Antibacterial degradable composite fiber preparation method

A composite fiber and cellulose technology, which is applied in the field of functional cellulose preparation, can solve problems such as general mechanical properties, limited technical fields and industrial applications, and narrow application range of lyocell fibers, so as to improve mechanical properties and highlight practical effects And application prospects, the effect of green environmental protection in the production process

Pending Publication Date: 2020-02-28
SHIJIAZHUANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the obvious fibrillation tendency and general mechanical properties of lyocell fibers, the practical application range of lyocell fibers is relatively narrow, which has become a technical bottleneck restricting related technical fields and industrial applications.

Method used

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  • Antibacterial degradable composite fiber preparation method
  • Antibacterial degradable composite fiber preparation method
  • Antibacterial degradable composite fiber preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, the preparation of ionic liquid (one)

[0038] Add 1 mol of hexamethylenediamine and 1 mol of guanidine hydrochloride into a dry 250mL three-neck flask, blow in nitrogen, heat and stir under the protection of nitrogen, after heating to 100°C, keep warm at 10°C per liter for 15min, until the temperature rises to 180°C, and continue the reaction for 6h , the polymerization reaction is completed; the temperature of the polymer is naturally lowered to 120° C., 1 mol of hexafluorophosphoric acid is added to the polymer, and the reaction is completed for 3 hours to obtain a bacteriostatic polymer ionic liquid product.

Embodiment 2

[0039] Embodiment 2, the preparation of ionic liquid (two)

[0040] Add 1 mol of hexamethylenediamine and 1 mol of guanidine hydrochloride into a dry 250mL three-neck flask, blow in nitrogen, heat and stir under the protection of nitrogen, after heating to 100°C, keep warm at 10°C per liter for 15min, until the temperature rises to 180°C, and continue the reaction for 6h , the polymerization reaction is completed; the temperature of the polymer is naturally lowered to 120° C., 1 mol of fluorosulfonic acid is added to the polymer, and the reaction is completed for 5 hours, and a bacteriostatic polymer ionic liquid product is obtained.

Embodiment 3

[0041] Embodiment 3, the preparation of ionic liquid (three)

[0042] Add 1 mol of hexamethylenediamine and 1 mol of guanidine hydrochloride into a dry 250mL three-neck flask, blow in nitrogen, heat and stir under the protection of nitrogen, after heating to 100°C, keep warm at 10°C per liter for 15min, until the temperature rises to 180°C, and continue the reaction for 6h , the polymerization reaction is completed; the solvent is removed by hanging and evaporated, and then the polymer product is obtained by suction filtration, and the temperature is raised to 120 ° C to add 1 mol of tetrafluoroboric acid to the polymer, and react for 4 hours. After the reaction is completed, a bacteriostatic polymer ionic liquid product is obtained.

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Abstract

The invention discloses an antibacterial degradable composite fiber preparation method. The method includes steps: A, cellulose spinning; B, compound fluid preparation / compound sizing enhancement solution preparation; C, antibacterial cellulose-polyvinyl alcohol composite fiber preparation. By improvement and development of a traditional lyocell fiber process, an antibacterial composite fiber is obtained, a technical process is environmentally friendly, and the obtained composite fiber is stable in antibacterial performance and applicable to cloth and rope products. In addition, the compositefiber applied to fields of agriculture, clothing and the like is not only excellent in antibacterial performance but also high in environmental friendliness due to easiness in degradation under natural conditions, and the environmental problem caused by white pollution can be hopefully improved from the source by popularization of materials like the composite fiber in the future.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a preparation method of functional cellulose. Background technique [0002] In recent years, a large number of films synthesized from petroleum have been used. On the one hand, it has brought serious white pollution to the environment. On the other hand, with the depletion of petroleum resources, the raw materials for plastic film production are also facing the dilemma of shortage. To address these issues, researchers have turned to degradable and renewable resources. Cellulose is a renewable resource that grows continuously in nature. It is green and environmentally friendly, and has huge reserves in nature. With the continuous deepening of research, people found that the green solvent N-methylmorphine-N-oxide (NMMO) solution of cellulose can dissolve cellulose well under certain conditions, perform spinning, and process it into a film. The NMMO dissolved cellulose i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/37D06M15/333D06M13/148D06M101/06
CPCD06M13/148D06M15/333D06M15/37D06M16/00D06M2101/06
Inventor 王娟余同林未君洪张伟亮贾鹏飞葛凤燕张星辰刘占旗邢云立章柏宁
Owner SHIJIAZHUANG UNIVERSITY
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