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Sulfur-containing antibacterial fiber material and preparation method thereof

An antibacterial fiber and fiber material technology, which is applied in the field of sulfur-containing antibacterial fiber material and its preparation, can solve the problems of poor slow release, easy volatility, and spinning broken, and achieves simple preparation process, reduced side effects, and mildew resistance. insect repellent effect

Inactive Publication Date: 2016-04-13
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of inorganic antibacterial agent based on metal ions such as silver ions and tin ions has the problems of high price and poor slow-release performance.
However, organic antibacterial agents are often toxic and volatile, their application range is limited, and their antibacterial effect is not stable.
Natural antibacterial agents have problems such as poor heat resistance and short antibacterial duration
Moreover, most of the inorganic antibacterial agents and some organic antibacterial agents are still in the solid state during the high-temperature spinning process, and their solid particles will affect the spinnability of the fiber material, and in severe cases, it will cause broken filaments during spinning.

Method used

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  • Sulfur-containing antibacterial fiber material and preparation method thereof
  • Sulfur-containing antibacterial fiber material and preparation method thereof
  • Sulfur-containing antibacterial fiber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A sulfur-containing antibacterial fiber material, the composition of which is calculated by mass percentage: 80% of fiber matrix material, 5% of sulfur, and 15% of slow-release auxiliary agent, wherein the fiber matrix material is polypropylene, and the sulfur is settled sulfur. The additive is prepared by mixing polypropylene, precipitated sulfur, dicumyl peroxide, and diphenylguanidine at a mass ratio of 85%, 13%, 1%, and 1%, and then plasticizing at 200-240°C. made.

[0032] The principle of its preparation method is as follows figure 1 shown, including the following steps:

[0033] 1) Weighing raw materials: according to the mass ratio of 85% polypropylene, 13% sedimentation sulfur and 1% diphenylguanidine, 1% dicumyl peroxide;

[0034] 2) Preparation of sustained-release aids: Stir and mix the weighed polypropylene, precipitated sulfur, diphenylguanidine and dicumyl peroxide evenly, and then masticate on an internal mixer at a temperature of 200°C. Refining for ...

Embodiment 1

[0036] Gained sulfur-containing antibacterial fiber material performance test of embodiment 1:

[0037] The antibacterial performance test refers to GB / T31713-2015 (safety and hygiene requirements for antibacterial textiles) and QB / T2591-2003 (antibacterial plastics - antibacterial performance test methods and antibacterial effect standards). In this method, the sulfur-containing antibacterial fiber to be tested is first made into a non-woven fabric sample with a thickness of about 0.5 mm, placed in a petri dish, and then the suspensions of Staphylococcus aureus and Escherichia coli are quantitatively inoculated on the sample to be tested, and the sample is covered with a film. The method is to make the bacterial suspension evenly contact the sample, after 24 hours of constant temperature and humidity culture, measure the number of viable bacteria in the sample, and calculate the antibacterial rate of the sample.

[0038]

[0039] Test results: the antibacterial rate of the...

Embodiment 2

[0041] A sulfur-containing antibacterial fiber material, the composition of which is calculated by mass percentage: 80% of fiber matrix material, 5% of sulfur, and 15% of slow-release auxiliary agent, wherein the fiber matrix material is polypropylene, and the sulfur is sublimated sulfur. The additive is prepared by mixing polypropylene, sublimed sulfur, benzoyl peroxide, and diphenylguanidine at a mass ratio of 90%, 9%, 0.5%, and 0.5%, and then plasticizing at 200-240°C. become.

[0042] Its preparation method comprises the following steps:

[0043] 1) Weigh raw materials: 90% polypropylene, 9% sublimated sulfur, 0.5% diphenylguanidine, and 0.5% benzoyl peroxide according to the mass ratio;

[0044] 2) Preparation of sustained-release additives: Stir and mix the weighed polypropylene, sublimed sulfur, diphenylguanidine and benzoyl peroxide evenly, and then masticate on an internal mixer at a temperature of 220°C. 4h, the obtained solid is sustained-release aid: grafted vulc...

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Abstract

The invention discloses a sulfur-containing antibacterial fiber material and a preparation method thereof. The fiber material is prepared from the components such as a fiber matrix material, sulphur and a controlled-release additive. The preparation method of the sulfur-containing antibacterial fiber material comprises the following steps of 1) selecting the fiber matrix material, the sulphur, an initiator and an accelerant; 2) uniformly mixing the fiber matrix material, the sulphur, the initiator and the accelerant, performing plasticating process to obtain a solid substance, namely, the controlled-release additive; 3) weighing the fiber matrix material, the sulphur and the controlled-release additive according to the design amount, uniformly mixing, then performing melt extrusion, so as to obtain sulfur-containing antibacterial fiber. Practice proves that the sulfur-containing antibacterial fiber material is stable in property, has better antibacterial effect, has no toxic and side effect, the production process is simple, and the cost is low.

Description

technical field [0001] The invention belongs to the field of antibacterial fiber material manufacturing, and specifically refers to a sulfur-containing antibacterial fiber material and a preparation method thereof. Background technique [0002] Antibacterial fiber materials currently on the market mainly achieve antibacterial effects by adding inorganic antibacterial agents, organic antibacterial agents or natural antibacterial agents to them. Before the present invention, such as the Chinese invention patent with the application number of 201310284670.6, a kind of antibacterial fiber was disclosed, which directly kneaded the infinite antibacterial material into the matrix material, which has long-term effect on the resistance and killing of bacteria, and silver oxide powder or silver nitrate powder as an antibacterial agent. This inorganic antibacterial agent based on metal ions such as silver ions and tin ions has the problems of high price and poor slow-release performan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/46D01F6/90D01F6/92D01F1/10C08F8/34C08G63/91C08G69/48
CPCC08F8/34C08G63/91C08G69/48D01F1/103D01F6/46D01F6/90D01F6/92C08F10/06C08F110/02
Inventor 孙义明程燕张绍刚马腾飞龚德朋
Owner HUBEI UNIV OF TECH
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