Practical Guide to Latex Technology by Rani Joseph

By Rani Joseph

Practical advisor to Latex expertise is an advent to the know-how of common rubber and artificial rubber lattices. The goal isn't to supply a totally complete textual content yet to supply an abridged model of the applied sciences used for the construction of vital latex items. Latex-based expertise types a large fraction of typical and artificial rubber expertise and an advent to the real applied sciences is useful to all working towards technical team of workers. The booklet starts with a brief background of normal rubber latex, formation within the tree and the tapping, garage and conversion of latex to marketable varieties. It discusses protection and focus of ordinary rubber latex and the main universal latex compounding components. Dipping and casting strategies are mentioned, in addition to the expertise on the topic of foams, threads and adhesives. moreover, the ebook deals an creation to big lattices reminiscent of styrene-co-butadiene rubber, acrylonitrile-co-butadiene, polychloroprene, polyvinyl chloride, and so forth. absolutely illustrated all through, with pictures from real construction websites, this sensible advisor is perfect for teachers, study and improvement managers, scholars of polymer know-how and all these operating within the latex industry.

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By this treatment, the material will be wetted properly and after ball milling will produce a satisfactory dispersion. Dispersing agents: The selection and amount of dispersing agent are determined by the physical properties of the material to be dispersed. The functions of these agents 35 Practical Guide to Latex Technology are to wet the powder, to prevent or reduce frothing and to obviate re-aggregation of the particles. The concentration of the dispersing agent should be maintained at the minimum required to produce the desired effect and need rarely exceed 2% except in special circumstances.

5 Beading The latex film is gelled in a gelling oven and then passed through edge rollers, which curl the latex film at the cuff forming a rolled bead. The beading is necessary to facilitate the gripping of the gloves when putting them on (donning). 6 Leaching Leaching is the process by which the latex film is dipped in a bath of hot water maintained at a temperature of around 80 °C. This process removes the excess chemicals in the latex film. This process is done before curing and is also called precure leaching.

M. Pillai, Transactions of the Institution of the Rubber Industry, 1965, 41, 41. C. O. R. 495. IS 5430, Ammonia Preserved Concentrated Natural Rubber Latex, 1981. IS 11001, Double Centrifuged Natural Rubber Latex, 1984. IS 13101, Natural Rubber Latex, Creamed Ammonia Preserved, 1991. IS 3708: Part 11, Methods of Test for Natural Rubber Latex – Part 11: Determination of Magnesium (Direct Titration Method) [NRL: 18], 2001. IS 3708: Part 1, Methods of Test for Natural Rubber Latex – Part 1: Determination of Dry Rubber Content, 1985.

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