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A kind of surface hydrophilic pig hair fiber and its preparation method

A hydrophilic, pig hair technology, applied in animal fibers, fiber processing, textiles and papermaking, etc., can solve problems such as application limitations and unreported

Inactive Publication Date: 2020-04-07
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the hydrophobic and lipophilic properties of pig hair fiber, its application is limited
At present, there is no report on the research on the modification of pig hair to make materials with special wettability

Method used

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  • A kind of surface hydrophilic pig hair fiber and its preparation method
  • A kind of surface hydrophilic pig hair fiber and its preparation method
  • A kind of surface hydrophilic pig hair fiber and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Soak 1 g of washed waste pig hair fibers in 50 mL of aqueous solution (containing 0.1 g of sodium sulfite and 0.1 g of sodium lauryl sulfate); slowly raise the temperature of the solution to 50°C under shaking, and continue shaking at this temperature Shake for 3 hours. After cooling to room temperature, the pig hair fiber is taken out, rinsed with distilled water for 5-10 times, and vacuum-dried at 70° C. for 10 hours to obtain a pig hair fiber with hydrophilic surface.

[0027] The contact angle of the prepared pig hair fiber to diesel oil under water is 139.5°, and the contact angle to chloroform oil is 122.5°. Moreover, the surface hydrophilic pig hair fiber has special wettability of underwater oleophobicity.

Embodiment 2

[0029] Soak 10 g of washed waste pig hair fibers in 500 mL of aqueous solution (containing 2.5 g of sodium bisulfite and 1.5 g of fatty alcohol polyoxyethylene ether sulfate), and slowly raise the temperature of the solution to 70 °C under shaking , and continue shaking at this temperature for 2 hours. After cooling to room temperature, the surface-modified pig hair fiber was taken out, rinsed with distilled water for 5-10 times, and vacuum-dried at 60° C. for 12 hours to obtain a surface-hydrophilic pig hair fiber.

[0030] The contact angle of the prepared pig hair fiber to diesel oil under water is 134.5°, and the contact angle to chloroform oil is 127.0°. Moreover, the surface hydrophilic pig hair fiber has special wettability of underwater oleophobicity.

Embodiment 3

[0032] Soak 5 g of washed waste pig hair fiber in 300 mL (containing 1 g of sodium sulfide and 0.5 g of fatty alcohol sulfate monoethanolamine salt) aqueous solution, and slowly raise the temperature of the solution to 65 °C under shaking, and then Continue shaking at high temperature for 3 hours; after cooling to room temperature, take out the surface-modified pig hair fiber, wash it with distilled water for 5-10 times, and dry it under vacuum at 65°C for 10 hours to obtain a surface-hydrophilic pig hair fiber.

[0033] The contact angle of the prepared pig hair fiber to diesel oil under water is 130.5°, and the contact angle to chloroform oil is 120.0°. Moreover, the surface hydrophilic pig hair fiber has special wettability of underwater oleophobicity.

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Abstract

The invention provides a surface-hydrophilic pig hair fiber. A preparation method includes the following steps: infiltrating washed pig hair fibers in a water solution, in which a reducing agent and a protective agent are dissolved; heating the solution to 50-85 DEG C under shaking, and continuously shaking the solution at the temperature for 1-5 h; cooling the solution to room temperature and taking the pig hair fibers out; and washing the pig hair fibers with distilled water and drying the pig hair fibers. The pig hair fiber not only maintains original lipophilicity but also has excellent hydrophilicity, wherein the lipophilicity of the pig hair fibers is covered since the hydrophilicity is effectively enhanced, so that the pig hair fiber has a special infiltration performance of underwater lipophobicity. The special infiltration material can be applied to the fields such as micro-droplet transmission, oil-water separation and the like.

Description

technical field [0001] The invention relates to a natural polymer material with special wettability, in particular to a method for preparing a surface hydrophilic pig hair fiber, which belongs to the technical field of functional materials and the field of natural polymer materials. Background technique [0002] There are many biological surfaces with special wetting properties in nature, such as lotus leaves, butterfly wings, rose petals, gecko feet, etc., which provide inspiration for people to design and prepare new special wetting materials. With the deepening of research, super-hydrophobic surfaces have been widely used in fields such as life and production. However, due to the frequent occurrence of crude oil spill accidents and the discharge of oily industrial wastewater, the demand for water restoration and underwater oil pollution prevention has become increasingly prominent. The development and preparation of underwater superoleophobic surface materials has become ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/54D06M13/262D06M15/53D06M11/53D06M101/10
CPCD06M11/53D06M11/54D06M13/262D06M15/53D06M2101/10
Inventor 何玉凤钱文珍钱立忠王荣民
Owner NORTHWEST NORMAL UNIVERSITY