| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize the easy separation of rubber from metal by a method wherein the surface of a metal member, to which the rubber is joined through a primer, is heated at the specified temperature for the specified period of time. SOLUTION: A metal member is prepared by rinsing a stainless steel plate with toluene and then applying primer on the surface of the stainless steel plate and finally drying the applied primer for almost one hour at room temperature. On the other hand, silicone rubber compound added with peroxide type vulcanizer is kneaded with mixing rolls and then prepared with twin rolls into a rubber sheet. Then, the resultant rubber sheet 15 is joined to the surface coated with the primer 14 of the stainless steel plate 12 by pressurizing for about 5min at 180 deg.C so as to obtain a silicon rubber/metal composite. Next, the stainless steel plate 12 portion of this composite is placed on a hot plate 11 for heating the portion. Under the condition that the heating temperature is set to be within the range of 380-520 deg.C and the heating time is set to be 1min or less, favorable separation can be realized.</p> |
