A blue-black polyurethane adhesive and its preparation method and application
By using blue-black polyurethane adhesive prepared with molecular grade organic dyes, the existing black aluminum-plastic film has been solved, with high production cost, difficult process and poor high-temperature and humidity resistance, and a more economical and efficient aluminum-plastic film preparation process has been achieved, and the product performance has been improved.
CN116355574BActive Publication Date: 2025-03-18JIANGXI SHENGWEI MATERIAL CO LTD +1
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Patent Information
- Application Number
- CN202310319179.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2043-03-29
AI Technical Summary
Technical Problem
While ensuring performance, the black aluminum-plastic film for existing lithium-ion batteries has high production costs, high process difficulty, and poor high temperature and humidity resistance.
Method used
A blue-black polyurethane adhesive is prepared using molecular-grade organic dyes. By dissolving the molecular-grade organic dye in the second organic solvent, combining polyols and isocyanate curing agents, a adhesive with good compatibility is formed.
Benefits of technology
While ensuring the original performance of aluminum-plastic film of lithium-ion batteries, it reduces production costs and construction difficulties, improves economic benefits, and significantly improves high temperature and high humidity resistance.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a blue-black polyurethane adhesive and a preparation method thereof. The blue-black polyurethane adhesive comprises 10-20 parts of an organic blue-black paste, 100 parts of a polyol, 10-20 parts of a curing agent, and 50-100 parts of a first organic solvent by weight. The organic blue-black paste is prepared by dissolving a molecular-level organic dye in a second organic solvent, and the molecular-level organic dye is an azine derivative. The blue-black polyurethane adhesive can reduce production costs and construction difficulties while ensuring the original performance of a lithium-ion battery aluminum-plastic film, thereby improving economic benefits. The invention also provides an application of the blue-black polyurethane adhesive in a lithium battery aluminum-plastic film. The blue-black adhesive is used for bonding between a nylon layer and an aluminum foil layer to obtain a lithium battery aluminum-plastic film, which has a uniform and elegant appearance, good modification and anti-counterfeiting effects, and solves the problems of difficult control of the production process of a traditional inorganic black adhesive coloring aluminum-plastic film, low peel strength, and poor resistance to high temperature, high humidity, and boiling.
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