Preparation method of modified PPS (polyphenylene sulfide) yarn

A polyphenylene sulfide and yarn technology, which is applied in the field of preparation of modified polyphenylene sulfide yarn, can solve the problems of resource consumption, weight increase, poor oxidation resistance, etc., so as to reduce its own weight and improve heat resistance. Effect

Inactive Publication Date: 2018-07-27
山东飞薄新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still has poor oxidation resistance at high temperatures, and at the same time cannot resist the erosion of strong oxidants such as concentrated sulfuric acid and nitric acid, and is prone to deformation and melting at high temperatures. Determine the filter material, if it is coal with high sulfur content, you need to use PPS + PTFE composite filter material or modified PPS filter material
On the premise of ensuring the dust removal efficiency, the use of composite filter materials will increase its weight, which will inevitably cause unnecessary resource consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Embodiment: In order to further illustrate the content of the invention, the present invention can be illustrated through the following specific implementation cases.

[0023] Step 1, preparation of yarns, select 2D / 51mmPPS chopped fibers to make 20S single yarns through ring spinning, and make 20S / 2 yarns through plying, and the winding volume is 1kg / piece.

[0024] Step 2: Put the bobbins in a 6000L steam heating tank with a bottom-extending agitator, and the total processing capacity is 1000 per tank.

[0025] Step 3, configure the treatment liquid in another preparation tank. The specific method is to dissolve sodium borate in 45% acetic acid solution to form a saturated solution. The total amount of the solution is 5000L, and add hydrochloric acid to adjust the pH value to 2.0. Simultaneously 200kg sodium percarbonate is placed on the top feeding port limit of heating tank for subsequent use.

[0026] Step 4, move the configured solution into the yarn processing t...

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Abstract

The invention relates to a preparation method of modified PPS (polyphenylene sulfide) yarn. The modified PPS yarn is fiber or yarn prepared after a short PPS fiber material is spun and modified with aliquid phase treatment agent. The special fiber and yarn material is prepared from the short PPS fiber modified with a chemical method and can adapt to the requirement of a high-temperature filter material technology. The material has good temperature resistance, corrosion resistance and oxidation resistance, and the filtration efficiency of a filter material is improved.

Description

Technical field: [0001] This patent relates to a preparation method of modified polyphenylene sulfide (PPS) yarn, specifically a technology for modifying PPS yarn. Background technique: [0002] With the strengthening of my country's environmental protection efforts, the government's efforts to control air pollution have further increased. Coal-fired power plant emissions, as one of the main sources of industrial waste gas emissions, have received unprecedented attention. The emission standard has been raised from 30mg / Nm³ to 20-10mg / Nm³, and 5mg / Nm³ in some areas. As the main technology to control dust particles, the bag dust removal technology has become the main technology for filtering and dust removal in coal-fired power plants because of its good dust emission control effect. According to statistics, as of the end of 2016, my country's installed power generation capacity reached 1.65 billion kilowatts, of which coal power installed capacity was 940 million kilowatts; ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/82D06M11/50D06M13/188D02G3/02B01D46/02D06M101/30
CPCB01D46/02D02G3/02D06M11/50D06M11/82D06M13/188D06M2101/30D10B2331/301
Inventor 徐春鹰
Owner 山东飞薄新材料科技有限公司
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