SU729066A1 - Method of oftaining loose powder of natural rubber or rubber composition - Google Patents
Method of oftaining loose powder of natural rubber or rubber composition Download PDFInfo
- Publication number
- SU729066A1 SU729066A1 SU772474866A SU2474866A SU729066A1 SU 729066 A1 SU729066 A1 SU 729066A1 SU 772474866 A SU772474866 A SU 772474866A SU 2474866 A SU2474866 A SU 2474866A SU 729066 A1 SU729066 A1 SU 729066A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rubber
- crumb
- chalk
- oftaining
- loose powder
- Prior art date
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Description
материалов, туда же добавл ют мел, нагретый до температуры в избыточном количестве. Композици перемешиваетс при температуре 80-100°С в течение 15-20 мин. Полученну7о после перемешивани крошку каучука или резиновой смеси отдел ют от избытков мела на вибросите и остатки мела затем отмывают 20% раствором сол ной кислоты в сосуде с мешалкой при интен снвном перемешивании. После промывки наход ш,а с на поверхности частиц каучука пленка резины модифицируетс гипохлоритом натри , содержащего 8 :с/л активного хлора, в течение 40 мин,, Затем крошка промываетс водой и сушитс при температуре 60-80°С Физико-механические характеристики крошки каучуков СКД, БСК, СКИ-3 представлены в табл, 1,materials, there is added chalk, heated to a temperature in an excess amount. The composition is stirred at a temperature of 80-100 ° C for 15-20 minutes. After mixing, the crumb of rubber or rubber mixture is separated from the excess chalk on the vibrating screen and the remaining chalk is then washed with a 20% solution of hydrochloric acid in a stirred vessel with intensive mixing. After washing, the rubber film is modified with sodium hypochlorite containing 8: s / l active chlorine for 40 minutes on the surface of rubber particles. Then the crumb is washed with water and dried at a temperature of 60-80 ° C. SKD SKS, BSK, SKI-3 are presented in Table 1,
Таблица 1Table 1
Содержание антиагломератора в каучуке 2-6 масс.%The content of the antiagglomerator in rubber 2-6 wt.%
Пример 2. Получение неслипающейс крошки резиновой смеси (на осИове каучуков СКД, СКИ-3, СКМС ЗОАРКМ-15 ).Example 2. Preparation of non-adherent crumb rubber mixture (on axial rubber SKD, SKI-3, SKMS ZOARKM-15).
В смесителе дл порошкообразных материалов готов т композицию, состо щую из окиси цинка и окиси магни при соотношении 1:2. Полученную композицию ввод т в хлоропреновьгй латекс Л-7 при перемешивании,In a mixer for powdered materials, a composition is prepared consisting of zinc oxide and magnesia at a ratio of 1: 2. The resulting composition is introduced into chloroprene latex L-7 with stirring.
Хлоропреновый латекс Л-730%Chloroprene latex L-730%
Композици 5%Composition 5%
Вс а65%Sun a65%
Резиновые смеси измельчают на дробильной установке типа ДКУ-М сов местно с приготовленной дисперсией После измельчени резиновых смесей полученную после фильтрации массу заСодержание ингредиентов The rubber mixtures are ground in a crushing plant of the type DKU-M together with the prepared dispersion. After grinding the rubber mixtures, the mass obtained after filtration is contained in the ingredients.
Ингредиента резиновых смесейf Ingredient Rubber Mixes
СКД .ACS.
ОКМС ЗОАРКМСКИ-3OKMS ZOARKMSKI-3
Сера Sulfur
АльтаксAltax
гружают в смеситель дл порошкообразных материалов, туда же добавл ют мел, нагретый до температуры в избыточном количестве. Композици перемешиваетс при темлературе 80- в течение 15-20 мин. Полученную после перемешивани крошку резиновой смеси отдел ют от избытков мела на вибросите и остатки мела затем отмывэ-ют 20% раствором сол ной кислоты. Отмывание от мела крошки происходило в сосуде с мешалкой при интенсивном перемешивании. После промывки содержаща с на поверхности частиц крошка резиновой смеси пленка резины модифицируетс гипохлоритом натри , содержащего 8 г/л активного хлора, в течение 40 лжн, затем крошка .промываетс водой и сушитс при температуре 60-80 Сloaded into a mixer for powdered materials, there is added chalk, heated to a temperature in an excess amount. The composition is stirred at temperature 80 for 15-20 minutes. The crumb rubber mixture obtained after mixing is separated from the excess chalk on the vibrating screen and the remaining chalk is then washed with a 20% hydrochloric acid solution. The washing of chalk from the crumb occurred in a vessel with a stirrer with vigorous stirring. After washing, the rubber film contained on the surface of the crumb particles of the rubber mixture is modified with sodium hypochlorite containing 8 g / l of active chlorine for 40 hours, then the crumb is washed with water and dried at a temperature of 60-80
Состав резиновых смесей представлен 3 табЛй 2The composition of rubber mixtures represented 3 tabLy 2
Таблица 2 вес,%Table 2 weight%
luO 1,0 0,6luO 1.0 0.6
ИнгредиентыIngredients
Сантокюр дФГSantokur dfg
Стеаринова Stearinova
кислотаacid
Окись цинкаZinc oxide
Рубракс Неозон Д Физико-механические характёриоти ки сыпучести крошки резиновых смесейRubraks Neozon D. Physico-mechanical characteristics of the flowability of crumb rubber compounds
72906647290664
Продолжение табл.2Continuation of table 2
Содержание ингредиентов резиновых смесей, вес.%The content of the ingredients of rubber compounds, wt.%
3,03.0
1,0 ,5,0 - 1.0, 5.0 -
Таблица на основе СКД, CKMC-30APKM-15,iCKH-3 представлены в табл. 3.The table based on SKD, CKMC-30APKM-15, iCKH-3 is presented in Table. 3
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772474866A SU729066A1 (en) | 1977-04-08 | 1977-04-08 | Method of oftaining loose powder of natural rubber or rubber composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772474866A SU729066A1 (en) | 1977-04-08 | 1977-04-08 | Method of oftaining loose powder of natural rubber or rubber composition |
Publications (1)
Publication Number | Publication Date |
---|---|
SU729066A1 true SU729066A1 (en) | 1980-04-25 |
Family
ID=20704463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772474866A SU729066A1 (en) | 1977-04-08 | 1977-04-08 | Method of oftaining loose powder of natural rubber or rubber composition |
Country Status (1)
Country | Link |
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SU (1) | SU729066A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003421A1 (en) * | 1982-03-29 | 1983-10-13 | Firestone Tire & Rubber Co | Process for preparation of free flowing particles |
US5194499A (en) * | 1983-08-29 | 1993-03-16 | Bridgestone/Firestone, Inc. | Polymerizing diene block copolymer in presence of rubber |
EP0790272A3 (en) * | 1996-02-15 | 1998-04-15 | Zeon Chemicals Incorporated | Non-agglomerating elastomeric particles |
-
1977
- 1977-04-08 SU SU772474866A patent/SU729066A1/en active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003421A1 (en) * | 1982-03-29 | 1983-10-13 | Firestone Tire & Rubber Co | Process for preparation of free flowing particles |
US5194499A (en) * | 1983-08-29 | 1993-03-16 | Bridgestone/Firestone, Inc. | Polymerizing diene block copolymer in presence of rubber |
EP0790272A3 (en) * | 1996-02-15 | 1998-04-15 | Zeon Chemicals Incorporated | Non-agglomerating elastomeric particles |
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