How does Hexamethylene diisocyanate affect workers’ health?

How does Hexamethylene diisocyanate affect workers’ health?
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Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) is a common chemical in the manufacturing industry, but its impact on workers’ health is often overlooked. This article will help you understand the potential risks and protective measures when working with this chemical in an industrial environment.

1. What is Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate)?

The chemical formula C8H12N2O2 represents an organic compound known as a type of isocyanate. This chemical has a molecular structure consisting of eight carbon atoms, twelve hydrogen atoms, two nitrogen atoms, and two oxygen atoms. This substance is commonly used in the production of plastics, paints, and elastic materials. It has the ability to react strongly with amine and hydroxyl groups, making it widely applicable in the industry of manufacturing rubber products, insulating materials, and flame retardants.

In particular, this compound has an isocyanate group (-NCO) in its molecular structure, which is a group capable of combining with other functional groups in chemical reactions, creating cross-links in the production process of plastic and rubber materials. Thanks to this property, the final product has high durability, abrasion resistance, and good elasticity.

No. Chemical Name in Vietnamese Chemical Name in English HS Code CAS Number Chemical Formula
1. Hexametylen diisoxyanat Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) 29291090 822-06-0 C8H12N2O2

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2. Where does Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) originate from in the production process?

During the production process, this compound is primarily generated from processes involving the processing and manufacturing of isocyanate-containing materials. It is created during the reaction between hexamethylene diamine and phosgene, a chemical compound widely used in the chemical industry. This process takes place at high temperatures and requires precise reaction conditions to produce high-purity hexamethylene diisocyanate.

In addition, this compound can also be generated during the manufacturing of rubber products, paints, and plastics when raw materials such as polyurethane or isocyanate-containing adhesives are used. When these materials are heat-treated or during mechanical processing, this chemical can be released into the air as a gas or fine dust, posing an exposure risk to workers.

Particularly in plastic and rubber manufacturing plants, where polyurethanes and adhesives containing isocyanate groups are commonly used, the generation of hexamethylene diisocyanate occurs frequently.


3. Industries that use Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) in production

This compound is widely used in many industries, especially in the production of plastics, rubber, and composite materials. One of its main applications is in the manufacturing of polyurethane, a type of plastic with high durability, good elasticity, and abrasion resistance. Polyurethane is used in the production of cushions, soundproofing materials, insulation materials, and engineering plastics, creating a large market for hexamethylene diisocyanate.

In addition, this compound is also present in the paint and surface coatings industry, where it is used to create highly durable, scratch-resistant, and waterproof paint layers. Industrial paints, automotive paints, and other decorative paints often contain hexamethylene diisocyanate to enhance the quality and durability of the coating.

In the rubber manufacturing industry, this compound is used to produce synthetic rubbers and other elastic materials. Products such as rubber cushions, tires, and automotive components also use polyurethane or materials containing hexamethylene diisocyanate.

Besides, this compound also appears in the electrical insulation material manufacturing industry, where it helps improve the thermal and mechanical stability of electronic products, helping to ensure the long-term performance of electrical devices.


4. How does Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) affect workers?

This chemical can cause many adverse health effects for workers if appropriate protective measures are not in place. One of the most serious effects is on the respiratory system. When workers inhale dust or gas containing this compound, it can cause respiratory inflammation, coughing, difficulty breathing, and even occupational asthma. These symptoms often appear after a long period of exposure and can lead to chronic diseases if not controlled in time.

Besides the respiratory system, this compound can also have a negative impact on the skin. Direct contact with this substance can cause skin irritation, rashes, itching, or dermatitis. In severe cases, long-term contact can lead to skin diseases such as allergic contact dermatitis. People working in unprotected environments or not following safety measures will be at high risk of being affected.

Another harmful effect of this compound is its potential to affect the nervous system and overall health. Although research on this impact is still ongoing, some studies have shown that long-term exposure to hexamethylene diisocyanate can cause fatigue, headaches, dizziness, and reduced concentration. This can reduce work efficiency and increase the risk of occupational accidents in manufacturing plants.


5. Permissible safe concentration of Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) for human exposure

To protect workers’ health, regulatory authorities have established maximum safe concentration levels for this chemical in the workplace. According to international standards, the maximum concentration of this compound in the air that a worker can be exposed to during an 8-hour work shift is 0.005 ppm (parts per million). However, this concentration may vary depending on each country and specific regulations in different industries.

To ensure worker health, organizations such as OSHA (the U.S. Occupational Safety and Health Administration) and ACGIH (the American Conference of Governmental Industrial Hygienists) have also recommended that the concentration of hexamethylene diisocyanate in the air must always be maintained below the specified limit. If the concentration exceeds this level, there is a risk of causing serious health problems for workers, especially for those who work long-term in an environment containing this chemical.

At a basic level, when working in an industrial environment, it is important to adhere to safety standards and limit exposure to Hexamethylene diisocyanate. Organizations such as the Occupational Safety and Health Administration (OSHA) in the United States provide guidelines and safety principles to protect workers from the negative impacts of chemical substances.


6. Measures to minimize the impact of Hexamethylene diisocyanate (1,6-Hexamethylene diisocyanate) on workers’ health

To minimize the impact of this chemical on workers’ health, applying safety measures is very important. One of the most effective methods is to control the concentration of hexamethylene diisocyanate in the air in work areas. Effective ventilation systems should be installed and maintained to reduce the concentration of this compound in the air, helping to create a safer working environment. The use of dust extractors or air filtration systems is also very important to remove dust and gas containing hexamethylene diisocyanate.

In addition, personal protective equipment (PPE) is an indispensable part of protecting workers. Air-purifying respirators, gloves, safety glasses, and specialized protective clothing should be used when working in an environment with a risk of exposure to this chemical. Workers need to be trained to use protective equipment correctly and to ensure there are no gaps in protecting the body.

Regular health monitoring of workers is also an important measure to detect early signs of health effects from exposure to hexamethylene diisocyanate. Regular medical check-ups help to detect respiratory, skin, or neurological-related diseases early, allowing for timely treatment.

In addition, measures to improve the production process also contribute to reducing the risk of chemical exposure. Replacing hexamethylene diisocyanate with less toxic chemicals in the production process can be a long-term solution to protect workers’ health. Factories also need to have detailed risk management procedures, including emergency response steps in case of a leak or unwanted exposure to the chemical.

In summary, a combination of controlling the work environment, using personal protective equipment, monitoring workers’ health, and improving production processes are necessary measures to minimize the impact of hexamethylene diisocyanate on workers’ health.

Occupational safety training: Workers need to be trained and educated on the risks and safety measures when working with this type of chemical. This training should be provided periodically and regularly to ensure understanding and proper compliance with safety rules.

Periodically organize occupational environment monitoring in factories and enterprises, collect and analyze factors harmful to workers, and thereby adjust to reduce hazard levels to prevent occupational diseases for them.


7. National Occupational Environment Monitoring Center

Nam Viet’s Occupational Environment Monitoring Center is a professional unit specializing in monitoring and measuring the quality of the working environment across all provinces in Vietnam. With a team of experienced monitoring specialists, the center uses modern measuring equipment to ensure accuracy and reliability.

REGISTER FOR OCCUPATIONAL ENVIRONMENT MONITORING SERVICES

In addition to providing monitoring services, the center also assists clients in planning, handling, and tracking issues related to the occupational environment. With the motto “the customer is the center,” the center focuses on customer satisfaction, meets all customer needs, and is committed to providing the best solutions for businesses.

With investment in techniques, technology, and human resources, Nam Viet’s monitoring center has become one of the reputable units in the field of occupational environment monitoring in Ho Chi Minh City with the following objectives:

  • We always value our brand reputation and the quality of our products and services.
  • We provide our customers with the best and most suitable solutions possible.
  • With a team of experienced and specialized Masters and Engineers, we aim to protect the environment and benefit businesses.
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  • By choosing the Nam Viet Environmental Monitoring team, your company will receive professional service from experts in the monitoring field. You will also receive the best cost incentives.

8. Quotation for Occupational Environment Monitoring

To help businesses conduct occupational environment monitoring professionally and effectively, Nam Viet provides our customers with a quality and reasonably priced quotation for occupational environment monitoring services.

  • Our monitoring quotation provides detailed information on the pricing of the monitoring services we offer. This includes costs related to travel, measurement, analysis, and reporting of results. Customers can be completely assured of the accuracy and reliability of the monitoring result reports we provide.
  • We are committed to always offering the most competitive and reasonable prices on the market, and we are also always ready to provide consultation and answer any questions about our monitoring services quickly and professionally.
  • With Nam Viet’s monitoring quotation, customers can easily choose service packages that suit their needs. We are committed to bringing our customers the highest satisfaction with professional quality service.

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