Self-healing non-woven fabric

A non-woven, self-healing technology, applied in fiber types, non-woven fabrics, textiles and papermaking, etc., can solve problems such as difficult non-woven fabrics, blocked nozzles, and deterioration of wire tensile strength, and achieves improved tensile strength. Lower melt viscosity, better bonding effect

Active Publication Date: 2021-08-10
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

AI Technical Summary

Problems solved by technology

For example, the patent announcement is "CN111320413A", and the material named "a self-repairing material for buildings" 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 of 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-healing non-woven fabric
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  • Self-healing non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A preparation process for self-repairing non-woven fabrics, comprising the following steps:

[0042] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0043] S2. Pretreatment: Mix 12 parts of turpentine oil and 4.5 parts of cuprous chloride powder evenly, send them to a colloid mill to grind them into colloids, 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 and 4 parts of melamine are fed into melting equipment to melt, and then turpentine-chlorinated chlorinated 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 are put into the melt and stirred rapidly, and then filtered through a melt filter with a filtration accuracy of 40 μm;

[0045]S4. Wire drawing: the melt obtained in the melting of S3 is drawn through...

Embodiment 2

[0050] A preparation process for self-repairing non-woven fabrics, comprising the following steps:

[0051] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0052] S2. Pretreatment: Mix 10 parts of turpentine oil and 5 parts of cuprous chloride powder evenly, send them to a colloid mill to grind them into colloids, 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 and 3 parts of melamine are fed into melting equipment to melt, and then turpentine-chlorinated chlorinated Copper mixture, 4 parts of polyaluminum chloride and 3.5 parts of hydroxyl-terminated polydimethylsiloxane with a number average molecular weight of 12000) are put into the melt for rapid stirring, and then filtered through a melt filter with a filtration accuracy of 30 μm;

[0054] S4. Wire drawing: the melt obtained in the melting of S3 is drawn through the spi...

Embodiment 3

[0059] A preparation process for self-repairing non-woven fabrics, comprising the following steps:

[0060] S1. Drying: drying all raw materials until the final moisture content is less than 35ppm;

[0061] S2. Pretreatment: Mix 15 parts of turpentine oil and 3 parts of cuprous chloride powder evenly, send them to a colloid mill to grind them into colloids, 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 and 5.5 parts of melamine are fed into melting equipment to melt, and then turpentine-chlorinated chlorinated The copper mixture, 3 parts of polyaluminum chloride and 5 parts of hydroxyl-terminated polydimethylsiloxane with a number average molecular weight of 5000 are put into the melt and stirred rapidly, and then filtered through a melt filter with a filtration accuracy of 50 μm;

[0063] S4. Wire drawing: the melt obtained in the melting of S3 is drawn through 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, in particular to self-repairing non-woven fabrics, including PET slices, acrylamide-maleic anhydride-acrylic acid copolymer, turpentine, cuprous chloride, melamine, through S1. drying, S2. Processing, S3. Melting, S4. Drawing, S5. Swinging, S6. Acupuncture to make self-healing non-woven fabric. The present invention has the following advantages: 1. by adding acrylamide-maleic anhydride-acrylic acid copolymer and cuprous chloride, the non-woven fabric made has self-repairing properties; 2. adding turpentine and melamine simultaneously can reduce the Melt viscosity makes spinning smoother, on the other hand, it can make the combination between acrylamide-maleic anhydride-acrylic acid copolymer and PET better, making the final spinning consistency stronger; 3. Add cementation The binder and the toughening agent, the cementing agent improves the internal mutual bonding force of the fiber web, and the toughening agent can improve the tensile effect of the thread.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, in particular to self-repairing 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 have the characteristics of moisture-proof, breathable, flexible, light weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. For example, plastic granules are mostly used as raw materials, which are produced by continuous one-step process of high-temperature melting, spinning, laying, and hot-pressing coiling. [0003] A major use direction of non-woven fabrics is as the base layer of waterproof membranes, and the service life of waterproof membranes is very long, and various physical damages will inevitably occur during use, while waterproof membranes are rarel...

Claims

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Application Information

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Patent Type & Authority Patents(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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