Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Zirconium tanning agent/graphene oxide nanocomposite tanning agent and preparation method thereof

A compound tanning agent, graphene technology, applied in the chemical treatment of small raw hides/large raw hides/leather hides/furs, small raw hides/large raw hides/leather/fur treatments, tanning treatments, etc. Tanning agent does not have a lot of problems such as leather tanning and zirconium tanning leather board, so as to achieve the effect of improving alkali resistance, reducing hydrolysis complexation and increasing penetration ability

Active Publication Date: 2017-10-20
安徽翰邦科技咨询有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: Zirconium tanned leather is relatively hard and has strong water absorption
Therefore, at present, zirconium tanning agents have not been widely used in leather tanning

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1: Preparation of graphene oxide nanosheet suspension

[0027] The graphene oxide nanosheet suspension is prepared by the following method: 8 parts of concentrated phosphoric acid and 60 parts of concentrated sulfuric acid are successively added to a three-necked flask and stirred at 0°C for half an hour, then 2 parts of powdered graphite and 10 parts of A mixture of potassium permanganate was added to a three-necked flask in portions within 1 hour, and after stirring at 0°C for 3 hours at a constant temperature, the solution turned dark green. Raise the temperature to 50°C, and after 5 hours of reaction, the When the temperature is raised to 80°C, add 150 parts of deionized water and continue to react for 30 minutes. After cooling down to 25°C, slowly add 8 parts of hydrogen peroxide with a mass fraction of 30% for 30 minutes. After the solution turns golden yellow Continue to react for 30 minutes to obtain graphene oxide product. Then the product was centrifuged...

Embodiment 2

[0038] Step 1: Preparation of graphene oxide nanosheet suspension

[0039] The graphene oxide nanosheet suspension is prepared by the following method: 10 parts of concentrated phosphoric acid and 90 parts of concentrated sulfuric acid are successively added to a three-necked flask, stirred and reacted for half an hour at 0~5°C, and then 3 parts of powdered graphite Add the mixture of potassium permanganate and 15 parts of potassium permanganate to the three-necked flask in portions within 1 hour, and react at a constant temperature at 5°C for 3 hours, the solution turns dark green, raise the temperature to 50°C, and react for 5 hours , raise the temperature to 80°C, add 200 parts of deionized water, and continue the reaction for 30 minutes. After cooling down to 25°C, slowly add 14 parts of hydrogen peroxide with a mass fraction of 30% for 30 minutes, until the solution turns into gold After turning yellow, the reaction was continued for 30 minutes to obtain a graphene oxide ...

Embodiment 3

[0050] Step 1: Preparation of graphene oxide nanosheet suspension

[0051] The graphene oxide nanosheet suspension was prepared by the following method: 9 parts of concentrated phosphoric acid and 75 parts of concentrated sulfuric acid were successively added to a three-necked flask and stirred at 3°C ​​for half an hour, then 2.5 parts of powdered graphite and 13 A mixture of potassium permanganate was added to a three-necked flask in portions within 1 hour, and after stirring at 3°C ​​for 3 hours at a constant temperature, the solution turned dark green. Raise the temperature to 50°C, and after 5 hours of reaction, When the temperature is raised to 80°C, add 180 parts of deionized water and continue to react for 30 minutes. After cooling down to 25°C, slowly add 11 parts of hydrogen peroxide with a mass fraction of 30% for 30 minutes. After the solution turns golden yellow Continue to react for 30 minutes to obtain graphene oxide product. Then the product is centrifuged 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

PropertyMeasurementUnit
sizeaaaaaaaaaa
temperatureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a zirconium tanning agent / oxidized graphene nano-composite tanning agent. The zirconium tanning agent / oxidized graphene nano-composite tanning agent is prepared by the following materials in parts by mass: 30-40 parts of zirconium sulfate, 40-50 parts of oxidized graphene nano-lamella suspension, 10-20 parts of dispersing agents and 60-70 parts of de-ionized water. The invention further discloses a preparation method of the zirconium tanning agent / oxidized graphene nano-composite tanning agent. The tanning agent can serve as the tanning agent; and when the solid dosage of the zirconium tanning agent / oxidized graphene nano-composite tanning agent is 5% of the leather weight, the shrinkage temperature of tanned leathers reaches 111 DEG C, the absorptivity of the zirconium tanning agent reaches 96%, the alkene yield of oxidized graphene reaches 99%, and the tanned leathers are excellent in softness, elasticity and fullness.

Description

technical field [0001] The invention belongs to the technical field of preparation of leather tanning agents, and in particular relates to a zirconium tanning agent / graphene oxide nanomaterial composite tanning agent and a preparation method thereof. Background technique [0002] At present, the research and development of chrome-free tanning agents have become the focus of research. The reason is that chrome tanning agents have good tanning effects, but there are problems such as low absorption rate, difficult treatment of chromium-containing pollutants produced, and serious environmental pollution. Defects (E Tao, Yang Shuyi, Ma Hongrui, et al., Research on the Effect of Citric Acid on the Precipitation of Trivalent Chromium in Tannery Wastewater, China Leather, 2015,, 4(15): 21-24). Other metal tanning agents such as aluminum tanning agents, iron tanning agents, titanium tanning agents and zirconium tanning agents have become the subject of research again due to their ext...

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): C14C3/04
CPCC14C3/04
Inventor 吕生华罗潇倩
Owner 安徽翰邦科技咨询有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com