Study of Influence of Copolymer Vinyl Chloride and Vinyl Acetate on the Properties of Butadiene Nitrile Rubber

Abstract 1. The authors investigate the graft copolymerization of vinyl chloride and butadiene-nitrile rubber by a chain transfer reaction, and also the combined mastication of PVC with various rubbers at elevated temperatures. 2. In physicomechanical properties Viniplasts produced on the basis of the products of graft copolymerization of vinyl chloride with butadiene-nitrile rubber, and also of the modification of PVC by butadiene, isoprene and natural rubbers are not superior to the corresponding characteristics of ordinary Viniplast. 3. In the combined mastication of PVC with Nairit and of PVC with butadiene-nitrile rubber at elevated temperatures compositions are produced which in respect of impact strength are 2 to 4 times superior to Viniplast from PVC. 4. It is suggested that the improvement in the physicomechanical properties in the combination of PVC with SKN-26 is connected with the formation of hydrogen bonds between the molecules of the polymers in question.

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Phenolic vulcanization of butadiene nitrile rubber. 1. Investigation of mechanism of vulcanization by infrared spectroscopy

Polymer materials and technologies ◽

10.32864/polymmattech-2017-3-2-64-69 ◽

2017 ◽

Vol 3 (2) ◽

pp. 64-69

Author(s):

A. A. Sementouskaya

Keyword(s):

Infrared Spectroscopy ◽

Nitrile Rubber ◽

Butadiene Nitrile Rubber

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Bonding strength improvement of adhesives based on butadiene-nitrile rubber and chlorinated rubber blends with metal chelates

Adhesives Sealants Technologias ◽

10.31044/1813-7008-2019-0-6-2-8 ◽

2019 ◽

pp. 2-8

Author(s):

A.K. Alekhin ◽

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L.R. Lyusova ◽

U.A. Naumova ◽

S.V. Kotova ◽

...

Keyword(s):

Bonding Strength ◽

Metal Chelates ◽

Nitrile Rubber ◽

Rubber Blends ◽

Butadiene Nitrile Rubber ◽

Strength Improvement

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Research changes in the properties of butadiene-nitrile rubber under various aging conditions

Journal of Elastomers & Plastics ◽

10.1177/00952443211029036 ◽

2021 ◽

pp. 009524432110290

Author(s):

Mariya L Davydova ◽

Aytalina F Fedorova

Keyword(s):

Accelerated Aging ◽

Physical And Mechanical Properties ◽

Exposure Period ◽

Climatic Conditions ◽

Nitrile Rubber ◽

Sterically Hindered Phenols ◽

Loading Mode ◽

Hindered Phenols ◽

The Republic ◽

Butadiene Nitrile Rubber

This article represents the results of a study of changes in the properties of vulcanizates based on BNR-18 butadiene-nitrile rubber containing as stabilizers the experimental spatially hindered phenols Stafen, CO3, CO4, and industrial antioxidant 6PPD, after accelerated aging (100°C 96 h) and aging under full-scale exposure in extreme climatic conditions of the Republic of Sakha (Yakutia) during 2 years. In winter, the air temperature reached—48°C, in summer—+36.1°C. It is shown that the experimental sterically hindered phenols more effectively under natural exposure conditions. They are characterized by the most stability in terms of strength throughout the entire exposure period. Under conditions of accelerated aging, the vulcanizate containing the industrial antioxidant 6PPD is characterized by the greatest stability of physical and mechanical properties. According to the viscoelastic characteristics obtained in the dynamic loading mode, the contribution of the presented stabilizers in maintaining resistance to temperature and deformation effects compared with unstabilized rubber is confirmed.

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