By P. Deepalekshmi, P. M. Visakh, Aji. P. Mathew, Arup K. Chandra (auth.), P. M. Visakh, Sabu Thomas, Arup K. Chandra, Aji. P. Mathew (eds.)
This is the 1st quantity of a two-volume paintings which summarizes in an edited structure and in a pretty accomplished demeanour a few of the fresh technical study accomplishments within the zone of Elastomers. “Advances in Elastomers” discusses a number of the makes an attempt pronounced on fixing those difficulties from the viewpoint of the chemistry and the constitution of elastomers, highlighting the drawbacks and benefits of every approach. It summarize the significance of elastomers and their multiphase platforms in human lifestyles and undefined, and covers the entire themes on the topic of fresh advances in elastomers, their blends, IPNs, composites and nanocomposites.
This first quantity specializes in advances at the blends and interpenetrating networks (IPNs) of elastomers.
Read or Download Advances in Elastomers I: Blends and Interpenetrating Networks PDF
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Extra resources for Advances in Elastomers I: Blends and Interpenetrating Networks
The main types and their significance are narrated hereafter. 1 Butyl Rubber Poly (isobutene-co-isoprene) rubber generally known as butyl rubber typically contains about 98 % polyisobutylene and 2 % isoprene polymer chains distributed in a random way. The structure is shown in Fig. 1a. It has several unique properties; the most important being the superior gas impermeability and mechanical damping properties. It is the best sealant of all the known rubbers. The major application of butyl rubber in the lining of tyres (low permeability) comes from the Special Purpose Elastomers 49 Fig.
The selection and ratios of the proper fillers, processing aids, stabilizers, and curatives also play critical roles in compound processing and the end product behaviour . Elemental sulphur and organic accelerators are widely used to cross-link poly (isobutylene-co-isoprene). The low level of unsaturation requires aggressive accelerators such as thiuram or thiocarbamates. The usually used curing agents are given in Table 1. As illustrated in Fig. 2, the vulcanization reaction starts at the isoprene site with the polysulfidic cross links attached at the allylic positions and displaces the allylic hydrogen.
Handbook of Thermoplastic Elastomer, pp. 179–190. William Andrew Publishing, New York (2007). (Chapter 6) 30. : A novel thermoplastic elastomer based on dynamically vulcanized polypropylene/acrylic rubber blends. eXPRESS Polym. Lett. 2, 602–613 (2008) 31. A. : Dynamic vulcanization of PVC/NBR blends. In: Proceedings of the Polymer Processing Society 24th Annual Meeting, 2008 32. : Dynamic vulcanization an accessible way to thermoplastic elastomers. Iran. J. Polym Sci. Technol. 2, 3–11 (1993) 33.
Advances in Elastomers I: Blends and Interpenetrating Networks by P. Deepalekshmi, P. M. Visakh, Aji. P. Mathew, Arup K. Chandra (auth.), P. M. Visakh, Sabu Thomas, Arup K. Chandra, Aji. P. Mathew (eds.)