Fibroin polylactic acid fiber containing silk fibroin modified polylactic acid

A technology of polylactic acid fiber and silk fibroin, applied in the direction of cellulose/protein conjugated artificial filament, conjugated synthetic polymer artificial filament, etc., can solve the problems of not being able to be used as textile fibers and functional limitations, and achieve Excellent mechanical strength, excellent heat resistance, and excellent performance

Active Publication Date: 2016-09-28
广州迪柯尼服饰股份有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN 104530670A (disclosure date 2015.4.22) discloses a silk protein / polylactic acid blend material and its melt blending preparation method, which involves high-speed mixing of silk protein, polylactic acid, silk protein and polylactic acid copolymer, The blend of polylactic acid and silk fibroin is obtained by heating, melting and mixing, and then extruded and granulated to obtain a silk protein / polylactic acid blend material. The shape of the blend of silk protein and polylactic acid prepared by this method is granular. Functionality is very limited and cannot be used as a textile fiber

Method used

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  • Fibroin polylactic acid fiber containing silk fibroin modified polylactic acid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) The continuous silk fiber of 20 / 22D is boiled and degummed, washed and dried at room temperature to obtain pretreated silk fiber, and the pretreated silk fiber is dissolved and dialyzed to form a silk fibroin aqueous solution with a mass fraction of 2%, Wherein the relative molecular mass of silk fibroin is 10000, then add 3 parts of DL-lactide and 2 parts of polyethylene glycol to the silk fibroin aqueous solution with volume fraction of 80, stir and react to obtain silk fibroin modification polylactic acid solution.

[0030] (2) The pretreated silk fibers prepared in step (1) were arranged in parallel with five 2D polylactic acid fibers, and twisted with 400 twists / 10cm to form a silk polylactic acid composite yarn.

[0031] (3) After the silk polylactic acid composite yarn prepared in step (2) was irradiated and pretreated for 3 minutes at an intensity of 10 kGy, it was immediately immersed in the silk fibroin-modified polylactic acid solution prepared in step (1...

Embodiment 2

[0033] (1) The continuous silk fiber of 20 / 22D is degummed by boiling, washed and dried at room temperature to obtain pretreated silk fiber, and the pretreated silk fiber is dissolved and dialyzed to form a silk fibroin aqueous solution with a mass fraction of 10%, Wherein the relative molecular mass of silk fibroin is 25000, then add 5 parts of DL-lactide and 6 parts of polyethylene glycol to the silk fibroin aqueous solution with volume parts of 100, and stir to obtain the modified silk fibroin polylactic acid solution.

[0034] (2) The pretreated silk fibers prepared in step (1) were arranged in parallel with eight 5D polylactic acid fibers, and twisted with 1200 twists / 10cm to form a silk polylactic acid composite yarn.

[0035] (3) After the silk polylactic acid composite yarn prepared in step (2) was irradiated and pretreated for 5 minutes at an intensity of 20 kGy, it was immediately immersed in the silk fibroin-modified polylactic acid solution prepared in step (1) at ...

Embodiment 3

[0037] (1) The continuous silk fiber of 20 / 22D is degummed by boiling, washed and dried at room temperature to obtain pretreated silk fiber, and the pretreated silk fiber is dissolved and dialyzed to form a silk fibroin aqueous solution with a mass fraction of 5%, Wherein the relative molecular mass of silk fibroin is 20000, then add 4 parts of DL-lactide and 3 parts of polyethylene glycol to the silk fibroin aqueous solution with volume fraction of 90, stir and react to obtain silk fibroin modification polylactic acid solution.

[0038](2) The pretreated silk fibers prepared in step (1) were arranged in parallel with six 4D polylactic acid fibers, and twisted with 600 twists / 10cm to form a silk polylactic acid composite yarn.

[0039] (3) After the silk polylactic acid composite yarn prepared in step (2) was irradiated and pretreated for 4 minutes at an intensity of 15 kGy, it was immediately immersed in the silk fibroin-modified polylactic acid solution prepared in step (1) ...

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Abstract

The invention provides a fibroin polylactic acid fiber containing silk fibroin modified polylactic acid. DL-lactide and polyethylene glycol are added into a silk fibroin water solution, silk fibroin modified polylactic acid solution is obtained after stirring and reaction, silk polylactic acid composite yarns after irradiation pretreatment are immersed into the silk fibroin modified polylactic acid solution and subjected to ultrasonic washing and drying to obtain the fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid. The cross section of the fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid is of a skin-core structure, a core layer includes the silk polylactic acid composite yarns, and a skin layer includes the silk fibroin modified polylactic acid and is connected with the core layer through chemical bonds and hydrogen bonds. The fibroin polylactic acid fiber containing the silk fibroin modified polylactic acid is fine in mechanical strength, green, skin-friendly and fine in serviceability, and can be used in the field of textiles and medical treatment.

Description

Technical field: [0001] The invention belongs to the technical field of textile materials, in particular to a silk polylactic acid fiber containing silk fibroin modified polylactic acid. Background technique: [0002] With the development of science and technology and society, chemistry, polymer and nanotechnology have developed rapidly. However, chemical fibers produced by traditional chemical methods have caused a great burden on the environment and resources. Therefore, for the sustainable development of society, protection The environment and the use of renewable resources are of increasing concern. In the field of textiles, people not only require good wearability, bright and novel colors, but also require green, environmentally friendly, skin-friendly and comfortable fibers. [0003] Polylactic acid fiber, also known as corn fiber and PLA fiber, is made of lactic acid fermented and transformed from corn, wheat and other starches as raw material. Lactic acid is direct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/14C08G63/08
CPCC08G63/08D01F8/02D01F8/14
Inventor 王文庆
Owner 广州迪柯尼服饰股份有限公司
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