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Preparation method of heat-resistant polyphenylene sulfide fiber

A polyphenylene sulfide fiber, polyphenylene sulfide technology, applied in the direction of fiber type, fiber treatment, fiber chemical characteristics, etc., can solve the problems of filter bag strength loss, fiber oxidation, reduction of dust removal effect and service life, etc. Reasonable, accurate and detailed results

Inactive Publication Date: 2011-10-19
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] However, it is found in use that due to the macromolecular structure of PPS fibers, the use temperature is higher than 180°C, and the oxidation of the fibers is serious, resulting in a loss of 30%-55% of the strength of the filter bag, which is difficult to meet the working conditions of 190°C-230°C Conditions, greatly reducing its dust removal effect and service life

Method used

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  • Preparation method of heat-resistant polyphenylene sulfide fiber
  • Preparation method of heat-resistant polyphenylene sulfide fiber
  • Preparation method of heat-resistant polyphenylene sulfide fiber

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Embodiment Construction

[0079] The present invention will be further described below in conjunction with accompanying drawing:

[0080] figure 1 As shown, it is a diagram of the working state of the twin-screw extruder, and the positions of each part must be correct, proportioned according to the amount, and operated in sequence.

[0081] Quantities of the chemical substances and materials used in the preparation are determined according to a preset range, with grams, milliliters, and centimeters as measurement units.

[0082] The preparation of silica + polyphenylene sulfide masterbatch is carried out on a twin-screw extruder, which is completed under the conditions of heating, electric metering feeding, twin-screw extrusion, water cooling, and pelletizing by a pelletizer; Place the twin-screw 15 on the top of the base 25 of the extruder 26. The twin-screw 15 is left and right meshing connection, and the two screws are meshed in the same direction. The screw motor 14 is on the left side of the twin...

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Abstract

The invention relates to a preparation method of heat-resistant polyphenylene sulfide fiber, comprising the following steps: aiming at the demand on high-performance industrial fabric, adding silica to a polyphenylene sulfide material, preparing masterbatch, extruding by double screws to form strips, dicing, drying in vacuum, extruding and spinning by a single screw, cooling, applying oil to an oil roller, thermally sizing, and winding to form a wire barrel to finally obtain heat-resistant silica and polyphenylene sulfide fiber, namely, SiO2 / PPS fiber, wherein the fiber is white long silk, the fineness is 400dtex, the breaking strength is 3.75 cN / dtex, the heat resistance temperature is 230 DEG C, and the silk has stable chemical and physical performances; the fiber can be used for manufacturing heat-resistant, corrosion-resisting dedusting filter bags and the like, which has high demand on the breaking strength; the preparation method has advanced and remarkable technology and accurate and detailed quantity parameters, and is capable of performing large-scale industrial production; and the preparation method is a very ideal preparation method of the heat-resistant polyphenylene sulfide fiber.

Description

technical field [0001] The invention relates to a preparation method of heat-resistant polyphenylene sulfide fiber, belonging to the technical field of high-performance chemical fiber manufacture and application. technical background [0002] Polyphenylene sulfide fiber, referred to as PPS fiber, is a chemical fiber with excellent performance. It has good chemical corrosion resistance, flame retardancy, insulation, temperature resistance, dimensional stability and textile processability, and is widely used. In metallurgy, building materials, electric power, chemical industry and other industries, it is the preferred textile material for steel mills, cement plants, thermal power plants, waste incineration stations, and high-temperature dust removal filter bags. [0003] However, it is found in use that due to the macromolecular structure of PPS fibers, the use temperature is higher than 180°C, and the oxidation of the fibers is serious, resulting in a loss of 30%-55% of the s...

Claims

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Application Information

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IPC IPC(8): D01F6/94D01D1/04D01D5/088D01D5/12D01D10/02D01D10/06D06M15/53D06M13/256D06M13/224D06M101/30
Inventor 张蕊萍牛梅盛向前戴晋明杨晗高立斌李世焕
Owner TAIYUAN UNIV OF TECH
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