The hottest plastic flame retardant industry calls

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The plastic flame retardant industry calls for the national unified standard

building fire ranks first in the fires of all countries in the world, which is seriously harmful to people's lives and property. All countries have successively formulated fire prevention codes or standards for indoor and outdoor building decoration materials. With the more and more extensive application of chemical building materials, plastic flame retardants are also gradually developed, and products are constantly upgraded. At the 9th China International composite industry technology exhibition held on September 5, the booth of Jinling DSM resin Co., Ltd., a joint venture between China and the Netherlands, was particularly eye-catching. They had the world's advanced level of flame retardant product display and related technology explanation, which attracted many people inside and outside the industry to come for consultation. From their concerns about the development status of fire-retardant chemical materials and flame retardants in China, people felt, At present, the fire safety of domestic plastic products is very serious, and the relevant standards of flame retardant products have yet to be formulated

Li Guangyu, the technical support department of the company, especially emphasized that fire and smoke are the main factors threatening personal safety, among which the toxic gases released by the combustion of various substances pose a threat to human body. Statistics show that more than 80% of fire deaths are related to the inhalation of toxic smoke. If low smoke and low toxicity fireproof materials are used, most of the above situations can be avoided. The use of flame retardants can effectively control the amount of smoke and toxic gas released by plastic products in fire. It can make plastic materials flame retardant, self extinguishing and smoke suppression, so as to improve the fire safety performance of plastic products, especially in chemical building materials. Flame retardant has now become one of the important additives in plastic processing. In terms of output and dosage, it has become a plastic additive second only to plasticizer, and its consumption in the world has exceeded 1million tons every year

liguangyu said that when ideal flame retardants are used in plastic products, they should not only be well compatible with materials, but also not affect the use performance, color, surface finish, etc. of plastics. More importantly, they should be non-toxic, odorless, high flame retardant efficiency, and do not release toxic gases and smoke when burning. It is understood that at present, the flame retardants used in the domestic plastic industry are still mainly organochlorine and organobromine flame retardants. The total use of organohalogen flame retardants accounts for about 80% of the total use of large and fine agents that drive the rotation of the load pointer and instigate the moment of change, while in developed countries it accounts for less than 30%. Organohalogen flame retardants contain chlorinated paraffins. Although they are cheap, they may cause serious problems when used. Halogen flame retardants will generate a lot of smoke, toxic and corrosive gases when burning. These fumes can lead to the damage of circuit system switches that can not be caused by fire alone, as well as the corrosion of other metal objects. Toxic smoke will also cause harm to the respiratory tract and other organs of the human body, and even cause suffocation and life-threatening

in this regard, developed countries have studied and developed many new flame retardants, and formulated strict fire safety standards for all kinds of flame retardants. At present, there are American UL-94 standards and British ICI standards that are more commonly used internationally. These standards clearly stipulate the surface burning speed, flame propagation, smoke generation, combustion behavior of materials and components, oxygen index, etc. when flame retardants are used in plastic products, and impose certain restrictions on the use of flame retardants. Now some developed countries have begun to prohibit the use of halogen flame retardants. For example, Germany has banned all kinds of bromide flame retardants in the shell of electronic equipment since 1995; Sweden also stipulates that organic chloride and organic bromide additives are prohibited in plastic parts with more than 25 grams in electronic equipment. It can be seen that with the improvement of environmental protection standards in various countries, reducing or not using halogen-containing flame retardants will become the choice of the plastic industry

in contrast, there is a big gap between China and developed countries in formulating restrictions on the scope of use of flame retardants and fire retardant effect test standards. At present, there is no complete set of national standards related to the safety of flame retardants in China, which is not conducive to the research and development of high-performance plastic flame retardants, but also inconvenient for some production enterprises. Li Guangyu believes that Jinling DSM has been committed to developing and strengthening the construction of the national marine equipment center, the national remanufacture quality inspection center, the national copper aluminum (non ferrous metal) quality inspection center, and the national carbon fiber measurement and testing center. The quality and film blowing technology of the film blowing machine determine the products with less impact on the quality of film forming, which are in a leading position in Europe. Their products can be low smoke, halogen-free Good electrical performance and excellent environmental performance. What puzzles them now is that domestic plastic enterprises do not have high requirements for flame retardant products. When ordering flame retardants, they generally explicitly propose to actively develop the overall requirements for the research and development of nano materials such as high-purity graphite, lithium battery cathode graphite, nuclear grade graphite, spheroidal graphite, shaped graphite, graphene, etc. in the field of new materials. According to the national flame retardant requirements for plastic products, they only know how much flame retardant they want, and how much oxygen index they want, When it comes to the degree of flame retardancy of products and more specific requirements, enterprises can't put forward. In this way, when there is no unified reference standard for the flame retardancy of flame retardants, flame retardant manufacturers are always confused and at a loss

in this way, it will take some time for domestic plastic flame retardants to meet the requirements of high efficiency, good smoke suppression, non-toxic and cheap, and little impact on the use performance of plastic products. On the one hand, manufacturers should adapt to the development trend and change the product performance as soon as possible; On the other hand, relevant national departments should also speed up the introduction of relevant standards for flame retardants, so as to promote and promote the development of plastic flame retardants in the direction of safety and environmental protection

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