Aromatic polyamide surface felt and preparation method thereof
The preparation of aromatic polyamide surface felt by wet method is solved, and the problems of composite surface reinforcement, lightweighting and insufficient resin wettability are achieved, and high-performance surface felt has a wide application potential.
CN119754078AActive Publication Date: 2025-04-04YANTAI TAYHO ADVANCED MATERIALS RES INST CO LTD
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Patent Information
- Application Number
- CN202510244819.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2045-03-04
AI Technical Summary
Technical Problem
Problems of surface reinforcement, lightweighting and insufficient resin wetting properties of existing composite materials.
Method used
The aramid surface mat is prepared by wet method. By uniformly dispersing the dispersant and defoaming agent in white water, dispersing the aramid fibers to form a fiber dispersed slurry. After the scribing, wetting agent and adhesive are applied, dried and heat-treated.
Benefits of technology
It realizes good mechanical properties, dimensional stability and chemical stability of the aromatic polyamide surface felt, flexible and adjustable weight, good breathability, excellent resin wetting, and is suitable for composite materials.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the technical field of fiber fabric materials, and specifically to an aromatic polyamide surface felt and a preparation method thereof, wherein the preparation method comprises: S1, uniformly dispersing a dispersant and a defoaming agent in water to prepare white water; the dispersant comprises an ionic dispersant and a thickening dispersant; S2, dissociating and dispersing aramid fibers in white water to prepare a fiber dispersion slurry; S3, using the fiber dispersion slurry to paper-make a fiber web; S4, applying a wetting agent and an adhesive on the surface of the fiber web; S5, drying and heat-treating to obtain the aromatic polyamide surface felt. The surface felt has good mechanical properties, dimensional stability, chemical stability, flexible and adjustable gram weight, good air permeability, and excellent resin impregnation, and has great application potential in the application field of composite material structural parts.
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