Weather-resistant PP composite material and preparation method thereof
CN119708700AActive Publication Date: 2025-03-28JIANGXI XULIAN NEW MATERIAL CO LTD
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Patent Information
- Application Number
- CN202510233941.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2045-02-28
AI Technical Summary
Technical Problem
Polypropylene materials have poor weather resistance, and problems such as discoloration and brittleness will occur when used outdoors for a long time, which will affect the normal use of the material.
Method used
Using a modified filler, a maleimide structure is formed by pretreating on graphene oxide and reacting with maleic anhydride, and combining with the use of a modifier, the weather resistance of the PP composite material is enhanced.
Benefits of technology
It improves the weather resistance of PP composite materials, prevents the molecular chain from oxidizing by ultraviolet light, and enhances the mechanical properties of the materials, so that the material will not become significantly brittle when used outdoors for a long time.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a weather-resistant PP composite material and a preparation method thereof, and relates to the technical field of PP material preparation, the PP composite material is prepared from 80-100 parts of PP master batch, 10-15 parts of modified filler, 1-1.5 parts of titanium dioxide, 0.5-0.8 part of dicumyl peroxide and 2-5 parts of dibutyl phthalate, in a raw material basic process, a maleimide structure on the surface of the modified filler is grafted with a PP molecular chain, an organic silicon chain segment containing a benzotriazole structure is inserted into the molecular chain, and when the modified filler is irradiated by ultraviolet light, hydrogen bonds in an intramolecular hydrogen bond chelating ring formed by hydroxyl and nitrogen on triazolyl are broken or form an optical tautomer, so that the modified filler is formed. By adding graphene, harmful ultraviolet light energy can be converted into harmless heat energy to be released, direct action of part of light on molecular chains can be shielded by adding graphene, and the mechanical property of the material is improved by the action of graphene and imine bonds, so that the material does not have obvious embrittlement phenomenon after being used outdoors for a long time.
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