SU202430A1 - - Google Patents
Info
- Publication number
- SU202430A1 SU202430A1 SU892602A SU892602A SU202430A1 SU 202430 A1 SU202430 A1 SU 202430A1 SU 892602 A SU892602 A SU 892602A SU 892602 A SU892602 A SU 892602A SU 202430 A1 SU202430 A1 SU 202430A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- precipitation bath
- formic acid
- polymer
- octamethylenedibenzimidazole
- poly
- Prior art date
Links
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 14
- 229920000642 polymer Polymers 0.000 claims description 7
- 235000019253 formic acid Nutrition 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012209 synthetic fiber Substances 0.000 claims description 3
- 229920002994 synthetic fiber Polymers 0.000 claims description 3
- 239000012210 heat-resistant fiber Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 description 2
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(II) oxide Inorganic materials [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Description
СПОСОБ ПОЛУЧЕНИЯ СИНТЕТИЧЕСКОГО ВОЛОКНАMETHOD FOR OBTAINING SYNTHETIC FIBER
C-::. : .1;. . - Известен способ получени синтетического волокна фор1мовавием из раствора полимера в водную осадительную ванну. C - ::. : .one;. . - A known method of producing synthetic fiber by formavivi from a polymer solution in an aqueous precipitation bath.
С целью расширени ассортимента полимеров дл получени термостойких волокон, предлагаетс примен ть в качестве полимера поли-2,2-октаметилендибензимидазол, в качестве растворител последнего - муравьиную кислоту, а в качестве осадительной ванны - смесь муравьиной кислоты с водой.In order to expand the range of polymers to obtain heat-resistant fibers, it is proposed to use poly-2,2-octamethylenedibenzimidazole as a polymer, formic acid as the solvent of the latter, and a mixture of formic acid and water as a precipitation bath.
Пример. Полимер с т) 7 раствор ют в НСООН и раствор, упаренный до конпентрации 22 вес. о/о, формуют в осадительную ванну с объемным составом 10% НСООН и 90Vo HgO при 30°С. Формование провод т при таких услови х: Скорость, м/минExample. The polymer with t) 7 is dissolved in HCOOH and the solution is evaporated to a concentration of 22 wt. о / о, molded into a precipitation bath with a volume composition of 10% HCOOH and 90Vo HgO at 30 ° C. The molding is carried out under these conditions: Speed, m / min
истечени пр дильного раствора 0,117 приема на первый приемный узел 1 приема на второй приемный узел 5,4 величина выт жки фильерной, о/ 465 мокрой440.the outflow of the spinning solution 0.117 of reception at the first receiving node 1 of reception at the second receiving node 5.4 of the magnitude of the draw spin drawing, about / 465 wet440.
Свежесформованное волокно имеет номер 853, прочность 30 км разрывной длины и разрывное удлинение 20%. Послетермовакуумной обработки в течение 3 часпри 160°С волокно приобретает следующиехарактеристики:The newly formed fiber has the number 853, the strength of 30 km of breaking length and the tensile strength of 20%. After the vacuum treatment for 3 hours at 160 ° C, the fiber acquires the following characteristics:
но.мер1093but.mer1093
прочность км разр. дл.54strength km km. dl.54
разрывное удлинение, о/,,19breaking elongation, o / ,, 19
модуль, кг/м-21060.module, kg / m-21060.
Предмет изобретени Subject invention
Claims (3)
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU803225345A Addition SU991558A2 (en) | 1980-12-26 | 1980-12-26 | Device for control of electronic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU202430A1 true SU202430A1 (en) |
Family
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