Novel filter paper for conventional chemical detection of flue gas and preparation method of novel filter paper

A flue gas and filter paper technology, applied in chemical instruments and methods, filter paper, separation methods, etc., can solve problems such as polluting the working environment and damaging the health of workers

Active Publication Date: 2019-04-09
CHINA NAT PULP & PAPER RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, glass fiber filter paper is prone to produce glass dust in the raw materials and production process, which will pollute the working environment, damage the health of workers, and cause various occupational diseases including pneumoconiosis.

Method used

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  • Novel filter paper for conventional chemical detection of flue gas and preparation method of novel filter paper

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Experimental program
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Effect test

preparation example Construction

[0033] The present invention also provides a method for preparing glass fiber filter paper for routine chemical detection of flue gas according to the above technical scheme, which includes the following steps:

[0034] Mixing synthetic chemical fiber with water for disintegration treatment to obtain synthetic chemical fiber slurry;

[0035] Mixing glass fiber with water for disintegration treatment to obtain glass fiber slurry;

[0036] Mixing the synthetic chemical fiber slurry, glass fiber slurry, adhesive fiber latex, wet strength agent and dispersant to obtain a mixed slurry;

[0037] The mixed slurry is subjected to wet molding to obtain filter paper for routine chemical detection of flue gas.

[0038] In the invention, the synthetic chemical fiber is mixed with water for disintegration treatment to obtain the synthetic chemical fiber slurry. In the present invention, the concentration of the synthetic chemical fiber slurry is preferably 2 to 3.5 wt%. The present invention has n...

Embodiment 1

[0046] The raw materials for preparing filter paper for routine chemical detection of flue gas include synthetic chemical fiber, glass fiber, latex for bonding fiber, wet strength agent, dispersant and water; among them, based on the weight fraction of dry fiber, synthetic chemical fiber (polyester fiber, Skin-core structure, diameter 2dex, length 6mm, skin softening temperature 110℃) the addition amount is 50 parts, the addition amount of glass fiber (1#, diameter 15.0μm, length is 3mm) is 25 parts, glass fiber (2#, The addition amount of 1.5μm in diameter and 6mm in length) is 15 parts, the addition amount of glass fiber (3#, 0.8μm in diameter and 6mm in length) is 10 parts, and the latex for bonding fiber (vinyl acetate, Tg=5℃) ) The addition amount is 6.0% of the weight of the bone dry fiber, the wet strength agent (polyamide epichlorohydrin resin) is 0.1% of the weight of the bone dry fiber, and the addition amount of the dispersant (polyethylene oxide) is 0.7 of the weight...

Embodiment 2

[0052] The raw materials for preparing filter paper for routine chemical detection of flue gas include synthetic chemical fiber, glass fiber, latex for bonding fiber, wet strength agent, dispersant and water; among them, based on the weight fraction of dry fiber, synthetic chemical fiber (polypropylene fiber , Side-by-side structure, diameter 1.5dex, length 3mm) add 20 parts, glass fiber (1#, diameter 20.0μm, length 3mm) add 50 parts, glass fiber (2#, diameter 2μm, length is The addition amount of 10mm) is 30 parts, the addition amount of the adhesive fiber latex (acrylic resin, Tg=45℃) is 10.0% of the weight of the bone-dry fiber, and the wet strength agent (polyamide epichlorohydrin resin) is the bone-dry fiber 0.3% by weight, and the added amount of dispersant (polyethylene oxide) is 0.5% by weight of the bone dry fiber.

[0053] The method for preparing filter paper for routine chemical detection of flue gas includes the following steps:

[0054] Mix glass fiber with water for...

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Abstract

The invention provides a novel filter paper for conventional chemical detection of a flue gas and a preparation method of the novel filter paper. Compared with a traditional glass fiber filter paper,the novel filter paper provided by the invention has more excellent mechanical properties; and parts of glass fibers are replaced with synthetic chemical fibers, so that the pollution in a productionprocess is low, and hazards to the environment and human bodies are reduced. The preparation method of the glass fiber filter paper for conventional chemical detection of the flue gas is simple and convenient in production way; and the prepared glass fiber filter paper for conventional chemical detection of the flue gas is high in strength and filtering efficiency, low in filtering resistance, resistant to organic solvents such as benzene, ethanol and isopropanol and capable of precisely analyzing harmful substances in the detected flue gas due to the coordination with an extractor hood.

Description

Technical field [0001] The invention relates to the field of filter materials, in particular to a novel type of filter paper for routine chemical detection of flue gas and a preparation method thereof. Background technique [0002] In order to be able to quantify the harmful substances that people inhale during smoking, the national standards GB / T 23356-2009, GB / T 23203.1-2013, GB / T 23355-2009, and GB / T 19609-2004 respectively stipulate the detection of smoke in smoke. Methods for determination of carbon monoxide, moisture, nicotine, total phase particulate matter and tar. The above national standards use a smoking machine that meets the requirements of GB / T 16450-2004, with filter paper for testing. In order to ensure the accuracy of the test results, the filter paper used in the test process should meet the following requirements: [0003] 1). When testing the total phase particles and nicotine content, ensure that the retention rate of the filter paper meets the requirements; ...

Claims

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Application Information

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IPC IPC(8): D21H27/08D21F11/14D21H21/20D21H21/08
CPCD21F11/14D21H21/08D21H21/20D21H27/08
Inventor 万莹陈雪峰刘文
Owner CHINA NAT PULP & PAPER RES INST CO LTD
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