Title:
PREPARATION METHOD FOR HIGH-MODULUS, LOW-SHRINKAGE AND FLAME RETARDANT POLYESTER INDUSTRIAL FILAMENT
Document Type and Number:
WIPO Patent Application WO/2020/238688
Kind Code:
A1
Abstract:
The present invention relates to the technical field of high-molecular fiber production, and in particular, to a preparation method for a high-modulus, low-shrinkage and flame-retardant polyester industrial filament. In the present invention, a high-strength flame-retardant polyester industrial filament is finally obtained by selecting and mixing a specific material, a high-molecular phosphorus flame retardant and a high-viscosity PET slice, controlling important parameters such as the viscosity and the phosphorus content of the mixture, and then performing effective parameter control including temperature and winding speed in each spinning segment. The advantages of the present invention are that compared with industrial spinning oil in polyester production, the spinning oil used has good friction resistance and cohesion, can greatly reduce the production of broken filaments during stretching and post-weaving, has high strength and no halogen, is environmentally friendly, and has good flame retardance and less spinning broken filaments.
Inventors:
GE JUNMIN (CN)
GU FENG (CN)
GU FENG (CN)
Application Number:
PCT/CN2020/090921
Publication Date:
December 03, 2020
Filing Date:
May 18, 2020
Export Citation:
Assignee:
ZHEJIANG HAILIDE NEW MAT CO LTD (CN)
International Classes:
D01F6/92; D01D5/08; D01D5/096; D01D5/12; D01F1/07; D01F11/08; D02J1/08
Foreign References:
| CN110172750A | 2019-08-27 | |||
| CN110158189A | 2019-08-23 | |||
| CN102995155A | 2013-03-27 | |||
| CN102675618A | 2012-09-19 | |||
| CN104603176A | 2015-05-06 | |||
| CN102912640A | 2013-02-06 | |||
| CN101298703A | 2008-11-05 | |||
| CN109735942A | 2019-05-10 | |||
| CN105504241A | 2016-04-20 | |||
| CN102400342A | 2012-04-04 | |||
| JP2003129368A | 2003-05-08 |
Attorney, Agent or Firm:
ZHEJIANG INPRO LAW FIRM (CN)
Download PDF: