| L-45脲醛树脂胶粘剂的研制 |
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| 引用本文： | 陆光月,汪济奎,杨景兴.L-45脲醛树脂胶粘剂的研制[J].河北科技大学学报,1993(3). |
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| 作者姓名： | 陆光月 汪济奎 杨景兴 |
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| 作者单位： | 河北轻化工学院化学工程系，河北轻化工学院化学工程系，河北轻化工学院化学工程系 |
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| 摘 要： | L-45脲醛树脂胶粘剂是在普通脲醛树脂胶合成方法的基础上,采用一次加料、不脱水工艺,以1.3%左右的三聚氰胺和4%左右的聚乙烯醇为改性剂的改性胶。它的耐沸水性与普通胶相比有显著提高,一般剪切强度也有所提高,游离甲醛含量也下降很多。此种改性胶的耐水强度达到国家Ⅰ类胶合板所用胶粘剂的标准。
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| 关 键 词： | 脲醛 胶粘剂 改性剂 三聚氰胺 聚乙烯醇 |
The Develoment of L-45 Urea-formaldehyde Resin Adhesive |
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| Lu Guangyue Wang Jikui Yang Jingxing.The Develoment of L-45 Urea-formaldehyde Resin Adhesive[J].Journal of Hebei University of Science and Technology,1993(3). |
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| Authors: | Lu Guangyue Wang Jikui Yang Jingxing |
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| Institution: | Department of Chemical Engineering |
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| Abstract: | The L-45 urea-formaldehyde resin adhesive is based on the synthetic meth- ods of ordinary urea-formaldehyde resin,We have adopted the techniques of feeding for once and need not dewatering,and we use melamine about 1.3% and polyvinyl alcohol about 4% as the modifier to gain this modified adhesive,Its boiling water resistance is much higher than the ordinary adhesive,and it has higher shear strength and lower content of free formalde- hyde,Its capacity of water-resistance has come up to the national standard of class I for com- preg. |
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| Keywords: | urea-formaldehyde modifier adhesive melamine polyvinyl alcohol |
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