|
contents | news | |||||||||
| Micronal PCM phase change materials from BASF  Phase change materials can absorb extreme summer heat, in this way ensuring pleasant room temperatures. This means air conditioning costs can be significantly lowered or with optimal planning eliminated completely. H+H Celcon, which manufactures aircrete products, has now incorporated BASF's Micronal PCM phase change materials into aerated cement blocks for the first time. This substantially increases the heat storage capacity of its CelBloc Plus blocks. Thanks to its porous structure, the construction material aerated cement has excellent thermal and acoustic insulating as well as fire resistant properties.Incorporating the phase change material Micronal PCM enhances the heat storage capacity of the aerated cement and hence of the structures built with it. The result is that buildings based on modern light construction principles have a significantly improved and healthier indoor climate. The blocks are recognizable by their characteristic green color, something they have another BASF product to thank for: a pigment from the Xfast brand. BASF's Micronal PCM is a microencapsulated latent heat storer that works according to the following principle: microscopically small polymer capsules containing a pure wax storage medium at their core, so-called phase-change materials, are inserted into the gypsum wall boards during production. If the room temperature exceeds the switching temperature of 26șC set during production, the wax inside the microcapsules melts and absorbs the excess heat. If on the other hand it falls, the wax becomes solid and the capsules release their heat again. The temperature differences between night and day ensure the alternating sequence of melting and solidifying. In this way, Micronal PCM helps to absorb daytime temperature peaks. Micronal PCM can also be used in other construction materials, such as plaster or gypsum wall boards, textured finishes and finishing systems and compounds. Construction materials containing BASF phase change materials are impervious to grinding, drilling and cutting. Thanks to their robustness, the microcapsules are virtually indestructible. This means that Micronal PCM-modified building materials retain their functionality for decades without having to be renewed. write your comments about the article :: © 2006 Construction News :: home page |