Self-repairing non-woven fabric

A non-woven fabric and self-repairing technology, which is applied in the direction of non-woven fabric, fiber type, filament forming treatment, etc., can solve the problems of difficult non-woven fabrics, deterioration of silk tensile strength, clogged nozzles, etc., to improve tensile strength , better bonding effect, lower melt viscosity

Active Publication Date: 2020-12-04
恒兆(湖北)新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the patent announcement is "CN111320413A", and the material named "a building self-repairing material" uses this principle, but this principle is very difficult to apply to non-woven fabrics, because the main drawing process of non-woven fabrics is melting Spraying or electrospinning or other external force drawing, if particle capsules are added, the nozzle will be blocked, and the particles will occupy a large part of the cross-section of the thread, resulting in a sharp deterioration in the tensile strength of the thread

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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  • Self-repairing non-woven fabric
  • Self-repairing non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A preparation process of a self-healing non-woven fabric, comprising the following steps:

[0042] S1. Drying: Dry all raw materials to a final moisture content of less than 35ppm;

[0043] S2. Pretreatment: Mix 12 parts of turpentine and 4.5 parts of cuprous chloride powder evenly, send it to a colloid mill to grind into a colloid, and control the temperature not to exceed 50°C;

[0044]S3. Melting: 110 parts of PET chips, 60 parts of acrylamide-maleic anhydride-acrylic acid copolymer with a content of 30% by weight of the calibrated acrylamide chain segment and 4 parts of melamine are sent to melting equipment to be melted, and then turpentine-chlorine The copper mixture, 3-4 parts of polyaluminum chloride and 4.4 parts of hydroxyl-terminated polydimethylsiloxane with a number-average molecular weight of 10,000 were put into the melt and quickly stirred, and then filtered through a melt filter with a filtration accuracy of 40 μm;

[0045] S4. Wire drawing: the melt o...

Embodiment 2

[0050] A preparation process of a self-healing non-woven fabric, comprising the following steps:

[0051] S1. Drying: Dry all raw materials to a final moisture content of less than 35ppm;

[0052] S2. Pretreatment: Mix 10 parts of turpentine and 5 parts of cuprous chloride powder evenly, send it to a colloid mill to grind into a colloid, and control the temperature not to exceed 50°C;

[0053] S3. Melting: 100 parts of PET chips, 70 parts of acrylamide-maleic anhydride-acrylic acid copolymer with a content of 30% by weight of the calibrated acrylamide chain segment and 3 parts of melamine are sent into the melting equipment to be melted, and then the turpentine-chloride The copper mixture, 4 parts of polyaluminum chloride and 3.5 parts of hydroxyl-terminated polydimethylsiloxane with a number average molecular weight of 12,000) were put into the melt and quickly stirred, and then filtered through a melt filter with a filtration accuracy of 30 μm;

[0054] S4. Wire drawing: th...

Embodiment 3

[0059] A preparation process of a self-healing non-woven fabric, comprising the following steps:

[0060] S1. Drying: Dry all raw materials to a final moisture content of less than 35ppm;

[0061] S2. Pretreatment: Mix 15 parts of turpentine and 3 parts of cuprous chloride powder evenly, send it to a colloid mill to grind into a colloid, and control the temperature not to exceed 50°C;

[0062] S3. Melting: 120 parts of PET chips, 50 parts of acrylamide-maleic anhydride-acrylic acid copolymer with a content of 30% by weight of the calibrated acrylamide chain segment and 5.5 parts of melamine are sent into the melting equipment to be melted, and then the turpentine-chloride The copper mixture, 3 parts of polyaluminum chloride and 5 parts of hydroxyl-terminated polydimethylsiloxane with a number-average molecular weight of 5,000 were put into the melt and quickly stirred, and then filtered through a melt filter with a filtration accuracy of 50 μm;

[0063] S4. Wire drawing: the ...

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 belongs to the technical field of non-woven fabrics, and particularly relates to a self-repairing non-woven fabric. The self-repairing non-woven fabric is prepared from PET slices, an acrylamide-maleic anhydride-acrylic acid copolymer, turpentine, cuprous chloride and melamine through the steps of S1, drying, S2, pretreatment, S3, melting, S4, wire drawing, S5, wire swinging and S6,needling. The self-repairing non-woven fabric has the following advantages that 1, the acrylamide-maleic anhydride-acrylic acid copolymer and the cuprous chloride are added, so that the prepared non-woven fabric has a self-repairing characteristic; 2, the turpentine and the melamine are added at the same time, so that on one hand, the melt viscosity can be reduced, spinning is smoother, on the other hand, the bonding effect between the acrylamide-maleic anhydride-acrylic acid copolymer and PET is better, and the final spinning consistency is higher; and 3, a cementing agent and a toughening agent are added, the mutual binding force in a fiber net is improved by the cementing agent, and the tensile effect of silk threads can be improved by the toughening agent.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, and particularly relates to self-healing non-woven fabrics. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are composed of oriented or random fibers. It is called cloth because of its appearance and certain properties. Non-woven fabrics are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, plastic particles are mostly used as raw materials, which are produced by a continuous one-step method of high temperature melting, spinning, laying, and hot pressing and coiling. [0003] One of the major directions of use of non-woven fabrics is to be used as the base layer of the waterproof membrane, and the service life of the waterproof membrane is very long, and various physical damages will inevitably occur during use, and the wate...

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 Applications(China)
IPC IPC(8): D04H1/4382D04H1/46D01D1/10D06M13/02D06M101/32D06M101/26
CPCD01D1/106D01F1/10D01F8/10D01F8/14D04H1/4382D04H1/46D06M13/02D06M2101/26D06M2101/32
Inventor 李勇
Owner 恒兆(湖北)新材料科技股份有限公司
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