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

Method for preparing Nano composite material of polyester in use for fibers in deep dyed color

A technology of polyester nano and composite materials, which is applied in dyeing, textiles and papermaking, etc. It can solve the problems of low physical properties, high shrinkage, and reduced crystallinity of copolymer fibers, and achieve the effect of improving dye uptake

Inactive Publication Date: 2006-04-19
SHANGHAI JIAO TONG UNIV
View PDF1 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method will cause the crystallinity of the copolymer fiber to be greatly reduced, so that the production of the copolymer fiber is difficult, the shrinkage rate is high, and the physical properties are lower than those of conventional polyester.

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

[0019] Add 95% ethanol to a 2000mL beaker, add 10 grams of polyvinylpyrrolidone under stirring, heat to 70°C, and after the polyvinylpyrrolidone is completely dissolved, pour 100 grams of nano-silica hydrosol into the above ethanol solution, and at 70 After stirring and reacting at ℃ for 1 hour, the mixture was filtered, washed, placed in a 100 ℃ oven for activation for 1 hour, and dried for use.

[0020] The above-mentioned organically modified nano-silica is dispersed in ethylene glycol to prepare a slurry with a concentration of 20%. First, disperse it in a high-speed disperser, and then grind it in a circulating sand mill. The slurry is tested with a laser particle size analyzer. When the average particle size of the nano-silica in the slurry is less than 100 nanometers, the grinding is stopped, and the slurry is discharged for use.

[0021] 8000 grams of terephthalic acid, 4000 grams of ethylene glycol, and 48 grams of the above-mentioned nano-silica slurry were beaten to...

Embodiment 2

[0024] The difference from the method described in Example 1 is that a silane coupling agent is used for the surface modification of the nano-silica, and the amount of the silane coupling agent is 15% of the amount of the nano-silica.

[0025] Disperse the above-mentioned organically modified nano-silicon dioxide powder in ethylene glycol to prepare a slurry with a concentration of 20%, first disperse it in a high-speed disperser, and then grind it in a circulating sand mill. The grinding process Use a laser particle size analyzer to test the particle size of the slurry. When the average particle size of nano-silica in the slurry is less than 100 nanometers, stop grinding and discharge the slurry for use.

[0026] 8000 grams of terephthalic acid, 4000 grams of ethylene glycol and 48 grams of the above-mentioned nano-silica slurry were beaten together and added to a 30-liter polyester polymerization kettle. Antimony trioxide was used as a polycondensation catalyst, and trimethyl...

Embodiment 3

[0029] The difference from the methods described in Examples 1 and 2 is that the surface of the nano-silica is not dried and activated after organic modification, and the average particle size is always kept below 20 nanometers. First, the silane coupling agent was dissolved in water, stirred well, and then added to 500 grams of 20% silica hydrosol. The amount of the silane coupling agent is 10% of the mass of the nano-silica. After sufficient reaction, the above-mentioned organically modified nano-silica was dispersed in 400 grams of ethylene glycol. The nano-silica / ethylene glycol / water solution is removed by a distillation device to remove a large amount of water, and then the solution is put into the liquid storage tank, and dropped into the pure ethylene glycol solution at 150 ℃ at a speed of 40ml / min. After sufficient dehydration reaction, a ethylene glycol solution containing 20% ​​nano-silica is prepared.

[0030] After 8000 grams of terephthalic acid, 4000 grams of ...

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 diameteraaaaaaaaaa
melting pointaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The present invention belongs to the field of nano material technology, and relates to a preparation method of polyester nano composite material for deep-dyeing fibre. It adopts nano silicon dioxide as additive modifying agent, and adopts the following steps: firstly, making it undergo the process of organic surface modification treatment, and making it be uniformly dispersed in one of polyester polymer monomer-ethylene glycol, adding the prepared nano silicon dioxide / ethylene glycol dispersing solution into reaction vessel in the process of esterification, and making them implement polymerization with polyester another monomer to obtain a polyester nano composite material, then making the polyester nano composite material undergo the process of high-temp, melt spinning treatment so as to obtain the invented polyester nano composite fibre.

Description

technical field [0001] The invention relates to a preparation method in the field of textile technology, in particular to a preparation method of a polyester nanocomposite material which can be used for deep dyeing fibers. Background technique [0002] Polyester has excellent physical properties and good resistance to chemicals or the environment, and is widely used in other non-fiber fields such as clothing fibers, industrial fibers, and membranes. Polyester fibers are difficult to dye due to the tight aggregation of macromolecular chains, high crystallinity and orientation, low polarity, lack of hydrophilic groups and no dyeing sites. Generally, disperse dyes can be dyed under high temperature and high pressure or under the condition of carrier, with few chromatograms and not bright enough color. In addition, high temperature and high pressure dyeing cannot be continuously industrially produced, and the carrier has certain toxicity, which is easy to cause environmental po...

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): D06P1/52
Inventor 杨永喆古宏晨
Owner SHANGHAI JIAO TONG UNIV
Features
  • Generate Ideas
  • 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