Supercharge Your Innovation With Domain-Expert AI Agents!

A kind of preparation method of smooth artificial synthetic leather

A synthetic leather, smooth technology, applied in the field of synthetic leather, can solve the problems of high hardness, burr on the surface of synthetic leather, reduce the surface smoothness of polyurethane coating, etc., and achieve the effect of improving strength and wear resistance

Active Publication Date: 2020-09-15
安徽博朗凯德车用皮革科技有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that although graphene can significantly improve the strength of synthetic leather, graphene particles are irregular and have high hardness. After compounding with polyurethane, it will reduce the smoothness of the surface of polyurethane coating, which will cause burrs on the surface of synthetic leather and seriously affect the quality of leather. Therefore, the above-mentioned technical problems need to be solved urgently

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of preparation method of smooth artificial synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of smooth type artificial synthetic leather, comprising the following steps:

[0033] a) Add dibutyltin dilaurate to acetone, heat and stir evenly; then add graphene to acetone, the mass ratio of dibutyltin dilaurate and graphene is 1:4. Ultrasonic dispersion, standing for cooling, suction filtration under reduced pressure, and drying the precipitated solid to obtain graphene loaded with dibutyltin dilaurate.

[0034] Wherein, the graphene has been modified in advance: nano-titanium dioxide is impregnated in an acetone solution of γ-mercaptopropyltriethoxysilane, and the volume ratio of γ-mercaptopropyltriethoxysilane to the acetone solution is 1 :7. Rinse with ethanol, then take out and dry; then impregnate the nano-titanium dioxide in the carboxylated graphene oxide dispersion (weight concentration is 1.5%), the addition of nano-titanium dioxide is 1.5% of the quality of the carboxylated graphene oxide dispersion. Heating and stirring at 85° C.,...

Embodiment 2

[0041] A preparation method of smooth type artificial synthetic leather, comprising the following steps:

[0042] a) Add dibutyltin dilaurate to acetone, heat and stir evenly; then add graphene to acetone, the mass ratio of dibutyltin dilaurate and graphene is 1:3. Ultrasonic dispersion, standing for cooling, suction filtration under reduced pressure, and drying the precipitated solid to obtain graphene loaded with dibutyltin dilaurate.

[0043] Wherein, the graphene has been modified in advance: nano-titanium dioxide is impregnated in an acetone solution of γ-mercaptopropyltriethoxysilane, and the volume ratio of γ-mercaptopropyltriethoxysilane to the acetone solution is 1 :6. Rinse with ethanol, then take out and dry; then impregnate the nano-titanium dioxide in the carboxylated graphene oxide dispersion (weight concentration is 1%), the addition amount of nano-titanium dioxide is 1% of the quality of the carboxylated graphene oxide dispersion. Heating and stirring at 80° ...

Embodiment 3

[0050] A preparation method of smooth type artificial synthetic leather, comprising the following steps:

[0051] a) Add dibutyltin dilaurate to acetone, heat and stir evenly; then add graphene to acetone, the mass ratio of dibutyltin dilaurate and graphene is 1:5. Ultrasonic dispersion, standing for cooling, suction filtration under reduced pressure, and drying the precipitated solid to obtain graphene loaded with dibutyltin dilaurate.

[0052] Wherein, the graphene has been modified in advance: nano-titanium dioxide is impregnated in an acetone solution of γ-mercaptopropyltriethoxysilane, and the volume ratio of γ-mercaptopropyltriethoxysilane to the acetone solution is 1 :8. Rinse with ethanol, then take out and dry; then impregnate the nano-titanium dioxide in the carboxylated graphene oxide dispersion (weight concentration is 2%), the addition of nano-titanium dioxide is 2% of the quality of the carboxylated graphene oxide dispersion. Heating and stirring at 90° C., and...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of synthetic leathers, and provides a method for producing smooth artificial synthetic leather. The method comprises the following steps: 1, adding dibutyltin dilaurate to acetone, carrying out heating and uniform stirring, adding graphene to the acetone, carrying out ultrasonic dispersion, standing and cooling the obtained dispersion, carrying out reduced pressure suction filtration, and drying the obtained precipitated solid to obtain dibutyltin dilaurate supported graphene; 2, preparing an additive solution; 3, adding polyether polyol, a chain extender anddimethyl formamide into a reaction kettle, uniformly stirring the added substances, adding isocyanate, heating the reaction kettle to react the obtained mixture, cooling the obtained reaction product, adding the additive solution and a blocking agent, and continuously carrying out heating reacting to prepare polyurethane resin; 4, preparing wet base; 5, preparing a dry laminating face; and 6, producing the synthetic leather. The graphene is added to improve the strength, the wear resistance, the antistatic property and the ageing resistance of the synthetic leather and keep the original smoothness, no burr feeling and good hand feeling of the surface of a polyurethane coating.

Description

technical field [0001] The invention relates to the field of synthetic leather, in particular to a method for preparing smooth artificial synthetic leather. Background technique [0002] Natural leather is widely used in the production of daily necessities and industrial products due to its excellent natural characteristics. However, with the growth of the world population, the human demand for leather has doubled, and the limited amount of natural leather has long been unable to meet this demand. In order to solve this contradiction, scientists began to research and develop artificial leather and synthetic leather decades ago to make up for the deficiency of natural leather. [0003] The emergence of polyurethane (PU) synthetic leather is the third generation of artificial leather. The non-woven fabric of its three-dimensional structure network creates the conditions for synthetic leather to catch up with natural leather in terms of substrate. Combining the newly develope...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/00D06N3/14C08G18/32C08G18/48C08G18/66C08K3/04C08K7/00C08K9/04C08K9/06C08K9/12C09D5/24C09D175/08
CPCC08G18/3206C08G18/48C08G18/4854C08G18/6674C08K3/04C08K7/00C08K9/04C08K9/06C08K9/12C09D5/24C09D175/08D06N3/0063D06N3/14D06N2203/068D06N2209/046D06N2209/105D06N2209/1685
Inventor 卯志华
Owner 安徽博朗凯德车用皮革科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com