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    The current position:Home > Industry news

FR of H-free doesn't mean environmental protection

source:This site Count:2407 Update Time:2013-03-14

Popular in today's society "halogen-free environmental protection" argument, flame retardant industry experts recently held in Xiamen, China Flame Retardant Society 2012 annual meeting of explicitly proposed "environmentally friendly halogen-free not synonymous with" point of view, and get generally accepted by the industry.
    China Flame Retardant Society Secretary-General Zhou Zheng Mao proposed scientific look at the various types of fire retardant, halogen-containing and halogen-free flame retardants, new technology, new product development should be balanced development, not simply that halogen-free environmental protection. Sichuan University professor Wang Yuzhong, professor at the University of Science and Technology of China, Hu source also expressed the same view. These experts believe that the judgment flame retardant environmentally friendly or not, and if any of them contain halogen is not necessarily linked.
    This reporter has learned that many types of flame retardant (flame retardant masterbatch) in accordance with the classification of chemical elements, can be divided into have halogen flame retardant and halogen-free flame retardants. Halogen flame retardant include bromine or chlorine-containing flame retardants, wherein the organic bromine-based flame retardant; halogen flame retardant include phosphorus-based, phosphorus - nitrogen, inorganic metal hydroxide (aluminum hydroxide , magnesium hydroxide), boron, silicon, molybdenum-based, and the like. Different flame retardant characteristics of each different application areas play their respective advantages, and halogen-containing flame retardants play an irreplaceable role in specific areas.
    A large number of scientific experiments and research results show that most halogen flame retardants no negative impact on the ecological environment and human health, these flame retardants long-term commitment to the important task of fire-retardant and fire safety; same time, some halogen-free flame retardant not, as emphasized in the past, some people, that is environmentally friendly halogen-free. An obvious example is in the relevant laws and regulations in Europe, some halogen-free flame retardants with dangerous chemical labels, such as H400 and H410 in the aquatic environment is toxic.
    From a technical perspective, halogen-free and can not be used as a synonym for environment friendly flame retardants. Decision chemical toxicological properties of the elements of its chemical structure, rather than truly environmentally friendly flame retardants should be non-toxic or very low toxicity, difficult access to biological tissue or bio-accumulate, release to the environment is unlikely resistance flame retardants. Requires special attention, in considering the environmental protection, should be obtained from the raw material, production, use the entire life cycle to recycling as a standard to measure. Studies have shown that the advantages in reducing carbon emissions from the entire life-cycle perspective, the halogen-containing brominated flame retardants.
    In addition, when we focus on a flame retardant is environmentally friendly, can not be ignored as a flame retardant to meet the basic requirements, that will meet the requirements of the fire safety standards and regulations, and other relevant laws and regulations to meet regulatory rules, such as chemicals requirements, and whether it can meet the basic physical and mechanical properties of the products.
    Han Songqing stressed, a flame retardant based on the individuals rather than family (e.g., bromine, phosphorus, or Halogen, etc.) to assess. Already on the international the flame retardants assessment data and results, and to provide users with sufficient choice basis, especially used brominated flame retardants have been a variety of assessments, has accumulated a large amount of data for downstream users preferred The products provide a scientific basis. Users considering efficacy, economic, and environmental benefits of several factors, and to make the best choice for each product.
    Also expressed its recognition by the producers and users of many flame retardant halogen flame retardant is not equal to the reference to green. Large international electronics manufacturer representatives, halogen-free flame retardants in certain application areas, as well as products of the physical and mechanical properties, processing and performance do exist some shortcomings. Especially in the current international endless stream of electrical and electronic new replacement faster production and consumption continue to grow, driven by a rise in flame retardants, also improve consumer product fire protection requirements. At the same time, the increasingly stringent flame retardant and safety standards on the international concern retardant properties of electrical and electronic products, efficient, safe, cost-effective flame retardants increasingly sought after by the market. Therefore, they believe, halogen flame retardants and halogen-free flame retardant, environmental protection, low toxicity, high efficiency, multi-function should flame retardants common development direction.