SU125382A1 - The method of obtaining heat-resistant varnish for enameling wires - Google Patents
The method of obtaining heat-resistant varnish for enameling wiresInfo
- Publication number
- SU125382A1 SU125382A1 SU626318A SU626318A SU125382A1 SU 125382 A1 SU125382 A1 SU 125382A1 SU 626318 A SU626318 A SU 626318A SU 626318 A SU626318 A SU 626318A SU 125382 A1 SU125382 A1 SU 125382A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- wires
- obtaining heat
- resistant varnish
- enameling
- enameling wires
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/143—Feedstock the feedstock being recycled material, e.g. plastics
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Известен способ получени нагревостойкого лака дл эмалировани проводов путем конденсащш ароматических кислот алн их эфиров, в частности диметилового эфира терефталевой кислоты, с гликол ми и глицерином. Этот сиособ основан иа известной в органической химии и в химии высокомолекул рных соединений реакции этерификации.A method is known for producing heat-resistant lacquer for enameling wires by condensing aromatic acids of alnes to their esters, in particular terephthalic acid dimethyl ester, with glycols and glycerol. This method is based on the esterification reaction, known in organic chemistry and in the chemistry of high molecular weight compounds.
Описываемый способ получени ыагревостойкого лака ио сравнению с извест ым позвол ет использовать отходы производства синтетического волокна лавсаи в виде заправочных концов, спутанных нитей, обрезков трикотажного производства, отходов подготовительного и ткацкого цехов текстильных фабрик, а также отходы производства пленок типа майлар и хостафан, получающихс при обрезке рулонов, и другие некондиционные по толщине и размерам лоскуты пленки.The described method of producing heat-resistant lacquer compared with the known one allows using waste from the production of synthetic fiber of lava and in the form of filling ends, matted threads, scraps of knitwear, wastes of preparatory and weaving workshops of textile factories, as well as wastes from the production of Mylar and Hostan films produced cutting rolls, and other substandard in thickness and size of the flaps of the film.
С этой целью в качестве производного терефталевой кислоты примен ют полиэтилентерефталат, который подвергают нагреванию с глицерином вначале при 250-260, а затем при 280-285 в присутствии окиси свинца в качестве катализатора.For this purpose, polyethylene terephthalate is used as a derivative of terephthalic acid, which is subjected to heating with glycerol first at 250-260 and then at 280-285 in the presence of lead oxide as a catalyst.
Способ осуществл ют следующи/л образом. В аппарат, снабженный механической мещалкой и термометром, загружают обезвоженный глицерин и отходы производства синтетического волокна лавсан из расчета 0,5 мол глицерина на 1 моль отходов. Процесс деструкции ведут при 250-260 в течение 2-3 час., после чего температуру повышают до 280-285°, ввод т катализатор - окись свинца (0,1-0,2Vo от веса компонентов реакции) и при работающей мещалке выдерживают температуру 280-285° в течение часа.The method is carried out in the following manner. Dehydrated glycerin and waste products from the production of synthetic fiber lavsan at the rate of 0.5 mol of glycerin per 1 mole of waste are loaded into the apparatus, equipped with a mechanical baffle and a thermometer. The process of destruction is carried out at 250-260 for 2-3 hours, after which the temperature is raised to 280-285 °, a catalyst — lead oxide (0.1–0.2Vo by weight of the reaction components) is introduced and the temperature is maintained at a running mixer. 280-285 ° for an hour.
№ 125382№ 125382
- Выдел ющийс -.в процессе реакции этиленгликоль может быть собран путем отгона через пр мой холодильник. По окончании выделени этиленг ивдр ч еакциолную смесь охлаждают до 150-160°, разбавл ют трикрезолом и тщательно перемешивают. Количество трикрезола берут в зависимости от в зкости получаемого лака. Готовый лак сливают в тару.- The ethylene glycol released during the reaction can be collected by stripping through a direct cooler. At the end of the release, the ethylene hydrochloride mixture is cooled to 150-160 °, diluted with tricresol and thoroughly mixed. The amount of tricresol is taken depending on the viscosity of the lacquer produced. Ready varnish is drained into the container.
Полученный лак используетс дл эмалировани проводов по обычной технологии. Эмалированные этим лаком провода имеют высокую нагревательную стойкость (в течение 5 суток при 200° эмалированные провода сохран ют исходную эластичность) и высокую механическую прочность , позвол ющую примен ть эти провода без дополнительной обмотки .The resulting lacquer is used to enamel the wires in a conventional manner. The wires enameled with this varnish have a high heating resistance (for 5 days at 200 ° the enameled wires retain their original elasticity) and high mechanical strength, which makes it possible to use these wires without additional winding.
Предмет изобретени Subject invention
Способ получени нагревостойкого лака дл эмалировани проводов на основе производных терефталевой кислоты, отличающийс тем, что, с целью использовани отходов волокон и пленок лавсап, в качестве производного терефталевой кислоты примен ют полиэтилентерефталат , который подвергают нагревапню с глицерином вначале при 250-260°, а затем при 280-285° в присутствии окиси свинца в качестве катализатора.The method of producing heat-resistant lacquer for enameling wires based on derivatives of terephthalic acid, characterized in that, in order to use waste fibers and lavsap films, polyethylene terephthalate is used as a derivative of terephthalic acid, which is subjected to heating with glycerol at 250-260 ° and then at 280-285 ° in the presence of lead oxide as a catalyst.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU626318A SU125382A1 (en) | 1959-04-24 | 1959-04-24 | The method of obtaining heat-resistant varnish for enameling wires |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU626318A SU125382A1 (en) | 1959-04-24 | 1959-04-24 | The method of obtaining heat-resistant varnish for enameling wires |
Publications (1)
Publication Number | Publication Date |
---|---|
SU125382A1 true SU125382A1 (en) | 1959-11-30 |
Family
ID=48396741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU626318A SU125382A1 (en) | 1959-04-24 | 1959-04-24 | The method of obtaining heat-resistant varnish for enameling wires |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU125382A1 (en) |
-
1959
- 1959-04-24 SU SU626318A patent/SU125382A1/en active
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