Preparation method of silver-bearing antibacterial polypropylene fiber

An antibacterial polypropylene, polypropylene fiber technology, applied in the direction of single-component polyolefin rayon, can solve the problems of antibacterial, anti-spill and processing performance to be improved, and achieve no effect on spinnability and mechanical properties , easy to operate, uniform and lasting effect of antibacterial agent

Inactive Publication Date: 2015-02-25
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN1060235C discloses a manufacturing method for preparing antibacterial polypropylene fiber by blending and spinning inorganic antibacterial imidazolines and polypropylene. This product has a significant inhibitory effect on various bacteria and has a long-lasting antibacterial effect; And 103937090A discloses a method for preparing antibacterial polypropylene fiber with plant extracts as an antibacterial agent. Natural antibacterial agents have certain antibacterial effects and are environmentally friendly and healthy, but antibacterial properties, spill resistance and processing performance all need to be improved
At present, there is no report of using sodium silver zirconium phosphate as an antibacterial agent to produce antibacterial polypropylene fiber

Method used

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  • Preparation method of silver-bearing antibacterial polypropylene fiber
  • Preparation method of silver-bearing antibacterial polypropylene fiber
  • Preparation method of silver-bearing antibacterial polypropylene fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 90 parts by weight of polypropylene slices and 10 parts by weight of sodium silver zirconium phosphate were uniformly mixed, then mixed and extruded into pellets through a twin-screw extruder, and the extrusion temperature was 170°C to obtain silver-containing antibacterial masterbatches. 20 parts by weight of the obtained antibacterial masterbatch and 80 parts by weight of polypropylene chips are blended and spun, the spinning temperature is 230°C, the metering pump specification is 0.6ml / r, the metering pump revolution is 10r / min, the spinneret hole diameter is 0.4mm, and the hole The number is 18, the winding speed is 400m / min, and the tow after winding is carried out 2 times of thermal drawing to obtain the silver-containing antibacterial polypropylene fiber with an antibacterial agent content of 2%.

[0025] The antibacterial polypropylene fiber of this embodiment is tested, and the result shows: this fiber fineness 4.0dtex, intensity 5.8cN / dtex, elongation at break...

Embodiment 2

[0027] 90 parts by weight of polypropylene slices and 10 parts by weight of sodium silver zirconium phosphate were uniformly mixed, then mixed and extruded into pellets by a twin-screw extruder, and the extrusion temperature was 180°C to obtain silver-containing antibacterial masterbatches. 2 parts by weight of the obtained antibacterial masterbatch and 98 parts by weight of polypropylene chips are blended and spun, the spinning temperature is 230°C, the metering pump specification is 0.6ml / r, the metering pump rotation speed is 10r / min, the spinneret hole diameter is 0.4mm, the hole The number is 18, the winding speed is 400m / min, and the tow after winding is carried out 4.0 times of thermal drawing to obtain the silver-containing antibacterial polypropylene fiber with an antibacterial agent content of 0.2%.

[0028] The antibacterial polypropylene fiber of this embodiment is tested, and the result shows: this fiber fineness 2.0dtex, intensity 7.5cN / dtex, elongation at break 1...

Embodiment 3

[0030] 90 parts by weight of polypropylene slices and 10 parts by weight of sodium silver zirconium phosphate were uniformly mixed, then mixed and extruded into pellets through a twin-screw extruder, and the extrusion temperature was 200°C to obtain silver-containing antibacterial masterbatches. 10 parts by weight of the obtained antibacterial masterbatch and 90 parts by weight of polypropylene chips are blended and spun, the spinning temperature is 220°C, the metering pump specification is 0.6ml / r, the metering pump revolution is 15r / min, the diameter of the spinneret hole is 0.4mm, the hole The number is 18, the winding speed is 400m / min, and the tow is drawn 3.5 times hot after winding to obtain a silver-containing antibacterial polypropylene fiber with an antibacterial agent content of 1%.

[0031] The antibacterial polypropylene fiber of this embodiment is tested, and the result shows: this fiber fineness 3.5dtex, intensity 6.1cN / dtex, elongation at break 15.0%, silver con...

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Abstract

The invention discloses a preparation method of a silver-bearing antibacterial polypropylene fiber. The preparation method is characterized by comprising the following steps: mixing 80-90 parts by weight of polypropylene slices and 10-20 parts by weight of silver-bearing antibacterial agent in a twin-screw extruder for extruding and granulating, thereby obtaining silver-bearing antibacterial master batch; evenly mixing 2-20 parts by weight of the obtained antibacterial master batch and 80-98 parts by weight of polypropylene slices and preparing the silver-bearing antibacterial polypropylene fiber by use of a common melt spinning method, wherein the linear density of the obtained fiber is controlled within the range of 2.0-10.0dtex, the strength of the fiber is 5.0-7.5cN/dtex, the breaking elongation of the protofilament is 10%-25%, the mass fraction of the silver-bearing antibacterial agent is 0.2%-4%, and the silver content is 100-3000ppm; the obtained silver-bearing antibacterial polypropylene fiber has the sterilizing rate of more than 98% to escherichia coli and staphylococcus aureus and is an ideal material for wound dressing bases.

Description

technical field [0001] The invention relates to a preparation method of silver-containing antibacterial polypropylene fiber, which belongs to the field of preparation of functional fibers. Background technique [0002] Polypropylene fiber, commonly known as polypropylene fiber, is produced by melt spinning. Industrial production officially began in 1957, and it is a rising star in synthetic fibers. Due to its simple production process, low relative density (0.91g / ml), low raw material and production costs, and high fiber strength, polypropylene is widely used in fishing nets, canvas, water hoses, and building reinforced industrial fabrics. Good, excellent hygienic performance, mildew and moth resistance, can be used to make carpets, mosquito nets, cotton wool, diapers, toys, clothes, and can also be used in medical and health fields. Therefore, polypropylene has developed rapidly and is currently the fourth largest variety of synthetic fibers. However, polypropylene fiber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F1/10
Inventor 刘鹏清曾栌贤徐建军叶光斗姜猛进王晓东
Owner SICHUAN UNIV
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