| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to woodworking industry. Proposed method comprises preparing wood particles, drying and sorting them, making modifying carbamide-formaldehyde resin-based binder, mixing it with wood particles, producing carpet and moulding plates. Carbamide-formaldehyde resin modifier is made up of PVAC dispersion-based composition with ratio of components in wt % as follows: carbamide-formaldehyde resin - 67-92; PVAC dispersion - 5-20; carbamide - 1-5: plasticiser - 1-5, and curing agent - 1-3. ^ EFFECT: reduced toxicity of chipboards. ^ 7 ex, 1 tbl |
