Towards better UV-blocking and antioxidant performance of varnish via additives based on lignin and its colloids

Tan Shanyuan; Liu Di; Qian Yong; Wang Jingyu; Huang Jinhao; Yi Conghua; Qiu Xueqing; Qin Yanlin

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Towards better UV-blocking and antioxidant performance of varnish via additives based on lignin and its colloids

机译：通过木质素及其胶体添加剂提高清漆的抗紫外线和抗氧化性能

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Organosolv lignin (OL) extracted from pine wood was self-assembled into uniform nanocolloidal spheres (OLCS) in acetone/water and blended with varnish for better UV-blocking and antioxidant performance. The UV transmittance of the varnish with 1% OL was lower than that of a commercial varnish containing synthetic UVA and UVB blocker. Samples coated with OL-based varnish and UV irradiated for 100 h showed 84 and 69% less color change, respectively, compared to that of pure and commercial varnishes. Due to the higher surface area and better compatibility, the varnish blended with 1% OLCS showed better UV-blocking and photostability than those based on 1% OL additive. The color change of varnish was not perceptible. The lignin-based additives significantly enhanced the hardness and adhesion performance of the varnish and had little influence on the esthetic appearance of the samples. The hardness and modulus of elasticity of varnish increased by 61 and 36%, respectively, in the presence of 1% OLCS. The possible enhancement mechanism was explained by molecular interaction forces.

机译：将从松木中提取的有机溶剂木质素（OL）在丙酮/水中自组装成均匀的纳米胶体球（OLCS），并与清漆混合，以获得更好的紫外线阻隔和抗氧化性能。 OL含量为1％的清漆的紫外线透射率低于含有合成UVA和UVB阻滞剂的商业清漆。与纯清漆和市售清漆相比，涂有OL基清漆和UV照射100 h的样品分别显示出84和69％的变色。由于具有更高的表面积和更好的相容性，与基于1％OLCS的清漆相比，与1％OLCS混合的清漆具有更好的紫外线阻隔性和光稳定性。清漆的颜色变化不明显。木质素基添加剂显着提高了清漆的硬度和粘合性能，对样品的美学外观几乎没有影响。在1％OLCS的存在下，清漆的硬度和弹性模量分别增加了61％和36％。可能的增强机制由分子相互作用力解释。

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来源
《Holzforschung》 |2019年第5期|485-491|共7页
作者
Tan Shanyuan; Liu Di; Qian Yong; Wang Jingyu; Huang Jinhao; Yi Conghua; Qiu Xueqing; Qin Yanlin;
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作者单位

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

South China Univ Technol, Guangdong Engn Res Ctr Green Fine Chem, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China;

Guangdong Univ Technol, Sch Chem Engn & Light Ind, Guangzhou 510006, Guangdong, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
antioxidant; lignin; nanocolloidal spheres; UV-blocking; varnish;

机译：抗氧化剂;木质素;纳米胶体;紫外线阻隔;清漆;

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1. Towards better UV-blocking and antioxidant performance of varnish via additives based on lignin and its colloids [J] . Tan Shanyuan, Liu Di, Qian Yong, Holzforschung . 2019,第5期

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Towards better UV-blocking and antioxidant performance of varnish via additives based on lignin and its colloids

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