乳化石蜡/硅烷木材防水剂的制备及性能

董迎; 王玉娇; 王望; 曹金珍

doi:10.19455/j.mcgy.20180405

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乳化石蜡/硅烷木材防水剂的制备及性能
Preparation and Properties of Emulsified Water Repellent Made from Paraffin Wax and Silane for Wood Modification
1. 北京林业大学木质材料科学与应用教育部重点实验室
2018年32卷第4期页码：18-21
DOI： 10.19455/j.mcgy.20180405

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[1]董迎,王玉娇,王望,曹金珍.乳化石蜡/硅烷木材防水剂的制备及性能[J].木材工业,2018,32(04):18-21.

DONG Ying, WANG Yu-jiao, WANG Wang, et al. Preparation and Properties of Emulsified Water Repellent Made from Paraffin Wax and Silane for Wood Modification[J]. China Wood Industry, 2018,32(4):18-21.
[1]董迎,王玉娇,王望,曹金珍.乳化石蜡/硅烷木材防水剂的制备及性能[J].木材工业,2018,32(04):18-21. DOI： 10.19455/j.mcgy.20180405.

DONG Ying, WANG Yu-jiao, WANG Wang, et al. Preparation and Properties of Emulsified Water Repellent Made from Paraffin Wax and Silane for Wood Modification[J]. China Wood Industry, 2018,32(4):18-21. DOI： 10.19455/j.mcgy.20180405.

摘要

为确定石蜡/硅烷木材防水剂的制备工艺,采用正交试验法,考察硅烷直链烷基链长、石蜡/硅烷比例、表面活性剂HLB值和含量四个因素对防水剂稳定性和粒径的影响,并探究不同配比石蜡/硅烷防水剂处理样的防水效果。结果表明,表面活性剂用量6%、HLB值为13.5,配制石蜡/硅烷为2∶1的石蜡/十二烷基甲氧基硅烷乳液,乳液平均粒径195.7 nm,稳定性等级达到1级,用于木材试样疏水改性的384 h防水效率达27.3%。

Abstract

In order to develop formulations of paraffin wax/silane emulsion for wood modification, an orthogonal test was designed to determine the effect of alkoxysilane chain length and ratio of wax to silane. This test also studied hydrophile-lipophile balance（HLB） value and content of surfactant on stability and particle size of the paraffin wax/silane emulsion. Moreover, water repellent efficiency of wood samples treated with different paraffin wax/silane emulsions was also determined. The results indicated that the optimal emulsion formulation was found with 2∶1 ratio of wax to silane as well as 13.5 of the HLB value and 6% of the surfactant content. The emulsion reached stability grade 1 with 195.7 nm average particle size and 27.3% water repellent efficiency of the wood samples achieved after 384 h immersion.