Low-atomization PU synthetic leather and preparation method thereof

A technology of synthetic leather and PU resin, which is applied in the field of synthetic leather, can solve the problems of complex preparation process of artificial leather, and achieve the effect of low atomization value

Active Publication Date: 2021-10-15
SUZHOU BEST DECORATION NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the test results in this patent, there is still a certain degree of atomization, and the preparation process of artificial leather is complicated

Method used

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  • Low-atomization PU synthetic leather and preparation method thereof
  • Low-atomization PU synthetic leather and preparation method thereof
  • Low-atomization PU synthetic leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The PU synthetic leather provided in this embodiment comprises a base cloth layer, an adhesive layer, an intermediate layer, a surface layer and a surface treatment layer formed on the surface layer which are stacked in sequence, wherein,

[0034] The raw material formula of the surface layer is 50 parts of water-based polycarbonate polyurethane resin, 50 parts of water-based polyether polyurethane resin, 0.8 part of leveling agent and 5 parts of colorant.

[0035] The raw material formula of the middle layer is 40 parts of JF-HSY-9041A, 60 parts of JF-HSY-9920A, 7 parts of amine curing agent JF-BY-1007, 0.4 parts of leveling agent and 25 parts of phosphorus flame retardant.

[0036] The raw material formula of the adhesive layer is 100 parts of adhesive and 0.4 parts of phosphorus flame retardant.

[0037] The raw material formula of the finishing agent used in the surface treatment layer is 80 parts of water-based matte polycarbonate polyurethane resin, 20 parts of wa...

Embodiment 2

[0044] The PU synthetic leather provided in this embodiment comprises a base cloth layer, an adhesive layer, an intermediate layer, a surface layer and a surface treatment layer formed on the surface layer which are stacked in sequence, except that the formula of the intermediate layer is different from that of Example 1 , all the other are with embodiment 1.

[0045] In this example, the raw material formula of the middle layer is 50 parts of JF-HSY-9041A, 50 parts of JF-HSY-9920A, 1006 parts of amine curing agent, 0.4 parts of leveling agent and 20 parts of phosphorus-based flame retardant.

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Abstract

The invention relates to low-atomization PU synthetic leather and a preparation method thereof. The low-atomization PU synthetic leather comprises a base cloth layer, a bonding layer, a middle layer and a surface layer which are sequentially stacked; a raw material formula of the middle layer comprises middle layer PU resin; the middle layer PU resin comprises JF-HSY-9041A and JF-HSY-9920A; the mass ratio of the JF-HSY-9041A to the JF-HSY-9920A is 1: (0.8-1.5); and the JF-HSY-9041A and the JF-HSY-9920A are from Zhejiang Huafeng synthetic resin Ltd. According to the invention, the middle layer of the synthetic leather is improved, the formula of the middle layer is optimized, the two kinds of high-solid-content resin JF-HSY-9041A and JF-HSY-9920A of Huafeng are compounded according to a certain mass ratio, and the prepared synthetic leather is free of precipitation and low in atomization value.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a low-atomization PU synthetic leather and a preparation method thereof. Background technique [0002] Fogging is the condensation on glass of volatile substances emitted by automotive interior parts and materials. Automotive interior materials, such as leather, plastics, textiles, and adhesives for bonding materials, all contain some volatile substances. Under the sunlight, the temperature inside the car will increase, which will aggravate this volatilization. Volatile gases condense on car windows or windshields, causing poor vision, which will affect the driver's sight and driving safety; some volatile substances will also affect the health of drivers and passengers. [0003] In the prior art, in order to solve the above problems, there are patents disclosing the method of using high-temperature negative pressure desorption, such as a method disclosed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
CPCD06N3/141D06N3/145D06N3/0059D06N3/0088D06N3/0097D06N2209/14Y02P70/62
Inventor 匡建武张术根丁磊罗津
Owner SUZHOU BEST DECORATION NEW MATERIALS
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