A polystyrene material and its preparation method and application

By combining low-fluidity high-impact polystyrene resin and high intrinsic viscosity polyphenylene ether resin with specific additives, the flame retardant and toughness problems of halogen-free high-impact polystyrene materials are solved, achieving efficient 5VA grade flame retardancy and high notched impact strength, which is suitable for electronic and home appliance products.

CN117757208BActive Publication Date: 2025-09-16KINGFA SCI & TECH CO LTD
4 Cites 0 Cited by

Patent Information

Application Number
CN202311688005.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-11
Publication Date
2025-09-16
Estimated Expiration
2043-12-11

AI Technical Summary

Technical Problem

Existing halogen-free high-impact polystyrene materials have deficiencies in flame retardancy and notched impact strength, making it difficult to simultaneously meet the 5VA grade flame retardancy test and high toughness requirements. The addition of fillers or flame retardants will affect the appearance and performance of the material.

Method used

The polystyrene material is prepared by the synergistic use of low-fluidity high-impact polystyrene resin and high intrinsic viscosity polyphenylene ether resin, combined with phosphate flame retardant, flame retardant synergist, toughening agent and anti-dripping agent through extrusion granulation process to optimize the material's melt strength and carbonization efficiency.

Benefits of technology

The halogen-free flame retardant material achieves the effect of no burning through and no dripping in the 5VA test, while maintaining a high notched impact strength, meeting the V-0 grade flame retardant performance and good fluidity.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention belongs to the field of polymer materials technology, specifically relating to a polystyrene material, its preparation method, and application. The polystyrene material comprises the following components, in parts by weight: 10-50 parts high-impact polystyrene resin, 25-40 parts polyphenylene ether resin, 10-20 parts phosphate flame retardant, 5-15 parts flame retardant synergist, 1-20 parts toughening agent, and 0.1-0.5 parts anti-drip agent. The high-impact polystyrene resin has a melt flow index of 3-10 g / 10 min at 200°C and 5 kg; and the polyphenylene ether resin has an intrinsic viscosity of 0.40 dL / g to 0.60 dL / g. The polystyrene material produced by the present invention effectively overcomes the poor toughness of existing halogen-free HIPS materials, achieving high flame retardancy and notched impact strength.
Need to check novelty before this filing date? Find Prior Art