Title:
PREPARATION METHOD FOR BIO-BASED NYLON 5X FIBER MATERIAL
Document Type and Number:
WIPO Patent Application WO/2022/048662
Kind Code:
A1
Abstract:
Disclosed is a preparation method for a bio-based nylon 5X fiber material. The method comprises the following steps: 1) mixing a 1,5-pentanediamine mixed fermentation liquid and a dibasic acid for a polymerization reaction, obtaining a nylon salt mixed liquid, and processing same to obtain a nylon salt, the 1,5-pentanediamine mixed fermentation liquid being a mixed fermentation liquid obtained by means of the biological preparation of 1,5-pentanediamine; 2) performing a polymerization reaction on an aqueous solution of the nylon salt and a molecular weight regulating agent, and obtaining a nylon 5X polymer; and 3) by means of a spinneret, spraying a melt of the nylon 5X polymer to obtain a thin stream of the melt, the thin stream of melt is then cooled and solidified into filaments, and the solidified filaments are subjected to a fiber post-processing process to obtain a bio-based nylon 5X fiber material. The present invention can directly obtain nylon salt by means of adding a dibasic acid to a 1,5-pentanediamine mixed fermentation liquid, can increase the conversion rate, reduce energy consumption, and prevent environmental pollution. The nylon salt mixed liquid is purified to obtain a nylon salt crystal for subsequent reaction, thereby preventing side reactions.
Inventors:
HAO XINMIN (CN)
GUO YAFEI (CN)
LIANG GAOYONG (CN)
YAN JINLONG (CN)
QIAO RONGRONG (CN)
GUO YAFEI (CN)
LIANG GAOYONG (CN)
YAN JINLONG (CN)
QIAO RONGRONG (CN)
Application Number:
PCT/CN2021/116657
Publication Date:
March 10, 2022
Filing Date:
September 06, 2021
Export Citation:
Assignee:
INSTITUTE OF QUARTERMASTER ENGINEERING & TECH SYSTEMS ENGINEERING INSTITUTE ACADEMY OF MILITARY SCIE (CN)
International Classes:
D01F6/60; C07C51/41; C07C51/43; C07C55/14; C07C209/00; C07C209/84; C07C211/09; C08G69/26; D01F1/07; D01F6/90
Foreign References:
| CN112111803A | 2020-12-22 | |||
| CN111171312A | 2020-05-19 | |||
| CN108129329A | 2018-06-08 | |||
| CN106835329A | 2017-06-13 | |||
| CN111321481A | 2020-06-23 | |||
| CN105887230A | 2016-08-24 | |||
| CN106637471A | 2017-05-10 | |||
| CN106868623A | 2017-06-20 | |||
| JP2011162907A | 2011-08-25 |
Attorney, Agent or Firm:
JEEKAI&PARTNERS (CN)
Download PDF:
Previous Patent: NEAR-TO-EYE DISPLAY DEVICE
Next Patent: METHOD FOR PREPARING FUNCTIONALIZED POLYAMIDE 56 SHORT FIBERS
Next Patent: METHOD FOR PREPARING FUNCTIONALIZED POLYAMIDE 56 SHORT FIBERS