疏水纳米SiO_2改性蜂蜡烫蜡缅甸花梨木对紫外光的耐久性  

Ultraviolet durability of Bruma rosewood polished using beewax modified by hydrophobic nano SiO_2

作　　者：郭伟[1,2] 牛晓霆[1] 蔡英春[1] 李伟[1] 

机构地区：[1]东北林业大学材料科学与工程学院,黑龙江哈尔滨150040 [2]齐齐哈尔大学美术与艺术设计学院,黑龙江齐齐哈尔161006

出　　处：《南京林业大学学报（自然科学版）》2015年第5期111-117,共7页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：中央高校基本科研业务费专项资金资助(DL12BB03)

摘　　要：在以传统烫蜡工艺对缅甸花梨木表面进行改性蜂蜡烫蜡处理过程中,为了改善传统烫蜡后木材表面对紫外光的耐久性,采用疏水纳米Si O2对传统烫蜡用材蜂蜡进行共混改性处理。以色度学参数、表面光泽度、接触角及纹理明显性为评价指标,探讨不同疏水纳米Si O2含量对烫蜡后木材表面耐紫外光性能的影响。结果表明:疏水纳米Si O2的应用能有效增强木材表面颜色对紫外光的耐久性,纳米Si O2的加入均降低了烫蜡后木材表面光泽度,当疏水纳米Si O2加入量为1%时,处理材的光泽度最接近于未处理材;疏水纳米Si O2加入量为2%时,改性后蜂蜡处理材表面色差值最小,木材表面疏水性增强,对于提高烫蜡后花梨木表面紫外光耐久性最佳,紫外光辐射96 h后对木材纹理明显性的影响不大。In order to effectively improve ultraviolet aging durability of traditional wax coating hardwood surface,traditional beewax was modified by hydrophobic nano Si O2 using blending method. According to the traditional wax polish process,the surface of Bruma rosewood（ 100 mm × 100 mm × 10 mm） was treated with the modified bee wax. The ultraviolet resistance was investigated through analyzing colorimetric parameters,surface gloss,contact angle and texture prosperities change. The results showed that the application of hydrophobic nano Si O2 could effectively enhanced the ultraviolet durability of wood surface color. When the addition amount of hydrophobic nano Si O2 was 2%,the color difference of modified wood surface was minimum and the hydrophobic property of wood surface was also enhanced. The wood texture prosperities change was reduced by ultraviolet radiation 96 h. The addition of nano Si O2 reduced the wood surface gloss,and the surface gloss of wood surface treated by modified beewax with the addition hydrophobic nano Si O2 amount of 1% was close to the untreated wood. In addition,the optimal addition amount of hydrophobic nano Si O2 was 2%through the analysis of improvement of the ultraviolet durability.

关 键 词：疏水纳米SiO2 改性蜂蜡 缅甸花梨木 烫蜡 紫外光耐久性 

分 类 号：S782[农业科学—木材科学与技术] TQ630[农业科学—林学]