A Butyl Sealant for Edge Sealing and Its Preparation Method
By optimizing the butyl sealant formulation and process, and combining it with components such as talc, boehmite, and molecular sieves, a composite filler system is formed, which solves the problems of electrical insulation, flame retardancy, and construction performance of high-voltage photovoltaic systems and narrow-frame modules. It achieves a balance between high insulation, high flame retardancy, and good workability, meeting the usage requirements of high-voltage systems above 2000 V and 6~8 mm narrow-frame modules.
CN122302771APending Publication Date: 2026-06-30NANTONG JUNFENG NEW MATERIALS TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- NANTONG JUNFENG NEW MATERIALS TECH CO LTD
- Filing Date
- 2026-05-27
- Publication Date
- 2026-06-30
Abstract
This invention provides a butyl sealant for edge sealing and its preparation method, belonging to the technical field of photovoltaic module encapsulation materials. The butyl sealant provided by this invention, through optimized formulation design, significantly improves electrical insulation and flame retardant properties while maintaining the excellent moisture barrier properties of butyl rubber. It also exhibits good application performance, meeting the requirements of high-voltage systems above 2000 V and 6-8 mm narrow-bezel modules. Furthermore, the preparation method of this invention employs a segmented mixing process, selecting appropriate mixing temperatures and speeds based on the characteristics of different components. This ensures thorough dispersion of each component while preventing degradation of active components, guaranteeing the stability and consistency of product performance.
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