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当前位置: 首页 > 文章 > 木质素磺酸钠取代苯酚改性辐射松木材 东北林业大学学报 2015 (2) 80-83
Position: Home > Articles > Properties of Modified Wood by Sodium Lignin Sulfonate Substituting Phenol Journal of Northeast Forestry University 2015 (2) 80-83

木质素磺酸钠取代苯酚改性辐射松木材

作  者：
孙晓珊;王宝生;温煌;伦红叶;樊凯悦;王丽丽
单  位：
东北林业大学
关键词：
酚醛树脂;木质素磺酸钠;木材改性;辐射松;热分析
摘  要：
用不同质量的木质素磺酸钠取代酚醛树脂中的苯酚,制得取代苯酚比例分别为5%、33%、50%、75%和100%的改性酚醛树脂。通过减压浸渍法用未改性酚醛树脂和改性酚醛树脂改性辐射松木材,并对其形貌和热性质进行对比研究。红外表征指出,木质素磺酸钠取代苯酚制得的改性酚醛树脂的特征峰与未改性酚醛树脂相同,表明改性酚醛树脂的合成获得成功。改性木材质量增加率的分析结果表明:木质素磺酸钠取代比例为75%时,木材质量增加率最大。扫描电镜的形貌结果,也证实了改性酚醛树脂已浸入到木材当中。热分析表明,5%和75%木质素磺酸钠取代的改性酚醛树脂的渗入,促进了辐射松木材炭化反应的发生,大幅提高了辐射松木材的剩炭率。
译  名：
Properties of Modified Wood by Sodium Lignin Sulfonate Substituting Phenol
作  者：
Sun Xiaoshan;Wang Baosheng;Wen Huang;Lun Hongye;Fan Kaiyue;Wang Lili;Northeast Forestry University;
关键词：
Phenolic resin;;Sodium lignosulphonate;;Wood modification;;Radiata pine;;Thermal analysis
摘  要：
We modified radiata pine by phenolic resin in which sodium lignosulphonate substituted phenol. The proportions of sodium lignosulphonate substituting phenol were 5%,33%,50%,75% and 100%,respectively. We prepared the modified woods by vacuum impregnating in the unmodified and modified phenolic resin,respectively. Furthermore,we investigated their morphology and thermal stability. By FT-IR,the characteristic peaks of modified phenolic resin didn't change compared with unmodified phenolic resin,and the result confirmed that modified phenolic resin was synthesized successfully. Modified wood weight analysis results showed that when the sodium lignosulphonate replaced the ratio of 75%,the timber weight gain rate was maximum. By SEM morphology,modified phenolic resin permeated the timber. By thermal analysis,infiltration of 5% and 75% sodium lignosulphonate instead of modified phenolic resin promoted the coking reaction of radiata pine lumber. Therefore,the rate of the remaining carbon of radiata pine lumber was increased.

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