| 摘要 |
The invention relates to an improvement in a process for the production of carbon fibre (also filaments and films) from organic material consisting mainly of hydrocarbons (e.g. pitch, tars, solutions or extracts of coal). The organic material is spun or extruded to form a fibre, oxidised to stabilise it to heat treatment and subsequently carbonised. The invention comprises employing as an additive in the organic material from 0.05 percent to 30 percent by weight of one or more polymers compatible with the organic material and thoroughly mixed therewith, provided that if the polymer is aromatic, it has a molecular weight of above 5000. Typical polymers include vinyl chloride polymers, vinyl acetate polymers, polymethacrylates, and polypropylenes. |
