Simulated leather texture polyurethane leather for automobile and preparation method of simulated leather texture polyurethane leather

A technology of polyurethane leather and imitation leather, which is applied to chemical instruments and methods, vehicle parts, pre-treated surfaces, etc. It can solve the problems of low VOC and environmental protection, poor aging resistance, heavy odor, etc., and improve the bonding firmness , Improve mechanical properties, clear surface texture

Pending Publication Date: 2019-03-29
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary PVC artificial leather has defects such as hard hand feeling, poor comfort, poor aging resistance, heavy odor, and easy migration and precipitation of plasticizers. Therefore, ordinary PVC artificial leather in automotive interiors has gradually been replaced by polyurethane (PU) synthetic leather. replaced by
However, the existing polyurethane synthetic leather production process is relatively complicated, and there are deficiencies in wear resistance, softness, and environmental protection.
[0004] This field needs to develop a kind of polyurethane leather, and its performance can be comparable with PU polyurethane, but has low VOC and environmental protection property

Method used

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  • Simulated leather texture polyurethane leather for automobile and preparation method of simulated leather texture polyurethane leather
  • Simulated leather texture polyurethane leather for automobile and preparation method of simulated leather texture polyurethane leather
  • Simulated leather texture polyurethane leather for automobile and preparation method of simulated leather texture polyurethane leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] A kind of artificial leather texture polyurethane leather for automobiles, comprising successively laminated 1.5mm thick base cloth layer superfine fiber non-woven fabrics (weight per unit area is 200g / m 2 ), a 0.05mm thick TPU hot melt adhesive layer, a composite layer consisting of a 0.05mm thick TPU film layer and a 0.05mm thick PU layer.

[0067] The preparation raw material of described TPU hot-melt adhesive layer comprises following raw material component by weight part:

[0068]

[0069] The preparation method of the polyester polyol is as follows: mix 1 mol of sebacic acid, 2.5 mol of terephthalic acid and 4.0 mol of ethylene glycol, then add 0.003 mol of isopropyl zirconate, heat up to 160°C for polycondensation reaction to obtain decane Diacid polyester polyol (weight average molecular weight 1500);

[0070] The flame retardant comprises by weight percentage: 30wt% dimethyl phosphite, 35wt% ammonium polyphosphate, 35wt% pentaerythritol;

[0071] The prepa...

Embodiment 2

[0081] A kind of artificial leather texture polyurethane leather for automobiles, comprising successively stacked 3.0mm thick base cloth layer superfine fiber non-woven fabrics (weight per unit area is 400g / m 2 ), a 0.1mm thick TPU hot melt adhesive layer, a composite layer consisting of a 0.1mm thick TPU film layer and a 0.1mm thick PU layer.

[0082] The preparation raw material of described TPU hot-melt adhesive layer comprises following raw material component by weight part:

[0083]

[0084]The preparation method of the polyester polyol is as follows: mix 1 mol of sebacic acid, 2.5 mol of terephthalic acid and 4.0 mol of ethylene glycol, then add 0.003 mol of isopropyl zirconate, heat up to 200°C for polycondensation reaction to obtain decane Diacid polyester polyol (weight average molecular weight 2000);

[0085] The flame retardant comprises by weight percentage: 20wt% dimethyl phosphite, 40wt% ammonium polyphosphate, 40wt% pentaerythritol;

[0086] The preparation...

Embodiment 3

[0096] A kind of artificial leather texture polyurethane leather for automobiles, comprising successively laminated 0.1mm thick base cloth layer superfine fiber non-woven fabrics (weight per unit area is 200g / m 2 ), a 0.01mm thick TPU hot melt adhesive layer, a composite layer consisting of a 0.05mm thick TPU film layer and a 0.05mm thick PU layer.

[0097] The preparation raw material of described TPU hot-melt adhesive layer comprises following raw material component by weight part:

[0098]

[0099] The preparation method of the polyester polyol is as follows: mix 1 mol of sebacic acid, 2.5 mol of terephthalic acid and 4.0 mol of ethylene glycol, then add 0.003 mol of isopropyl zirconate, heat up to 160°C for polycondensation reaction to obtain decane Diacid polyester polyol (weight average molecular weight 1500);

[0100] The flame retardant comprises by weight percentage: 25wt% dimethyl phosphite, 35wt% ammonium polyphosphate, 35wt% pentaerythritol;

[0101] The prepa...

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Abstract

The invention relates to simulated leather texture polyurethane leather for an automobile. The simulated leather texture polyurethane leather is characterized by comprising a base cloth layer, a hot melt adhesive layer and a skin layer which are successively laminated; and the hot melt adhesive layer comprises a TPU hot melt adhesive layer or an EVA hot melt adhesive layer. According to the simulated leather texture polyurethane leather for the automobile, since a new TPU hot melt adhesive film is adopted, the bonding strength of the simulated leather texture polyurethane leather is greatly improved, and the maximum bonding strength can be 8.0 kg/25 mm; by using a specific PU film, the specific TPU film and specific base cloth, comprehensive physical performance of the prepared polyurethane leather is excellent, the hand feeling of molded products is greasy and smooth, the leather texture is clear, the hand feeling of the leather is not less than that of genuine leather, and the simulated leather texture polyurethane leather can completely replace PVC artificial leather and the genuine leather; and meanwhile, antibacterial agent compositions are added, and the simulated leather texture polyurethane leather has certain antibacterial effect.

Description

technical field [0001] The invention belongs to the field of artificial leather manufacture, and in particular relates to a low-odor polyurethane leather and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the demand for leather products is increasing, and the grade is getting higher and higher. Automotive interior leather has been widely used in interior parts of passenger cars and transport vehicles. The best choice for automotive interior leather is genuine leather, but the production process of genuine leather seriously pollutes the environment, and the content of heavy metals tends to exceed the standard. It is accepted by cars; and people are paying more and more attention to environmental protection. Today, when environmental protection, energy saving and sustainable development are advocated, people have also begun to develop imitation leather fabrics to replace animal leather, so as to avoid harm to wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/04B05D7/24B05D3/04B32B27/18B32B27/12B32B7/08B32B7/12B32B33/00B32B37/10B32B37/12
CPCB05D3/0413B05D7/04B05D7/24B05D2503/00B32B7/08B32B7/12B32B27/12B32B27/18B32B27/40B32B33/00B32B37/10B32B37/12B32B2037/1269B32B2307/306B32B2307/554B32B2307/7145B32B2307/724B32B2605/003
Inventor 王一良何建雄
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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