SU406978A1 - METHOD OF OBTAINING POLYESTER MONO FIBER - Google Patents
METHOD OF OBTAINING POLYESTER MONO FIBERInfo
- Publication number
- SU406978A1 SU406978A1 SU1750696A SU1750696A SU406978A1 SU 406978 A1 SU406978 A1 SU 406978A1 SU 1750696 A SU1750696 A SU 1750696A SU 1750696 A SU1750696 A SU 1750696A SU 406978 A1 SU406978 A1 SU 406978A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stage
- obtaining polyester
- polyester mono
- monofilament
- temperature
- Prior art date
Links
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- Artificial Filaments (AREA)
Description
1one
Изобретение относитс к ироизводству синтетических волокон.The invention relates to the manufacture of synthetic fibers.
Известен снособ получени полиэфирного моноволокна посредством . формовани и первого выт гивани в 1-3 раза нри температуре, превышающей температуру стекловани полимера на 15-30 С, второго выт гивани в 2-4 раза при 15-25 С и третьего выт гивани до общей кратности 7-lU при 170-2бО°С.A known method for producing polyester monofilament is through. molding and first stretching 1-3 times at a temperature higher than the glass transition temperature of the polymer by 15-30 ° C, second stretching 2-4 times at 15-25 ° C and the third stretching to a total ratio of 7-lU at 170-2bO ° s
Дл повышени прочности моноволокна вторую стадию выт гивани предлагаетс проводить при температуре от до температуры сте-кловани полимера.In order to increase the strength of the monofilament, the second stage of stretching is proposed to be carried out at a temperature from to the temperature of the steadiness of the polymer.
Пример 1. Моноволокио диаметром 0,5 мм формуют из расплава полиэтилентерефталата с молекул рным весом около 25000 в охлаждающую воду и затем подвергают терхстадийному выт гиванию. На первой стадии моноволокно выт гивают в 2 раза при в воде, на второй стадии - в 2,7 раза при 60°С в воде, на третьей стадии -в-1,5 -раза при 220°С в камере с псевдоожиженнЫМ слоем стекл нных шариков со скоростью нити на выходе агрегата УО м/мин. Получают моноволокно диаметром 0,16 мм со следующими физико-механическими показател ми: тонина 30 текс; прочность 32,5 гс/текс; удлинение при разрыве 6%; плотность 1,329 с/см.Example 1. Monovolokio, 0.5 mm in diameter, is molded from a melt of polyethylene terephthalate with a molecular weight of about 25,000 into cooling water and then subjected to a three-stage stretching. At the first stage, the monofilament is pulled out 2 times with water, at the second stage - 2.7 times at 60 ° C in water, at the third stage - 1.5 times at 220 ° C in a chamber with a fluidized glass layer balls with the speed of the thread at the output of the unit EO m / min. A monofilament with a diameter of 0.16 mm is obtained with the following physicomechanical indicators: fineness 30 tex; strength 32.5 gf / tex; elongation at break 6%; density 1,329 s / cm.
Пример 2. Мо:новолокло диаметром 0,86 мм формуют и выт гивают на первой стадии как в примере 1, на второй стадии - в 2,4 раза при 30°С в воде, на третьей стадии - в 1,56 раза при 220°С в камере с псевдоожилсенпым слоем стекл нных шариков со скоростью на выходе агрегата 90 м/мин. Получают моноволокно диаметром 0,31 мм- со следующими показателЯМи: топина 101 текс; прочность 79,2 гс/текс; удлинение при разрыве 6%; плотность 1,390 г/см.Example 2. Mo: a new fiber with a diameter of 0.86 mm is molded and stretched in the first stage as in example 1, in the second stage 2.4 times at 30 ° C in water, in the third stage 1.56 times at 220 ° С in a chamber with a fluidized bed of glass balls with a speed at the exit of the unit of 90 m / min. A monofilament with a diameter of 0.31 mm is obtained with the following indicators: topin 101 tex; strength 79.2 gf / tex; elongation at break 6%; density 1,390 g / cm.
Предмет изобретен и The subject is invented and
Способ получени полиэфирного моноволокна , состо щего не менее чем на 85% из полиэтилентерефталата , путем формовани полимера и трехстаднйного выт гивани на первой стадии в 1-3 раза при тем-пературе, превышающей температуру стекловани на 15-30°С, на второй стадии в 2-4 раза при температуре ниже температуры стекловани н на третьей стадии до общей выт жки в 7-10 раз при 170-260°С, отличающийс тем, что, с целью повышени прочности моноволокна, вторую гтг1Л|)ю ировод т при температуре от 25°С до температуры стекловани полимера.A method of producing a polyester monofilament consisting of not less than 85% of polyethylene terephthalate by molding a polymer and a three-stage stretching in the first stage 1-3 times at a temperature exceeding the glass transition temperature by 15-30 ° C, in the second stage in 2-4 times at a temperature below the glass transition temperature at the third stage, up to a total stretch of 7-10 times at 170-260 ° C, characterized in that, in order to increase the strength of the monofilament, the second rtgr) at a temperature from 25 ° C to the glass transition temperature of the polymer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1750696A SU406978A1 (en) | 1972-02-22 | 1972-02-22 | METHOD OF OBTAINING POLYESTER MONO FIBER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1750696A SU406978A1 (en) | 1972-02-22 | 1972-02-22 | METHOD OF OBTAINING POLYESTER MONO FIBER |
Publications (1)
Publication Number | Publication Date |
---|---|
SU406978A1 true SU406978A1 (en) | 1973-11-21 |
Family
ID=20503969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1750696A SU406978A1 (en) | 1972-02-22 | 1972-02-22 | METHOD OF OBTAINING POLYESTER MONO FIBER |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU406978A1 (en) |
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1972
- 1972-02-22 SU SU1750696A patent/SU406978A1/en active
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