Electron beam processing of nylon 6 and hydrogenated nitrile rubber (HNBR) blends: 1. Development of high strength heat‐ and oil‐resistant thermoplastic elastomers

Das, PK; Ambatkar, SU; Sarma, K.S.S.; Sabharwal, S.; Banerji,

doi:10.1002/pi.1928

Cited by 18 publications

(13 citation statements)

References 14 publications

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“…And in most cases, HNBR was used by blending with other elastomers such as FKM 5, 6. IR,7 NR,8 Nylon6,9, 10 and so on. At the same time some fillers like ZDMA,11 OMMT,12, 13 MWCNT,6, 14 were also incorporated to improve the properties, And yet HNBR filled with silica is few researched.…”

Section: Introductionmentioning

confidence: 99%

Some interesting phenomena in silica‐filled HNBR with the addition of silane coupling agent

Tian

Zhang

2011

J of Applied Polymer Sci

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Hydrogenated nitrile rubber (HNBR)/silica nanocomposites were prepared by in-situ modification dispersion technology, and the silane coupling agent c-methacryloxypropyl trimethoxy silane (KH570) was chosen to promote the interfacial strength between silica particles and HNBR matrix and further improve the dispersion of silica particles. Rubber Process Analyzer (RPA2000) was used to test the Payne effect of HNBR/silica compounds, from which some interesting phenomena were found: the Payne effect became stronger after KH570 was added to HNBR/ silica compound at room temperature, which was a contrary result compared to SBR/silica system. However, after stored for a month at room temperature, the Payne effect weakened, which was contrary to the traditional phenomenon of storage hardening of filled rubber. All these results are related to filler-filler interaction and filler-rubber interaction. The modulus at small strain amplitude of HNBR/ silica compound with KH570 gradually decreased with the increase of times of circulatory strain sweep but that of compound without KH570 had almost no change, which was explained by Fourier Transform Infrared (FTIR) results that the reaction between silica and KH570 almost completed at the test condition: 80 C and about 1 h. The effects of silane amount, heat-treated temperature and time on the Payne effect of compounds and the mechanical properties of vulcanizates were also investigated. V C 2011 Wiley Periodicals, Inc. J Appl Polym Sci 124: [927][928][929][930][931][932][933][934] 2012

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Section: Introductionmentioning

confidence: 99%

Some interesting phenomena in silica‐filled HNBR with the addition of silane coupling agent

Tian

Zhang

2011

J of Applied Polymer Sci

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“…Electron‐beam processing and the changes in various technical properties of different polymer blends have also been investigated 21–25. The effect of the size of the dispersed NBR phase in poly(vinyl chloride) (PVC)/NBR blends on the stability of PVC to electron radiation has been studied by Li and Chan,26 where it was found that the compatibility increases when the average size of rubber‐rich domains is smaller.…”

Section: Introductionmentioning

confidence: 99%

Exploring the simultaneous effect of nano‐silica reinforcement and electron‐beam irradiation on a model LDPE/EVA‐based TPE system

Hui

Chaki

Chattopadhyay

2009

Polymer International

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BACKGROUND: The technical properties of polyolefinic thermoplastic elastomer (TPE) systems can be modified significantly using fillers like nano-silica. Controlled irradiation can potentially be an effective way of tailoring the technical properties of such nano-silica-filled TPE systems. RESULTS: The effect of controlled electron-beam irradiation on the properties of a pristine silica nanoparticle-filled model low-density polyethylene/ethylene-(vinyl acetate) (LDPE/EVA) TPE system is explored in this paper. The morphology of such a filled system was investigated using scanning electron microscopy (SEM) and field-emission SEM. The dispersion of silica particles was analysed using transmission electron microscopy which clearly indicates that at low loading a fine dispersion of silica occurs in the polymer matrix. Swelling studies and Fourier transform infrared analyses indicate the occurrence of a favourable EVA-silica interaction. On the whole, it is observed that electron-beam irradiation induces a high degree ofreinforcement in all the silica-filled samples through interfacial crosslinking as well as controlled crosslinking in the two polymer phases. In a few samples the processing characteristics are remarkably preserved following concurrent nano-silica reinforcement and irradiation, while the technical properties of TPE systems, including set, solvent swelling and mechanical properties, are improved. However, the improvement in properties is a strong function of sequence of addition of filler in the LDPE/EVA blends. CONCLUSION:The green technique studied can be potentially extended for the improvement of the technical properties of conventional TPE systems.

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“…The toughening of PAs via melt compounding with various rubbers (e.g., ethylene-propylene copolymer, ethylene-propylene-dieneterpolymer, styrene-ethylene/butadiene-styrene-with and without various functional groups for improved compatibility with PA) is recognized as a state-of-the-art procedure [10][11][12]. In fact, HNBR is the preferred component for temperature-and oil-resistant thermoplastic elastomers of the blend type, which often contain PAs [14,15]. In fact, HNBR is the preferred component for temperature-and oil-resistant thermoplastic elastomers of the blend type, which often contain PAs [14,15].…”

Section: Polymer Toughnessmentioning

confidence: 99%

Thermomechanical Analysis and Processing of Polymer Blends

Siengchin

2014

Characterization of Polymer Blends

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IntroductionCombinations of standard polymers can help in the development of new materials; indeed, the blending of polymers represents a technological approach to providing materials with a full set of desirable and specific properties. During the past few decades there has been a growing interest in polymer blends for the following reasons:The quest for new materials. The successful use of these blends in the automotive industry and various other engineering applications. Improved processing capabilities, product uniformity, and the ability to make quick changes to the formulations.The reasonable performances of polymer blends has attracted economic interest in a variety of industries. The method by which polymer blends are characterized is very important from the point of their utility and added value. Such characterization may also help to provide an understanding of the behavior of any new materials developed using these polymers, including polymer blends. The characterization of polymer blends is also very important if the user industries need to define suitable quality aspects in order to obtain products that are of consistent quality. This would be especially important when the quality criteria depend on the proposed application of the blend. A careful examination of the various properties of a polymer blend not only provides details of its chemical composition and constituents, but would also be valuable for predicting the types of possible application. Knowledge of the blend structure and of its observed properties would also be helpful when developing appropriate modifications of polymer blends for various applications. Accordingly, the main aim of this chapter is to provide a systematic examination of the toughness characteristics of polymer blends, using novel methods. Additional aims are to show that the concepts of latex and online 393

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Electron beam processing of nylon 6 and hydrogenated nitrile rubber (HNBR) blends: 1. Development of high strength heat‐ and oil‐resistant thermoplastic elastomers

Cited by 18 publications

References 14 publications

Some interesting phenomena in silica‐filled HNBR with the addition of silane coupling agent

Some interesting phenomena in silica‐filled HNBR with the addition of silane coupling agent

Exploring the simultaneous effect of nano‐silica reinforcement and electron‐beam irradiation on a model LDPE/EVA‐based TPE system

Thermomechanical Analysis and Processing of Polymer Blends

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