An air purification material and purification material technology, applied in the direction of analysis materials, measuring devices, instruments, etc., can solve the problems of damage to the paint film, large instrument volume, high contact probability, etc., and achieve the effect of easy operation and accurate and reliable results

Inactive Publication Date: 2016-01-13
叶氏化工研发(上海)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Defect: This method tests the formaldehyde gas released in the board, and uses water as the absorbent. If this method is used to test the formaldehyde purification efficiency of water-based paint, using water as the adsorbent will increase the humidity in the dryer and make it evaporate on the dryer. Part of the small droplets have a higher probability of contacting the wooden board coated with aldehyde-removing water-based paint, and the water-soluble co

Method used

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  • Method used for detecting air purifying material purification efficiency
  • Method used for detecting air purifying material purification efficiency
  • Method used for detecting air purifying material purification efficiency

Examples

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Embodiment 1

[0070] In this embodiment, the following method is used to test the purification efficiency of air purification materials on formaldehyde, including the following steps:

[0071] (1) Preparation of purification material samples and control samples: Coat the commercially available aldehyde-removing air purification materials on four 10cm×15cm polyethylene (PE) panels, and the amount is according to the theoretical coating amount provided by the product, and the temperature is (20 Dry for 7 days under the conditions of ±2)°C and relative humidity of (50±10)% as the purification material sample; use the polyethylene (PE) board not coated with commercially available dealdehyde air purification material as the control sample;

[0072] (2) Sample test: Choose a desiccator as a closed container, with a specification of 300mm. Place 6g of composite microcrystalline bamboo charcoal ceramic adsorbent in the bottom crystallization dish and flatten it. Place a sample plate coated with aldehyd...

Embodiment 2

[0088] In this embodiment, the influence of the application of different adsorption materials on the measured purification efficiency is investigated, and the method is as follows:

[0089] In the test method of this embodiment, composite microcrystalline bamboo charcoal ceramics, activated carbon, zeolite, silica gel, and molecular sieves were selected as adsorbent materials, and the test as described in Example 1 was performed respectively, and the test was repeated 4 times (different from the purification durability evaluation test , The repeated test is 4 parallel tests on the sample), the results are shown in Table 2.

Embodiment 3

[0096] In this embodiment, the following method is used to test the purification efficiency of air purification materials on formaldehyde, including the following steps:

[0097] (1) Preparation of purification material samples and control samples: The commercially available de-aldehyde air purification materials were coated on four 10cm×15cm polyethylene (PE) panels, and the amount was in accordance with the theoretical coating amount provided by the product, and the temperature was (20 Dry for 5 days under the condition of ±2)℃ and humidity of (50±10)% as a sample of purification material; use a polyethylene (PE) board not coated with a commercially available de-aldehyde air purification material as a control sample;

[0098] (2) Sample test: A desiccator is used as a closed container, with a specification of 300mm (. 6g of composite microcrystalline bamboo charcoal ceramic absorbent material is placed in the bottom crystallization dish and flattened. A sample plate coated with al...

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Abstract

The invention provides a method used detecting air purifying material purification efficiency. The method comprises following steps: a purifying material sample and a reference sample are prepared; an adsorbing material and the purifying material sample are delivered into a sealed container, a pollutant solution to be detected is delivered into a glass dish in the sealed container, the sealed container is sealed, and is unsealed after 12 to 48h of reaction, the adsorbing material is collected, and is subjected to desorption using a desorption solvent so as to obtain a desorption solution I; the reference sample is subjected to treatment same to that of the purifying material sample so as to obtain a desorption solution II; pollutant contents C1 and C0 of the desorption solution I and the desorption solution II are detected, and purification efficiency r of the purifying material is calculated based on a formula r=(C0-C1)/C0*100%. The method is simple; cost is low; the method is suitable for experimental application and industrial application, and is accurate and reliable; test results are stable; and reproducibility is high.

Description

Technical field [0001] The invention belongs to the field of material performance detection and relates to a method for testing the purification efficiency of air purification materials. Background technique [0002] With the development of our country’s economy and the continuous improvement of people’s living standards, people are paying more and more attention to room decoration. However, the various new decoration materials used for decoration and harmful substances in furniture may cause indoor air pollution and make air quality decline. According to the World Health Organization survey, more than 300 kinds of pollutants can be detected indoors, and the degree of indoor air pollution is often 2-5 times that of outdoors, and sometimes even more than 100 times. About 80% of a person's life is spent indoors, and the indoor environment is directly related to the health of residents. Indoor air pollution has been listed as one of the five major factors endangering human health ...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 刘婕妤沈明月陈超
Owner 叶氏化工研发(上海)有限公司
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