| 释义 |
impreg|ˈɪmprɛg|
Also Impreg.
[Abbrev. of impregnated ppl. a. 2.]
A type of wood impregnated with a synthetic resin to improve its dimensional stability and resistance to distortion or decay.
1942Fortune Oct. 180/2 F[orest] P[roducts] L[aboratory] makes a special ‘impreg’ by treating wood with raw resin so that the resin actually penetrates the wood cells. 1953Hunt & Garratt Wood Preservation (ed. 2) xi. 365 The shrinkage and swelling of wood..can be reduced..by first impregnating the wood (in thin sheets) with a solution of unpolymerized phenol-formaldehyde resin, then drying the wood at moderate temperatures, and finally heating the dry wood at about 300°C to polymerize the resin in place; the product formed is called Impreg. 1953Stamm & Harris Chem. Processing of Wood (1954) viii. 226 Impreg was manufactured during World War II only for military users. 1967R. H. Farmer Chem. in Utilization of Wood viii. 119 Uncompressed resin-impregnated wood was first made in the United States, where it is called Impreg. |