[ Chinese wardrobe network ] As we all know, formaldehyde is the number one killer of decoration pollution, then how is it produced? Formaldehyde mainly comes from two aspects:
First: When the wood itself is dry, it produces formaldehyde due to internal decomposition. The smaller the density of wood, the stronger the ability to disperse formaldehyde.
Second: Glue used for bonding the substrate of the board is one of the main reasons for the production of formaldehyde. At present, the main glues on the market are urethane aldehyde glue and melamine glue. The production process of urethane aldehyde glue is simple, and the equipment requirements are not high. Most of them are produced by many small workshops, but the formaldehyde emission is large, but because of its low price. It is mainly used by wood board, medium and low density fiberboard when the substrate is bonded with a large amount of glue. The tripoly hydrogenamide glue is a new type of environmentally friendly glue, and its production process and equipment requirements are relatively high. The content is lower, but the price is much more expensive than urethane aldehyde glue, generally used for high-grade plates.
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