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A kind of superfine fiber synthetic leather resin for automobile interior decoration and preparation method thereof

A technology for ultra-fine fibers and automotive interiors, which is applied in the field of ultra-fine fiber synthetic leather resins for automotive interiors and its preparation, and can solve the problems of high cost, low utilization rate, and heavy metal content that easily exceed the standard.

Active Publication Date: 2020-12-29
福建汇得新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the improvement of living standards and changes in lifestyles, people have more and more opportunities to ride in cars, which puts forward new and higher requirements for the quality of automotive interior leather. Due to the limited resources of natural leather, the environmental pollution during processing is relatively high. Seriously, the content of heavy metals is easy to exceed the standard, and the utilization rate in the processing process is low, so its cost is generally relatively expensive. Therefore, domestic and foreign enterprises are actively exploring the application of synthetic leather in the production of automotive interiors.

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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  • A kind of superfine fiber synthetic leather resin for automobile interior decoration and preparation method thereof
  • A kind of superfine fiber synthetic leather resin for automobile interior decoration and preparation method thereof
  • A kind of superfine fiber synthetic leather resin for automobile interior decoration and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Formula

[0026]

[0027] 2. Preparation method

[0028] Put polycarbonate-caprolactone diol (number-average molecular weight 2000g / mol) 76kg, polyadipate type polyester polyol (number-average molecular weight 2000g / mol) 38kg, polyadipate-3 formaldehyde in the reactor Base-1,5-pentanediol ester diol (number-average molecular weight 2000g / mol) 11kg, N,N-dimethylformamide 94kg, after stirring evenly, put in diphenylmethane-4,4'-diisocyanate 15.6kg , the reaction temperature is controlled at 75-85°C. After reacting for 4-6 hours, when the viscosity of the reaction system reaches 80-90Pa·s / 50°C, put 76kg of modified polytetrahydrofuran diol (number-average molecular weight 2000g / mol) into the reaction kettle , 13.9kg of ethylene glycol, 14.8kg of hydroquinone-bis(β-hydroxyethyl) ether and 308kg of N,N-dimethylformamide, stir well and put in diphenylmethane-4,4'-diphenylmethane 79.3 kg of isocyanate, the reaction temperature is controlled at 75-85°C, after 1-2 hours ...

Embodiment 2

[0030] 1. Formula

[0031]

[0032] 2. Preparation method

[0033] Put polycarbonate-caprolactone diol (number average molecular weight 2000g / mol) 120kg, polyadipate type polyester polyol (number average molecular weight 3000g / mol) 40kg, polydimethylsiloxane in the reactor 10kg of dihydric alcohol (number average molecular weight 2000g / mol), 102kg of N,N-dimethylformamide, after stirring evenly, put in 19kg of diphenylmethane-4,4'-diisocyanate, and control the reaction temperature at 75-85°C , after reacting for 4-6 hours, when the viscosity of the reaction system reaches 90-110Pa·s / 50°C, put 40kg of modified polytetrahydrofuran diol (number-average molecular weight 3000g / mol) and 7.1kg of ethylene glycol into the reaction kettle. Diphenol-bis(β-hydroxyethyl) ether 22.6kg and N, N-dimethylformamide 290kg, after stirring evenly, drop into diphenylmethane-4, 4'-diisocyanate 58kg, the reaction temperature is controlled at 75~ 85°C, after reacting for 1-2 hours, add the remai...

Embodiment 3

[0035] 1. Formula

[0036]

[0037] 2. Preparation method

[0038]In the reactor, drop into polycarbonate-caprolactone diol (number average molecular weight 2000g / mol) 66kg, polyadipate-3 methyl-1,5 pentanediol ester diol (number average molecular weight 3000g / mol) 28kg, polydimethylsiloxane diol (number-average molecular weight 2000g / mol) 8kg, N, N-dimethylformamide 114kg, after stirring evenly, drop into diphenylmethane-4, 4'-diisocyanate 11.5 kg, the reaction temperature is controlled at 75-85°C, and after 4-6 hours of reaction, when the viscosity of the reaction system reaches 100-110Pa·s / 50°C, put modified polytetrahydrofuran diol (number-average molecular weight 2000g / mol) into the reaction kettle 94kg, 16.4kg of ethylene glycol, 26.2kg of hydroquinone-bis(β-hydroxyethyl) ether and 305kg of N,N-dimethylformamide, stir well and put into diphenylmethane-4,4'- 106 kg of diisocyanate, the reaction temperature is controlled at 75-85°C, after 1-2 hours of reaction, add th...

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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PUM

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Abstract

The invention relates to a superfine fiber synthetic leather resin for automobile interior trim and a preparation method of the resin. The polyurethane resin comprises the following components in percentage by weight: 4.0%-9.0% of modified polytetrahydrofuran glycol, 6.5%-12.0% of polycarbonate-caprolactone glycol, 2.3%-4.0% of polyadipic acid type polyester polyol, 8.0%-12.0% of diphenylmethane-4,4'-diisocyanate, 0.7%-1.6% of ethylene glycol, 1.2%-2.5% of hydroquinone-bis(beta-hydroxyethyl)ether, 0.5%-1.0% of polydimethylsiloxane dihydric alcohol, and 65%-70% of N,N-dimethyl formamide. Through the detection on the superfine fiber synthetic leather base cloth prepared from the resin according to the method specified in the ''QB / T 4194-2011 polyurethane synthetic leather for automobile'',the heat aging resistance, cold resistance and folding endurance and the like all meet the requirements of synthetic leather for automobile interior trim.

Description

technical field [0001] The invention relates to the technical field of polyurethane resin preparation, in particular to a superfine fiber synthetic leather resin for automobile interior decoration and a preparation method thereof. Background technique [0002] Microfiber synthetic leather is a high-density nonwoven fabric with a three-dimensional network structure made of bundled ultrafine fibers similar in structure and function to bundled collagen fibers in natural leather, and filled with polyurethane with a high-quality open microporous structure. Resin, combined with composite surface processing technology to make high-grade artificial leather that resembles natural leather. Microfiber synthetic leather is comparable to high-grade natural leather in terms of internal microstructure, appearance texture and physical properties. It is superior to natural leather in terms of durability, quality uniformity, shape retention, adaptability to automatic cutting and processing, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/61C08G18/48C08G18/44C08G18/42C08G18/32C08G18/12
CPCC08G18/12C08G18/4238C08G18/44C08G18/4854C08G18/61C08G18/7671C08G18/48C08G18/3206C08G18/3215C08G18/6674
Inventor 钱建中钱洪祥胡大勇钱迪范汉清仇菊平
Owner 福建汇得新材料有限公司
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