Degradable filament, preparation method therefor, and use thereof

Abstract

The present invention relates to the technical field of biodegradable materials, and specifically relates to a degradable filament, a special material for the filament, and a preparation method therefor and a use thereof. The filament comprises a main base material of PHA, or a pure PHA base material and auxiliary agents such as a nucleating agent and/or a reinforcing agent. According to the present invention, by further cooperating with an initial spinning process comprising cooling and stretching, the preparation of a pure PHA-based filament is achieved; the phenomena such as low melt strength, poor thermal stability, low crystallization speed, weak mechanical properties, and serious adhesion during PHA spinning are improved; the comprehensive properties, in particular the mechanical properties, of the pure PHA-based filament are improved; and the requirements of the application fields of conventional fabric products and industrial textile products are met.

Dependencies are inferred from the claim text.