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摘要: |
以稻草秸秆为原料,采用正交试验设计方法,研究工艺参数(包括异氰酸酯树脂(MDI)胶黏剂、脲醛树脂(UF)胶黏剂和阻燃剂(FR)添加量)对稻草板力学性能和阻燃性能的影响,确定最佳制板工艺条件.研究表明:稻草表面碱处理对改善稻草板的胶合性能有显著作用;MDI胶黏剂添加量对稻草板弹性模量(MOE)、静曲强度(MOR)、内结合强度(IB)、2 h吸水厚度膨胀率(2 hTS)指标影响显著,而UF胶黏剂和FR添加量对该4项性能的影响较小;随着FR添加量的增加,稻草板热释放速率峰值(pk HRR)有下降趋势;最佳制板工艺条件为:MDI胶黏剂、UF胶黏剂、FR添加量分别为3%,6%,10%(质量分数). |
关键词: 稻草板 阻燃剂 力学性能 阻燃性能 |
DOI: |
分类号:TS653 |
基金项目:黑龙江省科技攻关重点项目(GB06B501-1-6);;黑龙江省政府博士后基金资助项目(520-415059) |
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Study on Manufacturing Process of Rice-Straw Based Board with Fire-Retardant |
ZHU Xiao-dong WANG Feng-hu LIU Yu SUN Jian-ping
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Abstract: |
The technical parameters of rice-straw based board were investigated.The orthogonal theories were used to analyze the effect of methylenediphenyl diisocyanate(MDI),urea-formaldehyde resin(UF) and fire-retardant(FR) content on the mechanical properties and fire retardance.Based on the analysis,the optimum technical parameters were obtained.The results show that:(1)Alkaline treatment of rice-straw interface has a significant effect on the performance of rice-straw based board.(2)Modulus of elasticity(MOE),mod... |
Key words: rice-straw based board fire-retardant(FR) mechanical property fire retardance |