Note on a new effect of chromic acid desensitizer

✍ Scribed by E.P. Wightman; S.E. Sheppard

• Book ID: 104127364
• Publisher: Elsevier Science
• Year: 1928
• Tongue: English
• Weight: 64 KB
• Volume: 206
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(28)91510-0

✦ Synopsis

THE negative charge on rubber particles corresponds to a contact potential of about 0.035 volt, and the particles have a mobility of about 2. 7 X IO -4 cm. per second. The relation n = c/k, where n is the amount of rubber transported toward the anode per unit of current, c is the concentration of rubber in the latex, and k is the total conductivity of the latex, is approximately obeyed. To avoid porous deposits caused by the evolution of oxygen at the anode, depolarizers may be • used. Fresh deposits are permeable, therefore thick coatings may be built up. Fillers, in the form of colloidal suspensions, are added to the latex, and are deposited along with the rubber.

NOTE ON A NEW EFFECT OF CHROMIC ACID DESENSITIZER.*