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Konjac glucomannan contained filament fiber material and preparation method thereof

A konjac glucomannan and filament fiber technology, which is applied in the direction of spinning solution preparation, conjugated artificial filament, fiber chemical characteristics, etc., can solve the problem of poor starch forming performance and mechanical properties, high cost of raw materials, and it is not suitable to be used alone Use and other issues to achieve the effect of realizing economic value and practical value, good mechanical properties and low price

Inactive Publication Date: 2012-06-20
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its low price and complete biodegradability in various environments, starch has been widely studied as a polymer degradable material. However, the formability and mechanical properties of starch are not good, and pure starch fiber is very difficult. brittle, should not be used alone
Konjac fine powder is a material with good formability and easy to be degraded by microorganisms. It has good mechanical properties, but the disadvantage is that the cost of raw materials is high
For example, patent ZL200510018698.0 only discloses the preparation of short fibers (20-40mm) of single-component konjac powder (the main component is konjac glucomannan), and the use of this type of fiber is limited due to its short length.
In addition, if it is used for routine purposes such as disinfectant paper towels, fragrance slow-release deodorization, drug slow-release, wound bandages, etc., the single-component konjac glucomannan fiber has the problem of high raw material costs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: the preparation method of the fiber filament containing konjac mannan of the present invention is:

[0027] (1) Prepare dilute lactic acid solution: take 5% lactic acid by mass of fiber filaments, dilute lactic acid with water, and the mass ratio of water to lactic acid is 30:1;

[0028] (2) Prepare the mixed powder: get the starch content of 50% of the fiber filament mass percentage and the konjac fine powder of 20% of the fiber filament mass percentage (konjac fine powder is the konjac fine powder containing 90wt% konjac glucomannan), Mix both well;

[0029] (3) Preparation of spinning solution: remix the dilute lactic acid solution prepared in step (1) and the mixed powder prepared in step (2) and stir evenly, heat it with microwave until it boils for 5 minutes, then stir evenly and cool naturally to At room temperature, after filtering through a 200-mesh sieve, place it under a negative pressure of 400 mm Hg for 0.8 hours for degassing;

[0030] (4) ...

Embodiment 2

[0032] Embodiment 2: The preparation method of this fiber filament containing konjac mannan is:

[0033] (1) Prepare dilute lactic acid solution: take 1% lactic acid by mass of fiber filaments, dilute lactic acid with water, and the mass ratio of water to lactic acid is 10:1;

[0034] (2) Preparation of mixed powder: get the starch content of 0.1% of the fiber filament mass percentage and the konjac fine powder of 80% of the fiber filament mass percentage (konjac fine powder is konjac fine powder containing 70wt% konjac glucomannan), Mix both well;

[0035] (3) Preparation of spinning solution: remix the dilute lactic acid solution prepared in step (1) and the mixed powder prepared in step (2) and stir evenly, heat it with microwave until boiling for 20 minutes, then stir evenly and cool naturally to At room temperature, after filtering through a 200-mesh sieve, place it under a negative pressure of 420 mm Hg for 0.5 hours for degassing;

[0036] (4) Wet spinning, the spinni...

Embodiment 3

[0038] Embodiment 3: The preparation method of this fiber filament containing konjac mannan is:

[0039] (1) Prepare dilute lactic acid solution: take 10% lactic acid by mass of fiber filaments, dilute lactic acid with water, and the mass ratio of water to lactic acid is 50:1;

[0040](2) Prepare mixed powder: get the konjac fine powder (konjac fine powder is the konjac fine powder containing 100wt% konjac glucomannan) of the starch content of 75% of the fiber filament mass percentage and 5% of the fiber filament mass percentage, Mix both well;

[0041] (3) Preparation of spinning solution: remix the dilute lactic acid solution prepared in step (1) and the mixed powder prepared in step (2) and stir evenly, heat it with microwave until boiling for 10 minutes, then stir evenly and cool naturally to At room temperature, after filtering through a 200-mesh sieve, place it under a negative pressure of 500 mm Hg for 1 hour for defoaming;

[0042] (4) Wet spinning, the spinning solu...

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Abstract

The invention discloses a konjac glucomannan contained filament fiber material and a preparation method thereof, which belong to the technical field of environment-friendly polymer fiber materials. The konjac glucomannan contained filament fiber material comprises, by mass percent, 0.1-75% of starch, 5-80% of konjac fine powder, 1-25% of water, 1-10% of lactic acid, and 0.1-5% of coagulator made up of ethanol, glycerol and ammonia water. The main materials, such as the natural starch, the konjac fine powder and the like, are from rich food-grade natural polymers, and the konjac glucomannan contained filament fiber material is harmless to human bodies and capable of degrading under natural conditions. Process parameters of microwave pretreatment-wet spinning can be adjusted to achieve regulation of degradation rate of the fiber material, and environment friendliness is achieved. The fiber can be widely applied to uses, such as food packaging, gas filtration, biochemical dialysis, disposable garments, breathable fabrics, beauty masks, slow release of perfumes or deodorization using perfumes, antiseptic wipes, baby diapers, feminine napkins, wound bandages, surgical dressings, slow release of drugs, tissue engineering scaffolds and the like.

Description

technical field [0001] The invention relates to a filament fiber material containing konjac glucomannan and a preparation method thereof, belonging to the technical field of green and environment-friendly polymer fiber materials. Background technique [0002] Since the beginning of the 21st century, petrochemical resources such as petroleum and coal have been decreasing day by day, and the waste of some polymer materials and the volatilization of organic solvents coexist with it, which increasingly threatens the environment on which human beings depend. With the development of industry, chemically synthesized plastic products are widely used in the fields of food packaging and fresh-keeping because of their low price and stable properties. However, the disadvantage is that they are difficult to degrade in the environment after use, causing "white pollution". In order to alleviate the adverse effects of "white pollution" on human survival, health and development, the rese...

Claims

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Application Information

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IPC IPC(8): D01F8/18D01F1/10D01D1/02D01D5/06
Inventor 陈庆华黄林黄明华李维艳
Owner KUNMING UNIV OF SCI & TECH
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