Micro-nano fiber composite non-woven medical and sanitary material and preparation method thereof

A micro-, nano-fiber, nano-fiber technology, applied in fiber processing, rayon manufacturing, fiber chemical characteristics, etc., can solve the problems that the production capacity is difficult to meet the needs of industrial applications, the strength of the nano-fiber membrane is low, and meet the requirements of industrial scaled production. , good comfort, good bonding effect

Inactive Publication Date: 2021-05-18
苏州爱可思医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the equipment and process of electrospinning technology have been continuously improved, and the output has also increased significantly, compared with traditional melt blown and spunbond preparation technologies, its production capacity is difficult to meet the urgent needs of industrial applications.
In addition, the nanofiber membrane constructed by a single nanofiber still has the problem of low strength.
[0005] In the published Chinese patent literature, it can be seen that all technical information related to nanofiber antibacterial nonwoven materials and its preparation, such as CN105839291A recommends "a kind of nanofiber antibacterial n

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032]Example 1:

[0033]A) Polypropylene (PP) fibers as a micron fiber raw material are sequentially released from the opening machine, combing and laying the machine (i.e., the net) (i.e., web curtain or delivery) The microfiber layer as an intermediate layer is obtained by the aforementioned raw material.

[0034]B) First dissolve the polymethyl methacrylate as a solvent in N, N-dimethylformamide, and heated at a water bath temperature of 80 ° C for 10 h, resulting in a mass percent concentration of methyl methacrylate to 20%. Polymethyl methacrylate spinning fluid;

[0035]C) Using a pin-free nozzle as an electrospinning nozzle, the polymethyl methacrylate spunbium obtained by step b is supplied to the electrospinning nozzle by the supply liquid, such as a peristaltic pump, and controls a single (also The velocity of each) electrospinning head is 0.1 mL / h;

[0036]D) The receiving reticle is provided under the receiving reticle as described in step a), such as providing a ground metal pla...

Example Embodiment

[0045]Example 2:

[0046]A) Polylactic acid (PLA) fibers as a micron fiber raw material are sequentially released by the opening machine, combing and laying the machine (i.e., the net) (i.e., web curtain or delivery) The microfiber layer as an intermediate layer is obtained by the aforementioned raw material.

[0047]B) First dissolve the polymethyl methacrylate as a solvent in N, N-dimethylformamide, water bath at a water bath temperature of 40 ° C for 14 h, resulting in the mass percentage concentration of polymethyl methacrylate to 30% Polymethyl methacrylate spinning fluid;

[0048]C) Using a pin-free nozzle as an electrospinning nozzle, the polymethyl methacrylate spunbium obtained by step b is supplied to the electrospinning nozzle by the supply liquid, such as a peristaltic pump, and controls a single (also The velocity of each) electrospinning head is 15 mL / h;

[0049]D) A metal grounding apparatus such as providing a ground plane such as providing a ground metal plate in step a), and...

Example Embodiment

[0058]Example 3:

[0059]A) Polyester (PET) fibers, polypropylene (PP) fibers, polypropylene (PP) fibers, polypropylene (PP) fibers and polylactic acid (PLA) fibers, and the mixed fibers that are mixed in any weight, combing, combing, and The laying machine is laid (i.e., the net) is obtained by receiving a rigid (also known as a wire or conveying curtain) to obtain a microfiber layer composed of the aforementioned feedstock as an intermediate layer;

[0060]B) First dissolve the polymethyl methacrylate as a solvent in N, N-dimethylformamide, and heat 12 h at a water bath temperature of 60 ° C, and the mass percent concentration of polymethyl methacrylate is 10%. Polymethyl methacrylate spinning fluid;

[0061]C) Using a pin-free nozzle as an electrospinning nozzle, the polymethyl methacrylate spunbium obtained by step b is supplied to the electrospinning nozzle by the supply liquid, such as a peristaltic pump, and controls a single (also The velocity of each) electrospinning head is 8 mL / ...

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PUM

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Abstract

The invention discloses a micro-nano fiber composite non-woven medical and sanitary material and a preparation method thereof, and belongs to the technical field of non-woven composite materials and preparation thereof. The micro-nano fiber composite non-woven medical and sanitary material is composed of an outer layer, a middle layer and an inner layer, the outer layer is an electrostatic spinning polymethyl methacrylate nanofiber hydrophobic layer, the middle layer is a micron fiber layer, and the inner layer is a combination of an electrostatic spinning nanofiber antibacterial layer and an electrostatic spinning nanofiber additional functional layer. A good combination effect between the layers is guaranteed, the overall air permeability of the composite material is guaranteed, and liquid is effectively prevented from permeating into the material; the micron fiber layer serving as a middle layer can provide effective mechanical support and a certain barrier effect; the material of the inner layer in contact with the human body can provide a sanitary and safe microenvironment, and the electrostatic spinning nanofiber additional functional layer serving as the inner layer can also provide additional functions such as heating and growth factors; toxic and harmful substances in a medical and health scene are intercepted, and the excellent bacteriostatic and antibacterial effect is embodied; and the prepared product has good comfort in use.

Description

technical field [0001] The invention belongs to the technical field of non-woven composite materials and their preparation, and in particular relates to a micro-nano fiber composite non-woven medical and health material, and also relates to a preparation method thereof. Background technique [0002] Nonwoven materials for medical and health use include general medical supplies, external medical supplies, medical protective supplies, medical functional supplies, health care supplies and medical devices, etc. As the industry knows, medical supplies such as disposable surgical gowns and masks with excellent virus barrier effects play a very important and positive role in reducing or even preventing cross-infection and ensuring people's health and life safety. At present, the mainstream medical and sanitary nonwoven materials mainly use polypropylene fiber, and the preparation process generally uses spunbond and melt blown. The shortcomings of this type of product are: no antib...

Claims

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Application Information

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IPC IPC(8): B32B27/30B32B27/32B32B27/36B32B27/02B32B27/08B32B27/12D01F1/10D01F6/16D01F6/50D01F6/54D01F6/92D06M17/00
CPCB32B5/02B32B5/26B32B2262/0246B32B2262/0253B32B2262/0276B32B2307/21B32B2307/7145B32B2307/73D01F1/103D01F6/16D01F6/50D01F6/54D01F6/92D06M17/00
Inventor 王荣武樊海彬王浦国
Owner 苏州爱可思医疗科技有限公司
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