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What are the main application fields of Elastomer Compounds Flame Retardant?
Rubber elastomer, made of flame retardant composite agent, is widely needed in the world. Its exquisite craftsmanship and excellent performance are famous in various fields. Its main application fields are five:
One is wire and cable. Power transmission and signal transmission depend on the cable to pass through. However, if the wire is easily damaged in case of fire, it is afraid of fire. Flame retardant rubber, wrapped outside the wire, makes the fire difficult to erode and reduces the smoke poison. All subways, buildings, aviation, and sea ships rely on this technique for safety.
Second is the automobile industry. Today's cars run through the world and travel on land. In the meantime, rubber sealing parts, such as door and window strips, engine guards, braking systems, etc., are prone to spontaneous combustion in case of sudden high temperature. The use of flame retardant elastomers not only prevents the danger of fire burning, but also increases the safety of vehicles. It is widely respected.
The third day is construction equipment. The construction of palaces takes a long time. Pipe rubber rings, fire door seals, vent glues, elastomers are commonly used to prevent the spread of fireworks. This material is tough in performance. It will not burn in case of fire. It protects the peace of the house, and the people rely on it.
The fourth day is electronic communication. The times have advanced, and there are many electromechanical. Instrument shells and electronic components are compounded with flame retardant rubber to protect the safety of the circuit. It is used everywhere in servers, mobile communications, and household appliances to resist fire and maintain smooth information.
The fifth day is household goods. Household appliances such as sockets, electric boards, water heaters, etc., involve civilian safety. In case of short circuit fire, non-flame retardant can not be used. Elastomers can be used not only as casings, but also as accessories, reducing fire, and benefiting residential buildings.
Flame retardant rubber elastomers are based on chemical processes. It is difficult to start an open flame when burning, and has less smoke and less toxicity. Energy saving and environmental protection, suitable for the time. It has excellent plasticity, aging resistance, bending resistance, and adapts to a variety of environments. Such a wide range of application fields make it well respected.
How is the flame retardant effect of Elastomer Compounds Flame Retardant evaluated?
To evaluate the flame retardant effect of Elastomer Compounds, it is advisable to consider in detail according to scientific methods. When the cover material is burned by fire, its ability to prevent the spread of flame is actually related to safe applications. To consider its deterioration, a special test needs to be set up. The most commonly used method is the Limiting Oxygen Index (LOI) to measure the minimum oxygen content required for the combustion of plastic materials, and the higher one has excellent flame retardancy. There is also a UL-94 flammability grade test. The sample is made into a specified size, placed under a certain fire source, and observed to be self-extinguishing or dripping, and it is rated as V-0, V-1, and V-2 respectively. If the material can self-extinguish quickly and has no droplets, it is expected to obtain the highest grade.
In addition, the cone calorimeter test can measure the heat release rate (HRR), total heat release (THR) and smoke density of the material, which is the main method for evaluating the fire safety of the material. With flue gas toxicity analysis, not only the amount of smoke generated during combustion, but also the main harmful gases such as carbon monoxide and hydrogen cyanide must be identified. Materials with excellent flame retardant effect are characterized by low flame diffusion rate, rapid self-extinguishing in the combustion zone, and less flue gas generation and minimal toxicity.
Before practical application, it is advisable to perform thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) to clarify the thermal decomposition process and thermal resistance limit. By using the above methods, listening to and examining them, the flame retardant quality of Elastomer Compounds can be accurately identified. As for the compatibility, durability and impact on physical properties of flame retardants, they are also part of the evaluation system that cannot be ignored, and must be given equal weight to the flame retardant effect. To judge the flame retardancy of a material, it is appropriate to use both quantitative and qualitative methods, field and experiment to form a complete system, which is sufficient for process improvement and product application safety.
Does the Elastomer Compounds Flame Retardant meet environmental and safety standards?
The flame retardant composition of rubber composites is called flame retardant rubber. Today's industry is widely used. However, the world is particularly concerned about its environmental safety and health impact. Following current environmental protection strategies and safety regulations, all chemical materials used in the manufacture of flame retardant rubber must comply with laws and standards. If the United Nations European Union REACH regulations require restrictions on the release and use of high-risk chemicals. Another such as the RoHS order also restricts the content of certain harmful substances such as lead, mercury, cadmium, and hexavalent chromium. Today's flame retardant technologies include halogen-free flame retardants, which replace traditional halogen-containing materials to reduce the generation of toxic fumes and harmful gases during combustion. Trace phosphorus, nitrogen, halogen-free and low-smoke formulas are also used to ensure human health and reduce the harm to the ecological environment.
Therefore, all Elastomer Compounds Flame Retardant produced by regular large factories must be green and environmentally friendly first, the selection of raw materials is strict, and the production process is also in compliance with the law. The traceability product does not involve the prohibition of high toxic and high residual ingredients, and it is only feasible in the market if it is sold with a test report. Environmental protection standards such as ISO14000 are also one of the considerations. As for safety standards, there are internationally recognized specifications such as UL 94 and IEC 60695, which stipulate the grade and test method of flame retardant properties. Only those who pass these standards can be marked with flame retardant properties for the needs of various industries. Under the guidance of these standards, the smoke and toxic gases of the product during combustion are significantly reduced, which effectively protects the safety of operators and end users, and is also conducive to the protection of the public environment.
Although this is the case, it should be treated with caution. Due to differences in regulations in various places, companies must strictly follow the local environmental protection and safety rules when entering the market to avoid latent risks. Furthermore, if certain flame retardants such as brominated compounds are overused, they will pose a threat to the environment and health. Therefore, companies tend to develop new green flame retardant systems, pursuing both performance and environmental protection. Considering all kinds of things, if flame retardant rubber composites are designed in accordance with specifications, selected materials, and tested qualified, in a broad sense, they can indeed meet contemporary environmental protection and safety standards. However, it cannot be generalized, and the actual product test results must be relied on. In general, Elastomer Compounds Flame Retardant, which is reasonably used and produced in a standardized manner, can generally meet the needs of environmental protection and safety.
What should be paid attention to during the processing of Elastomer Compounds Flame Retardants?
Elastomer synthesis, especially the addition of flame retardant formulas, the process is very fine, and care must be taken to prevent problems before they occur. The main points are as follows.
At the beginning, the raw materials must be clean and free of impurities. Impurities or mixed with other things, resulting in loss of reaction degree, is not advisable. The flame retardant in the formula has multiple ends, such as antimony trioxide, aluminum hydroxide, brominated compounds, all of which should be carefully weighed, and their dispersion is uniform, so that the flame retardant effect can be recognized. The stirring container must be kept dry. If the moisture is mixed, the flame retardant or due to moisture absorption and agglomeration, it will also expand, which will not damage the re-harmful products in the process. The premixing of various chemical additives must be stable, the mixing should be slow, and the high temperature should not be
Next, the processing temperature must be moderate. If it is too high, the flame retardant will precipitate or decompose to form toxic substances, which will not only harm the operator but also damage the performance of the finished product. If the temperature is not high, the material will be mixed unevenly and the flame retardant will be unevenly distributed. The melt flow rate should be weighed. If the flow rate is too fast and the material is not cross-linked, the performance will be poor and the flame retardant will be easy to migrate. Processing equipment must also be cleaned regularly, otherwise the old material and the new material will be mixed together, which will easily cause chemical reactions and damage the color and physical properties of the finished product.
And the flame retardant is compatible, which should be compatible with the main material and other additives. If it is incompatible, foreign matter will form, or flocculent will form, Some flame retardants interact with vulcanizing agents, catalysts and product colorants, which is easy to cause vulcanization failure or color change. Harmonize the formula to ensure that its coordination is taken into account. If brominated flame retardants are used, exhaust air must be set up to allow harmful flue gas to be discharged as soon as possible, so as to ensure the safety of health and production. Personnel must wear protective gear to protect dust and poison during operation to ensure health and health.
Finally, the cooling of the finished product must be slow and uniform. If it is suddenly cooled, the internal stress will accumulate, which is easy to cause cracking. Storage and transportation are also expensive to keep away from fire sources, cool and dark. If it is reprocessed, the old product must be re-checked whether the flame retardant properties are still there.
In short, the processing of elastomer flame retardant formulas requires careful and meticulous determination, and all links cannot be tolerated or lost. It can become a good product for the world.
What materials are Elastomer Compounds Flame Retardant compatible with?
The flame retardant properties in the formula are adjusted due to the needs of fire safety. The nature of PVC is flammable, and in case of fire, it is easy to spread, so the addition of flame retardant micromaterials is based on the flammability rate, or self-extinguishing, which is important for material engineering. Its multi-material compatibility, but careful to avoid performance loss.
When the flame retardant properties are combined, the first is to recommend that various plastics, such as polyethylene, polypropylene, and polyvinyl chloride, can be mixed. PVC has its own flame retardant properties, but the addition of flame retardant properties can make the flame retardant more advanced. Secondly, common rubber such as natural rubber, styrene-butadiene rubber, ethylene propylene rubber, nitrile, silicon, etc., are also compatible with flame retardants. Flame retardant rubber products are used for coating, sealing rings, engineering and other aspects. Another example is plasticity, TPE, TPU, TPV, etc., which can also be mixed with flame retardant. Its physical properties are less affected, while flame retardant and other materials can be greatly improved.
Flame retardant properties are also often combined with glass, carbon, ceramic microbeads and other materials to increase their performance or resistance. Or foam materials and adhesives are shared, making them an important material for fire protection in construction, transportation, and transportation. However, this combination must test the interfacial compatibility of materials and the dispersion of flame retardant materials. Whether it is easy to cause material strength and performance to decline.
Therefore, the flame retardant and formula compatible materials are very difficult, but due to the needs of the final application, it is necessary to be careful. For its application, it is appropriate to determine the safety, mechanical and chemical properties of each material, and the flame retardant does not affect its basic properties. If properly matched, it does not ensure safety and helps the material to be multi-functional. In this way, the flame retardant properties and multi-polymer materials are the same, which is important for OEM fire protection.