Study on Preparation of Epoxidized Linseed Oil/Carnauba Wax Compound Emulsion and the Hydrophobicity of Treated Poplar Wood

Yu-jiao WANG; Jin-yu CHEN; Yao PENG; Wang WANG; Jin-zhen CAO

doi:10.12326/j.2096-9694.2020040

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Study on Preparation of Epoxidized Linseed Oil/Carnauba Wax Compound Emulsion and the Hydrophobicity of Treated Poplar Wood
1.Key Laboratory of Wooden Material Science and Application， Beijing Forestry University， Beijing 100083， China
Vol. 35, Issue 1, Pages: 30-35(2021)
DOI： 10.12326/j.2096-9694.2020040

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王玉娇,陈金宇,彭尧等.环氧亚麻油-棕榈蜡复合乳液的制备及处理材的疏水性[J].木材科学与技术,2021,35(01):30-35.

WANG Yu-jiao,CHEN Jin-yu,PENG Yao,et al.Study on Preparation of Epoxidized Linseed Oil/Carnauba Wax Compound Emulsion and the Hydrophobicity of Treated Poplar Wood[J].Chinese Journal of Wood Science and Technology,2021,35(01):30-35.
王玉娇,陈金宇,彭尧等.环氧亚麻油-棕榈蜡复合乳液的制备及处理材的疏水性[J].木材科学与技术,2021,35(01):30-35. DOI： 10.12326/j.2096-9694.2020040.

WANG Yu-jiao,CHEN Jin-yu,PENG Yao,et al.Study on Preparation of Epoxidized Linseed Oil/Carnauba Wax Compound Emulsion and the Hydrophobicity of Treated Poplar Wood[J].Chinese Journal of Wood Science and Technology,2021,35(01):30-35. DOI： 10.12326/j.2096-9694.2020040.

摘要

为改善木材表面的疏水性能，以环氧亚麻油与棕榈蜡制备的复合乳液用于青杨（,Populus cathayana, Rehd.）试样常压浸渍处理，考察环氧亚麻油与棕榈蜡的配比及亲水亲油平衡值（HLB值）对复合乳液稳定性和粒径的影响，并评价复合乳液处理材的疏水性。结果表明，当环氧亚麻油/棕榈蜡配比为3： 7、复合乳液的HLB值为17.0时，复合乳液的平均粒径为223.5 nm，离心稳定性达1级；处理材横切面与弦切面30 s内的接触角达到119.2°和105.8°，流失率为6.1%，对提高木材表面疏水性能具有实际应用意义。

Abstract

In order to improve the hydrophobic property of wood surfaces, epoxidized linseed oil and carnauba wax were used to prepare a compound emulsion to impregnate Poplar (,Populus cathayana,Rehd.) samples at atmospheric pressure. The effects of ratio of oil to wax and surfactant hydrophile-lipophile balance (HLB) value on the stability and particle size of compound emulsion were investigated; the hydrophobicity of wood was evaluated simultaneously. The results showed that when the HLB value was 17.0 and epoxidized linseed oil to carnauba wax ratio was 3: 7, average particle size was 223.5 nm and centrifugal stability reached level 1. The contact angles on both cross and tangential sections of treated wood after 30 s reached 119.2° and 105.8° respectively; the leaching rate was 6.1%, which displayed significant improvement of the surface hydrophobic property of wood.

关键词

木材表面疏水环氧亚麻油棕榈蜡复合乳液离心稳定性抗水流失性

Keywords

wood surface hydrophobicepoxidized linseed oilcarnauba waxcompound emulsioncentrifugal stabilityleaching resistance

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