A modified foam and preparation method thereof

By adding prepared alumina microsphere flame retardant to the conductive foam, the problems of insufficient flame retardant performance and difficulty in dimensional control of existing conductive foams are solved, and the high flame retardancy, antibacteriality and mechanical properties of modified foams are improved, and are suitable for thin and light electronic products.

CN119161558BActive Publication Date: 2025-03-28SHENZHEN HONGDAYUAN LIGHT ADHESIVE PROD CO LTD
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Patent Information

Application Number
CN202411598485.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-11
Publication Date
2025-03-28
Estimated Expiration
2044-11-11

AI Technical Summary

Technical Problem

The flame retardant performance of existing conductive foams is insufficient, and the size is difficult to control in narrow gaps, which cannot meet the needs of thin and light electronic products.

Method used

By adding the prepared flame retardant, using alumina microspheres as a carrier, it is modified by the surface of tannin acid, reacted with oxyphosphate trichloride and hexachlorocyclotriphosphazene, and grafted magnesium and iron elements to produce a flame retardant containing N and P, which improves the flame retardant and mechanical properties of the foam.

Benefits of technology

It significantly improves the flame retardancy and antibacterial effect of modified foam, while improving its mechanical properties, and is suitable for narrow gap filling in thin and light electronic products.

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Abstract

The present invention proposes a modified foam and a preparation method thereof, and belongs to the technical field of polyurethane. Polyether polyol, distilled water, silicone oil, diethanolamine, and flame retardant are uniformly mixed, initiator and isocyanate are added, heated and stirred to react and foam, heated and matured, taken out and placed at room temperature, and the modified foam is obtained. The present invention can significantly improve the flame retardancy of the prepared modified foam by adding the prepared flame retardant, and also significantly improve its antibacterial effect, and can also improve the mechanical properties of the foam to a certain extent. The preparation method is simple, can significantly improve the performance of the modified foam, and has broad application prospects.
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