SU81743A1 - The method of obtaining open-cell plastics on the basis of PVC - Google Patents
The method of obtaining open-cell plastics on the basis of PVCInfo
- Publication number
- SU81743A1 SU81743A1 SU397411A SU397411A SU81743A1 SU 81743 A1 SU81743 A1 SU 81743A1 SU 397411 A SU397411 A SU 397411A SU 397411 A SU397411 A SU 397411A SU 81743 A1 SU81743 A1 SU 81743A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- pvc
- basis
- obtaining open
- cell plastics
- plastics
- Prior art date
Links
Landscapes
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Description
Известны способы получени огкрытопористых пластических масс на основе полихлорвинила с применением в качестве парообразовател углекислого аммони и карбоната натри .Methods are known for the preparation of plastic-coated optic-coated plastics using ammonium carbonate and sodium carbonate as a steam generator.
Предлагаемый способ получени пластических масс на основе полихлорвинила отличаетс тем, что производитс термическа обработка пластиката, содержащего в себе смесь, состо ндую из окиси металла (РЬО, АЬОз, ZnO и т. п.), карбоната натри и .карбоната аммони .The proposed method for producing PVC-based plastics is characterized in that thermal processing is carried out on a plastic compound containing a mixture consisting of a metal oxide (PHO, ABOz, ZnO, etc.), sodium carbonate and ammonium carbonate.
В результате получаютс пенистые пластмассы с малым удельным весом и сообщающимис порами, могущие найти применение в качестве губок, тепловых изол ционных лент, звукоизолирующих и плавательных средств и т. п.As a result, foam plastics with low specific gravity and interconnected pores are obtained, which can be used as sponges, thermal insulation tapes, sound insulating and swimming equipment, etc.
Термическа обработка пластиката проводитс в пресс-формах и после полного разложени порообразовател в массе осуществл етс выпуск газовых продуктов распада порообразователей дл разрыва перегородок пор и их взаимного сообщени .Thermal processing of the plastic compound is carried out in molds and after complete decomposition of the pore-forming agent in the mass, gaseous decomposition products of the pore-forming agents are released to break the pore septa and communicate with each other.
Пример. К иластифицированной полихлорвиниловой смоле (ПХВ + 100% дибутилфталата) в смесителе при энергичном перемешивании добавл ют смесь, состо щую из углекислого аммони и двууглекислой соды (по 8% каждого из этих компонеитов от веса полихлорвинила ) , а также 25% замещенного в дибутилфталате сурика (PbO. Перемещивание длитс 1,5-2 час до получени гомогенно красной пасты . После заполнени массой формы до /s, ее герметично закрывают и устанавливают в термощкаф, снабженный вентил ционным устройством дл создани равномерно нагретой воздушной атмосферы с температурой 165-175°.Example. To a plasticized PVC resin (PVC + 100% dibutyl phthalate) in a mixer, add a mixture of ammonium carbonate and bicarbonate soda (8% of each of these componites by weight of PVC), as well as 25% of the substituted dibutyl phthalate mixed with vigorous stirring PbO. Movement lasts 1.5-2 hours until a homogeneous red paste is obtained. After filling with the mass to / s, it is sealed and placed in a heat chamber equipped with a ventilation device to create uniformly heated air atmospheres. s with a temperature of 165-175 °.
После 2-2,5 час выдержки при данной температуре, гор ча форма извлекаетс из щкафа и равномерно отвинчиваютс оба запорных винта до 4 своей высоты, после чего они вновь крепко завинчиваютс , закрыва герметично выходные отверсти запорпыми щариками.After 2-2.5 hours of exposure at a given temperature, the hot form is removed from the cabinet and both locking screws are unscrewed evenly to 4 of their height, after which they are screwed tight again, closing the outlet openings tightly with lockable balls.
Затем закрыта форма охлаждаетс проточной водопроводной водой в течение 20-25 мин, температура падает до +20°.Then the closed mold is cooled with running tap water for 20-25 minutes, the temperature drops to + 20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU397411A SU81743A1 (en) | 1949-05-16 | 1949-05-16 | The method of obtaining open-cell plastics on the basis of PVC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU397411A SU81743A1 (en) | 1949-05-16 | 1949-05-16 | The method of obtaining open-cell plastics on the basis of PVC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU81743A1 true SU81743A1 (en) | 1949-11-30 |
Family
ID=48255095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU397411A SU81743A1 (en) | 1949-05-16 | 1949-05-16 | The method of obtaining open-cell plastics on the basis of PVC |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU81743A1 (en) |
-
1949
- 1949-05-16 SU SU397411A patent/SU81743A1/en active
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