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A kind of preparation method of natural sericin graft modified regenerated PET fiber

A technology of grafting modification and sericin protein, which is applied in the direction of biochemical fiber treatment, improved hand feeling fiber, fiber treatment, etc., can solve the problems of low moisture regain and easy classics, etc., achieve stable structure and performance, and solve easy to break Static electricity, the effect of expanding the application range

Active Publication Date: 2022-05-20
ANHUI AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing natural sericin grafted modified regenerated PET fibers to solve the technical problems in the prior art. It can solve the problems of low moisture regain and easy classics of PET fibers, and improve the consumption of PET fibers. Comfort and Biocompatibility

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  • A kind of preparation method of natural sericin graft modified regenerated PET fiber
  • A kind of preparation method of natural sericin graft modified regenerated PET fiber
  • A kind of preparation method of natural sericin graft modified regenerated PET fiber

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preparation example Construction

[0023] A kind of preparation method of natural sericin graft modification regenerated PET fiber, comprises the following steps:

[0024] (1) adding the regenerated PET fiber to the compound solution of industrial lipase and penetrant, soaking and drying to obtain the pretreated regenerated PET fiber;

[0025] (2) treating the pretreated regenerated PET fiber in step (1) with oxygen plasma to obtain carboxyl-containing modified regenerated PET fiber;

[0026] (3) Immerse the carboxyl-containing modified regenerated PET fibers in step (2) in the sericin solution, and use a catalyst to covalently cross-link and graft sericin on the surface of the regenerated PET to obtain natural sericin grafting. Branch modified recycled PET fiber.

[0027] The concentration of the industrial lipase described in the step (1) is 15-35g / L, and the concentration of the penetrant is 5-10g / L.

[0028] The industrial lipase described in step (1) includes phosphatase and carboxylesterase.

[0029] T...

Embodiment 1

[0037] A kind of preparation method of natural sericin graft modification regenerated PET fiber, comprises the following steps:

[0038] (1) Add the regenerated PET fiber into the industrial lipase and penetrant compound solution solution, wherein the concentration of industrial lipase is 15g / L, the concentration of penetrant is 5g / L, the immersion temperature is 25°C, and the immersion time is 5min, the fiber bath ratio is 1:10, the drying temperature after impregnation is 50°C, and the drying time is 10min. Industrial lipases include phosphatases and carboxylesterases. The penetrant is fatty alcohol polyoxyethylene ether.

[0039] (2) Treat the pretreated regenerated PET fiber in step (1) with oxygen plasma, the oxygen plasma treatment power is 20W, and the reaction time is 1min, to obtain the modified regenerated PET fiber containing carboxyl groups.

[0040] (3) Immerse the modified regenerated PET fibers containing carboxyl groups in step (2) in a sericin solution conta...

Embodiment 2

[0043] (1) Add regenerated PET fiber into the industrial lipase and penetrant compound solution solution, wherein the concentration of industrial lipase is 20 / L, the concentration of penetrant is 8g / L, the dipping temperature is 40°C, and the dipping time is 10min, the fiber bath ratio is 1:40, the drying temperature after impregnation is 60°C, and the drying time is 20min. Industrial lipases include phosphatases and carboxylesterases. The penetrant is fatty alcohol polyoxyethylene ether.

[0044] (2) The pretreated regenerated PET fiber in the step (1) is subjected to oxygen plasma treatment, the power of the oxygen plasma treatment is 50W, and the reaction time is 10min to obtain the modified regenerated PET fiber containing carboxyl groups.

[0045] (3) Immerse the modified regenerated PET fibers containing carboxyl groups in step (2) in the sericin solution containing the catalyst, the concentration of the sericin solution is 2%, the reaction time is 10min, and the fiber ...

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Abstract

The invention discloses a preparation method of natural sericin protein graft modified regenerated PET fiber, which comprises the following steps: (1) adding the regenerated PET fiber into the compound solution of industrial lipase and penetrant, dipping and drying to obtain Pretreatment of regenerated PET fibers; (2) treating the pretreated regenerated PET fibers in step (1) with oxygen plasma to obtain carboxyl-containing modified regenerated PET fibers; (3) modifying the carboxyl-containing regenerated PET fibers in step (2) The regenerated PET fiber silk is immersed in the sericin solution, and the catalyst is used to covalently cross-link and graft the sericin on the surface of the regenerated PET, thereby obtaining the natural sericin grafted modified regenerated PET fiber. The beneficial effects of the present invention are: the structure and performance of the natural sericin grafted modified regenerated PET fiber prepared by the method of the present invention are stable, and the function of natural sericin expands the application range of PET, and solves the problem of low moisture regain and easy Eliminate the problem of static electricity and improve the comfort and biocompatibility of PET fibers.

Description

technical field [0001] The invention relates to a process method for modifying regenerated PET fibers, in particular to a method for preparing natural sericin graft modified regenerated PET fibers. Background technique [0002] PET fiber has become the most widely used and most consumed synthetic fiber in daily life and textile fields. The main component of PET is polyethylene terephthalate, which lacks polar groups and chemically active groups. This makes PET low in moisture regain, non-hydrophilic, and prone to static electricity. At the same time, the function of PET is relatively single, and it lacks skin-friendly and biocompatibility when used as textiles. These shortcomings limit the application of PET fibers in many fields, and also hinder PET fiber. Surface functional graft modification. Therefore, functional modification on the surface of PET fibers is a method that experts and scholars at home and abroad have endowed PET fibers with high added value in recent yea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/15D06M10/02D06M10/10D06M16/00D06M15/53D06M101/32
CPCD06M15/15D06M10/02D06M10/10D06M16/003D06M15/53D06M2101/32D06M2200/50Y02W30/62
Inventor 杜兆芳李继丰闫文静方婷顾殿宽胡超凡
Owner ANHUI AGRICULTURAL UNIVERSITY