精品国产高清自在线看_毛片免费成人在线观看_极品美女aⅤ高清在线观看_免费看黄网址国产精品_在线精品自偷自拍无码中文_日本精品卡一卡新区_尤物视频网站动漫_丁香五月天激情婷婷亚洲综合_在线视频亚洲激情_亚洲成a人片毛片在线

Buildings using extruded board systems for cold storage construction have good thermal stability, are warm in winter and cool in summer, and are becoming more and more popular. It can also improve and improve the waterproofness and airtightness of the wall, avoiding the occurrence of condensation inside the wall.

It is an indispensable material in cold storage construction. It not only plays a role in thermal insulation, but also can absorb and buffer a small amount of water vapor condensation and reduce the formation of water droplets due to the microporous structure on the surface of the extruded board. It can be used for energy-saving transformation of high-rise buildings, multi-story buildings and old houses. Among them, the concrete or masonry exterior wall insulation engineering of civil buildings in cold areas and hot summer and cold winter areas has better effect.

Raw materials are the key factor of extruded board in cold storage construction. Extruded board is produced from polystyrene resin. But now many extruded boards on the market are made of recycled materials. Insulation of rock wool pipe insulation board and rubber plastic insulation board: Since fiber adhesive board adopts advanced cement and plant fiber structure, its thermal conductivity is almost the same as gypsum board, so its thermal insulation performance has obvious advantages.

In addition, the heat insulation effect of extruded board on cold storage has also made extruded board widely recognized. The compressive strength of extruded board of different models and thicknesses is as high as 150-500Kpa, and the impact resistance is also excellent. An important parameter of extruded board is that after absorbing water, the insulation performance of the insulation material decreases. At low temperatures, the absorbed water is easy to freeze, destroying the structure of the insulation material, thereby reducing the compressive strength and insulation performance of the board.