Flame-retardant PVC sleeve and preparation method thereof
By using materials such as calcium-zinc stabilizers and active nano-calcium carbonate, a PVC sleeve with high compressive strength, thermal stability, and excellent flame retardant properties was prepared, solving the problem of insufficient material performance in the existing technology and achieving environmentally friendly and efficient material improvement.
CN119283450BActive Publication Date: 2026-05-22RENQIU KAIHUA COMM POWER EQUIP CO LTD
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Patent Information
- Application Number
- CN202411454219.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2026-05-22
- Estimated Expiration
- 2044-10-17
AI Technical Summary
Technical Problem
Existing PVC sleeves have shortcomings in terms of compressive strength, thermal stability and flame retardancy, and traditional stabilizers may cause environmental pollution.
Method used
A calcium-zinc composite stabilizer is used to replace lead salt stabilizers. Combined with active nano-calcium carbonate, activated fibers, and copper mesh, flame-retardant PVC sleeves are prepared through a specific process to enhance the mechanical properties and flame-retardant effect of the material.
Benefits of technology
It improves the compressive strength, thermal stability and flame retardancy of PVC sleeves, reduces the risk of environmental pollution, and enhances the impact strength and thermal conductivity of the material.
✦ Generated by Eureka AI based on patent content.
Abstract
The application relates to the technical field of polyvinyl chloride sleeves, and discloses a flame-retardant PVC sleeve and a preparation method thereof. The flame-retardant PVC sleeve comprises an inner tube, a metal copper mesh coated on the outer side of the inner tube, and an outer tube coated on the outer sides of the metal copper mesh and the inner tube by injection molding. The raw material of the inner tube comprises the following components: 80-150 parts of polyvinyl chloride, 1-3 parts of chlorinated polyethylene, 20-40 parts of active nano calcium carbonate, 1-2 parts of paraffin, 1-2 parts of stearic acid, 1-3 parts of a flame retardant, and 1-2 parts of a calcium-zinc stabilizer. The raw material of the outer tube comprises the following components: 50-120 parts of polyvinyl chloride, 1-5 parts of activated fiber, 10-20 parts of active nano calcium carbonate, 1-2 parts of zeolite powder, 1-2 parts of magnesium oxide, 1-2 parts of paraffin, 1-2 parts of polyethylene wax, 1-2 parts of stearic acid, 1-5 parts of a flame retardant, 1-3 parts of a calcium-zinc stabilizer, and 1-2 parts of a processing aid LPA40. The application further discloses a preparation method of the flame-retardant PVC sleeve.
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