| 摘要 |
<p>Disclosed is a laminate which is provided with a rubber layer (A) and a fluororesin layer (B) that is laminated on the rubber layer (A). The rubber layer (A) is formed from a rubber composition for vulcanization, which contains an unvulcanized rubber (a1), at least one compound (a2) that is selected from among 1,8-diazabicyclo(5.4.0)undecene-7 salts, 1,5-diazabicyclo(4.3.0)nonene-5 salts, 1,8-diazabicyclo(5.4.0)undecene-7 and 1,5-diazabicyclo(4.3.0)nonene-5, MgO (a3), and silica (a4). The rubber composition for vulcanization contains the component (a2) in an amount of 1.0-5.0 parts by mass relative to 100 parts by mass of the component (a1). The fluororesin layer (B) contains a fluorine polymer composition which contains a fluorine polymer (b1) that has polymerization units derived from ethylene and TFE, and the component (b1) contains 60% by mole or more of the polymerization units derived from TFE relative to the total polymerization units and has a melting point of 200°C or more. Consequently, the laminate exhibits excellent adhesion between the rubber layer and the fluororesin layer, while having excellent chemical resistance.</p> |
