RO102449B1 - Procedeu pentru obtinerea celulozei electrotehnice demineralizate, cianoetilate - Google Patents
Procedeu pentru obtinerea celulozei electrotehnice demineralizate, cianoetilateInfo
- Publication number
- RO102449B1 RO102449B1 RO135953A RO13595388A RO102449B1 RO 102449 B1 RO102449 B1 RO 102449B1 RO 135953 A RO135953 A RO 135953A RO 13595388 A RO13595388 A RO 13595388A RO 102449 B1 RO102449 B1 RO 102449B1
- Authority
- RO
- Romania
- Prior art keywords
- electrotechnical
- cellulose
- parts
- minus
- demineralized
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title abstract 3
- 239000001913 cellulose Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- JXBPSENIJJPTCI-UHFFFAOYSA-N ethyl cyanate Chemical compound CCOC#N JXBPSENIJJPTCI-UHFFFAOYSA-N 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 abstract 1
- 229920003043 Cellulose fiber Polymers 0.000 abstract 1
- 239000006286 aqueous extract Substances 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 238000000265 homogenisation Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Inventia de fata se refera la un procedeu de obtinere a celulozei electrotehnice cu caracteristici functionale superioare, adecvata folosirii pentru fabricarea izolatiilor tip condensator. Procedeul consta în înnobilarea prin cianoetilare a celulozei electrotehnice demineralizate, de consistenta 10%, care se actioneaza prin tratare timp de 1 h la 20 plus sau minu 2 grade C, cu amestecare periodica pentru omogenizare, cu o solutie10% de hidroxid de sodiu, solid pur, la 90 parti de fibra de celuloza uscata, urmata de îndepartarea excesului de reactiv, cianocetilarea desfasurându-se în prezenta de acrilonitril tehnic, adaugat în proportie de 20 parti la 80 parti celuloza uscata timp de 2 h plus sau minus 5 min la 20 ... 25 grade C, produsul de reactie fiind spalat cu apa demineralizata pâna la pH=6,5 ... 7 al extractului apos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135953A RO102449B1 (ro) | 1988-11-21 | 1988-11-21 | Procedeu pentru obtinerea celulozei electrotehnice demineralizate, cianoetilate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO135953A RO102449B1 (ro) | 1988-11-21 | 1988-11-21 | Procedeu pentru obtinerea celulozei electrotehnice demineralizate, cianoetilate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO102449A2 RO102449A2 (ro) | 1991-10-09 |
| RO102449B1 true RO102449B1 (ro) | 1991-10-30 |
Family
ID=20122856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO135953A RO102449B1 (ro) | 1988-11-21 | 1988-11-21 | Procedeu pentru obtinerea celulozei electrotehnice demineralizate, cianoetilate |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO102449B1 (ro) |
-
1988
- 1988-11-21 RO RO135953A patent/RO102449B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO102449A2 (ro) | 1991-10-09 |
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