SU136046A1 - Method of waterproofing polyvinyl alcohol fibers - Google Patents
Method of waterproofing polyvinyl alcohol fibersInfo
- Publication number
- SU136046A1 SU136046A1 SU666160A SU666160A SU136046A1 SU 136046 A1 SU136046 A1 SU 136046A1 SU 666160 A SU666160 A SU 666160A SU 666160 A SU666160 A SU 666160A SU 136046 A1 SU136046 A1 SU 136046A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- polyvinyl alcohol
- waterproofing
- alcohol fibers
- acetalization
- fiber
- Prior art date
Links
- 239000000835 fiber Substances 0.000 title description 8
- 238000000034 method Methods 0.000 title description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 title description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 title description 2
- 238000004078 waterproofing Methods 0.000 title 1
- 238000006359 acetalization reaction Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
Description
Известен способ гидрофобизации полнвинилспиртовых волокон диальдегидом терефталевой кислоты в присутствии серной кислоты в качестве катализатора.There is a method of hydrophobization of full-vinyl alcohol fibers with terephthalic acid dialdehyde in the presence of sulfuric acid as a catalyst.
Недостаток этого способа состоит в том, что ацеталирование волокиа провод т не в водной среде, а в растворах метилового спирта и, кроме того, волокно должно быть обработано в атмосфере перегретого пара при 215° в течение 3 мин, что экономически не выгодно.The disadvantage of this method is that acetalization of the wire is not carried out in an aqueous medium, but in solutions of methyl alcohol and, moreover, the fiber must be treated in an atmosphere of superheated steam at 215 ° for 3 minutes, which is not economically profitable.
Предлагаемый способ отличаетс от известного тем, что ацеталирование ведут в водном растворе, с целью упрощени процесса и улучшени условий труда.The proposed method differs from the known one in that acetalization is carried out in aqueous solution in order to simplify the process and improve working conditions.
Ацеталирование волокна провод т по следующему способу.The acetalization of the fiber is carried out as follows.
Свежеспр денное волокно, мину стадию термической стабилизации , направл ют в ванну, содержащую 18-20% серной кислоты, 20% сульфата натри , 0,8-1,0% терефталевого диальдегида и воду. При медленном повышении температуры (на Г в минуту) ванну нагревают от 10 до 70°. При 70° ацеталирование продолжают еще 2 часа так, что общее врем ацеталировани составл ет 3 часа. По окончании ацеталировани волокно промывают и сушат.The freshly spun fiber, mine thermal stabilization stage, is sent to a bath containing 18–20% sulfuric acid, 20% sodium sulfate, 0.8–1.0% terephthalic dialdehyde, and water. With a slow increase in temperature (at G per minute), the bath is heated from 10 to 70 °. At 70 °, acetalization is continued for another 2 hours so that the total acetalization time is 3 hours. At the end of the acetalization, the fiber is washed and dried.
Обработанное по описанному способу волокно обладает прочностью в 18-20 км разрывной длины; имеет щерстистый гриф и повышенную объемность, что позвол ет использовать его дл смески с шерстью.The fiber processed according to the described method has a strength of 18–20 km of breaking length; It has a haired and fretted neck, which allows it to be used for blending with wool.
Предмет изобретени Subject invention
Способ гидрофобизации ноливинилспиртовых волокон терефталевым диальдегидом в присутствии серной кислоты в качестве катализатора , отличающийс тем, что, с целью упрощени процесса и улучшени условий труда ацеталирование ведут в водном растворе.The method of hydrophobization of polyvinyl alcohol fibers with terephthalic dialdehyde in the presence of sulfuric acid as a catalyst, characterized in that, in order to simplify the process and improve working conditions, acetalization is carried out in an aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU666160A SU136046A1 (en) | 1960-05-09 | 1960-05-09 | Method of waterproofing polyvinyl alcohol fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU666160A SU136046A1 (en) | 1960-05-09 | 1960-05-09 | Method of waterproofing polyvinyl alcohol fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU136046A1 true SU136046A1 (en) | 1960-11-30 |
Family
ID=48292336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU666160A SU136046A1 (en) | 1960-05-09 | 1960-05-09 | Method of waterproofing polyvinyl alcohol fibers |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU136046A1 (en) |
-
1960
- 1960-05-09 SU SU666160A patent/SU136046A1/en active
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