WO2016058109A1

WO2016058109A1 - Preparation method for collagen modified superfine acrylic fibres

Info

Publication number: WO2016058109A1
Application number: PCT/CN2014/000901
Authority: WO
Inventors: 袁振其
Original assignee: 太仓苏纶纺织化纤有限公司
Priority date: 2014-10-13
Filing date: 2014-10-13
Publication date: 2016-04-21

Abstract

A preparation method for collagen modified superfine acrylic fibres, the method comprising: dissolving polyacrylonitrile in a solvent, adding polyvinylpyrrolidone, and stirring evenly to prepare a fibre polymer solution; in a 40^oC environment, adding a collagen solution to the fibre polymer solution, and magnetically stirring until even, the resulting solution acting as a spinning solution after standing; pouring the spinning solution into a jetting device, spinning under the effect of an additional electric field, depositing into a collecting device by controlling the spinning time and moving a receiving screen, baking, and obtaining the collagen modified superfine acrylic fibres. Via the preparation method, the structural controllability of a fabric can be improved, and the modified acrylic fibres have a soft, smooth feel and the effect of imitating silk.

Description

Preparation method of collagen modified superfine acrylic fiber

Technical field

The invention relates to a preparation method of ultrafine acrylic fiber, in particular to a preparation method of collagen modified ultrafine acrylic fiber.

Background technique

At present, with the increasing living standards of people and the constant renewal of consumer concepts, consumers are increasingly demanding the quality, variety and color of acrylic textiles. The commonly used acrylic fiber is a kind of synthetic fiber. Because of its soft, fluffy and warmth, it is always favored by the market. However, due to the relatively regular molecular structure of acrylic fiber, acrylic fiber is a synthetic fiber, which is a hydrophobic fiber. It lacks hydrophilic groups in macromolecules, has a tight molecular chain structure, and has high crystallinity and orientation. Its hydrophilicity is higher. Poor, traditional chemical modification consumes a lot of water and chemicals, which is not only complicated to operate, but also pollutes the environment.

The electrospinning method is a device for producing polymer filaments by using electrostatic force. The prepared inorganic fiber structure can be controlled by solution properties, spinning parameters and post-treatment to achieve morphology and structure, and exhibits excellent properties in the field of textile materials. characteristic.

In summary, there is an urgent need for a method for preparing a collagen-modified ultrafine acrylic fiber, which can improve the structural controllability of the fabric, and the modified acrylic fiber has a soft touch, a smooth crepe, and a silk-like effect.

Summary of the invention

Collagen is the most abundant protein in mammals. It has good hygroscopicity and skin-friendly properties. Combined with the chemical structure of acrylic fiber, it can effectively improve the hydrophilicity and fill the grooves and cracks on the surface of the fiber. Sexual ultra-fine acrylic fiber has a soft, smooth feel and has an imitation The effect of silk.

In order to achieve the above object, the technical solution provided by the present invention is:

A preparation method of collagen modified ultrafine acrylic fiber, comprising:

1) dissolving polyacrylonitrile in a solvent, adding polyvinylpyrrolidone, and uniformly preparing a fiber polymer solution;

2) adding a collagen solution to the fiber polymer solution under the environment of 40 ° C, magnetically stirring until uniform, and standing as a spinning solution after standing;

3) pouring the spinning solution into the ejector, spinning under the action of an additional electric field, depositing in the collecting device by controlling the spinning time and moving the receiving screen, and roasting to obtain the protein collagen modified ultrafine acrylic fiber.

Further, the solvent is one of dimethylformamide or dimethylacetamide.

Further, the mass fraction of collagen in the collagen solution is 3% to 7%.

Further, in the step 1), the mass ratio of the polyphenylene nitrile to the solvent is 1:9 to 1:5, and the mass fraction of the polyvinylpyrrolidone is 10%; in the step 2), the fiber polymer solution and the collagen The mass ratio of the solution is 5:1-3:1, and the standing time is 1-2 h; in the step 3), the additional electric field strength is 0.2 kv/cm-2 kv/cm, and the screen is received from the spinneret 10 -45 cm, calcination temperature is 400-650 °C.

Further, in the step 1), the mass ratio of the polyphenylene nitrile to the solvent is 1:6, the mass percentage of the polyvinylpyrrolidone is 10%; and in the step 2), the mass ratio of the fiber polymer solution to the collagen solution 4:1, the rest time is 1 h; in step 3), the additional electric field strength is 1 kv/cm, the screen is 25 cm from the spinneret, and the calcination temperature is 550 °C.

Further, the ultrafine acrylic fiber has a diameter of 100 to 300 nm.

With the above technical solutions, the beneficial effects of the present invention are as follows:

In the present invention, the collagen-modified ultrafine acrylic fiber is used, and since the collagen has good hygroscopicity, skin-friendly property and the like, combined with the chemical structural characteristics of the acrylic fiber, the hydrophilicity can be effectively improved, and the grooves and cracks on the surface of the fiber are filled. The modified ultra-fine acrylic fiber has a soft touch and a smooth feel, and has the effect of silk-like silk.

detailed description

Example 1

The polyacrylonitrile was dissolved in a solvent at a mass ratio of 1:9, 10% polyvinylpyrrolidone was added, and the fiber polymer solution was prepared by stirring uniformly; the solvent was dimethylacetamide.

In a 40 ° C environment, a 3% collagen solution was added to the fiber polymer solution, and the mass ratio of the fiber polymer solution to the collagen solution was 5:1, magnetically stirred until uniform, and allowed to stand for 1 h as a spin solution.

The spinning solution is added to an electrospinning machine for electrospinning, the additional electric field strength is 0.2 kv/cm, the screen is 10 cm from the spinneret, and the calcination temperature is 400 ° C to obtain collagen-modified microfiber. .

Example 2

The polyacrylonitrile was dissolved in a solvent at a mass ratio of 1:5, 10% polyvinylpyrrolidone was added, and the fiber polymer solution was prepared by stirring uniformly; the solvent was dimethylformamide.

In a 40 ° C environment, a 7% collagen solution was added to the fiber polymer solution, and the mass ratio of the fiber polymer solution to the collagen solution was 3:1, magnetically stirred until uniform, and allowed to stand as a spin solution after standing for 2 hours.

The spinning solution was added to an electrospinning machine for electrospinning, an additional electric field strength of 2 kV/cm, a screen distance of 45 cm from the spinneret, and a calcination temperature of 650 ° C to prepare a collagen-modified ultrafine fiber.

Example 3

The polyacrylonitrile was dissolved in a solvent at a mass ratio of 1:6, 10% polyvinylpyrrolidone was added, and the fiber polymer solution was prepared by stirring uniformly; the solvent was dimethylformamide.

In a 40 ° C environment, a 5% collagen solution was added to the fiber polymer solution, and the mass ratio of the fiber polymer solution to the collagen solution was 4:1, magnetically stirred until uniform, and allowed to stand for 1 h as a spin solution.

The spinning solution was added to an electrospinning machine for electrospinning, the additional electric field strength was 1 kv/cm, the screen was opened at a distance of 25 cm from the spinneret, and the calcination temperature was 550 ° C to obtain collagen modification. superfine fiber.

The above-mentioned embodiments are merely illustrative of the embodiments of the present invention, and the description thereof is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

A preparation method of collagen modified ultrafine acrylic fiber, characterized in that it comprises:

1) dissolving polyacrylonitrile in a solvent, adding polyvinylpyrrolidone, and uniformly preparing a fiber polymer solution;

2) adding a collagen solution to the fiber polymer solution under the environment of 40 ° C, magnetically stirring until uniform, and standing as a spinning solution after standing;

3) pouring the spinning solution into the ejector, spinning under the action of an additional electric field, depositing in the collecting device by controlling the spinning time and moving the receiving screen, and roasting to obtain the protein collagen modified ultrafine acrylic fiber.
The method for producing a collagen-modified ultrafine acrylic fiber according to claim 1, wherein the solvent is one of dimethylformamide or dimethylacetamide.
The method for preparing a collagen-modified ultrafine acrylic fiber according to claim 1, wherein the collagen solution has a mass fraction of collagen of 3% to 7%.
The method for preparing a collagen-modified ultrafine acrylic fiber according to claim 1, wherein in the step 1), the mass ratio of the polyphenylene nitrile to the solvent is 1:9 to 1:5, and the polyvinylpyrrolidone The mass fraction is 10%; in step 2), the mass ratio of the fiber polymer solution to the collagen solution is 5:1-3:1, and the rest time is 1-2 h; in step 3), the additional The electric field strength is 0.2kv/cm-2kv/cm, the receiving screen is 10-45cm from the spinning port, and the baking temperature is 400-650°C.
The method for preparing a collagen-modified ultrafine acrylic fiber according to claim 4, wherein in the step 1), the mass ratio of the polyphenylene nitrile to the solvent is 1:6, and the mass percentage of the polyvinylpyrrolidone is 10%; in step 2), the mass ratio of the fiber polymer solution to the collagen solution is 4:1, and the rest time is 1 h; in step 3), the additional electric field strength is 1 kv/cm, accepting the screen The spinneret was 25 cm away and the calcination temperature was 550 °C.
The method for producing a collagen-modified ultrafine acrylic fiber according to any one of claims 1 to 5, wherein the ultrafine acrylic fiber has a diameter of from 100 to 300 nm.