SU132814A1 - The way to protect polyvinyl ethylbutyral from aging - Google Patents
The way to protect polyvinyl ethylbutyral from agingInfo
- Publication number
- SU132814A1 SU132814A1 SU659688A SU659688A SU132814A1 SU 132814 A1 SU132814 A1 SU 132814A1 SU 659688 A SU659688 A SU 659688A SU 659688 A SU659688 A SU 659688A SU 132814 A1 SU132814 A1 SU 132814A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- ethylbutyral
- aging
- polyvinyl
- way
- protect
- Prior art date
Links
Landscapes
- Moulding By Coating Moulds (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Известен епособ защиты поливинилацеталей от старени введением стабилизаторов в процессе их переработки.A known method of protecting polyvinyl acetals from aging is the introduction of stabilizers during their processing.
Описываемый способ отличаетс от известного тем, что стабилизации подвергают смешанный поливинилацеталь - поливинилэтилальбутираль , примен в качестве стабилизаторов азометины, гидразин или аминодисульфид.The described method differs from the well-known fact that mixed polyvinyl acetal - polyvinyl ethyl albutiral is subjected to stabilization, using azomethines, hydrazine or aminodisulfide as stabilizers.
Указанные стабилизаторы в количестве 0,5% (вес.) обеспечивают сохранение первоначальных физико-химических свойств полимера в течение 6 час прогрева его в токе воздуха при 160, повышают термостойкость поливинилэтилальбутирал , снинсают количество выдел ющегос альдегида, сохран ют полную растворимость полимера в спирто-бензоле, уменьшают падение в зкости.The specified stabilizers in the amount of 0.5% (wt.) Ensure the preservation of the initial physicochemical properties of the polymer for 6 hours of heating it in air flow at 160, increase the heat resistance of polyvinyl ethylbutyral, reduce the amount of released aldehyde, retain the complete solubility of the polymer in alcohol. benzene, reduce the drop in viscosity.
У нестабилизированного полимера указанные свойства резко у.удшаютс .For unstabilized polymer, these properties drastically improve.
Пример.Example.
Навеску поливинилэтилальбутирал раствор ют в спирте-бензоле н в готовый раствор вноситс 0,5% стабилизатора на исходный продукт. Из полученного раствора отливают пленки, которые затем высушивают до посто нного веса и испытывают при 160° в системе с протоком воздуха . Выдел ющийс в процессе разложени альдегид поглощают раствором димедона с рН 4,6, а продукт конденсации димедона с альдегидом отфильтровывают и высушивают до посто нного веса.A portion of polyvinyl ethylbutyral is dissolved in alcohol-benzene and 0.5% stabilizer is added to the final solution in the finished solution. Films are cast from the resulting solution, which are then dried to constant weight and tested at 160 ° in an air flow system. The aldehyde released during decomposition is absorbed by a solution of Dimedone with a pH of 4.6, and the condensation product of Dimedone with an aldehyde is filtered off and dried to constant weight.
Метод контрол : начало выделени альдегида, количество БЫДСЛИБшегос альдегида за 6 час старени , в зкость растворимой . фракции и количество нерастворимой фракции.The control method: the beginning of the aldehyde release, the amount of BYDSLIB aldehyde at 6 hours of aging, viscosity soluble. fractions and the amount of insoluble fraction.
Предмет изобретени Subject invention
Способ защиты поливинилэтилальбутирал от старени , о т л и ч а ющийс тем, что в его состав.,ввод т стабилизаторьк азометины, гидразин и аминодисульфид.The method of protection of polyvinyl ethylbutyral against aging, which is due to the fact that it contains stabilizer azomethines, hydrazine and aminodisulfide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU659688A SU132814A1 (en) | 1960-03-19 | 1960-03-19 | The way to protect polyvinyl ethylbutyral from aging |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU659688A SU132814A1 (en) | 1960-03-19 | 1960-03-19 | The way to protect polyvinyl ethylbutyral from aging |
Publications (1)
Publication Number | Publication Date |
---|---|
SU132814A1 true SU132814A1 (en) | 1960-11-30 |
Family
ID=48403832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU659688A SU132814A1 (en) | 1960-03-19 | 1960-03-19 | The way to protect polyvinyl ethylbutyral from aging |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU132814A1 (en) |
-
1960
- 1960-03-19 SU SU659688A patent/SU132814A1/en active
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