Non-halogenated flame retardants explore issues
2013-11-25 by seoer8
Fire flame retardant products as people improve the environmental requirements and safety performance requirements , flame retardant product development toward non-polluting , non-toxic , environmentally friendly, economical direction. Retardant additives there are always new products appear. Xiaobian for you to explore and look , no halogenated flame retardants problem .
Halogen-free flame retardant and halogen -based flame retardants have different performance , strengths and weaknesses and areas of application , not favoritism. Balanced and coordinated development of different flame retardants should play an important role in each of fire safety . According to whether they contain halogen elements ( mainly bromine and chlorine ) , halogen flame retardants can be divided into two categories , and halogen-free flame retardants . Among them, halogenated flame retardants ( mainly brominated flame retardants ) development of an early start , mature technology, the number had nearly a hundred species , common products decabromodiphenyl ether, decabromodiphenyl ethane, tetrabromobisphenol phenol a, six HBCD , etc. ; and halogen-free flame retardants late start, common products, including phosphates , phosphorus flame retardants such as red phosphorus , nitrogen and other public familiar with melamine and hydroxide flame retardants aluminum hydroxide and magnesium hydroxide flame retardant inorganic minerals . At present , China modified plastics flame retardants used in halogen -based flame retardants , electrical and electronic products mostly contain halogenated flame retardants . Therefore, in the Chinese market , halogen flame retardant has a pivotal position , and showed a steady growth momentum of development.
Flame retardants are environmentally friendly, is not determined by any organization and eco-labeling , but by the structure and properties of flame retardant own decision . Environmentally friendly flame retardants must meet the following three conditions : First, the green flame retardants must be non- PBT substance (PBT: Persistent, bio-accumulative and toxic)), namely the release of chemicals to the environment does not have a persistent , bioaccumulative and toxicity , and should be non- CMR substances (CMR: Carcinogenic, mutagenic or toxic for reproduction), that is not carcinogenic to humans , reproductive toxicity induced mutations and other aspects ; secondly , green flame throughout the product life cycle , Whether in the upstream raw material extraction, production or use of recycled or downstream transport links, minimal environmental impact , environmentally friendly flame retardant respond to environmental release small , in the life cycle emissions of less internal friction and can facilitate recycling ; Finally, the green flame retardants must meet regulatory and performance requirements related regulations. Based on the above three criteria , most halogen flame retardant is green . In addition, based on any chemicals , including flame retardants may be at risk yet to be discovered , a large producer of flame retardants also actively organized a " controlled release Voluntary Action Plan (VECAP)", called active producers and downstream users continue to improve process , recycling bags, reducing the release of flame to the environment to minimize the potential harm . Halogen-free and halogen correct view .
Halogen-free flame retardant and halogen -based flame retardants have different performance , strengths and weaknesses and areas of application , not favoritism. Regulators , industry organizations and industry chain should focus on individual problems and even have some regulations banned the product , rather than a stick and killed a large class of products, such as all or halogen flame retardant halogen-free flame retardants. We should be aware , halogen-free flame retardants are not only indicates that contain bromine , chlorine, fluorine , iodine, astatine these five halogen elements , neither on behalf of environmental protection, can not represent the direction of development of the industry . Balanced and coordinated development of different flame retardants should play an important role in each of fire safety .
keywords: pvc-additive
