| 摘要 |
<p>PCT No. PCT/SE85/00116 Sec. 371 Date Jan. 21, 1986 Sec. 102(e) Date Jan. 21, 1986 PCT Filed Mar. 14, 1985 PCT Pub. No. WO85/04130 PCT Pub. Date Sep. 26, 1985.A fibre board having improved strength, water-resistance and flame resistance comprises a lignin-containing fibre material and a binder. The binder is formed from a binder solution containing an alkali silicate solution, a sulphur component, and an metal component. The solution may also include hydro-foaming agents, fillers and other materials. The preferred binder solution includes 50-90 parts by weight alkai silicate solution, 0.5-10 parts by weight sulphur component and 10-40 parts by weight of the metal component. A method is also presented for the formation of an improved fibre board through utilization of a preferred mixture of a lignin-containing fibre material and a preferred binder solution under pressure, at a temperature of about 130 DEG to 230 DEG centigrade.</p> |
