We often encounter situations where items come apart. Sometimes, something we bought not long ago is accidentally damaged. It would be a pity to replace it with a new one. At such times, glue comes in handy. As is known to all, glue is an intermediate that connects two materials. But how can it be used if it deteriorates? In the production of glue, to extend the service life of the product, glue anti-mold agents are definitely added The conditions for the survival of microorganisms when glue deteriorates

Among household cleaning products, dishwashing liquid is a powerful assistant in removing grease stains from tableware and kitchen utensils. However, due to the large amount of water and organic nutrients in its composition,

Adding antibacterial agents in additive manufacturing (3D printing) can significantly enhance the functionality and safety of printed products, especially in fields with strict hygiene requirements such as medical care, food packaging, and public health, where it holds significant application value. The following is a detailed analysis of the core role of antibacterial agents in additive manufacturing and their specific application scenarios: I. The Core Role of Antibacterial Agents Inhibit the growth and reproduction of microorganisms Antibacterial agents directly kill or inhibit the activity of bacteria, fungi and other microorganisms by destroying the cell walls of bacteria, interfering with metabolic processes or inhibiting DNA replication. For example: Nano-silver: It releases silver ions to penetrate the cell membrane and combine with sulfur groups in proteins, leading to the death of bacteria. Nano zinc oxide: It generates hydrogen peroxide through photocatalysis, oxidizes the structure of bacterial cells, and simultaneously releases zinc ions to interfere with enzyme activity. Quaternary ammonium salts: Adsorbed on the surface of bacteria, they damage the integrity of cell membranes and cause leakage of contents. Prevent cross-infection In the medical field, the surfaces of 3D-printed implants, surgical instruments or prosthetic limbs are prone to becoming breeding grounds for bacteria. Adding antibacterial agents can form a sustained antibacterial barrier and reduce the risk of postoperative infection. For example: Orthopedic implants: The surface of 3D-printed titanium alloy bone screws is loaded with an antibacterial coating, which can inhibit the adhesion of drug-resistant bacteria such as Staphylococcus aureus. Respiratory tract stents: Stents printed with antibacterial PLA material can reduce complications of pulmonary infection. Extend the service life of the product

I. The Core Role of antibacterial and antifungal agents in shoe material fiberboard Shoe material fiberboard (such as midsoles, linings, insoles, etc.) contains organic matter (proteins, animal fats) and is in a humid environment, which is very likely to breed mold and bacteria, causing the products to become moldy, have an unpleasant smell, and even rot. Antibacterial and antifungal agents achieve the following functions by disrupting the cellular structure or metabolic processes of microorganisms:

I. Mechanism of Action: Multi-dimensional inhibition of microbial growth Cell membrane destruction: Metal ions (such as silver and zinc) and some organic molecules penetrate the cell membrane of microorganisms, causing cytoplasmic leakage and leading to cell death. Metabolic inhibition: Organic compounds (such as quaternary ammonium salts and pyridines) disrupt the energy production systems of microorganisms by inhibiting enzyme activity, thereby blocking their growth and reproduction.

Antibacterial agents for water-based color steel paint can achieve antibacterial effects by destroying the cell structure or metabolic process of microorganisms. Common types include organic, inorganic and compound antibacterial agents.

Wristbands and watch straps, as close-fitting items that are in long-term contact with the skin and prone to sweat and environmental moisture, are high-frequency scenarios for the growth of bacteria and mold (for instance, the oils and dander in sweat provide nutrients for microorganisms, and a humid environment accelerates the reproduction of mold, which may lead to skin discomfort, unpleasant odors or mold growth of materials).

Polyethylene anti-corrosion steel pipes are widely used in water supply, drainage, gas transmission and other fields. If their surfaces and interiors are kept in a damp and nutrient-rich environment for a long time, they are prone to breed bacteria,

Antibacterial agent for cast PE film, broad-spectrum and highly efficient, with an antibacterial rate of 99.9%

In the medical field, catheters, as key devices connecting the inside and outside of the human body or different parts within the body, are widely used in scenarios such as drainage, drug administration, interventional diagnosis and treatment, and monitoring. However, the direct contact of the catheter with body fluids and blood makes it a breeding ground for microorganisms, significantly increasing the risk of nosocomial infection. According to statistics, the global medical expenses caused by catheter-related infections exceed several billion US dollars each year, among which urinary tract infections associated with catheters and central venous catheter-related bloodstream infections account for a relatively high proportion. Therefore, adding antibacterial agents in catheter production has become a core strategy for enhancing medical safety. I. The Core Role of Antibacterial Agents in Catheter Production