SU666174A1 - N,n'-di/3(5)-methyl pyrazolyl methylene-1/ thiourea as activator of salt vulcanization of rubber obtained on the base of butadiene and its compounds, containing ester unsaturated groups - Google Patents

N,n'-di/3(5)-methyl pyrazolyl methylene-1/ thiourea as activator of salt vulcanization of rubber obtained on the base of butadiene and its compounds, containing ester unsaturated groups

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Publication number
SU666174A1
SU666174A1 SU772565904A SU2565904A SU666174A1 SU 666174 A1 SU666174 A1 SU 666174A1 SU 772565904 A SU772565904 A SU 772565904A SU 2565904 A SU2565904 A SU 2565904A SU 666174 A1 SU666174 A1 SU 666174A1
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SU
USSR - Soviet Union
Prior art keywords
rubber
butadiene
vulkazon
salt
vulcanization
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Application number
SU772565904A
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Russian (ru)
Inventor
Зоя Борисовна Киро
Леонид Александрович Скрипко
Лилия Борисовна Симаненкова
Ирина Борисовна Манелюк
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Предприятие П/Я А-7253
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Priority to SU772565904A priority Critical patent/SU666174A1/en
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Publication of SU666174A1 publication Critical patent/SU666174A1/en

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Вычислено, %: С 50,0; И 6,06; Л31,82; 512,12. Провод т испытани  Вулкээона-4 в качестве ускорител  солевой вулканиэапии резиновых смесей на основе каучука марки БЭФ-10и (каучук, выполненный на ос нове бутадиена и соединений, содержащих сложноэфирные ненасыщенные группировки Дл  сравнени  берут вулканизаты, содержащие вулканизующую композицию, масс.ч.: гидроокись кальци  10, гипс 5,0 сера 1,0, сульфенамид Ц 0,7, окись цинка 2,0 ивулканиааты, содержащие, масс.ч.: гидроокись кальци  10, гипс 5,0.Гидроокись кальци  и гипс ввод т дл  получени  солевых поперечных св зей, а серу и сульфенамид Ц дл  получени  ковалентнь х поперечных св зей. Однако известные вулканизующие композиции не обеспечивают нужной скорости вулканизации. Вулказон-4 ввод т в смесь в количест ве 5,0 вес.ч. с расчетом на то, чтобы все сложноэфирные группировки полимера прин ли участие в образовании поперечных св зей. Смеси, содержащие, масс.ч.: 100, гидроокись кальци  1О,0, сажа 30,0, стеарин 5,0, вулканизующа  композици  (дозировка указана выще), вальцуют на лабораторных вальцах. Вулка низацию пластин провод т в прессе при 16О°С в оптимуме. Физик о-механические свойства вулканизатов оценивают по ГОСТ 27О-64, а количество образующихс  поперечных св зей - по степени равновесного набухани  в бензоле и в бензоле с добавлением 5% уксусной кислоты. На реометре Монсанто определ ют ско росгь структурировани  и оптимум вулканизации . При введении Вулказона-4 ускор етс  образование солевых поперечных св зей и сокращаетс  оптимальное врем  вулканизации смесей в прессе, вследсгвиэ чего увеличиваетс  съем изделий с единицы вулканизационного оборудовани  и по  вл етс  возможность применени  каучук ВЭФ-10и в композиции с полиизопреном. Вулказон-4 в большей степени активирует структурирование каучука БЭФ-10и, чем триэтаноламин, сульфенамид Ц и альтакс . Так, скорость структурировани  смесей с Вулказоном-4 в 1,87, 1,53 и 1,07 раза больше, чем скорость структурировани  смесей с триэтаноламином, альтаксом и сульфенамидом Ц соответственно. Резины, полученные с использованием Вулказона-4, обладают высокими физикомеханическими свойствами. Таким образом, Вулказон-4  вл етс  эффективным активатором солевой вулканизации каучука, выполненного на основе бутадиена и соединений, содержащих сложноэфирные ненасыщенные группировки. Формула изобретени  N ,Л/ -Ди- З (5)-метилпиразолилмети- лен-1 -тиомочевина формулы , СНч , Г -«J №-СН,-НН-С - NH-CH ./ II в качестве активатора солевой вулканизации каучука, выполненного на основе бутадиена и соединений, Ъодержащих сложноэфирные ненасыщенные группировки. Источники информации, прин тые во внимание при экспертизе 1. Труды АН Литовской ССР, 197О, Б, NO 1 (60)., 129-135.Calculated,%: C 50.0; And 6.06; L31.82; 512.12. Volcaeon-4 is tested as a salt volcanic accelerator of rubber compounds based on BEF-10i rubber (rubber made on the basis of butadiene and compounds containing ester unsaturated groups) For comparison, vulcanizates containing a vulcanizing composition are used, mass: hydroxide Calcium 10, gypsum 5.0 sulfur 1.0, sulfenamide C 0.7, zinc oxide 2.0 ivans, containing, by weight: calcium hydroxide 10, gypsum 5.0. Calcium hydroxide and gypsum are added to obtain saline cross links, and sulfur and sulfenamide C for n covalent cross-linking. However, known curative compositions do not provide the desired cure rate. Volcazone-4 is introduced into the mixture in an amount of 5.0 parts by weight with the expectation that all ester groups of the polymer take part in the formation of transverse Blends containing, by mass, h: 100, calcium hydroxide 1 O, 0, carbon black 30.0, stearin 5.0, curing composition (dosage is indicated higher), roll on a laboratory roll mill. Vulcation of the plates is carried out in a press at 16 ° C at an optimum. The physicist describes the o-mechanical properties of vulcanizates according to GOST 27O-64, and the number of cross-links formed is determined by the degree of equilibrium swelling in benzene and in benzene with the addition of 5% acetic acid. Structure structuring and optimum vulcanization are determined on the Monsanto rheometer. With the introduction of Vulkazon-4, the formation of salt cross-links is accelerated and the optimum curing time of the mixtures in the press is shortened, as a result of which the removal of products from the unit of vulcanization equipment increases and the use of VEF-10i rubber in the composition with polyisoprene appears. Vulkazon-4 to a greater extent activates the structuring of BEF-10i rubber than triethanolamine, sulfenamide C and altax. Thus, the rate of structuring mixtures with Vulkazon-4 is 1.87, 1.53, and 1.07 times greater than the rate of structuring mixtures with triethanolamine, altax and sulfenamide C, respectively. The rubbers obtained with the use of Vulkazon-4 have high physical and mechanical properties. Thus, Vulkazon-4 is an effective activator of salt vulcanization of rubber, made on the basis of butadiene and compounds containing ester unsaturated groups. Claim N, L / -Di-3 (5) -methyl pyrazolylmethylene-1-thiourea of the formula, CH, G - "J No-CH, -HH-C - NH-CH. / II as rubber salt vulcanization activator based on butadiene and compounds containing unsaturated ester groups. Sources of information taken into account in the examination 1. Proceedings of the Academy of Sciences of the Lithuanian SSR, 197O, B, NO 1 (60)., 129-135.
SU772565904A 1977-11-21 1977-11-21 N,n'-di/3(5)-methyl pyrazolyl methylene-1/ thiourea as activator of salt vulcanization of rubber obtained on the base of butadiene and its compounds, containing ester unsaturated groups SU666174A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772565904A SU666174A1 (en) 1977-11-21 1977-11-21 N,n'-di/3(5)-methyl pyrazolyl methylene-1/ thiourea as activator of salt vulcanization of rubber obtained on the base of butadiene and its compounds, containing ester unsaturated groups

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Application Number Priority Date Filing Date Title
SU772565904A SU666174A1 (en) 1977-11-21 1977-11-21 N,n'-di/3(5)-methyl pyrazolyl methylene-1/ thiourea as activator of salt vulcanization of rubber obtained on the base of butadiene and its compounds, containing ester unsaturated groups

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SU666174A1 true SU666174A1 (en) 1979-06-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035509A1 (en) 2003-09-18 2005-04-21 Skw Stickstoffwerke Piesteritz Gmbh 1h-azolyl-methyl-amides, method for the production thereof and use thereof as nitrification inhibitors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035509A1 (en) 2003-09-18 2005-04-21 Skw Stickstoffwerke Piesteritz Gmbh 1h-azolyl-methyl-amides, method for the production thereof and use thereof as nitrification inhibitors

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