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

Fluorine containing water repellent oil repellent composition and its preparation method

A water and oil repellent composition technology, which is applied in the field of fluorine-containing water and oil repellent composition and its preparation, can solve the problems of insufficient waterproof performance and prohibition, reduce biological toxicity and permanent accumulation, and improve roughness , Improve the effect of waterproof performance

Inactive Publication Date: 2012-09-12
无锡市恒创嘉业纳米材料科技有限公司
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the bioaccumulation and certain biotoxicity of the perfluorinated chain segment containing eight carbon atoms, the release of relevant bioaccumulation and toxicity reports puts such products at risk of being banned
The development of short perfluoroalkyl carbon chain products has become a research hotspot. The current short perfluoroalkyl carbon chain products have obvious defects such as insufficient waterproof performance. Therefore, it is particularly urgent to improve the waterproof performance of short perfluoroalkyl carbon chain products.

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

[0025] Add the following components in a 500ml beaker: 60g of perfluorohexylethyl methacrylate, 60g of lauryl acrylate, 10g of hydrophilic fumed silica Aerosil 200 (A200) (particle size 10nm-1μm), N- 5 g of methylol acrylamide, 0.25 g of dodecyl mercaptan, 5 g of polyoxyethylene (20) base oil ether, 2 g of octadecyltrimethylammonium chloride, 40 g of propylene glycol, 400 g of deionized water, placed under high pressure Emulsify in a homogenizer for 20 minutes to obtain a stable oil-in-water emulsion. Add the emulsion into a glass reactor equipped with a stirrer, a thermometer and a reflux condenser, pass through nitrogen to remove oxygen, then add 0.5 g of initiator azobisisobutylamidine hydrochloride, and simultaneously raise the temperature of the water bath to 55 ° C, and react 5 Hour.

[0026] The water repellency properties are shown in Table 1.

Embodiment 2

[0028] Add the following components into a 500ml beaker: 60g of perfluorohexylethyl methacrylate, 30g of stearyl acrylate, 15g of hydrophilic fumed silica Aerosil 300 (A300) (particle size 10nm-1μm), methyl Glycidyl acrylate 9g, lauryl mercaptan 0.25g, lauryl polyoxyethylene (10) ether 5g, dodecyltrimethylammonium chloride 2g, dipropylene glycol 30g, deionized water 400g , placed in a high-pressure homogenizer for emulsification for 20 minutes to obtain a stable oil-in-water emulsion. Add the emulsion into a glass reactor equipped with a stirrer, a thermometer and a reflux condenser, pass through nitrogen to remove oxygen, then add 0.5 g of initiator azobisisobutylamidine hydrochloride, and simultaneously raise the temperature of the water bath to 55 ° C, and react 5 Hour.

[0029] The water repellency properties are shown in Table 1.

Embodiment 3

[0031] Add the following components into a 500ml beaker: 60g perfluorobutylethyl methacrylate, 30g lauryl methacrylate, precipitated silica, average particle size 50nm, 20g, γ-methacryloxy 15g of propyltrimethoxysilane, 8g of octadecyltrimethylammonium chloride, 25g of tripropylene glycol, and 400g of deionized water were emulsified in a high-pressure homogenizer for 20 minutes to obtain a stable oil-in-water type lotion. Add the emulsion into a glass reactor equipped with a stirrer, a thermometer and a reflux condenser, pass through nitrogen to remove oxygen, then add 0.5 g of initiator azobisisobutylamidine hydrochloride, and simultaneously raise the temperature of the water bath to 60 ° C, and react 4 Hour.

[0032] Waterproof performance and continuous performance are shown in Table 1.

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a fluorine containing water repellent oil repellent composition and its preparation method. The composition takes a monomer, inorganic silica, an emulsifier, a solvent and water as raw materials, after the emulsification of the raw materials, the composition is obtained by initiating the polymerization under the initiator existence condition. The composition reduces the biology toxicity and permanent accumulation performance, and can substantially enhance the waterproof performance of a fluorine containing fabric waterproof oilproof agent with perfluoro alkyl carbon chain length of less than or equal to 6.

Description

technical field [0001] The invention belongs to the technical field of fabric functional finishing, and relates to a fluorine-containing water and oil repellent composition and a preparation method thereof. When the water-based fluorine-containing resin emulsion is processed, the technology can significantly improve the waterproof performance of the existing fluorine-containing fabric waterproof and oil-repellent agent with a perfluoroalkyl carbon chain length less than or equal to 6. Background technique [0002] Fluorine-containing polymers have many excellent properties, such as excellent water and oil repellency. It is well known to use perfluoroalkylethyl (meth)acrylate copolymers in the design of water and oil repellent finishing agents. [0003] The perfluoroalkyl (meth)acrylate currently on the market is mainly a perfluoroalkyl segment containing eight carbons in the side chain (hereinafter referred to as C8) or a perfluoroalkyl mixture of C8 and other carbon chain ...

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
IPC IPC(8): D06M15/263D06M15/277D06M15/356D06M15/29D06M11/79C08F220/24C08F220/12C08F220/32C08F230/08C08F220/58C08F2/24
Inventor 邹玥
Owner 无锡市恒创嘉业纳米材料科技有限公司
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