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

High-strength hydrophobic non-woven fabric and preparation method thereof

A hydrophobic, non-woven fabric technology, applied in the field of non-woven fabrics, can solve the problems of poor durability of hydrophobic fabrics, easy to fall off, affect the hydrophobicity of fabrics, etc., achieve good durability and improve strength

Active Publication Date: 2020-08-21
MEIWA PLASTIC SHANGHAI
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the durability of the hydrophobic fabric obtained by this method is poor, and the combination of nanoparticles and fabric is poor, and it is easy to fall off and affect the hydrophobicity of the fabric.

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
  • High-strength hydrophobic non-woven fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A kind of non-woven fabric is prepared by the following method:

[0043] (1) prepare tris-methyl acrylate-dipentaerythritol copolymer, concrete process is as follows:

[0044] (1.1) Addition reaction: Add 5.2g of trishydroxymethylaminomethane into 10mL of 50% methanol aqueous solution (50% methanol aqueous solution means the volume fraction of methanol is 50%), heat up to 30°C, stir and dissolve; dropwise add 5.2g A mixed solution of methyl acrylate and 10 mL of methanol was reacted at 30°C for 2 hours; after the reaction was completed, methanol, water and excess methyl acrylate were removed by vacuum to obtain the addition reaction product;

[0045] (1.2) Transesterification reaction: Add 1.3g of dipentaerythritol into 10mL of dimethyl sulfoxide, heat up to 90°C, stir to dissolve; add dropwise the addition reaction product obtained in step (1.1), heat up to 125°C, and react for 2h , and then reacted at 100°C and 0.08MPa for 2h; after the reaction was completed, dimeth...

Embodiment 2

[0055] A kind of non-woven fabric is prepared by the following method:

[0056] (1) prepare tris-methyl acrylate-dipentaerythritol copolymer, concrete process is as follows:

[0057] (1.1) Addition reaction: add 6.5g of trishydroxymethylaminomethane into 10mL of 50% aqueous methanol solution (50% aqueous methanol solution means the volume fraction of methanol is 50%), heat up to 33°C, stir and dissolve; add 7.8g of A mixed solution of methyl acrylate and 12 mL of methanol was reacted at 33°C for 2.5 hours; after the reaction was completed, methanol, water and excess methyl acrylate were removed by vacuum to obtain the addition reaction product;

[0058] (1.2) Transesterification reaction: Add 1.7g of dipentaerythritol into 10mL of dimethyl sulfoxide, heat up to 95°C, stir to dissolve; add dropwise the addition reaction product obtained in step (1.1), heat up to 127°C, and react 2.5 h, and then reacted at 105°C and 0.06MPa for 2h; after the reaction was completed, dimethyl sul...

Embodiment 3

[0068] A kind of non-woven fabric is prepared by the following method:

[0069] (1) prepare tris-methyl acrylate-dipentaerythritol copolymer, concrete process is as follows:

[0070] (1.1) Addition reaction: Add 7.2g of trishydroxymethylaminomethane into 15mL of 50% aqueous methanol solution (50% aqueous methanol solution means the volume fraction of methanol is 50%), heat up to 35°C, stir and dissolve; add 10.8g of A mixed solution of methyl acrylate and 15 mL of methanol was reacted at 35°C for 3 hours; after the reaction was completed, methanol, water and excess methyl acrylate were removed by vacuum to obtain an addition reaction product;

[0071] (1.2) Transesterification reaction: Add 2 g of dipentaerythritol into 10 mL of dimethyl sulfoxide, heat up to 100° C., stir to dissolve; add dropwise the addition reaction product obtained in step (1.1), heat up to 130° C., and react for 3 hours. Then react at 110°C and 0.05MPa for 2.5 hours; after the reaction is completed, dim...

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 technical field of non-woven fabrics, and discloses a high-strength hydrophobic non-woven fabric and a preparation method thereof. The non-woven fabric comprises the following raw materials in parts by weight: 100 parts of cellulose fibers, 5-10 parts of a trimethylol aminomethane-methyl acrylate-dipentaerythritol copolymer, 30 to 35 parts of 1,6-bi(acryloyloxy)-2,2,3,3,4,4,5,5-octafluorohexane, 2-2. 5 parts of pentaerythritol tetraacrylate. The high-strength hydrophobic non-woven fabric disclosed by the invention is internally added with the trimethylol aminomethane-methyl acrylate-dipentaerythritol copolymer so that the strength of the non-woven fabric is enhanced; and the surface of the non-woven fabric is grafted with the 1,6-bi(acryloyloxy)-2,2,3,3,4,4,5,5-octafluorohexane and the pentaerythritol tetraacrylate so that the strength and the hydrophobicity of the non-woven fabric are improved.

Description

technical field [0001] The invention relates to the technical field of nonwoven fabrics, in particular to a high-strength hydrophobic nonwoven fabric and a preparation method thereof. Background technique [0002] Non-woven fabrics, also known as non-woven fabrics, are thin sheets, webs or mats made of oriented or randomly arranged fibers combined with each other through friction, cohesion or bonding, or a combination of these methods. Due to the wide range of raw materials, short production process and low cost, non-woven fabrics are widely used in the fields of civil textiles and industrial textiles. Among various raw materials for the production of non-woven fabrics, cellulose fibers have a series of characteristics that synthetic fibers cannot possess, such as easy finishing and biodegradability. Supplies and other industrial fields have unique uses. However, due to the high water absorption of cellulose, cellulose-based non-woven fabrics cannot be used in occasions th...

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): D06M14/22D06M15/37D04H1/425D04H1/492D06M101/06
CPCD06M14/22D06M15/37D04H1/425D04H1/492D06M2200/12D06M2101/06Y02P70/62
Inventor 廖国庆
Owner MEIWA PLASTIC SHANGHAI
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