| 摘要 |
<p>In accordance with the invention, a refrigerator cabinet is provided with a plastic liner, the inside wall of the refrigerator, which is resistant to chemical degradation by fluorocarbons. Freon and Freon substitutes used as blowing agents for foaming the insulation, contained between an outer cabinet and an the inside wall of the refrigerator can cause blistering, cracking, and sometimes dissolution of materials used to form the plastic liner which is the inside wall of the refrigerator. The invention relates to providing such a plastic liner which is resistant to those blowing agents and particularly to those blowing agents which are partially halogenated and tend to be more aggressive than Freon. The plastic liner wall maintains impact strength and toughness after exposure to fluorohydrocarbones conventionally employed in refrigerator units for in situ polyurethane foam production.</p> |
