A kind of low color difference polyester dty bright yarn and preparation method thereof
A bright yarn and polyester technology, applied in the direction of single-component polyester artificial filament, melt spinning, filament/thread forming, etc., can solve the problems of color flower, hindering liquid flow circulation, not easy to wash off, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0074] A preparation method of polyester DTY bright yarn with low color difference, the main process comprises:
[0075] (1) Preparation of catalyst magnesium ethylene glycol:
[0076] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 6V, the cathode current density is 150mA, and electrolyze for 10 hours at 50°C. Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;
[0077] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:
[0078] Esterification reaction:
[0079] Use terephthalic acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is 1.2:1, add anti-ether agent sodium acetate, the amount o...
Embodiment 2
[0101] A preparation method of polyester DTY bright yarn with low color difference, the main process comprises:
[0102] (1) Preparation of catalyst magnesium ethylene glycol:
[0103] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 10V, the cathode current density is 200mA, electrolyze at 60°C for 12 hours, after the electrolysis ends Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;
[0104] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:
[0105] Esterification reaction:
[0106] Using terephthalic acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is 2.0:1, adding anti-ether agen...
Embodiment 3
[0128] A preparation method of polyester DTY bright yarn with low color difference, the main process comprises:
[0129] (1) Preparation of catalyst magnesium ethylene glycol:
[0130] Add ethylene glycol into the single-chamber electrolytic cell, the supporting electrolyte is magnesium chloride, the metal magnesium block is the anode, and the cathode is graphite; connect direct current, the initial voltage is 7V, the cathode current density is 160mA, and electrolyze for 11 hours at 55°C. Take out the electrode to obtain a white suspension; filter under reduced pressure, wash the white solid with absolute ethanol, and dry to obtain magnesium ethylene glycol;
[0131] (2) Preparation of polyester, including esterification reaction and polycondensation reaction:
[0132] Esterification reaction:
[0133] Using terephthalic acid and ethylene glycol as raw materials, the molar ratio of ethylene glycol to terephthalic acid is 1.5:1, adding anti-ether agent sodium acetate, the amo...
PUM
Property | Measurement | Unit |
---|---|---|
elongation at break | aaaaa | aaaaa |
elongation at break | aaaaa | aaaaa |
shrinkage | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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