High-melt index high-vicat polystyrene resin as well as preparation method and application thereof
By controlling the process conditions and adding solvents and chain transfer agents, the ratio of high molecular weight and low molecular weight polymers is balanced, and the problem of limited adjustment range of polystyrene resin melt fingers is solved, achieving the combination of high melt fingers and good mechanical properties.
Patent Information
- Application Number
- CN202411992162.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, the adjustment range of the polystyrene resin melting finger is limited, and it is easy to be accompanied by a decrease in mechanical strength and production accidents during the adjustment process.
By controlling suitable process conditions and adding solvents and chain transfer agents to the stream of styrene monomers, prepolymerization is obtained to obtain a high molecular weight polymer with a suitable molecular weight, and balanced with the amount of low molecular weight polymers during polymerization to obtain a polystyrene resin that maintains various mechanical properties.
It realizes that the melt flow rate of polystyrene resin can be improved without the use of white oil, while maintaining mechanical strength and other mechanical properties, avoiding production accidents.