The material research and development of antibacterial PVC baseball can be carried out from the directions of the selection and modification methods of antibacterial agents, the balance between antibacterial effect and mechanical properties, the optimization of processing technology, safety and environmental protection, and adaptability to special environments. The following is a specific analysis:
Selection and modification methods of antibacterial agents
Organic antibacterial agents: Quaternary ammonium WIV-dimethylethylenediamine (QDHD) and other organic antibacterial agents can be selected and combined with PVC through blending modification. This modification method can effectively improve the hydrophilicity of PVC, reduce the water contact Angle, and endow PVC material with good antibacterial properties. At the same time, it does not significantly affect its mechanical properties, and also has good biocompatibility, no hemolysis and cytotoxicity.
Inorganic antibacterial agents: For instance, silver-based antibacterial agents can be prepared through special processes, such as mixing natural zeolite with sodium chloride solution, calcining it, then treating it in copper chloride solution and silver nitrate solution, and finally mixing and stirring it with other substances, to produce antibacterial modification AIDS for the antibacterial modification of PVC.
Organic-inorganic composite antibacterial system: By combining the advantages of organic and inorganic antibacterial agents, a composite antibacterial system is developed to achieve more efficient, broad-spectrum and long-lasting antibacterial effects.
The balance between antibacterial effect and mechanical properties
Optimization of antibacterial agent addition amount: Study the influence of different addition amounts of antibacterial agents on the antibacterial and mechanical properties of PVC baseball, find the optimal addition amount range, and minimize the negative impact on the mechanical properties of the material while ensuring good antibacterial effect.
The synergistic effect of plasticizers and antibacterial agents: Selecting the appropriate plasticizer to work in synergy with the antibacterial agent not only ensures the flexibility and processing performance of PVC materials but also fully exploits the antibacterial effect of the antibacterial agent.
Optimization of processing technology
Blending process: Optimize the blending process of the antibacterial agent and PVC to ensure that the antibacterial agent is uniformly dispersed in the PVC matrix and avoid agglomeration, thereby enhancing the stability and durability of the antibacterial effect.
Molding process: According to the characteristics of the antibacterial PVC material, adjust the molding process parameters such as temperature, pressure, and time to ensure the dimensional accuracy and surface quality of the baseball, while ensuring that the antibacterial performance is not affected.
Safety and environmental friendliness
The safety of antibacterial agents: Ensure that the selected antibacterial agents meet the prescribed hygiene and safety standards, so that the final antibacterial PVC baseball product is non-toxic, odorless and harmless to the environment.
Development of environmentally friendly antibacterial PVC materials: Research on degradable or recyclable antibacterial PVC materials to reduce environmental pollution and meet the requirements of sustainable development.
Special environmental adaptability
Weather resistance: Considering the use of antibacterial PVC baseball under different environmental conditions, such as high temperature, humidity, and ultraviolet radiation, by adding corresponding additives or modification methods, the weather resistance of the material can be enhanced to ensure the long-term stability of its antibacterial performance.
Wear resistance: During use, baseball is subject to frequent impacts and friction. Therefore, it is necessary to ensure that the antibacterial PVC material has good wear resistance to extend the service life of the baseball.