Functional composite fiber with controllable crimpness and preparation method of functional composite fiber
A composite fiber, functional technology, used in fiber processing, filament/thread forming, conjugated synthetic polymer rayon, etc., can solve the problems of easy generation of static electricity, poor antistatic performance, and peeling of side-by-side components. , to achieve the effect of improving dyeing performance, increasing esterification rate and easy enrichment
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0053] A method for preparing a composite fiber with controllable functional crimp, comprising the steps of:
[0054] (1) Stir and beat dibasic alcohol and dibasic acid in a high-speed mixer to make it fully blended to prepare a slurry, wherein the molar ratio of the hydroxyl functional group of ethylene glycol to the carboxyl functional group of terephthalic acid is 1.2:1 ;
[0055] (2) Preheat the reactor, add the slurry, catalyst (titanium glycolate), anhydrous sodium acetate and triphenyl phosphite into the reactor when the temperature of the reactor reaches 200°C, and fill the reactor with nitrogen to the pressure inside the reactor is 0.25MPa, slowly warming up to a temperature of 245°C, and carrying out a pressurized esterification reaction to obtain esterified product I; wherein, the addition amount of the catalyst is 100ppm of the total mass of terephthalic acid; the addition amount of anhydrous sodium acetate is terephthalic acid 0.018% of the total mass of diformic...
Embodiment 2
[0065] A method for preparing a composite fiber with controllable functional crimp, comprising the steps of:
[0066] (1) Stir and beat dibasic alcohol and dibasic acid in a high-speed mixer to make it fully blended to prepare a slurry, wherein the molar ratio of the hydroxyl functional group of ethylene glycol to the carboxyl functional group of terephthalic acid is 1.3:1 ;
[0067] (2) Preheat the reactor, add the slurry, catalyst (antimony trioxide), anhydrous sodium acetate and triphenyl phosphite into the reactor when the temperature of the reactor reaches 205°C, and fill the reactor with nitrogen to the pressure inside the reactor is 0.22MPa, slowly warming up to a temperature of 243°C, and carrying out a pressurized esterification reaction to obtain esterified product I; wherein, the addition amount of the catalyst is 500ppm of the total mass of terephthalic acid; the addition amount of anhydrous sodium acetate is terephthalic acid 0.002% of the total mass of dicarboxy...
Embodiment 3
[0077] A method for preparing a composite fiber with controllable functional crimp, comprising the steps of:
[0078] (1) Stir and beat dibasic alcohol and dibasic acid in a high-speed mixer to make a slurry by fully blending, wherein the molar ratio of the hydroxyl functional group of ethylene glycol to the carboxyl functional group of terephthalic acid is 1.4:1 ;
[0079] (2) Preheat the reactor, and when the temperature of the reactor reaches 222°C, add the slurry, catalyst (antimony acetate), anhydrous sodium acetate and triphenyl phosphite into the reactor, and fill the reactor with nitrogen until the pressure in the reactor is 0.15 MPa, slowly warming up to a temperature of 235°C, carrying out a pressurized esterification reaction to obtain esterified product I; wherein, the addition of the catalyst is 310ppm of the total mass of terephthalic acid; the addition of anhydrous sodium acetate is terephthalic acid 0.01% of the total mass; the addition of triphenyl phosphite ...
PUM
Property | Measurement | Unit |
---|---|---|
glass transition temperature | aaaaa | aaaaa |
glass transition temperature | aaaaa | aaaaa |
glass transition temperature | 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