A kind of composite antibacterial finishing non-woven fabric and preparation method thereof

A non-woven fabric and composite antibacterial technology, applied in botany equipment and methods, textiles and papermaking, fiber treatment, etc., can solve the problems of poor durability of multifunctional fabrics, adhesive pollution, single performance, etc., and achieve strong antibacterial power , high-efficiency filtration, and simple operation

Active Publication Date: 2022-05-17
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the performance of ordinary melt blown cloth on the market is relatively single, and its application is limited. The design and development of multifunctional melt blown cloth has become a research hotspot. With the enhancement of ecological and environmental protection awareness, environmentally friendly ecological modification methods have attracted attention. Fabric finishing modifiers have also become a research hotspot, but adhesive contamination between fabrics and surface modifying substances has become a major problem in the current market, and the durability of modified multifunctional fabrics is poor

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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  • A kind of composite antibacterial finishing non-woven fabric and preparation method thereof
  • A kind of composite antibacterial finishing non-woven fabric and preparation method thereof
  • A kind of composite antibacterial finishing non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A SiO-based 2 @PDA-Ag composite antibacterial finishing non-woven fabric, the preparation method of the non-woven fabric comprises the following steps:

[0034] (1) Preparation of porous nano-silica by sol-gel method;

[0035] Mix 15mL of ammonia water, 50mL of deionized water and 150mL of absolute ethanol evenly, add 45mL of tetraethyl silicate TEOS while stirring, stir and react at room temperature for 24 h, and obtain nano-SiO with light blue opalescence. 2 ethanol dispersion;

[0036] After filtering, the precipitate was centrifuged and washed three times with ethanol and deionized water, vacuum-dried at 30° C., and calcined at 550° C. for 3 hours in a muffle furnace to obtain the porous nano-silica.

[0037] (2) Preparation of modified materials with polydopamine film attached to the surface, that is, SiO 2 @PDA;

[0038] At 45°C, put the porous silica prepared in step (1) directly into a dopamine solution with a concentration of 2g / L and a pH of 8.5 and soak f...

Embodiment 2

[0044] A SiO-based 2 @PDA-Ag composite antibacterial finishing non-woven fabric, the preparation method of the non-woven fabric comprises the following steps:

[0045] (1) Preparation of porous nano-silica by sol-gel method;

[0046] Mix 15mL of ammonia water, 50mL of deionized water and 200mL of absolute ethanol evenly, add 45mL of tetraethyl silicate TEOS while stirring, stir and react at room temperature for 24 h, and obtain nano-SiO with light blue opalescence. 2 ethanol dispersion;

[0047] After filtering, the precipitate was centrifuged and washed three times with ethanol and deionized water, vacuum-dried at 45° C., and calcined at 400° C. for 3 hours in a muffle furnace to obtain the porous nano-silica.

[0048] (2) Preparation of modified materials with polydopamine film attached to the surface, that is, SiO 2 @PDA;

[0049] At 55°C, put the porous silica prepared in step (1) directly into a dopamine solution with a concentration of 2g / L and a pH of 8.5 and soak f...

Embodiment 3

[0055] A SiO-based 2 @PDA-Ag composite antibacterial finishing non-woven fabric, the preparation method of the non-woven fabric comprises the following steps:

[0056] (1) Preparation of porous nano-silica by sol-gel method;

[0057] Mix 15mL of ammonia water, 50mL of deionized water and 200mL of absolute ethanol evenly, add 45mL of tetraethyl silicate TEOS while stirring, stir and react at room temperature for 24 h, and obtain nano-SiO with light blue opalescence. 2 ethanol dispersion;

[0058] After filtering, the precipitate was centrifuged and washed three times with ethanol and deionized water, vacuum-dried at 40° C., and calcined at 500° C. for 3 hours in a muffle furnace to obtain the porous nano-silica.

[0059] (2) Preparation of modified materials with polydopamine film attached to the surface, that is, SiO 2 @PDA;

[0060] At 60°C, put the porous silica prepared in step (1) directly into a dopamine solution with a concentration of 2g / L and a pH of 8.5 and soak f...

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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Abstract

The invention discloses a SiO-based 2 @PDA-Ag composite antibacterial finishing nonwoven fabric, the preparation method of the nonwoven fabric comprises the following steps: (1) preparation of porous nano-silica by sol-gel method; (2) preparation of surface-attached polydopamine membrane modification material, i.e. SiO 2 @PDA; (3) Preparation of silver-loaded modified silica with core-shell structure, namely SiO, by in situ reduction method 2 @PDA‑Ag; (4) Preparation of nonwovens with composite antibacterial finishing by impregnation method. The reaction raw materials of the present invention are efficiently utilized and the reaction condition is room temperature, which has the characteristics of environmental protection, energy saving, and no pollution. Meanwhile, the nonwoven fabric of the present invention has the advantages of strong sterilization ability, no toxic side effects, and high air permeability.

Description

technical field [0001] The invention relates to the technical field of protective materials, in particular to a SiO-based 2 @PDA-Ag composite antibacterial finished nonwoven fabric and its preparation method. Background technique [0002] There are all kinds of microorganisms in nature, such as bacteria, fungi, etc., they are in air, water, soil and other media, and there are also microorganisms in textiles such as clothing that are in direct contact with people. It will reproduce in large numbers, thereby affecting the properties of textiles, and indirectly affecting human health and spreading various diseases. There are two main ways to produce antibacterial textiles: the first is to add antibacterial agents to the spinning solution and spin to make antibacterial fibers; the second is to post-treat the textiles with antibacterial agents to obtain antibacterial effects; considering the complex process Degree and cost, the second method is mostly adopted in the general ind...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/83D06M23/02A01N59/16A01N25/10A01P1/00
CPCD06M11/83D06M23/02D06M16/00A01N59/16A01N25/10
Inventor 吴柔芬俞科静黄静怡李瑞丰刘甜甜吴然
Owner JIANGNAN UNIV
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