CHI—1低毒性刨花板用脲醛树脂胶的研制(一)

A RESEARCH ON CHI—1 UF RESIN WITH LOWER FREE FORMALDEHYDE FOR PARTICLE BOARD

通过讨论区分游离甲醛的存在方式,认为合理地制定胶粘剂合成工艺对降低刨花板甲醛释放量非常重要,同时介绍了以此理论为依据而进行的 CHI-1低毒刨花板用脲醛树脂胶的研究进展程度、CHI-1的技术性能及生产实践的应用情况。

The UF resin is a principal adhesive for particle board, in order to decrease the free formaldehyde in urea-formaldehyde resin adhesive, the peopel often decrease expense of formaldehyde during the synthesis. In this way, the strength of particle board and its waterproof are lowered, and the curing time of resin is prolonged. That is why the auther began to research CHI-1 .The synthetic technology is used by means of changing the craft of synthesis, CHI-1 UF resin differs from other UF resins as follows: 1.with a craft of mild tom- prature; 2. with wider adaptability to change pH and temperature;3.with a proportion (about 1:1.4) of gramme-molecule and its free formaldehyde under 0.5%.