SU406978A1 - METHOD OF OBTAINING POLYESTER MONO FIBER - Google Patents

METHOD OF OBTAINING POLYESTER MONO FIBER

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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
Application number
SU1750696A
Other languages
Russian (ru)
Inventor
Л. И. Бродска В. Э. Геллер
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU1750696A priority Critical patent/SU406978A1/en
Application granted granted Critical
Publication of SU406978A1 publication Critical patent/SU406978A1/en

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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.

SU1750696A 1972-02-22 1972-02-22 METHOD OF OBTAINING POLYESTER MONO FIBER SU406978A1 (en)

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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