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Novel synthetic leather material and preparation method thereof

A synthetic leather and a new technology, applied in the field of synthetic leather, can solve the problems affecting the basic performance of synthetic leather, unreasonable material structure ratio, unfavorable preparation and production, etc. Excellent performance

Inactive Publication Date: 2020-01-03
浙江合力革业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing synthetic leather materials not only use complex material components and high cost, but also have unreasonable material structure ratios, which affect the basic performance of synthetic leather and are not conducive to production. A new type of material needs to be proposed to reduce costs and improve performance

Method used

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Examples

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preparation example Construction

[0025] As preferably, the preparation method of described aqueous polyurethane comprises the steps:

[0026] S1. Add the amount of macromolecular polyol and the amount of isocyanate into the reactor, and uniformly stir and mix to obtain the first mixture;

[0027] S2. Heating the first mixture to 120°C to 130°C under nitrogen atmosphere protection, and dehydrating for 2 hours to 3 hours to obtain a dehydration mixture;

[0028] S3, cooling the dehydration mixture to 80°C to 85°C, adding isocyanate, dibutyltin dilaurate and triethylamine, and keeping the temperature for 3 hours to 4 hours to obtain the second mixture;

[0029] S4, cooling the second mixture to 50°C to 60°C, adding a chain extender, mixing evenly, and extending the chain for 30 minutes to 45 minutes to obtain a water-based polyurethane raw material;

[0030] S5. Add a thickener into the water-based polyurethane raw material to adjust the thickness to obtain the water-based polyurethane.

[0031] Preferably, th...

Embodiment 1

[0042] A novel synthetic leather material and a preparation method thereof. The novel synthetic leather material is water-based polyurethane, which is made of the following raw materials: 40% macromolecular polyol, 15% isocyanate, 15% dibutyltin dilaurate, and 10% triethylamine. %, chain extender 5% and thickener 15%.

[0043] As preferably, the preparation method of described aqueous polyurethane comprises the steps:

[0044] S1. Add the amount of macromolecular polyol and the amount of isocyanate into the reactor, and uniformly stir and mix to obtain the first mixture;

[0045] S2. Heating the first mixture to 120°C to 130°C under nitrogen atmosphere protection, and dehydrating for 2 hours to 3 hours to obtain a dehydration mixture;

[0046] S3, cooling the dehydration mixture to 80°C to 85°C, adding isocyanate, dibutyltin dilaurate and triethylamine, and keeping the temperature for 3 hours to 4 hours to obtain the second mixture;

[0047] S4, cooling the second mixture to...

Embodiment 2

[0059] A novel synthetic leather material and a preparation method thereof. The novel synthetic leather material is water-based polyurethane, which is made of the following raw materials: 34% macromolecular polyol, 20% isocyanate, 15% dibutyltin dilaurate, and 15% triethylamine. %, chain extender 6% and thickener 10%.

[0060] As preferably, the preparation method of described aqueous polyurethane comprises the steps:

[0061] S1. Add the amount of macromolecular polyol and the amount of isocyanate into the reactor, and uniformly stir and mix to obtain the first mixture;

[0062] S2. Heating the first mixture to 120°C to 130°C under nitrogen atmosphere protection, and dehydrating for 2 hours to 3 hours to obtain a dehydration mixture;

[0063] S3, cooling the dehydration mixture to 80°C to 85°C, adding isocyanate, dibutyltin dilaurate and triethylamine, and keeping the temperature for 3 hours to 4 hours to obtain the second mixture;

[0064] S4, cooling the second mixture to...

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PUM

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Abstract

The invention discloses a novel synthetic leather material and a preparation method thereof. The novel synthetic leather material is waterborne polyurethane and is prepared from the following raw materials: 25-40% of a macromolecular polyol, 15-25% of an isocyanate, 10-15% of dibutyltin dilaurate, 5-15% of triethylamine, 2-6% of a chain extender and 5-15% of a thickening agent. According to the novel synthetic leather material and the preparation method thereof provided by the invention, the waterborne polyurethane material is used, so that the structural performance is excellent, and the leather material is good; meanwhile, through reasonable material proportioning, the preparation process can be simplified, control and operation are facilitated, and large-scale preparation is facilitated; and meanwhile, the thickening agent is added for blending, so that diversification of the raw materials can be ensured, and large-scale popularization and use are facilitated.

Description

technical field [0001] The invention relates to the technical field of synthetic leather, in particular to a novel synthetic leather material and a preparation method thereof. Background technique [0002] In today's daily life, the use of synthetic leather is very common. It can not only simulate the characteristics of natural leather, but also facilitate large-scale production and processing, and has been favored by consumers. [0003] However, the existing synthetic leather materials not only use complex material components and high cost, but also have unreasonable material structure ratios, which affect the basic performance of synthetic leather and are not conducive to production. A new type of material needs to be proposed to reduce costs and improve performance. Contents of the invention [0004] The purpose of the present invention is to solve the shortcoming existing in the prior art, and propose a kind of novel synthetic leather material and preparation method t...

Claims

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Application Information

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IPC IPC(8): C08G18/65C08G18/32C08G18/66C08G18/48
CPCC08G18/3206C08G18/3228C08G18/3231C08G18/3234C08G18/4833C08G18/6529C08G18/6677D06N3/14D06N2211/28
Inventor 王爵康张松炎
Owner 浙江合力革业有限公司
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