Wood products are often treated by different techniques to improve their longevity when used as building materials. Most of the time, the goal is to increase their resistance to weathering effects, deformations in material dimensions or biotic decomposition. These wood treatment techniques have a significant impact on pyrolysis and burning behavior. The general effects of three different common wood treatments on flame retardancy were investigated by comparing treated woods with their untreated counterparts and with other kinds of wood. While the acetylation of beech leads to a slightly increased fire hazard, the thermal treatment of wood and crosslinking of cellulose microfibrils dimethyloldihydroxy-ethyleneurea show a limited flame retarding effect. Switching to woods with a higher lignin content, and thus higher char yield, however, results in a more pronounced improvement in flame retardancy performance. This article delivers a comprehensive and balanced assessment of the general impact of different wood modifications on the fire behavior. Further, it is a valuable benchmark for assessing the flame retardancy effect of other wood modifications.

中文翻译：

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N-羟甲基交联、热处理和乙酰化改性木材的防火性能评估

木制品用作建筑材料时，通常采用不同的技术进行处理，以提高其使用寿命。大多数时候，目标是提高它们对风化效应、材料尺寸变形或生物分解的抵抗力。这些木材处理技术对热解和燃烧行为有重大影响。通过比较处理过的木材与未处理的对应物以及其他种类的木材，研究了三种不同的常见木材处理对阻燃性的一般影响。虽然山毛榉的乙酰化导致火灾危险略有增加，但木材的热处理和纤维素微纤维二羟甲基二羟基乙烯脲的交联显示出有限的阻燃效果。然而，改用木质素含量更高的木材，因此炭产量更高，导致阻燃性能的更显着改善。本文对不同木材改性对防火行为的一般影响进行了全面而平衡的评估。此外，它是评估其他木材改性的阻燃效果的宝贵基准。