SU145972A1 - The method of obtaining non-combustible cation exchange fibers - Google Patents
The method of obtaining non-combustible cation exchange fibersInfo
- Publication number
- SU145972A1 SU145972A1 SU698279A SU698279A SU145972A1 SU 145972 A1 SU145972 A1 SU 145972A1 SU 698279 A SU698279 A SU 698279A SU 698279 A SU698279 A SU 698279A SU 145972 A1 SU145972 A1 SU 145972A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- combustible
- cation exchange
- fiber
- exchange fibers
- obtaining non
- Prior art date
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- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Description
Известны способы получени негорючих катионообменных волокон- Однако прочность этих волокон невелика.Methods are known for producing non-combustible cation-exchange fibers. However, the strength of these fibers is small.
Предлагаемый способ отличаетс тем, что поливинилспиртовые волокна подвергают обработке хлорокисью фосфора, что позвол ет повысить их прочностьПри осупдествлении способа поливинилспиртовые волокна обрабатывают 25-30% хлорокисью фосфора при температуре 60°.The proposed method is characterized by the fact that polyvinyl alcohol fibers are treated with phosphorus oxychloride, which makes it possible to increase their durability. When the method is understood, polyvinyl alcohol fibers are treated with 25-30% phosphorus oxychloride at a temperature of 60 °.
Пример 1. Волокно, кондиционированное в течение 1 часа при 110°, нагревают 3 часа в ванне, состо щей из хлорокиси фосфора (25- 30%) и хлороформа (75-70%) при температуре 55-60°. Модуль ванны 50-70. Затем волокно промывают этанолом, содержащим небольшое количество аммиака (дл нейтрализации образовавщихс кислот)После сущки при 25-30° получают негорючее водорастворимое волокно с прочностью 23-27 км разрывной длины.Example 1. A fiber conditioned for 1 hour at 110 ° is heated for 3 hours in a bath consisting of phosphorus oxychloride (25-30%) and chloroform (75-70%) at a temperature of 55-60 °. Bath module 50-70. Then the fiber is washed with ethanol containing a small amount of ammonia (to neutralize the formed acids). After drying at 25-30 °, non-combustible water-soluble fiber with a strength of 23-27 km of breaking length is obtained.
Пример 2. Волокно подвергают термообработке в течение 5 мин при 215° и ацеталируют в формальдегидной ванне (4% формальдегида , 20% серной кислоты, 25% сульфата натри и вода). Затем волокно выдерживают 40 минут при 70°, после чего промывают, сущат и кондиционируют в течение 1 часа при 110°. Нагревают в фосфорилирующей ванне, промывают и сушат волокно аналогично примеру 1. Получают негорючее гидрофобное волокно с прочностью 23-27 кмExample 2. The fiber is heat treated for 5 minutes at 215 ° and acetalized in a formaldehyde bath (4% formaldehyde, 20% sulfuric acid, 25% sodium sulfate and water). Then the fiber is kept for 40 minutes at 70 °, after which it is washed, made and conditioned for 1 hour at 110 °. Heated in a phosphorylating bath, washed and dried fiber as in Example 1. A non-combustible hydrophobic fiber with a strength of 23-27 km is obtained.
Пример 3. Волокно, полученное по примеру 2, дозар жают в Нформу раствором 1 н. серной кислоты и промывают водой до нейтральной реакции- Обменна емкость волокна, проверенна по иону натри в статических услови х, составл ет 0.6-1,0 м.г-экв- г волокна.Example 3. The fiber obtained according to Example 2 was discharged into the H form with a solution of 1N. sulfuric acid and washed with water until neutral. The exchange capacity of the fiber, tested by sodium ion under static conditions, is 0.6-1.0 gg-eq g of fiber.
Предмет изобретени Subject invention
Способ получени негорючих катионообменных волокон, отличающийс тем, что, с целью повышени прочности модифицированных волокон, поливинилспиртовые волокна обрабатывают хлорокисью фосфора.A method for producing non-combustible cation-exchange fibers, characterized in that, in order to increase the strength of the modified fibers, polyvinyl alcohol fibers are treated with phosphorus oxychloride.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU698279A SU145972A1 (en) | 1961-02-20 | 1961-02-20 | The method of obtaining non-combustible cation exchange fibers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU698279A SU145972A1 (en) | 1961-02-20 | 1961-02-20 | The method of obtaining non-combustible cation exchange fibers |
Publications (1)
Publication Number | Publication Date |
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SU145972A1 true SU145972A1 (en) | 1961-11-30 |
Family
ID=48301470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU698279A SU145972A1 (en) | 1961-02-20 | 1961-02-20 | The method of obtaining non-combustible cation exchange fibers |
Country Status (1)
Country | Link |
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SU (1) | SU145972A1 (en) |
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1961
- 1961-02-20 SU SU698279A patent/SU145972A1/en active
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