木质原料和阻燃剂对刨花板性能的影响

分析了5种不同阻燃剂(FR-A、FR-B、FR-C、FR-D、FR-E)、阻燃剂添加量(6%、8%、10%、12%)以及2种不同木质原料(木材刨花和工业大麻秆)对刨花板物理力学性能和燃烧性能的影响。结果表明:阻燃剂对板材的物理力学性能可产生不利影响,但随着阻燃剂添加量的增加,板材的氧指数增加,烟密度等级变小; 工业大麻秆刨花板的氧指数和烟密度等级均小于木材刨花板。试验表明,阻燃剂FR-A和FR-B适合用于制备工业大麻秆阻燃刨花板,阻燃剂FR-C、FR-D和FR-E适合用于制备木材阻燃刨花板,即木质原料的物理结构以及阻燃剂化学成分对刨花板的物理力学性能和燃烧性能影响较大。

Influence of wooden materials and inflaming retarding agents on the properties of particleboard panel

To confirm the influence of different wooden materials and inflaming retarding agents on the properties of particleboard panel and manufacture the fire-retarding particleboard panel with better properties for reducing the harm due to the fire indoor. Influences of five kinds of fire-retarding agents(FR-A, FR-B, FR-C, FR-D and FR-E)and their different added amount(6%, 8%, 10% and 12%)and two kinds of wooden materials(wooden particles and hemp-shiv particles)on the physical properties, mechanical properties and inflaming properties of the particleboard panels were investigated to provide the information for manufacturing particle board panels with better inflaming retarding properties. The results showed that the fire-retarding agents, additive amount and wooden materials all had great influences on the physical, mechanical and inflaming properties of particle board panels. The fire-retarding agents had disadvantageous influence on the physical and mechanical properties of particle panels and those were worse with the additive amount of fire-retarding agents increasing from 6% to 12%. Besides, as the additive amount of fire-retarding agents increased, the oxygen index(OI)increased and the smoking density grade(SDR)reduced, furthermore the OI and SDR of hemp-shiv based particle panels were lower than those of wood based particle panels. Besides, the FR-A and FR-B of fire-retarding agents were good to make inflaming retardant hemp shiv-based particle board panels while the FR-C, FR-D and FR-E of fire-retarding agents were good to make inflaming retardant wood-based particle board panels. In a word, the physical, mechanical and inflaming retardant properties of particle board were mainly depended on the characters of raw materials and fire-retarding agents and it should be studied furthermore in future.