Research on the Application and Safety Assurance of Glue-based Automatic Fire Suppression Material in High-Safety Fields

 

In modern industry and daily life, glue, as an indispensable material, is widely used in various fields. When glue is applied to fields with extremely high safety requirements, such as food packaging and medical devices, its safety must be strictly guaranteed. Glue-based Automatic Fire Suppression Material (AFSM glue for short hereinafter) demonstrates unique properties and advantages in meeting these strict safety standards.

Strict Safety Requirements for Glue in the Food Packaging Field

Food packaging is in direct contact with food, and its safety is of utmost importance. Once there are safety hazards in the packaging glue, harmful substances may migrate into the food, posing a serious threat to human health. Globally, countries have formulated strict regulations and standards for food contact materials, regulating the composition, migration amount, etc. of glues used in food packaging.

In China, GB 4806.15 – 2024 “National Food Safety Standard – Adhesives for Food Contact Materials and Products” provides detailed specifications for the use of adhesives for food contact materials and products, clarifying the limits of use, migration tests, testing methods, etc., to ensure that adhesives will not migrate harmful substances into food during actual use. The US Food and Drug Administration (FDA) lists the allowable substances and their maximum usage limits, focusing on the management of substances. The European Union also has a complete regulatory system for food contact materials, putting forward strict requirements for the safety of glues.

These standards and regulations mainly focus on the toxicity and migration of glue components. In terms of toxicity, it is required that glues should not contain harmful substances such as heavy metals (such as lead, mercury, cadmium, etc.), polycyclic aromatic hydrocarbons, phthalates, etc. These substances may cause damage to the human nervous system, endocrine system, reproductive system, etc. In terms of migration, the migration limits of glue components into food are specified to ensure that under normal use conditions, the substances migrating into food will not pose a risk to human health.

Safety Assurance Mechanisms of AFSM Glue in Food Packaging

Strict Screening and Control of Raw Materials

During the production process of Automatic Fire Suppression Material glue, the raw materials are strictly screened. Basic raw materials and additives that meet the food contact safety standards are selected to eliminate the introduction of harmful substances from the source. The basic raw materials go through multiple detection processes to ensure their purity and safety. The use of additives also strictly follows relevant standards. Only additives approved for use in food contact materials are selected, and their usage is strictly controlled.

Advanced Production Processes to Reduce the Generation of Harmful Substances

Advanced production processes are adopted to reduce the generation of harmful substances during the production process. Optimize the reaction conditions to improve the selectivity and conversion rate of the reaction and avoid the generation of harmful substances due to side reactions. At the same time, effectively remove the impurities in the production process to ensure the purity of the glue. In the synthesis process of the glue, precisely control parameters such as temperature, pressure, and reaction time to ensure the stability and safety of the product quality.

Low Migration Characteristics to Ensure Food Safety

AFSM glue has low migration characteristics, which is the key to meeting the safety requirements of food packaging. Through the design of a special molecular structure, a tight bond is formed between the glue molecules and the packaging material molecules, reducing the migration of glue components into food. In practical applications, after strict migration tests, it is ensured that under various simulated food conditions, the migration amount of AFSM glue is far below the national standard limits.

Strict Quality Detection System

A strict quality detection system has been established, and comprehensive detection is carried out for each batch of AFSM glue. In addition to routine physical property tests (such as viscosity, curing time, bonding strength, etc.), safety detection is also a key focus. Advanced detection equipment and methods, such as high-performance liquid chromatography – mass spectrometry (HPLC – MS), gas chromatography – mass spectrometry (GC – MS), etc., are used to accurately detect the composition and migration amount of the glue to ensure that the product meets food safety standards.

Special Safety Requirements for Glue in the Medical Device Field

The safety of medical devices is directly related to the life and health of patients, so more special requirements are put forward for the glues used. Medical device glues not only need to meet the performance requirements of general industrial glues (such as heat resistance, aging resistance, high strength, etc.), but also need to pass a series of strict biological evaluations and sterilization and disinfection resistance tests.

Biological evaluation includes cytotoxicity tests, hemolysis tests, sensitization tests, genotoxicity tests, etc., to ensure that the glue will not have adverse effects on human cells, blood components, adjacent tissues, and the overall biological system. The sterilization and disinfection resistance test requires that the glue can withstand various sterilization methods, such as high-temperature and high-pressure steam sterilization, ethylene oxide sterilization, gamma-ray sterilization, etc. During the sterilization process, it will not degrade, deform, lose its bonding performance, etc., and will not produce harmful substances to contaminate medical devices.

Safe Application Strategies of AFSM Glue in Medical Devices

Biocompatibility Design and Certification

Automatic fire suppression material glue fully considers biocompatibility in its design. Biocompatible raw materials are selected, and through special formula design and synthesis processes, the glue is non-toxic, non-irritating, and non-sensitizing to human tissues and cells after curing. The product has passed international authoritative biocompatibility certifications, such as the ISO 10993 standard certification, proving that it can be safely applied in the medical device field.

Optimization of Sterilization and Disinfection Resistance Performance

Aiming at the commonly used sterilization methods for medical devices, the sterilization and disinfection resistance performance of AFSM glue is optimized. By improving the chemical structure and formula of the glue, its stability under conditions such as high temperature, high pressure, strong oxidants, and high-energy rays is enhanced. Under the condition of high-temperature and high-pressure steam sterilization, AFSM glue can maintain good bonding performance and physical properties and will not fail due to changes in temperature and humidity. After multiple sterilization cycle tests, it is proved that it can meet the requirements of multiple uses and sterilizations of medical devices.

Compatibility with Medical Device Materials

Ensure that AFSM glue has good compatibility with commonly used materials for medical devices (such as metals, plastics, rubbers, glass, etc.). During the bonding process, it will not chemically react with the bonded materials, affecting the performance of the materials and the safety of the devices. Through a large number of compatibility tests, the glue formula that is most suitable for bonding with various medical device materials is screened out to ensure that a firm and stable bonding joint can be formed in practical applications.

Strict Quality Control in the Production Process

In the production process of AFSM glue for medical devices, a strict quality control system is implemented. From raw material procurement, production process control, product inspection to packaging and storage, each link follows strict standards and specifications. The production workshop meets the requirements of the Good Manufacturing Practice (GMP) for medical device production to ensure that the product is produced in a pollution-free environment. Comprehensive performance tests and safety tests are carried out for each batch of products, and only products that pass the tests can enter the market.

Glue-based AFSM can meet the relevant strict safety standards in fields with extremely high safety requirements such as food packaging and medical devices through multiple measures such as raw material control, production process optimization, performance design, and strict quality inspection, ensuring that it will not cause harm to human health. With the continuous progress of science and technology and the increasingly strict safety standards, AFSM glue will continue to innovate and develop, providing more reliable bonding solutions for these high-safety fields.

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