SU293070A1 - METHOD OF OBTAINING BIKOL \ PONENT! X FIBERS - Google Patents
METHOD OF OBTAINING BIKOL \ PONENT! X FIBERSInfo
- Publication number
- SU293070A1 SU293070A1 SU1343216A SU1343216A SU293070A1 SU 293070 A1 SU293070 A1 SU 293070A1 SU 1343216 A SU1343216 A SU 1343216A SU 1343216 A SU1343216 A SU 1343216A SU 293070 A1 SU293070 A1 SU 293070A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fibers
- bikol
- ponent
- obtaining
- polyamide
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title description 7
- 239000000203 mixture Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 229920005575 poly(amic acid) Polymers 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000011528 polyamide (building material) Substances 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
- 239000004962 Polyamide-imide Substances 0.000 description 2
- 229920001721 Polyimide Polymers 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 2
- 229920002312 polyamide-imide Polymers 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012210 heat-resistant fiber Substances 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- CYIDZMCFTVVTJO-UHFFFAOYSA-N pyromellitic acid Chemical compound OC(=O)C1=CC(C(O)=O)=C(C(O)=O)C=C1C(O)=O CYIDZMCFTVVTJO-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000000930 thermomechanical Effects 0.000 description 1
Description
Изобретение относитс к способу получени волокон на основе полиамидов.This invention relates to a process for producing polyamide based fibers.
Известен способ получени волокна на ос}юве ароматического полисульфонамида методом мокрого формовани .A known method of producing fiber on the basis of an aromatic polysulfonamide by the method of wet forming.
С целью получени волокиа с высокими термомехаиическими и эластическими свойствами предложено в ароматический полисульфонамид вводить полиимидный компонент- полиамидокислоту общей формулыIn order to obtain volokia with high thermomechanical and elastic properties, it was proposed to introduce a polyamide component, polyamic acid of the general formula, into aromatic polysulfonamide
NK-CO-f COOHNK-CO-f COOH
Hoocvico JHoocvico j
где X-О, S, СО.where X-O, S, CO.
Свежесформоваиное волокно подвергают термообработке при 400-500°С в вакууме и обрабатывают в 5%-ном растворе пиридина в уксусном ангидриде.Freshly formed fiber is subjected to heat treatment at 400-500 ° C in vacuum and treated in 5% solution of pyridine in acetic anhydride.
Предлагаемый способ получени термостойких волокон основан на сочетании лучших свойств полиамидиых и полиимидиых волокон путем использовани в качестве исходных пр дильных растворов кинетически устойчивых смесей ароматических полиамидов и полиамидокислот , вз тых в определенных соотношепи х , вес. %: полиамидиый компонент 0,5; 5; 10; 75; 90; 95; 99,5 и полиамидокислота 99,5; 95; 90; 25; 10; 5; 0,5.The proposed method for producing heat-resistant fibers is based on a combination of the best properties of polyamide and polyimide fibers by using kinetically stable mixtures of aromatic polyamides and polyamic acids, taken in specific proportions, in weight, as starting materials. %: polyamide component 0.5; five; ten; 75; 90; 95; 99.5 and polyamic acid 99.5; 95; 90; 25; ten; five; 0.5
Смесь полимеров получают путем физического перемешиваии в зких растворов (кинематическа в зкость 500-2000 пз) отдельных ко.мнонеитов в органических растворител х а: 1идного типа.A mixture of polymers is obtained by physically mixing viscous solutions (kinematic viscosity 500–2000 pz) of individual comunite in organic solvents a: of one type.
Преимуществом нолученных волокон вл етс возможность более широкого варьировани их эласт ческих свойств, выраженных показателем удлинени 11,7-27% в сравнении с 3-8% У иолиимидов и 15-20% у полиамидов , а также более высоким показателем устойчивости к двойпым изгибам- 3500 пиклов в срагзнении.с 2300-2500 у полиа: идов .The advantage of the fibers obtained is the possibility of a wider variation in their elastic properties, expressed as an elongation rate of 11.7-27% compared with 3-8% for iolimides and 15-20% for polyamides, as well as a higher double-bend resistance index. 3500 picks in the clash. From 2300-2500 in poly: idov.
Волокна в отличие от полиамидных и полиимидиых имеют окраску от белой до ркожелтой .Fibers, in contrast to polyamide and polyimide, are white to yellow.
Пример 1. 90 ч. i2,8%-Horo раствора полидифснилсульфонтерефталамнда с кинематической в зкостью 2000 пз из 10 ч. 12,8-ного раствора ароматической полиамидокислоты на осиове диангидр1ща пиромеллитовой кислоты и диаминодифенилоксида с кинематической в зкостью 500 /13 перемешивают в течение 1 час при темиературе 10°С. Смесь обезвоздуишвают иод вакуумом (1-2 мм рт. ст.) при температуре 15°С в течение 1 час. После этого смесь растворов с кииематической в зкостью 1585 из формуют в 40%-ньп1 раствор диметилформамида при температуре 20°С сотExample 1. 90 parts of a 2.8% -Horo polydiffsylsulfontereftalamnd solution with a kinematic viscosity of 2000 pz out of 10 parts of a 12.8% solution of an aromatic polyamic acid on the axis of dianhydrate pyromellitic acid and diaminodiphenyloxide with a kinematic viscosity of 500/13 are mixed for 1 hour at 10 ° C. The mixture is dehydrated with iodine vacuum (1-2 mm of mercury.) At a temperature of 15 ° C for 1 hour. After that, a mixture of solutions with a kiematic viscosity of 1585 is molded into 40% dimethylformamide solution at a temperature of 20 ° C
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU293070A1 true SU293070A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2219703A1 (en) * | 1971-04-28 | 1972-11-09 | E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) | Polyamide fibers and films and processes for making the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2219703A1 (en) * | 1971-04-28 | 1972-11-09 | E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) | Polyamide fibers and films and processes for making the same |
| DE2265806C3 (en) * | 1971-04-28 | 1991-03-07 | E.I. Du Pont De Nemours & Co., Wilmington, Del., Us |
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