| 超声波在纳米SiO_2与脲醛树脂共混中的应用 |
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| 引用本文： | 杨桂娣,林巧佳,刘景宏.超声波在纳米SiO_2与脲醛树脂共混中的应用[J].福建农林大学学报(自然科学版),2004,33(4):538-541. |
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| 作者姓名： | 杨桂娣 林巧佳 刘景宏 |
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| 作者单位： | 1. 福建农林大学生命科学学院
2. 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： | 福建省教育厅资助项目(K02052). |
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| 摘 要： | 采用超声波分散法制备了性能良好的纳米SiO2/UF树脂,探讨了纳米SiO2用量、超声分散时间等因素对脲醛树脂(UF)游离甲醛含量、胶合强度的影响.性能测试表明:超声波分散是降低纳米粒子团聚的简单而有效的方法;随着纳米SiO2加入量的增加,经超声波分散后,纳米SiO2/UF树脂游离甲醛含量降低;经合适时间的超声波分散后,其压制的胶合板胶合强度显著提高.
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| 关 键 词： | 纳米SiO2 脲醛树脂 超声波 胶合强度 游离甲醛 |
| 文章编号： | 1006-7817(2004)04-0538-04 |
| 修稿时间： | 2004年3月18日 |
Ultrasonic application to the mixture of nano-SiO2 and UF resin |
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| YANG Gui-di,LIN Qiao-jia,LIU Jing-hong.Ultrasonic application to the mixture of nano-SiO2 and UF resin[J].Journal of Fujian Agricultural and Forestry University,2004,33(4):538-541. |
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| Authors: | YANG Gui-di LIN Qiao-jia LIU Jing-hong |
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| Institution: | YANG Gui-di~1,LIN Qiao-jia~2,LIU Jing-hong~2 |
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| Abstract: | Based on the influence of inorganic rigid particles(nano-SiO_2) on the properties of urea formaldehyde(UF) resin, nano-SiO_2/UF composites have been made by ultrasonic vibration. The effects of different contents of nano-SiO_2, ultrasonic time on the properties of nano-SiO_2/UF composites such as free formaldehyde content and bonding strength were discussed. The results indicated that ultrasonic was a simple and effective method to prevent nano-SiO_2 from reuniting, and the free formaldehyde content of nano-SiO_2/UF composites decreased; the bonding strength of plywood pressed by it greatly increased with the nanometer silicon dioxide added during properly ultrasonic period. |
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| Keywords: | nanometer silicon dioxide urea formaldehyde(UF) resin ultrasonic bonding strength free formaldehyde |
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