DPAB对中密度纤维板性能的影响  

Influence of Didecyl Polyoxyethyl Ammonium Borate(DPAB) on Properties of Medium Density Fiberboard

作　　者：王星[1] 曹金珍[1] 崔福通 

机构地区：[1]北京林业大学材料科学与技术学院,北京100083 [2]龙特高斯有限公司,德国d68305

出　　处：《西南林业大学学报（自然科学）》2013年第1期76-80,F0003,共6页Journal of Southwest Forestry University：Natural Sciences

基　　金：中央高校基金科研业务费专项(TD2011-14)资助

摘　　要：用二癸基二羟乙基硼酸铵(DPAB)与酚醛树脂胶黏剂混合制备中密度纤维板,并与未添加DPAB的酚醛树脂制备的中密度纤维板的物理力学性能和阻燃性能进行比较。结果表明:DPAB添加量低于1.2%时对中密度纤维板的静曲强度和弹性模量无显著影响,且随着添加量的增加氧指数增大,残炭量也有一定的增加,说明DPAB的添加对中密度纤维板的阻燃性能有一定的改善。由DSC分析得知,DPAB的添加使酚醛树脂固化更完全,但DPAB的亲水性使改性中密度纤维板的吸水性和吸水厚度膨胀率与未改性中密度纤维板相比有所增大。The mechanical and fire-retarding properties of medium density fiberboard （MDF） prepared by u- sing phenol formaldehyde resin mixed with didecyl polyoxyethyl ammonium borate （DPAB） were compared with MDF control without DPAB. The results showed that there was no significant effect on modulus of rupture （MOR） nor modulus of elasticity （MOE） of the MDF when the dosage of DPAB added was below 1.2%. The oxygen index as well as the residual carbon content were increased with the increment of DPAB dosage, suggesting that the addi- tion of DPAB could improve the fire retardation of MDF. Compared to MDF control, DPAB adding made the resin cure more completely according to the results of DSC analyses. However, the water uptake and swelling ratio of MDF upon water absorption were also increased with the DPAB loading due to the hydrophilic property of DPAB.

关 键 词：中密度纤维板 物理力学性能 DSC 阻燃性能 

分 类 号：S785[农业科学—林学]