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

Synthesizing and finishing method of environment-friendly fluoride-free hydrophobic coating liquid

A synthesis method and coating solution technology, applied in the direction of liquid-repelling fibers, fiber treatment, textiles and papermaking, etc., can solve problems such as difficult large-scale industrial production, easy fall-off of surface nanoparticles, and human health effects, etc., to achieve Good hydrophobicity and oil-water separation performance, wide applicability of raw materials, excellent wear resistance

Inactive Publication Date: 2017-09-05
SUZHOU RONGLYU NANO SCI & TECHOGY
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on such a superhydrophobic substrate, the surface nanoparticles are easy to fall off, which will have an impact on human health.
In addition, commonly used construction methods include hydrothermal method, electrospinning method, plasma etching method, and laser femtosecond etching method. However, these methods either require complex processes or expensive instruments, and are difficult to apply on a large scale. Industrial production

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
  • Synthesizing and finishing method of environment-friendly fluoride-free hydrophobic coating liquid
  • Synthesizing and finishing method of environment-friendly fluoride-free hydrophobic coating liquid
  • Synthesizing and finishing method of environment-friendly fluoride-free hydrophobic coating liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] This implementation case shows the synthesis and finishing method of an environmentally friendly fluorine-free hydrophobic coating solution to prepare a superhydrophobic substrate according to the following steps:

[0050] Step 1: Prepare hydrophobic coating liquid emulsion

[0051] Dissolve 1g of PDMS in 30ml of THF and magnetically stir for 30 minutes to make it evenly dispersed, then drop 70ml of water into the above solution under ultrasonic vibration and continue ultrasonic oscillation for 30 minutes to prepare a stable hydrophobic coating liquid emulsion.

[0052] Step 2: Preparation of superhydrophobic substrate by dipping method

[0053] Soak the cotton fabric in the above-mentioned hydrophobic coating liquid emulsion for 30 minutes, take it out and dry it in an oven to obtain a superhydrophobic cotton fabric.

[0054] For the morphology and structure of the superhydrophobic cotton fabric (superhydrophobic substrate) prepared in this example, please refer to ...

Embodiment 2

[0056] This implementation case demonstrates an environmentally friendly fluorine-free hydrophobic coating solution and a synthesis and finishing method to prepare a superhydrophobic substrate according to the following steps:

[0057] Step 1: Prepare hydrophobic coating liquid emulsion

[0058] Dissolve 1g of PDMS in 10ml of THF and magnetically stir for 30 minutes to make it evenly dispersed, then drop 90ml of water into the above solution under ultrasonic vibration and continue ultrasonic oscillation for 30 minutes to prepare a stable hydrophobic coating liquid emulsion;

[0059] Step 2: Preparation of superhydrophobic substrate by dipping method

[0060] Soak the cotton fabric in the above-mentioned hydrophobic coating liquid emulsion for 60 minutes, take it out and dry it in an oven to obtain a superhydrophobic cotton fabric.

[0061] For the morphology and structure of the superhydrophobic cotton fabric (superhydrophobic substrate) prepared in this example, please refer...

Embodiment 3

[0063] This implementation case shows the synthesis and finishing method of an environmentally friendly fluorine-free hydrophobic coating solution to prepare a superhydrophobic substrate according to the following steps:

[0064] Step 1: Prepare hydrophobic coating liquid emulsion

[0065] Dissolve 1g of PDMS in 30ml of THF and stir magnetically for 30 minutes to make it evenly dispersed, then drop 70ml of water into the above solution under ultrasonic vibration and continue ultrasonic oscillation for 30 minutes to prepare a stable hydrophobic coating liquid emulsion;

[0066] Step 2: Preparation of superhydrophobic substrate by dipping method

[0067] Soak the colored garment in the above-mentioned hydrophobic coating liquid emulsion for 30 minutes, take it out, and dry it in an oven to obtain a superhydrophobic colored fabric.

[0068] For the morphology and structure of the superhydrophobic substrate prepared in this example, please refer to Image 6 , Image 6 It is an ...

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 discloses a synthesizing and finishing method of an environment-friendly fluoride-free hydrophobic coating liquid. A stable hydrophobic coating liquid emulsion is prepared firstly; a transparent ultra-hydrophobic finishing effect can be realized on the surface of a substrate by a soaking method. The method has the advantages of simple process, low energy cost, low raw material cost and environmental friendliness, and is suitable for various material substrates; an obtained product has very high wear resistance, soaping resistance, and acid, salt and alkali resistance, and can be directly applied to large-scale industrial production and market popularization.

Description

technical field [0001] The invention relates to a synthesis and finishing method of an environment-friendly fluorine-free hydrophobic coating solution. Background technique [0002] Hydrophobic phenomenon, as a common wetting phenomenon, has long been paid attention to and studied by people. As early as 1805, Thomas Young proposed Young's equation about interfacial tension and wetting performance. The discovery of the lotus leaf effect in 1997 brought people's research on superhydrophobic surfaces into a new era. The so-called superhydrophobic surface refers to the surface where the contact angle between water droplets and the interface is greater than 150° and the rolling angle is less than 10°. At present, the preparation of superhydrophobic surfaces mainly goes through the following steps: (1) constructing micro-nano-scale rough structures on the surface (2) modifying low surface energy substances on the surface. Among them, how to construct the micro-nano rough structu...

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 Applications(China)
IPC IPC(8): D06M15/643D06M101/06
CPCD06M15/643D06M2101/06D06M2200/12
Inventor 赖跃坤高寿伟董秀丽李煜炜黄剑莹
Owner SUZHOU RONGLYU NANO SCI & TECHOGY
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