| 摘要 |
FIELD: wood-working industry, in particular, methods for decreasing the content and emission of formaldehyde intended for fiber boards. ^ SUBSTANCE: the process of production of fiber boards is conducted with employment of aminated adhesive resins with an addition of substances binding the formaldehyde by compacting in running presses or continuous-action presses and by cooling. After compacting, but before cooling the fiber board is subjected to a short-time curing at 80 to 100C during 6 to 16 hours, depending an the expected level of decrease and emission of formaldehyde and used parameters of the process of production. ^ EFFECT: reduced content and emission of formaldehyde in the fiber board. ^ 5 cl, 3 dwg, 3 ex |
