SU478513A1 - Method of preparing carboxyl-containing chloroprene rubber - Google Patents
Method of preparing carboxyl-containing chloroprene rubber Download PDFInfo
- Publication number
- SU478513A1 SU478513A1 SU67988944A SU988944A SU478513A1 SU 478513 A1 SU478513 A1 SU 478513A1 SU 67988944 A SU67988944 A SU 67988944A SU 988944 A SU988944 A SU 988944A SU 478513 A1 SU478513 A1 SU 478513A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chloroprene rubber
- containing chloroprene
- carboxyl
- preparing carboxyl
- rubber
- Prior art date
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Description
Изобретение относитс к промышленности синтетического каучука. Известен способ получени карбоксил содержаще го хлоропренового каучука водно-эмульсионной сополимеризацней хлоропрена с метакриловой кислотой в кислой среде с применением известных эмульгаторов, регул торов и радикальных инициаторов . Цель изобретени - разработка с соба по 1учени карбоксилсодержащег хлороп15енового каучука повышенной стабильности и устойчивости к стру туриванию при хранении. Эта цель достигаетс обработкой реакционной массы после окончани цесса сополимериэации аминами или носпиртами. Пример. Состав исходной п лимериэационной эмульсии, ве.ч.: Хлоропрен Метакрилова кислота Дипроксид Додецилсульфат натри Перекись водорода (25%-ный раствор)0,5 Вода115 Температура полимеризации . пень превращени мономеров в пор 96%; рН 3, После проведени процесса полимеации латекс стабилизуют водной диссией неозона Д и нейтрализуют им-либо аминоспиртом (например, оэтаноламином) до рН 7. Затем имер из латекса вьщел ют методом ораживани . Ленту сушат в лабораной сушилке. Свойства полимера. Пластичность по Каррэру Физико-механические показатели вулканизатов нанаполненной смеси; прочность на разрыв,кг/см относительное удлинение, % Остаточное удлинение, %This invention relates to the synthetic rubber industry. A known method for the preparation of carboxyl-containing chloroprene rubber is an aqueous emulsion copolymerization chloroprene with methacrylic acid in an acidic medium using known emulsifiers, regulators and radical initiators. The purpose of the invention is the development of carboxyl-containing chloropropylene rubber with increased stability and resistance to flow storing during storage. This goal is achieved by treating the reaction mass after the termination of the copolymerization process with amines or nospirit. Example. The composition of the initial emulsion emulsion, fan.h .: Chloroprene Methacrylic acid Diproxide sodium dodecyl sulfate Hydrogen peroxide (25% solution) 0.5 Water 115 Polymerization temperature. stump of monomer conversion to 96% pores; pH 3 After the polymerization process, the latex is stabilized with an aqueous dissolution of neozone D and neutralized with an amino alcohol (e.g., ethanolamine) to pH 7. Then the latex measure is prepared using an orage method. The tape is dried in a laboratory dryer. Polymer properties. Carrère Plasticity Physico-mechanical properties of filler mixture vulcanizates; tensile strength, kg / cm elongation,% Residual elongation,%
Свойства кле типа 88, изготовленного на основе этого каучука.The properties of glue type 88, made on the basis of this rubber.
В зкость по прибору ВЗ-1, сVZ-1 instrument viscosity, s
Прочность склеивани резины с металлом , кг/см Сопротивление отслаиванию , кг/см Скорость отслаивани , см/минBonding strength of rubber with metal, kg / cm Peeling resistance, kg / cm Peeling rate, cm / min
при 70°Сat 70 ° C
при at
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU67988944A SU478513A1 (en) | 1967-11-20 | 1967-11-20 | Method of preparing carboxyl-containing chloroprene rubber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU67988944A SU478513A1 (en) | 1967-11-20 | 1967-11-20 | Method of preparing carboxyl-containing chloroprene rubber |
Publications (1)
Publication Number | Publication Date |
---|---|
SU478513A1 true SU478513A1 (en) | 1980-10-23 |
Family
ID=20438438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU67988944A SU478513A1 (en) | 1967-11-20 | 1967-11-20 | Method of preparing carboxyl-containing chloroprene rubber |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU478513A1 (en) |
-
1967
- 1967-11-20 SU SU67988944A patent/SU478513A1/en active
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