determination of accelerators and antioxidants in vulcanized

determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized

ANALYTICA CHIMICA ACTA ELSEVIER Analytica Chimica Acta 353 (1997) 351-358 Determination of accelerators and antioxidants in vulcanized rubber by fourier transform infrared spectrophotometry M. Blanco*, J. Coello, H. Iturriaga, S. Maspoch, E. Bertran Departament de Quimica, Unitat de Quimica Analitica, Facultat de Ciències, Universität Aulônoma de Barcelona, E-08193 Bellaterra, Spain

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determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized rubber by fourier transform infrared spectrophotometry

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determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized

In this work, we developed a new method for the determination of vulcanization accelerators and antioxidants based on Fourier Transform Infrared spectra of the CCl4 extracts of vulcanized rubber specimens.

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determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized

Determination of accelerators and antioxidants in vulcanized rubber by FT-IR spectrophotometry M. Blanco, J. Coello , H. Iturriaga , S. Maspoch , E. Bertran Department of Chemistry

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analysis of accelerators and antioxidants | rubber chemistry

Analysis of Accelerators and Antioxidants | Rubber Chemistry

For many years the identification of accelerators and antioxidants in vulcanized rubbers was attempted by the application of color reactions directly to the solvent extract of the rubber. Unfortunately very few of the reactions were specific for one compound and they were frequently masked by other colored compounds in the extract.

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deepdyve - unlimited access to peer-reviewed journals

DeepDyve - Unlimited Access to Peer-Reviewed Journals

DeepDyve is the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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accelerators and antioxidants for rubber compounds | caldic

Accelerators and Antioxidants for rubber compounds | Caldic

Antioxidants: protect your rubber compounds. Vulcanized rubber goods have the need, more or less marked, to be protected from the effect of external factors that can accelerate aging. These factors are of various kinds: oxidative agents (eg oxygen), agents that speed up oxidative processes (such as heavy metals), ozone, UV rays, heat

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distributed by - dtic

DISTRIBUTED BY - DTIC

THE DETERMINATION OF ANTIOXIDANTS IN VULCANIZED RUBBER G. M. Solodova, A. I. falyshev, and Ye. Ye. Rostovtseva Antioxidants are added to unvulcanized and vulcanized rubber in order to protect them from the effect of the x:•.':.en of the air and from ozone [I].Y The most varied combinations of antlox~dants

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vulcanization & accelerators

Vulcanization & Accelerators

The basic accelerators such as Guanidines, Thiurams, are used as Secondary and Dithiocarbamates etc accelerators to activate the primary accelerators. The use of secondary accelerators increases the speed of vulcanization substantially but at the expense of scorch safety. The dosages of the secondary accelerators are

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determination of vulcanization rate constant, crosslink

Determination of vulcanization rate constant, crosslink

Antilux 654 A and TMQ as antioxidants, paraffin-ic oil as a softener, zinc oxide (ZnO) Ex Indoxide, and stearic acid Aflux 42M as activators, tetra methyl thiuram disulfide (TMTD) and mercapto benzo thiazole (MBT) as accelerators, and sulfur Ex Miwon as the agent of vulcanization. Free sul-fur determination used sodium sulphite, paraffinic

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iso 10398:1998(en), rubber ? identification of accelerators

ISO 10398:1998(en), Rubber ? Identification of accelerators

1.6 The separation of accelerator compounds from unvulcanized compounds is relatively straightforward whereas separation from vulcanized compounds is difficult due to the lesser ability of solvents to penetrate the vulcanized matrix. 1.7 Some compounding ingredients may interfere with method B. In such cases methods A or C shall be used.

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application of paper chromatography to the identification of

Application of paper chromatography to the identification of

J. W. H. Zijp, Quantitative determination of antioxidants, after a chromatographic separation on completely acetylated filter paper. I. Determination of phenyl‐1‐naphthylamine and of phenyl‐2‐naphthylamine, Recueil des Travaux Chimiques des Pays-Bas, 10.1002/recl.19570760407, 76, 4, (313-316), (2010).

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an alternative antioxidant for sulfur-vulcanized natural

An alternative antioxidant for sulfur-vulcanized natural

Using various antioxidants during compounding is a common way to improve the aging resistance of NR. The most widespread used antioxidants are phenolic and amine-based synthetic antioxidants and 2,2,4-trimethyl-1,2-dihydroquinoline in rubber industry.

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color reactions of amine antioxidants | analytical chemistry

Color Reactions of Amine Antioxidants | Analytical Chemistry

This article is cited by 16 publications. Youngjin Kim, Dongho Koo, Seongmin Ha, Sung Chul Jung, Taeeun Yim, Hanseul Kim, Seung Kyo Oh, Dong-Min Kim, Aram Choi, Yongku Kang, Kyoung Han Ryu, Minchul Jang, Young-Kyu Han, Seung M. Oh, Kyu Tae Lee.

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preparation of papers in a two-column format for the ieee

Preparation of Papers in a Two-Column Format for the IEEE

“Determination of accelerators and antioxidants in vulcanized rubber by fourier transform infrared spectrophotometry.” Anal. Chim. Acta. 1997. 353(2-3): 351–358. 10.1016/S0003-2670(97)87797-5. 24.

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application of paper chromatography to the identification of

Application of Paper Chromatography to the Identification of

A detailed procedure is given for the identification of accelerators and antioxidants in rubber mixes and vulcanizates of unknown composition. Discover the world's research 20+ million members

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(pdf) an alternative antioxidant for sulfur-vulcanized

(PDF) An alternative antioxidant for sulfur-vulcanized

An alternative antioxidant for sulfur-vulcanized natural rubber: Henna Sharma K, Goyal J, et al. Determination of lawsone content in leaves of Lawsonia and aging behavior of the blends

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chromatography of rubber accelerators and anti-oxidants on

Chromatography of Rubber Accelerators and Anti-Oxidants on

THE chromatographic separation on alumina columns of certain constituents from the acetone extracts of vulcanized rubbers has been reported by Bellamy and co-workers1 and by Mann2. As an adsorbent

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determination of vulcanization rate constant, crosslink

Determination of vulcanization rate constant, crosslink

Antilux 654 A and TMQ as antioxidants, paraffin-ic oil as a softener, zinc oxide (ZnO) Ex Indoxide, and stearic acid Aflux 42M as activators, tetra methyl thiuram disulfide (TMTD) and mercapto benzo thiazole (MBT) as accelerators, and sulfur Ex Miwon as the agent of vulcanization. Free sul-fur determination used sodium sulphite, paraffinic

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rubber additives zmbt the vulcanized rubber processed by this

rubber additives zmbt the vulcanized rubber processed by this

using for car industryrubber antioxidant 6ppd(4020) 793-24-8 | Supply Rubber Accelerators And Water Treatment Chemicals. Santoflex 6PPD provides powerful antiozonant and antioxidant properties with excellent high temperature, fatigue and flex resistance to rubber compounds.

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rubber and plastic materials characterization using micro

Rubber and Plastic Materials Characterization Using Micro

A-9 Determination of Fatty Acids in Vulcanized SBR Rubber Using Reactive Pyrolysis-GC/MS B. Plastics B-10 Determination of Phthalates in PVC by Thermal Desorption GC/MS-Part 2 B-11 Effects of Thermal Desorption Temperature for Phthalates in PVC B-12 Differentiation of DOTP and DNOP B-13 Antioxidants (Irganox 1076 and Irganox 1010) In

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understanding the composition of a nitrile (buna-n) rubber

Understanding the Composition of a Nitrile (Buna-N) Rubber

It also is well known as Buna-N. This name came from one of the first base polymers patented in 1934, therefore people commonly use this name for all classes for Nitrile to this day. NBR is the polymerization of Acrylonitrile (CH 2=CHCN) and Butadiene (CH2CH-CH=CH2) into one large multiple-unit chains. The amount of Acrylonitrile is varied to

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vulcanization - an overview | sciencedirect topics

Vulcanization - an overview | ScienceDirect Topics

Vulcanization. Vulcanization is a chemical process in which the rubber is heated with sulphur, accelerator and activator at 140–160°C. The process involves the formation of cross-links between long rubber molecules so as to achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.

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