主权项 |
1. Greenhouse arrangement comprising
a framework (1) and a system for thermicity improvement (2), which comprises at least one
film spread over and/or connected directly and/or indirectly to the framework
comprising an additive suitable for enhancing the thermicity of the film, wherein said additive comprises an alkyl phosphonic acid or derivatives thereof,wherein said film has a transmission of IR of lower than 40%, especially lower than 25%. |