High-rigidity transparent rigid polyvinyl chloride granule and preparation method thereof
By adding acrylonitrile-styrene resin and toughening additives to the polyvinyl chloride pellets, combining organic tin heat stabilizer and processing modifiers, a composite toughening system is formed, which solves the problem of insufficient rigidity of the polyvinyl chloride pellets and significantly improves its impact resistance and rigidity.
CN119684727APending Publication Date: 2025-03-25WUXI JIAHONG PLASTICS TECH
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Patent Information
- Application Number
- CN202411977158.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
Existing modified polyvinyl chloride pellets are prone to warping or deforming when under pressure or vacuum negative pressure, and are insufficient in rigidity, which limits their application range.
Method used
By adding acrylonitrile-styrene resin and toughening additives, combined with organic tin heat stabilizer and processing modifier, a composite toughening system is formed to improve the rigidity and impact resistance of polyvinyl chloride pellets.
Benefits of technology
It significantly improves the rigidity and impact resistance of polyvinyl chloride pellets, and solves the problems of extruded products being easily warped when under pressure and blow-molded products being easily deformed when under vacuum.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of blending modification, and particularly relates to a high-rigidity transparent hard polyvinyl chloride granule which is prepared from the following components in parts by mass: 100 parts of PVC resin, 20-40 parts of modified resin, 2-4 parts of an organic tin heat stabilizer, 0-5 parts of a toughening aid, 2-4 parts of a lubricant, 20-40 parts of a processing modifier and 1-2 parts of a natural paraffin release agent. The invention further provides a corresponding preparation method. The problems that an existing modified polyvinyl chloride granule extrusion product is prone to warping under pressure, a blow molding product is prone to deformation under vacuum negative pressure and the like are solved, and the rigidity of blended granules can be improved through high physical and mechanical properties of acrylonitrile-styrene resin; the impact resistance is improved by a composite toughening system of the toughening aid and the processing modifier, and the influence on the rigidity of the blended granules is reduced at the same time.
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