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Antistatic polylactic acid fiber blended yarn and preparation method thereof

A technology of polylactic acid fiber and blended yarn, which is applied in the direction of melt spinning, yarn, textile and paper making, and achieves the effect of broad application prospect and good antistatic performance

Inactive Publication Date: 2018-08-17
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the research on natural fibers to improve the antistatic performance of polylactic acid

Method used

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  • Antistatic polylactic acid fiber blended yarn and preparation method thereof
  • Antistatic polylactic acid fiber blended yarn and preparation method thereof
  • Antistatic polylactic acid fiber blended yarn and preparation method thereof

Examples

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Effect test

preparation example Construction

[0036] The present invention also provides a kind of preparation method of antistatic polylactic acid fiber blended yarn, preferably comprises the following steps:

[0037] (1): Take polylactic acid and polypropylene carbonate by weight, add together in the extruder to melt and blend and extrude, then melt-spin the extruded product through a spinning machine to obtain polylactic acid fibers;

[0038] (2): the polylactic acid fiber obtained in step (1) is opened with the ramie fiber and the conductive fiber weighed according to the formula, and obtains a fiber mixture;

[0039] (3): carding the fiber mixture obtained in step (2), and spinning it into tops or rovings;

[0040] (4): Twisting the top or roving spun into step (3) again to obtain the target product.

[0041] In a preferred embodiment of the present invention, in step (1), the temperatures of each section of the extruder are respectively: feeding section 160°C, compression section 180°C, homogenization section 175°C...

Embodiment 1

[0052] (1) 70 parts of polylactic acid and 20 parts of polypropylene carbonate were melt blended and extruded together, and the temperature of each section was controlled to be 160°C in the feeding section, 180°C in the compression section, and 175°C in the homogenization section, and the screw speed was 55r / min. Then melt-spin the obtained product through a spinning machine at 180°C to obtain polylactic acid fibers, and the winding speed of the melt-spinning is 2500m / min;

[0053] (2) Get the polylactic acid fiber that step (1) makes, 40 parts of ramie fibers and 10 parts of conductive fibers, each constituent fiber is opened, and then forms a fiber mixture;

[0054] (3) Carding the fiber mixture, then spinning the fiber mixture into tops or directly into roving;

[0055] (4) Twisting the obtained top or roving to make its twist at 500T / M, forming such as figure 1 Yarn blends shown.

[0056] The clothing woven from the antistatic polylactic acid fiber blended yarn prepared ...

Embodiment 2

[0058] (1) Melt, blend and extrude 50 parts of polylactic acid and 8 parts of polypropylene carbonate, control the temperature of each section to be 160°C in the feeding section, 180°C in the compression section, 175°C in the homogenization section, and the screw speed is 55r / min. Then melt-spin the obtained product through a spinning machine at 180°C to obtain polylactic acid fibers, and the winding speed of the melt-spinning is 2500m / min;

[0059] (2) Get the polylactic acid fiber that step (1) makes, 10 parts of ramie fibers and 5 parts of conductive fibers, each constituent fiber is opened, and then forms a fiber mixture;

[0060] (3) Carding the fiber mixture, then spinning the fiber mixture into tops or directly into roving;

[0061] (4) Twisting the obtained top or roving to form a blended yarn with a twist of 500T / M.

[0062] The clothing woven from the antistatic polylactic acid fiber blended yarn obtained in Example 2 was tested, and according to GB / T12703-1991 "Tex...

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Abstract

The invention relates to antistatic polylactic acid fiber blended yarn and a preparation method thereof. The antistatic polylactic acid fiber blended yarn is obtained by preparing 50-70 parts of polylactic acid, 8-20 parts of polypropylene carbonate, 10-40 parts of ramie fibers and 5-10 parts of conductive fibers; the preparation method of the yarn comprises the specific steps that polylactic acidand polycaprolactone are melted, blended and extruded together, an obtained product is subjected to melt-spinning at a certain temperature to obtain polylactic acid fibers, and all constituent fibersare subjected to opening to form a fiber mixture; the fiber mixture is carded and spun into wool tops or directly spun into coarse yarn; finally, the obtained wool tops or the obtained coarse yarn istwisted to form the blended yarn. Compared with the prior art, the prepared antistatic polylactic acid fiber blended yarn has a good antistatic property and broad application prospects.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an antistatic polylactic acid fiber blended yarn and a preparation method thereof. Background technique [0002] At present, with the improvement of people's living standards and the continuous renewal of consumption concepts, consumers have higher and higher requirements for the quality, variety, and color of fiber textiles. [0003] Polylactic acid fiber is a product obtained from polylactic acid, which not only has good biocompatibility and bioabsorbability, but also has almost the same strength as polyester, and has a lower Young's modulus, so the fabric is soft and It is an excellent fabric raw material. However, due to the different functions and requirements of textile fabrics in various industries and fields (such as waterproof, moisture permeability, fire prevention, high temperature resistance, acid and alkali resistance, insulation, etc.), pure polylactic ac...

Claims

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Application Information

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IPC IPC(8): D02G3/04D01D5/08D02G3/44
CPCD02G3/04D01D5/08D02G3/441D10B2101/12D10B2201/08D10B2331/041D10B2331/14
Inventor 李建波程倩
Owner TONGJI UNIV
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