水分对改性淀粉粘接实木的影响

Katarzyna Bartoszuk, G. Kowaluk
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引用次数: 4

摘要

水分对改性淀粉粘接实木的影响。不断增长和发展的人口正在加剧全球变暖,而这是大量使用化学品造成的。其中大部分是原油,这是一种不可再生的资源。这就是为什么人们试图在各个领域寻找有机替代品,甚至在木材行业。在这里,最常见和最流行的粘合剂-胺树脂,在研究中被更天然的粘合剂部分或完全取代,无甲醛,由可再生原料制成,最好是植物基。本项目研究了淀粉基胶在木材粘接中的应用可能性,以及在不同的粘接样品环境储存条件下对胶合桦木(Betula L.)的影响。结果表明,在常温、常湿和另外一种干燥条件下,试样具有非常相似的抗剪强度。另一方面,木材内部的损害则多种多样。该研究还包括了潮湿的样本,结果较差。由此可以得出结论,变性淀粉是一种非常好的有机胶,在某些应用中有可能取代某些化学产品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Moisture influence on solid wood bonded with modified starch
Moisture influence on solid wood bonded with modified starch. A growing and developing population is contributing to the ever-increasing global warming, which is caused, among other things, by the heavy use of chemicals. Most of them are crude oil-based, which is a non-renewable source. That is why the population tries to find organic substitutes in every area, even in the wood industry. Here, the most common and popular binders - amine resins, are subjected in research to partial or full replacement by more natural binders, non-formaldehyde, made of renewable raw materials, preferably plant-based. In this project, the studies were carried out on the possibility of starch-based glue application in wood bonding and its effect on glued birch wood (Betula L.) under various environmental storage conditions of bonded samples. The results show, that the samples at room temperature and normal humidity, as well as another – additionally dried, have a very similar shear strength. In-wood damages, on the other hand, are much more varied. The research also included moistened samples, which gave poorer results. Based on the results, it can be concluded, that modified starch is a very good organic glue, that can potentially replace some chemical products in certain applications.
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