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当前位置: 首页 > 文章 > 竹材表面ZnO纳米薄膜的自组装及其抗光变色性能 北京林业大学学报 2010,32 (1) 96-100
Position: Home > Articles > ZnO nano film’s self-assembly on the surface of bamboo wood and its anti-light discoloration properties Journal of Beijing Forestry University 2010,32 (1) 96-100

竹材表面ZnO纳米薄膜的自组装及其抗光变色性能

作  者：
宋烨;余雁;王戈;田根林;程海涛;吴义强
单  位：
中南林业科技大学材料科学与工程学院;国际竹藤网络中心竹藤科学与技术重点实验室
关键词：
竹材;ZnO;纳米薄膜;抗光变色
摘  要：
ZnO纳米棒对紫外线具有超强的吸收能力,有可能大幅度改善竹材抗光变色性能。在低温溶液体系下,通过ZnO晶种形成和晶体生长两道工序在竹材表面自组装形成ZnO纳米薄膜,探索大幅度改善竹材抗光变色性能的可行性,并重点研究了种子液浸渍时间对ZnO纳米薄膜形态的影响。结果表明:在晶体生长条件一致的前提下,竹材表面所形成的薄膜形态与在种子液中的浸渍时间密切相关;0.5和1h浸渍使竹材表面形成了由直径小于20nm的ZnO纳米颗粒组成的薄层;2h浸渍形成微纳米网状和哑铃棒状结构;当浸渍时间增加至4h,表面薄膜则主要为无序的纳米棒和少量微纳米六面体结构;经过120h加速老化试验,发现空白试样总色差是表面生长出ZnO纳米棒试样的3倍,改性试样表观颜色的光稳定性显著增强。
译  名：
ZnO nano film’s self-assembly on the surface of bamboo wood and its anti-light discoloration properties
作  者：
SONG Ye~ 1,2 ;YU Yan~1;WANG Ge~1;TIAN Gen-lin~1;CHENG Hai-tao~1;WU Yi-qiang~2.1 Key Laboratory of Bamboo and Rattan Science and Technology,International Center for Bamboo and Rattan,Beijing,100102,P.R. China;2 College of Material Science and Engineering,Central South Forestry Science and Technology University,Changsha,410004,P.R. China.
关键词：
bamboo wood;ZnO;nano films;anti-light discoloration
摘  要：
ZnO nano rod owns the potentials to improve anti-light discoloration properties of bamboo wood because of its strong absorption for ultraviolet. This study explored the possibility of forming nano scale ZnO film via a low temperature aqueous solution route on the surface of bamboo wood to improve its anti-light discoloration properties. The route was a two-step process consisting of ZnO crystal seed formation and seed growth. The effects of immersion time in seed solution on morphologies of films were mainly investigated. The results showed that film morphologies were closely correlated to immersion time in ZnO seed solution for the same seed growth conditions. Films formed on bamboo wood which immersed in ZnO seed solution for 0.5 and 1 hour mainly consisted of ZnO nano particles with a diameter less than 20 nm,while reticulations and dumbbells for 2 hours immersion. A film mainly consisted of randomly arranged nano rods and some micro-nano hexahedrons was formed when the immersion time was increased to 4 hours. It was further found that the total color difference(ΔE) of control was three times of the one grown with ZnO nano rods after 120 hours acceleration weathering,which confirmed that the color stability of treated bamboo wood was greatly improved.

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