Waterproof hot melt adhesive membrane for TPO waterproof coiled material, preparation method of waterproof hot melt adhesive membrane and TPO waterproof coiled material
The waterproof hot-melt adhesive film prepared by combining resin, rubber, tackifying resin, softener and antioxidant in a specific ratio solves the aging resistance and bonding problems of TPO waterproof membrane, and improves its service life and waterproof performance.
CN120699552APending Publication Date: 2025-09-26FOSHAN XINTAO NEW MATERIAL TECH
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Patent Information
- Application Number
- CN202510989223.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-09-26
AI Technical Summary
Technical Problem
The existing hot melt adhesive for TPO waterproof membranes has insufficient resistance to moisture and heat aging and UV aging, and its flexibility and bonding stability to TPO waterproof substrates need to be improved.
Method used
A waterproof hot-melt adhesive film is prepared by cross-linking electron beam irradiation with resin, rubber, tackifying resin, softener, antioxidant and ultraviolet absorber with active unsaturated functional groups in a specific ratio to improve its aging resistance, adhesion and flexibility.
Benefits of technology
It improves the aging resistance and adhesion of the hot melt adhesive film, extends the service life of the TPO waterproof membrane, reduces the risk of embrittlement, and improves the waterproof performance.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a waterproof hot melt adhesive film for a TPO waterproof coiled material, a preparation method of the waterproof hot melt adhesive film and the TPO waterproof coiled material, and relates to the field of adhesive films for waterproof coiled materials. The waterproof hot melt adhesive film for the TPO waterproof coiled material comprises the following components in parts by weight: 100 parts of a base material, 0.2-1.0 part of an antioxidant and 0.2-1.0 part of an ultraviolet absorbent, the base material is prepared from 5-10 wt% of resin with an active unsaturated functional group, 25-50 wt% of rubber, 30-50 wt% of tackifying resin and 10-20 wt% of a softening agent, the resin with the active unsaturated functional group adopts at least one of aliphatic polyurethane acrylate with the functionality of 2-3 and vinyl ester resin, and the rubber comprises at least one of SIS (styrene-isoprene-styrene) rubber and SBS (styrene-butadiene-styrene) rubber. The waterproof hot melt adhesive film has heat aging resistance, ultraviolet aging resistance, flexibility and bonding stability, and the service life of the TPO waterproof coiled material is prolonged.
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