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What are the main ingredients of Halogen Free Flame Retardant for PE Film?
鹵素去除之阻燃劑,專為聚乙烯膜(PE膜)而設,其主要成分多為無機與有機配合之物,旨在保全環境,減低燃燒時有害氣體之釋放。於眾多配劑中,無機元素為主,最常見者如鎂鹽焰阻劑與鋁鹽之三水合物。氧化鎂或氫氧化鎂,以其升溫時分解吸熱之特性,吸收燃燒過程之熱能,釋放水分子,延緩燃燒,減少煙霧及毒氣生成。三水氧化鋁亦同理,於高溫時析出生水,致阻燃作用顯著。除此之外,某些配方中,亦有磷系化合物應用,如聚磷酸銨、紅磷或有機磷酸酯。磷系物遇熱時能成碳層,覆蓋於聚乙烯表面,使隔氧抗燃,且磷系分解產生之酸性物,可催化聚合物脫水碳化,增強阻燃功效。
伴隨主劑之輔助成分,如碳酸鈣、滑石粉等,可提升機械性能,調和加工流動性,然非阻燃之主體。偶有採用有機膨脹型阻燃劑,其結構中包含碳源、酸源與發泡劑,於燃燒時形成多孔碳膜,隔絕熱源與氧氣,預防火勢蔓延。此類阻燃體系兼具環保與功能之雙重益處,不含鹵素,燃燒後不釋放含氯、含溴之有害氣體。
總結所述,鹵素去除阻燃劑之主要成分,多取無機鋁鹽、鎂鹽及其混合物,兼納磷系有機或無機化合物,以協同發揮阻燃效果。輔以增強加工與機械性能之添加劑,最終產物兼供阻燃、安全與環保之利,適宜於現代聚乙烯膜製品之需求。
What types of polyethylene film is Halogen Free Flame Retardant for PE Film suitable for?
Halogen flameless flame retardant is a key new material in modern chemical industry. It is suitable for polyethylene film. The types of polyethylene film can be divided into several types according to their molecular structure and use. High-density polyethylene (HDPE) film, with tight molecular arrangement and strong strength, is used in packaging, agricultural film, industrial protection, etc.; low-density polyethylene (LDPE) film, soft and tough, commonly used in food, daily necessities, medical packaging; linear low-density polyethylene (LLDPE) film, both flexible and strong, suitable for high performance requirements such as stretch winding; and cross-linked polyethylene (XLPE) film, which has better performance, found in cables, insulation and other fields.
This halogen free flame retardant mainly enhances the ability of the film to isolate flames, and can also reduce the escape of toxic fumes during incineration. Such flame retardants have high compatibility with polyethylene resins and are easy to disperse evenly, making them suitable for the above films. However, the application between different films still needs to consider multiple ends: high-density flame retardants should be added to ensure their mechanical properties are not lost, low-density ones are more flexible and transparent, and flame retardants with fine particle sizes should be selected without damaging their primary color; linear low-density ones need to take into account tensile and flame retardant properties, and the choice of flame retardants is particularly strict. Cross-linked ones are mostly used in electrical, and flame retardant requirements are higher. Halogen-free high-efficiency ones must be selected to avoid loss of conductivity.
And halogen flameless flame retardants, because of their environmental protection, do not produce dioxin and halide fumes, so they are favored by edible, medicinal and agricultural packaging. Especially in green materials, the safety standards are increasingly strict, and its value is increasing. And its variety, such as phosphorus and nitrogen system, inorganic hydrotalcite, aluminum hydroxide, magnesium hydroxide, etc., can be selected according to the properties of the film.
All in all, halogen free flame retardants are almost suitable for high-density, low-density, linear low-density, cross-linking and other types of polyethylene films. They not only increase their flame-proof power, but also conform to the general trend of environmental control today. In this way, the application field of polyethylene films is more and more prosperous.
Does Halogen Free Flame Retardant for PE Film affect the physical properties of the film?
The flame retardant element is freely applied to polyethylene film, and its physical properties should be investigated. For flame retardants, the original purpose is to improve the safety of the material in fire hazards, but when added to plastics, its base molecules and mutual effects are affected. Polyethylene film properties are well-known for its flexibility, transparency and plasticity. Self-purified products are good for environmental health. Although it is easy to improve, it is still not good for the physical rationality of the substrate.
Flame retardant can effectively improve the oxygen limiting index of the film and make it difficult to burn, but if the amount is too large, it may cause the imbalance of the action of the polyethylene group, and the flexibility may be reduced. Partial flame retardants such as phosphorus, nitrogen, and polymer. If the distribution is uneven, the film is prone to bubbles, cracks, or rough surfaces, which are all indications of physical properties. As for the mechanical resistance, tensile property, and elongation, it is also shown that the flame retardant is not included, or it may decrease slightly. However, due to the modification of the formula and processing technology, it can make its face shadow and even close to its true color. In terms of transparency, some flame retardant polyethylene refractive index does not make the film white, but there are also methods of granulation or wrapping technology.
The characteristics of pollution resistance, waterproofing, and anti-corrosion are added. However, it is necessary to observe the quality of the external environment. If the flame retardant is removed, the performance will be deteriorated. In addition, the flame retardant is used in the use of polyethylene film, and its physical properties may be slightly damaged. However, if the combination of precision and process is appropriate, the combined value of safety and security will be reduced, and the performance will be reduced. In this way, it is appropriate to consider and use it in the flame retardant modification of high-polymer materials to benefit their survival ingenuity and workmanship.
What is the usual amount of Halogen Free Flame Retardant for PE Film?
Halogen Free Flame Retardant (Flame retardant), which is used in the combination of polyethylene film (PE Film), and its dosage. Polyethylene is flammable by nature, especially when it decomposes. It is mostly flame retardant. However, those containing are prone to toxic and corrosive substances, so Flame retardant was born in order to ensure safety. Today Its addition amount, which is also the performance of the film with flame suppression effect, cannot be biased.
Generally speaking, Flame retardant is not good, such as phosphorus series, nitrogen series, and chemical filling such as Oxide, Oxide, etc. Its addition amount depends on the compatibility of the substrate, flame retardant, etc. Mesh and Process Component. If UL-94 V-0 is obtained or through the system, the amount of flame retardant additions is more than 10% to 30% of the weight of the substrate (ie, 10~ 30phr, parts per hundred resin), but it is still necessary to determine the efficiency of the flame retardant. Phosphorus-based multi-effect, high-quality, the dosage can be reduced, and the filling of the material needs to be more.
Add more, the flame retardant performance can be increased, but it is easy to reduce the material's strength, light, processing and other properties. It is less flame retardant. Polyethylene film is thin and ductile, so the flame retardant substrate is compatible. If the grains are coarse and poorly dispersed, the film-forming performance will decrease. Usually, the researcher first adds small quantities according to the formula, and adds them one by one, until the flame retardant, stretching, cracking and other properties are integrated until the flame retardant performance of the film is good.
In terms of, the use of flame retardant for polyethylene film is more than 10 to 30%, only the flame retardant mesh and the flame retardant itself should be used at its discretion. It not only emphasizes safety and protection, but also does not lose the benign properties of raw materials. It is the best of all its beauty.
Does Halogen Free Flame Retardant for PE Film comply with environmental and regulatory requirements?
Halogen Free Flame Retardant is a halogen-free flame retardant, suitable for the preparation of polyethylene film. Halogen-free flame retardants remove halogen elements such as chlorine and bromine to avoid toxic and harmful gases during combustion, which is in line with modern environmental protection concepts. Since the 21st century, countries around the world have taken environmental protection seriously. The European Union has implemented regulations such as RoHS and REACH, which stipulate that halogens and other harmful substances are restricted or banned in electrical and electronic products and materials. Zhongyuan formulated GB/T 26572 and "Limit Requirements for Hazardous Substances in Electronic Information Products", which are also similar to European Union regulations, emphasizing the environmental protection and safety of materials.
Halogen-free flame retardants are mostly phosphorus, nitrogen or inorganic compounds. The products released during combustion are mainly water vapor and non-toxic gases, which greatly reduce the environmental load. Applied to PE films, it can improve its self-extinguishing and flame retardant properties, and does not produce harmful substances such as dioxin during waste or incineration treatment, and has both safety and environmental protection. Relevant tests must comply with international standards IEC 61249-2-21 and UL 94 to ensure flame retardancy and halogen-free materials. In terms of ROHS standards, the content of halogens (such as bromine and chlorine) must be lower than the specified limit. If halogen-free flame retardants are strictly controlled, they can meet this standard.
In addition, some halogen-free flame retardants such as red phosphorus and aluminum hydroxide are non-toxic in themselves, but they need to prevent environmental leakage during processing and strictly abide by environmental safety regulations. Waste recycling technology should be used to reduce environmental secondary pollution. Emerging regulations such as the European Union Chemical Registration, Evaluation, Authorization and Restriction System (REACH) require security evaluation and data disclosure before the use of various chemicals. Most halogen-free flame retardants have completed relevant registration and are widely used in the market.
In summary, Halogen Free Flame Retardant is used in PE Film, which can meet environmental protection and regulatory requirements, and has the green transformation and sustainable development of the manufacturing industry. Only by inspecting the specific product formula and sources can we ensure that the whole process meets the provisions of regulations.