Polyurethane adhesive as well as preparation method and application thereof
By combining raw materials such as pretreated polyether polyols, aromatic polyester polyols and bisphenol A polyether polyols with isocyanate, polyurethane adhesive is formed, which solves the problem of insufficient odor grade of polyurethane adhesive under high temperature conditions in the prior art, and achieves efficient bonding performance and impact resistance, which is suitable for automotive interiors and home decoration.
CN119709087APending Publication Date: 2025-03-28JIANGSU CHANGNENG ENERGY SAVING NEW MATERIALS SCI & TECH
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Patent Information
- Application Number
- CN202510037192.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The odor level of existing polyurethane adhesives cannot meet the needs of automotive interiors and home decoration under high temperature conditions, and is prone to falling off during vibration.
Method used
The polyether polyol, aromatic polyester polyol and bisphenol A polyether polyol are used to pretreat the film evaporator to form a polyurethane adhesive with isocyanate to improve its adhesive performance and odor grade.
Benefits of technology
The odor level of polyurethane adhesive under high temperature conditions is achieved to reach 3.0, which enhances its adhesive performance and impact resistance to the substrate, and is suitable for the bonding of SMC substrates to metals or ceramic tiles.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a polyurethane adhesive and a preparation method and application thereof.The polyurethane adhesive is prepared from, by mass, a component A and a component B. The mass ratio of the component A to the component B is 1: (0.2-0.5), and the component A comprises, by mass, 15-45 parts of polyether polyol, 20-45 parts of aromatic polyester polyol, 2-7 parts of bisphenol A polyether polyol, 20-40 parts of filler and 0-2 parts of auxiliaries; the component B comprises the following component in parts by weight: 100 parts of isocyanate. The polyurethane adhesive has the characteristics of high bonding strength, low odor and vibration resistance, and is particularly suitable for bonding SMC (Sheet Molding Compound) substrates with metals and ceramic tiles.
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