Hydrophilic melt-blown fabric and preparation method thereof

A technology of melt-blown cloth and hydrophilic type, which is applied in the direction of melt spinning, non-woven fabric, filament/thread forming, etc., can solve the problems of lack of micropores and gaps, poor hydrophilicity, etc., and achieve a simple and good preparation method Effects of hydrophilic properties and good antibacterial properties

Active Publication Date: 2020-10-09
宣城广能非织造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, untreated PP melt-blown nonwovens have poor hydrophilicity, because PP has a macromolecular st

Method used

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  • Hydrophilic melt-blown fabric and preparation method thereof
  • Hydrophilic melt-blown fabric and preparation method thereof
  • Hydrophilic melt-blown fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of embodiment 1 hydrophilic type meltblown cloth

[0032] S1. The preparation method of hydrophilic modified polypropylene is as follows: 70g of 3-butene-1-amine monomer, 100g of polypropylene and 0.1g of tert-butyl peroxybenzoate are mixed, heated to 200°C to melt, and graft copolymerization occurs React for 1 hour, then add 100 mL of 0.5 mol / dilute hydrochloric acid to soak and react for 0.5 hours, filter, dry at 100°C to constant weight, then feed into a screw extruder, heat to 180°C, extrude, cool, and finally cut into uniform Hydrophilic modified polypropylene, the chemical structural formula is shown in formula Ⅰ:

[0033]

[0034] Formula I;

[0035] S2. Preparation of hydrophilic modified polypropylene fiber: Add 100g of hydrophilic modified polypropylene into the screw injection molding machine, heat and melt the filaments, the heating and melting temperature is 180°C, and stretch under the action of hot air to obtain hydrophilic Mod...

Embodiment 2

[0041] The preparation method of embodiment 2 hydrophilic type meltblown cloth

[0042] S1. The preparation method of hydrophilic modified polypropylene is as follows: 100g of 3-butene-1-amine monomer, 150g of polypropylene and 1g of potassium persulfate are mixed, heated to 230°C to melt, and graft copolymerization takes place for 3 hours, then, Add 200mL2mol / dilute hydrochloric acid to soak for 2 hours, filter, dry at 105°C to constant weight, then feed into a screw extruder, heat to 200°C, extrude, cool, and finally cut into uniform hydrophilic modified polypropylene;

[0043] S2. Preparation of hydrophilic modified polypropylene fiber: Add 100g of hydrophilic modified polypropylene into the screw injection molding machine, heat and melt the filaments, the heating and melting temperature is 220°C, and stretch under the action of hot air to obtain hydrophilic Modified polypropylene fiber;

[0044] S3. Preparation of melt-blown yarn: the hydrophilic modified polypropylene fi...

Embodiment 3

[0049] The preparation method of embodiment 3 hydrophilic type meltblown cloth

[0050] S1. The preparation method of hydrophilic modified polypropylene is as follows: 85g of 3-butene-1-amine monomer, 125g of polypropylene and 0.5g of azobisisobutyronitrile are mixed, heated to 215°C to melt, and graft copolymerization occurs 2h, then add 200mL of 1.2mol / dilute hydrochloric acid to soak for 1h, filter, dry at 102°C to constant weight, then feed into a screw extruder, heat to 190°C, extrude, cool, and finally cut into uniform hydrophilic Modified polypropylene;

[0051] S2. Preparation of hydrophilic modified polypropylene fiber: Add 100g of hydrophilic modified polypropylene into the screw injection molding machine, heat and melt the filaments, the heating and melting temperature is 200°C, and stretch under the action of hot air to obtain hydrophilic Modified polypropylene fiber;

[0052] S3. Preparation of melt-blown yarn: the hydrophilic modified polypropylene fiber is dra...

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 provides a hydrophilic melt-blown fabric. The hydrophilic melt-blown fabric is prepared from hydrophilic modified polypropylene, deionized water and tetraethoxysilane, wherein the hydrophilic modified polypropylene is prepared by polymerizing polypropylene and a 3-butenyl-1-amine monomer and reacting with hydrochloric acid, and the chemical structural formula is shown as a formula I.The preparation method is simple, the prepared melt-blown non-woven fabric has excellent hydrophilic performance and good antibacterial performance and can be applied to sanitary products such as sanitary towels, diapers, sanitary cleaning cloth and the like, and the hydrophilic performance of the melt-blown fabric is remarkably improved under the action of the hydrophilic modified polypropyleneand interlayer silicon dioxide; and meanwhile, chloride ions are dissociated under the action of water, and a good sterilization effect is achieved; the material can be repeatedly used after being subjected to chlorine bleaching again, and the service life of the material is prolonged. The formula I is shown in the specification

Description

technical field [0001] The invention relates to the technical field of meltblown cloth, in particular to a hydrophilic meltblown cloth and a preparation method thereof. Background technique [0002] Melt-blown nonwovens were first developed by the U.S. Navy in 1954. Through the air jet method, the fiber diameter can be controlled below 5 μm. Because the fiber diameter is small and soft, it is made into a nonwoven fabric. With the continuous development and improvement of technology, the application of melt-blown non-woven materials in filtration, waterproof, adsorption, anti-bacteria, warmth, medical and health care has increased. In recent years, new materials, new processes and new products of melt-blown nonwovens have emerged continuously, and the application fields have continued to expand. [0003] Melt-blown non-woven fabrics are low in production cost and have the characteristics of softness and fluffiness, so they can be used as the base material of wet wipes to en...

Claims

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Application Information

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IPC IPC(8): D04H1/4291D04H3/007D01D5/098C08F255/02C08F226/02C08F8/44D01F6/30
CPCC08F8/44C08F255/02D01D5/098D01F6/30D04H1/4291D04H3/007D10B2401/022D10B2401/13D10B2509/026C08F226/02
Inventor 张华艳
Owner 宣城广能非织造有限公司
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