Improved performance of thermally modified wood via impregnation with carnauba wax/organoclay emulsion
Improved performance of thermally modified wood via impregnation with carnauba wax/organoclay emulsion
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通过巴西棕榈蜡/有机粘土乳液浸渍改善热改性木材的性能
DOI：
10.1016/j.conbuildmat.2020.118586
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发表时间：
2020-06
影响因子：
7.4
通讯作者：
Jiamin Wang
中科院分区：
文献类型：
--
作者：
Wang Wang;Yangyang Ran;Jiamin Wang
热改性木材（TMW）存在机械性能差、易受紫外线照射等缺点，限制了TMW在建筑行业的应用。为了解决上述缺点，制备了含有有效分散的有机粘土（0、0.5 和 1.0 wt%）的巴西棕榈蜡乳液作为热改性火炬松（Pinus taeda）后处理的改性剂。形态观察证实，在管胞腔内形成了巴西棕榈蜡/有机粘土复合涂层，并且有机粘土层成功渗透到木材细胞壁中。评估了巴西棕榈蜡/有机粘土乳液在提高 TMW 质量方面的效率。结果表明，巴西棕榈蜡/有机粘土乳液对 TMW 产生积极影响，降低其吸水率，提高其弯曲和压缩强度，在风化条件下保持其恒定的颜色和光泽，并降低金属腐蚀性。在大多数情况下，有机粘土负载量越高，TWM 的性能越好。因此，用巴西棕榈蜡/有机粘土乳液浸渍的 TMW 显示出作为户外应用的潜在建筑材料的潜力。
Thermally modified wood (TMW) presents several disadvantages, such as poor mechanical properties and vulnerability to ultraviolet exposure, which limit the application of TMW in the construction industry. To address the aforementioned shortcomings, carnauba wax emulsions containing efficiently dispersed organoclay (0, 0.5, and 1.0 wt%) were prepared as modifiers for the post-treatment of thermally modified loblolly pine (Pinus taeda). Morphological observation confirmed that the carnauba wax/organoclay complex coating was formed in the tracheid lumen, and organoclay layers successfully penetrated into the wood cell wall. The efficiency of the carnauba wax/organoclay emulsion in improving the quality of TMW was evaluated. The results showed that carnauba wax/organoclay emulsion positively affected TMW, reducing its water uptake, increasing its bending and compressive strengths, maintaining its constant color and gloss under weathering, and decreasing metal corrosiveness. In most cases, the higher the organoclay loading, the better the performance of TWM. Thus, TMW impregnated with carnauba wax/organoclay emulsion shows potential as a potential construction material for outdoor applications.
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影响因子：
7.4
作者：
P. Yu;Z. Wang;Pengfei Lai;Peng Zhang;Jianpeng Wang
通讯作者：
P. Yu;Z. Wang;Pengfei Lai;Peng Zhang;Jianpeng Wang
影响因子：
8.4
作者：
M. Ebner;A. Petutschnigg
通讯作者：
M. Ebner;A. Petutschnigg
影响因子：
1.4
作者：
Wang Wang-Wang;Jinzhen Cao;F. Cui;Xing Wang
通讯作者：
Wang Wang-Wang;Jinzhen Cao;F. Cui;Xing Wang
影响因子：
2.4
作者：
Wang Wang-Wang;Yiheng Huang;Jinzhen Cao;Yuan Zhu
通讯作者：
Wang Wang-Wang;Yiheng Huang;Jinzhen Cao;Yuan Zhu
DOI：
10.1515/hf-2013-0038
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Wang Wang-Wang;Yuan Zhu;Jinzhen Cao;Ru Liu
通讯作者：
Wang Wang-Wang;Yuan Zhu;Jinzhen Cao;Ru Liu