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Modification of rubbers. II. Coplasticization of two-rubber mixtures in the screw extruder

E. ҆traudner and J. Beniska

Slovak Technical University, Bratislava


Abstract: cf. CA 55, 25314i. Coplasticization of pale crepe and Buna S3 and the pale crepe and Polysar, in the extruder is described. The extrudate was tested by detn. of swelling in PhNO2 and in a mixt. of C6H6 and MeCOEt, with selective pptn. and selective soly., and by detg. the amt. of gel. Coplasticization of the 2-rubber mixts. in the extruder at 35-40° gave modified rubbers. Decreasing the temp. and introducing an inert atm. have favorable effects for the modification, while nonrubher admixts. have an unfavorable effect.

Full paper in Portable Document Format: 166a431.pdf (in Slovak)


Chemical Papers 16 (6) 431–438 (1962)

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