Pressed board for panels in security and fire doors
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The invention relates to a pressed panel for panels in security and fire doors， which comprises a compressed and hardened thermal insulation core (3) formed from chips of agricultural crop stalks in a thickness ranging from 20 mm to 50 mm. At least one fabric (2) of basalt， glass or carbon microfibers with a mesh size of 10 mm to 30 mm is arranged in the thickness and / or on at least one surface of the thermal insulation core (3). At least one surface of the thermal insulation core (3) is terminated by a geopolymer layer (1) with a specific weight of from 250 kg.m to 600 kg.m in a thickness from 5 mm to 15 mm. The thermal insulation core (3) contains 80% by weight to 95% by weight of chips from crop stalks and 5% by weight to 20% by weight of a binder based on a urea-formaldehyde adhesive mixture. In a preferred embodiment of the pressed board， the geopolymer layer (1) is foamed. The specific weight of the pressed plate is in the range from 500 kg.m to 750 kg.m.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
