High flame-retardant product, method for manufacturing the same, and high flame-retardant long-fiber polypropylene composite material thereof
The long fiber polypropylene composite material addresses compatibility issues by incorporating reinforced and functional pellets with specific flame retardants and compatibilizers, achieving V0 grade flame retardancy and superior mechanical properties.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NANYA PLASTICS CORP
- Filing Date
- 2025-03-21
- Publication Date
- 2026-07-24
AI Technical Summary
Long fiber polypropylene composite materials suffer from poor compatibility between long fibers and polypropylene, limiting their mechanical properties and flame retardancy, which restricts their application.
A highly flame-retardant long fiber polypropylene composite material is developed using reinforced plastic pellets containing a first polypropylene raw material and long fiber raw material, with functional pellets comprising a second polypropylene raw material and a flame retardant, including a phosphorus nitrogen-based flame retardant, melamine polyphosphate, and zinc oxide, along with a compatibilizer like grafted polypropylene or a coupling agent to enhance compatibility.
The composite material achieves V0 grade flame retardancy under the UL94 standard with a burn time greater than 500 seconds, and improved mechanical properties due to enhanced compatibility and synergistic flame retardant effects.
Smart Images
Figure 2026121335000001_ABST