Continuous long fiber reinforced fire-retardant thermoplastic resin and its prepn

Abstract

The present invention discloses one kind of continuous long fiber reinforced fire-retardant thermoplastic resin and its preparation process. It is prepared through mixing continuous long fiber reinforced thermoplastic resin agglomerate, which has reinforcing fiber content of 30-80 wt% and agglomerate length of 3-30 mm, and fire-retardant agglomerate, which has thermoplastic resin as carrier, fire retardant in 20-60 wt%, fire-retarding synergist 5-20 wt% and other additive 0-5 wt%. The continuous long fiber reinforced fire-retardant thermoplastic resin has continuous long fiber content of 5-60 wt%. The continuous long fiber reinforced fire-retardant thermoplastic resin has excellent mechanical performance, especially impact resistance, and excellent fire-retarding performance.

Description

technical field

[0001] The invention relates to the field of polymer materials, in particular to a continuous long fiber reinforced flame-retardant thermoplastic resin and a preparation method thereof. Background technique

[0002] Continuous long fiber reinforced thermoplastic resin is a reinforced thermoplastic resin in which the reinforcing fibers are arranged in one direction and the length is the same as that of the resin pellets. Compared with conventional short fiber reinforced thermoplastic resins, it has more excellent mechanical properties, dynamic fatigue resistance, creep resistance, etc.; especially the impact resistance of the material is extremely excellent. Therefore, it is especially suitable to replace cast iron, aluminum and thermosetting plastics in some occasions.

[0003] The fiber-reinforced flame-retardant thermoplastic resin prepared by the traditional process is obtained by mixing thermoplastic resin, flame retardant, flame-retardant synergist and ...