High-heat-resistance modified polyester tableware composite material capable of being subjected to low-mold-temperature injection molding and tableware preparation method thereof
Through the low-molding injection molding process of modified polyethylene terephthalate (CPET) and inorganic filler, polyester tableware that is highly heat-resistant, environmentally friendly, beautiful and edible safe are prepared, which solves the health risks and environmental pollution problems of existing tableware materials, simplifies the preparation process and improves the molding efficiency.
Patent Information
- Application Number
- CN202411880181.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-03-28
AI Technical Summary
Existing tableware materials such as melamine tableware and PLA tableware have health risks and environmental pollution problems, and PET polyester tableware lacks heat resistance, long molding cycle and complex process.
Modified polyethylene terephthalate (CPET) is used as the main material, combined with inorganic fillers, nucleating agents, mold release agents, antioxidants and other components, and a high heat-resistant polyester tableware composite material is prepared through low-mold injection molding process, and molded through in-mold embossing process.
It achieves high heat resistance (thermal deformation temperature > 150℃), environmentally friendly, beautiful and edible safe tableware, simplifies the preparation process, shortens the molding cycle, and is suitable for existing room-temperature injection molding equipment, without post-crystallization treatment and vacuum thermal transfer.