SU502909A1 - Method of coagulation of divinyl nitrile rubbers - Google Patents
Method of coagulation of divinyl nitrile rubbersInfo
- Publication number
- SU502909A1 SU502909A1 SU1987186A SU1987186A SU502909A1 SU 502909 A1 SU502909 A1 SU 502909A1 SU 1987186 A SU1987186 A SU 1987186A SU 1987186 A SU1987186 A SU 1987186A SU 502909 A1 SU502909 A1 SU 502909A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- coagulation
- nitrile rubbers
- rubber
- divinyl
- divinyl nitrile
- Prior art date
Links
Description
ДивинилDivinyl
Нитрил акриловой кислотыAcrylic Nitrile
Алкилсульфонат натри Sodium alkyl sulfonate
Калиевое мыло диспропорционированной канифолиPotassium Disproportionate Soap Rosin
Лейканол Сульфат натри Трилон „БLeukanol sodium sulfate Trilon B
Сульфат двухвалентного железа семиводныйFerrous sulphate of semivalent
РонгалитRongalite
ГиперизHyperies
ДипрокслдDiproksld
трет. Додецилмеркаптанtert Dodecyl mercaptan
ВодаWater
Стоппер: диметилдитиокарбамат натри Stopper: sodium dimethyldithiocarbamate
Температура реакции 5±2°. Глубина полимеризации 65% достигаетс за 10-12 ч. После отгонки незаполимеризовавшихс мономеров латексы с рН 8-10 и степенью адсорбционной насыщенности 46-49% заправл ют синтанолом ДС-10 в количестве 0,3- 0,4 вес. % на каучук и подщелачивают до рН 11 - 12.The reaction temperature is 5 ± 2 °. A polymerization depth of 65% is reached in 10-12 hours. After the non-polymerized monomers are distilled off, latexes with a pH of 8-10 and a degree of adsorption saturation of 46-49% are charged with DS-10 syntanol in an amount of 0.3-0.4 wt. % rubber and alkalinized to a pH of 11 - 12.
Коагул цию латексов провод т по каскадной схеме в пвух коагул ционных аппаратах.The coagulation of the latexes is carried out in a cascade scheme in two coagulation devices.
МономерMonomer
В первый аппарат каскада подаютс латекс и очищенный раствор хлористого натри . Здесь производ т коагул цию латекса при температуре 50-65°С. Второй аппарат каскада служит дозревателем крошки каучука. Величина крощки каучука легко регулируетс изменением температуры коагул ции и варьированием числа оборотов мешалок в аппаратах каскада.Latex and purified sodium chloride solution are supplied to the first cascade apparatus. The latex is coagulated at a temperature of 50-65 ° C. The second unit of the cascade serves as a rubber crumbler. The amount of rubber crumb is easily controlled by varying the coagulation temperature and varying the number of revolutions of the agitators in the cascade apparatus.
Таблица ITable I
Промывку крошки каучука провод т в двух коагул ционных аппаратах при 40-50°С. Затем крошка каучука поступает на предварительный отжим, где отжимаетс до остаточпой влаги 8-10%. Сушку каучука осуш;ествл ют в одноходовой ленточной сушилке.Washing of rubber crumbs is carried out in two coagulation devices at 40-50 ° C. Then the rubber crumbs are fed to the preliminary spin, where they are pressed to a residual moisture of 8-10%. The drying of the rubber was dried; it was set up in a one-way belt dryer.
Химический состав и физико-механические свойства каучуков СКН-26АС, СКН-40АС и их вулканизаторов приведены в табл. 1.The chemical composition and physico-mechanical properties of SKN-26AS, SKN-40AS rubbers and their vulcanizers are given in table. one.
Данные о вли нии различных способов коагул ции латекса СКН-26 на чистоту получаемого каучука приведены в табл. 2.Data on the effect of various methods of coagulation of SKN-26 latex on the purity of the obtained rubber are given in Table. 2
Таблица 2table 2
Таблица 3Table 3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1987186A SU502909A1 (en) | 1974-01-21 | 1974-01-21 | Method of coagulation of divinyl nitrile rubbers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1987186A SU502909A1 (en) | 1974-01-21 | 1974-01-21 | Method of coagulation of divinyl nitrile rubbers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU502909A1 true SU502909A1 (en) | 1976-02-15 |
Family
ID=20572990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1987186A SU502909A1 (en) | 1974-01-21 | 1974-01-21 | Method of coagulation of divinyl nitrile rubbers |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU502909A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003022891A1 (en) * | 2001-09-13 | 2003-03-20 | Lg Chem, Ltd. | Process for preparing polymer latex resin powder |
-
1974
- 1974-01-21 SU SU1987186A patent/SU502909A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003022891A1 (en) * | 2001-09-13 | 2003-03-20 | Lg Chem, Ltd. | Process for preparing polymer latex resin powder |
| US7064149B2 (en) * | 2001-09-13 | 2006-06-20 | Lc Chem, Ltd. | Process for preparing polymer latex resin powder |
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