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
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRODUCTION OF NON-TOXIC WOOD CHIPBOARDS | 2013 |
|
RU2527524C1 |
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SU1675087A1 |
| 0 |
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SU1780522A3 | |
| 0 |
|
SU1782754A1 | |
| WOOD CHIP-BOARDS MANUFACTURING METHOD | 0 |
|
SU1819769A1 |
