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High-abrasion-resistance PU synthetic leather and preparation method thereof

A synthetic leather, high wear-resistant technology, used in textiles and papermaking, etc., can solve the problem of thermal temperature resistance, light stability, hydrolysis stability, weak air permeability and antibacterial properties, poor wear resistance of PU coating, and problems for users Health hazards and other issues, to improve the electromagnetic shielding performance, inhibit the growth of bacteria, and protect the health of the body

Inactive Publication Date: 2020-08-21
吕兴鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to make up for the deficiencies of the existing technology and solve the problems in the prior art, PU coatings have thermal temperature resistance, light stability, hydrolysis stability, air permeability and weak antibacterial properties, and are prone to mildew when used in a humid environment for a long time. It is easy to breed bacteria, which will cause harm to the health of users. At the same time, the wear resistance of the PU coating is not good, and it is easy to produce pinholes after friction on the leather surface, which will affect the appearance of the leather, and it is easy to generate static electricity after long-term use. , it is difficult to meet the use conditions with high strength requirements, etc., the present invention proposes a kind of high wear-resistant PU synthetic leather and its preparation method

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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  • High-abrasion-resistance PU synthetic leather and preparation method thereof
  • High-abrasion-resistance PU synthetic leather and preparation method thereof
  • High-abrasion-resistance PU synthetic leather and preparation method thereof

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preparation example Construction

[0031] like Figure 1 to Figure 5 As shown, the preparation method of a kind of high wear-resistant PU synthetic leather of the present invention, this preparation method comprises the following steps:

[0032] S1: Raw materials of coating 2: according to 50 parts of aliphatic or alicyclic isocyanate, 50 parts of polycarbonate diol, 4-8 parts of glass fiber powder, 1-3 parts of silica, and 1-3 parts of silica parts, 0.1-0.2 parts of ethylene bis-stearamide, 0.1-0.2 parts of higher alcohol, 0.5-1.5 parts of chitosan oligosaccharide, 1-3 parts of nano silver, 1-3 parts of water, 15-25 parts of dimethylformamide parts, 5-10 parts of additives, 10-15 parts of wear-resistant additives, weigh each raw material and set aside; the PU coating prepared from the above-mentioned raw materials has excellent waterproofness, air permeability and antibacterial property compared with the traditional technical PU coating , It can be used in a humid environment for a long time, and it is not ea...

Embodiment approach

[0041]As an embodiment of the present invention, an adsorption layer 12 is attached to the lower surface of the fiber reinforced layer 11; the adsorption layer 12 is designed with activated carbon material; during operation, by setting the adsorption layer 12, harmful gases in the air can be adsorbed , to prevent the gas emitted from the synthetic leather from causing harm to the human body, and the inside of the adsorption layer 12 can emit negative ions, which is beneficial to human health.

[0042] As an embodiment of the present invention, the double-layer composite non-woven fabric is provided with evenly arranged first guide holes 31 on one side of the release paper 3; the double-layer composite non-woven fabric is away from the release paper. 3. There are second guide holes 32 evenly arranged on one side; the number of the second guide holes 32 and the first guide holes 31 are equal, and the positions are set in one-to-one correspondence; Small lime particles 34; when w...

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 PU synthetic leather, and particularly relates to high-abrasion-resistance PU synthetic leather and a preparation method thereof. The PU synthetic leather comprises a base fabric layer, a coating and release paper; the base fabric layer is made of a non-woven fabric material and adopts a double-layer composite material, and the upper surface of the base fabric layer is covered with the coating; the coating is divided into a cortex coating and a skin coating; the upper surface of the base fabric layer is covered with the cortex coating; and the upper surface of the skin coating is bonded with the release paper. Through the high-abrasion-resistance PU synthetic leather and the preparation method thereof, it is effectively achieved that PU synthetic leather is washable, small in quality change, not prone to generating static electricity, high in strength and excellent in antibacterial performance, meanwhile, the stable electromagnetic shielding performance is achieved, moreover, the abrasion resistance of a PU coating is substantially improved, pinholes are not prone to being generated after the surface of the leather is rubbed, and thebeauty of the appearance can be kept for a long time during using.

Description

technical field [0001] The invention belongs to the technical field of PU synthetic leather, in particular to a high wear-resistant PU synthetic leather and a preparation method thereof. Background technique [0002] PU synthetic leather (polyurethane synthetic leather) The back of PU synthetic leather is cloth base (or knitted cloth base), which is easy to melt when burned. It has many advantages that pvc synthetic leather cannot match. It is an ideal material to replace natural leather. [0003] For the PU coating on the surface of PU synthetic leather, polyurethane is a product synthesized from diisocyanate, polyglycol and short-chain diol. Due to its excellent mechanical properties, solvent resistance and oil resistance, a wide range of Used in coatings, automobiles, synthetic leather, furniture, fibers, construction and adhesive industries. [0004] According to CN108547156A, a PU leather fabric for yacht sofa cover and its manufacturing method, in the prior art, the P...

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): D06N3/00D06N3/14
CPCD06N3/0059D06N3/0097D06N3/14D06N2209/105
Inventor 吕兴鹏
Owner 吕兴鹏
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