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首页> 外文会议>International Symposium on East Asian Resources Recycling Technology（EARTH 2005); 20051109-15; Beijing(CN) >Preparation of Adhesive for Bamboo Plywood Using the Concentrated Papermaking Black Liquor or Lignin
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Preparation of Adhesive for Bamboo Plywood Using the Concentrated Papermaking Black Liquor or Lignin

机译：用浓造纸黑液或木质素制备竹胶合板胶

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摘要

Current status of adhesive for bamboo plywood and the treatment of papermaking black liquor were analyzed synthetically. Adhesive for bamboo plywood prepared using lignin existing in the black liquor as a kind of material replacing part of phenol was proposed, on the basis of the same structural properties of lignin and phenol. There are two technique routes: for the concentrated black liquor, methylation and then applied to preparation of adhesive directly. Both alkali and lignin are utilized without second pollution; for black liquor cannot be used for adhesive preparation, firstly acidulating and precipitating lignin from black liquor, methylation and then applied to preparation of adhesive. The process of adhesive preparation was studied in detail. The technique has applied to the industrial production successfully. All terms of performance of bamboo plywood prepared using black liquor phenolic resin or lignin phenolic resin are better than that of the excellent bamboo plywood of national criteria. Using this technique, the cost depresses up to 30-40% without altering the traditional adhesive producing technique flow, and without adding additional equipments.
机译：综合分析了竹胶合板胶粘剂的现状和造纸黑液的处理方法。基于木质素和苯酚的相同结构特性，提出了以黑液中存在的木质素为原料代替部分苯酚制备的竹胶合板胶粘剂。技术路线有两种：浓缩黑液先进行甲基化，然后直接用于制备胶粘剂。碱和木质素的使用均无二次污染。黑液不能用于胶粘剂的制备，首先是将木浆中的木质素酸化，沉淀，甲基化，再用于胶粘剂的制备。详细研究了粘合剂的制备过程。该技术已成功应用于工业生产。用黑液酚醛树脂或木质素酚醛树脂制得的竹胶合板的各项性能均优于国家标准的优竹胶合板。使用这种技术，成本降低了30-40％，而无需更改传统的粘合剂生产技术流程，也无需添加其他设备。

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