| 十二烷基硫酸钠对大豆基木材胶黏剂的改性作用 |
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| 引用本文： | 魏起华,童玲,陈奶荣,林巧佳.十二烷基硫酸钠对大豆基木材胶黏剂的改性作用[J].浙江林学院学报,2008,25(6):772-776. |
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| 作者姓名： | 魏起华 童玲 陈奶荣 林巧佳 |
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| 作者单位： | 福建农林大学,材料工程学院,福建,福州,350002 |
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| 基金项目： | 国家自然科学基金
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福建省科学技术厅资助项目
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| 摘 要： | 采用10.0g·kg^-1的十二烷基硫酸钠（SDS）改性质量分数为250.0g·kg^-1的大豆粉浆液,制成SDS改性大豆基木材胶黏剂（SF）,运用单因素和正交试验法考察了pH值、反应温度和反应时间对改性SF胶耐水胶合强度的影响。试验结果表明,SDS改性大豆基木材胶黏剂的最佳工艺：pH8,反应温度35℃,反应时间4h。改性后的SF胶Ⅱ类耐水胶合强度为0.70MPa。由红外光谱分析可知,SDS改性使大豆蛋白质分子大量的非极性基团外露,增加了蛋白质分子的疏水性,提高了改性SF胶的耐水胶合强度。图4表3参10
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| 关 键 词： | 林业工程 大豆粉 十二烷基硫酸钠 木材胶黏剂 耐水胶合强度 |
Adhesive properties of a soy-based wood adhesive using sodium dodecyl sulfate |
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| WEI Qi-hua,TONG Ling,CHEN Nai-rong,LIN Qiao-jia.Adhesive properties of a soy-based wood adhesive using sodium dodecyl sulfate[J].Journal of Zhejiang Forestry College,2008,25(6):772-776. |
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| Authors: | WEI Qi-hua TONG Ling CHEN Nai-rong LIN Qiao-jia |
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| Institution: | (College of Material Engineering, Fujian Agricultural and Forestry University, Fuzhou 350002, Fujian, China) |
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| Abstract: | A 10.0 g.kg 1 concentration of sodium dodecyl sulfate （SDS） was applied to a watery soy flour paste having a mass fraction of 250.0 g·kg^-1 to produce SDS-modified soy-based wood adhesives. The hydrophobic adhesive properties of these modified soy-based adhesives were tested for pH, temperature, and reaction time; an infrared spectrum analysis was also conducted. Test results showed that the optimum parameters were a pH of 8, temperature of 35 ℃, and a reaction time of 4 h. Infrared spectrum analysis showed that SDS-modification moved some inner hydrophobic side chains outward thereby increasing water resistance and hydrophobic adhesion strength. Ch, 4 fig. 3 tab. 10 ref. ] |
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| Keywords: | forest engineering soy flour sodium dodecyl sulfate(SDS) wood adhesive hydrophobic adhesion strength |
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