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Melt-blown medical protective material with cattail vein structure as well as preparation method and application of melt-blown medical protective material

A protective material and technology of cattail leaf veins are applied in the field of melt-blown medical protective material of cattail leaf vein structure and its preparation field, which can solve the problem that polylactic acid material is difficult to achieve balance in the field of sound insulation and noise reduction, and achieves good biodegradable characteristics, good The effect of water absorption and good hydrophilic properties

Active Publication Date: 2022-03-25
ZHONGYUAN ENGINEERING COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polylactic acid material produced by the above-mentioned preparation method is difficult to achieve a balance in the fields of environmental protection, wiping, cushioning and shock absorption, and sound insulation and noise reduction.

Method used

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  • Melt-blown medical protective material with cattail vein structure as well as preparation method and application of melt-blown medical protective material
  • Melt-blown medical protective material with cattail vein structure as well as preparation method and application of melt-blown medical protective material
  • Melt-blown medical protective material with cattail vein structure as well as preparation method and application of melt-blown medical protective material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A method for preparing a melt-blown medical protective material with a cattail vein structure, the forming process is as follows figure 1 , figure 2 and image 3 As shown, the steps are as follows:

[0040] (1) Preparation process of hydrophilic modified polymer

[0041] First, polyethylene glycol particles with an average particle diameter of 2500nm and sodium dodecylsulfonate particles with an average particle diameter of 1000nm are blended in a mass ratio of 1:1, and then heated and melted in a water bath to make them Evenly distributed, the temperature of the water bath is 80°C, and then mixed with polylactic acid particles according to the mass ratio of 2:98.

[0042] Then, the polylactic acid particles with hydrophilic modified particles are sent into a granulator to obtain hydrophilic modified particles / polylactic acid slices.

[0043] (2) The process of preparing and forming a web of oriented fiber layers

[0044] Send the hydrophilic modified particles / po...

Embodiment 2

[0056] A preparation method of a melt-blown medical protection material with cattail vein structure, the steps are as follows:

[0057] The preparation method of this example is the same as that of Example 1, the difference is that in step (1) the mass ratio of polyethylene glycol and sodium dodecylsulfonate blended hydrophilic modified particles to polylactic acid raw material is 3 : 97 ratio mix.

[0058] The test results of its characteristics are shown in Table 1.

Embodiment 3

[0060] A preparation method of a melt-blown medical protection material with cattail vein structure, the steps are as follows:

[0061] The preparation method of this example is the same as that of Example 1, the difference is that in step (1) the mass ratio of polyethylene glycol and sodium dodecylsulfonate blended hydrophilic modified particles to polylactic acid raw material is 4 : 96 ratio mix.

[0062] The test results of its characteristics are shown in Table 1.

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Abstract

The invention belongs to the field of melt-blown, hot air and spunlace non-woven materials, and relates to preparation of superfine fibers, in particular to a melt-blown medical protective material with a cattail vein structure as well as a preparation method and application of the melt-blown medical protective material. The melt-blown medical protective material is of a three-layer fiber structure, the surface layer and the bottom layer are hydrophilic degradable directionally-arranged fiber layers, and the middle layer is a fluffy degradable cellulose fiber layer; the preparation method comprises the following steps: preparing the hydrophilic modified polymer; preparing and netting a directionally arranged fiber layer; drafting and forming the directionally arranged fiber layer; preparing a fluffy degradable cellulose fiber layer; a spunlace reinforcing procedure of the three-layer composite material; finally, the non-woven composite material which is high in longitudinal strength and capable of achieving horizontal directional diffusion of liquid is formed. The environment-friendly degradable raw materials are adopted, the environment-friendly preparation method is also adopted, and the material can be widely applied to the fields of medical protection, sound insulation and noise reduction materials, buffering and damping materials, wiping materials and the like.

Description

technical field [0001] The invention belongs to the field of melt-blown, hot-air and spunlace nonwoven materials, and relates to the preparation of superfine fibers, in particular to a melt-blown medical protective material with a cattail vein structure and its preparation method and application. Background technique [0002] With the rapid development of the economy, the problems of environmental pollution and resource scarcity are becoming more and more serious. Therefore, green development and resource regeneration are gradually being valued. However, most polymer materials (such as polypropylene, polyethylene, and polyester) are petroleum-based materials, which are difficult to degrade naturally and will cause irreversible damage to the natural ecology. Therefore, bio-friendly materials with biomimetic structures have attracted more and more attention. [0003] As a biodegradable polymer material, polylactic acid has good thermoplasticity and certain thermal stability....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/56D04H1/435D04H1/74D04H1/4258D04H1/4374D04H1/492D04H1/498D01F1/10D01F6/92D01D5/098
CPCD04H1/56D04H1/435D04H1/74D04H1/4258D04H1/4374D04H1/492D04H1/498D01F1/10D01F6/92D01D5/0985
Inventor 甄琪张恒段书霞曹阳李霞杨武周永恒李晓聪李新张一风章伟
Owner ZHONGYUAN ENGINEERING COLLEGE
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