News Details
PP plastic flame retardant
2017-10-14 11:36:36
PP plastic flame retardant are prepared from imported materials and are reactive flame retardants for the new high-efficiency elements including Br (bromo) and P (P) N (N).
Most of the bromide flame retardants will break down under the 200-300 ℃, the temperature range was also polypropylene decomposition temperature range, so the polypropylene thermal decomposition, the bromine flame retardants are also beginning to decomposition, and can capture the degradation reaction of free radicals, to slow or stop the combustion chain reaction. At the same time, the release of HBr itself is a kind of hard gas, which can cover the surface of the material, which can prevent the gas from burning on the surface, and also inhibit the combustion of the material.
The main disadvantage of bromine flame retardant is to reduce the anti-ultraviolet stability of the flame retardant substrate, and the smoke, corrosive gas and poisonous gases are generated when combustion, so that its application is limited.
Phosphorus - nitrogen flame retardant is also called the expansion type flame retardant, contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, it has a good flame retardant performance. The expansive flame retardant system is generally composed of three parts: sour-source (dehydrating agent), carbon source (carbon) and gas source (nitrogen source, foaming source). The expansion type flame retardant is mainly used to flame retardant of the carbon layer of porous foam. Phosphorous nitrogen flame retardant has the advantages of halogen, low smoke and low toxicity.
Isopropylphenyl Phosphate(IPPP50)Use:
Isopropylphenyl Phosphate, Flame Retardant IPPP50 This Product Is Compatible With Vinyl Chloride, Nitrocellulose, Synthetic Resin And Natural Resin, Etc. Because Of The Above Advantages, Reofos Series In Industrial Production Is Widely Used: PVC Film As Flame Retardant Plasticizer, Reofos Increase In The Amount Of Oxygen Index Increased, Enhanced Flame Retardant. In The Rubber Industry Can Be Used As Chloroprene Rubber And Rubber Flame Retardant Plasticizer; In Other Industries Can Be Used As Lubricants With Extreme Pressure Additives And Digestion Of Cellulose Paint, Resin, Phenol Resin And Other Flame Retardants.
Isopropylphenyl Phosphate, Flame Retardant IPPP50 Use Is Also Applicable To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin And Other Fields.
The flame retardant effect of phosphor flame retardant is caused by the dehydration and carbonation of the early decomposition of high polymer. This process of dehydration and carbonization must depend on the oxygen-containing groups of the polymer itself, and it has a high polymer with oxygen groups in its own structure. Their flame retardant effects will be better. For polypropylene, due to the molecular structure of itself without oxygen containing groups, when used alone phosphorus-containing flame retardant flame retardant effect is not good, but if with (0 h) 3 and the distribution of such as Mg (OH) 2 can produce synergies, good flame retardant effect is obtained.
Polypropylene (PP) has been widely used in many industries with its advantages such as small density, good mechanical properties, chemical corrosion, easy processing, high temperature and low temperature, etc. PP plastic flame retardant has become the largest and fastest growing polymer flame retardant material.
Magnesium hydroxide [Mg (OH) 2] as a kind of halogen-free flame retardant, besides can flame retardant and smoke elimination performance, and dehydration temperature is high, more suitable for PP, such as polymer flame retardant modification of processing temperature is higher, in reducing the harm to environment and processing in the material can meet the requirements of relevant laws and regulations, but also make the fire retardant plastic easier to recycle. Especially the Mg (OH) 2 rich raw material sources, low price, use it as PP plastics flame retardants have higher economic efficiency, so in recent years all over the country to use the Mg (OH) 2 flame retardant PP attaches great importance to.
However, at present, most enterprises are using Mg (OH) 2 flame retardant PP, because Mg (OH) 2 is not enough, it needs to add other flame retardants, resulting in high formula cost. For this reason, I will discuss some matters that should be paid attention to when using Mg (OH) 2 as flame retardant. When using Mg (OH) 2 flame retardant PP, the material reaches ul94v-0 flame retardant grade (3). The dosage should be more than 60%, however, if you use Mg (OH) 2 to suppress the smoke, the dosage can be lower, and the density of PP with 40 Mg (OH) 2 is only about 1/3 of the non-flame retardant PP.
When the content of Mg (OH) in PP was 65%, the mechanical properties, especially the impact strength and elongation, were significantly inferior. In order to make the Mg (OH) 2 flame retardant PP material mechanical performance not fall a lot, should choose fine particle size and narrow particle size distribution and uniform of Mg (OH) 2 as raw materials, and the double coupling surface treatment, in order to improve the rheological properties of the material, and promote the mixing process by Mg (OH) 2 / PP surface heat conduction and avoid the formation of local hot spots, and improve the Mg (OH) 2 and the compatibility of PP, can make it more evenly dispersed in the polymer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Most of the bromide flame retardants will break down under the 200-300 ℃, the temperature range was also polypropylene decomposition temperature range, so the polypropylene thermal decomposition, the bromine flame retardants are also beginning to decomposition, and can capture the degradation reaction of free radicals, to slow or stop the combustion chain reaction. At the same time, the release of HBr itself is a kind of hard gas, which can cover the surface of the material, which can prevent the gas from burning on the surface, and also inhibit the combustion of the material.
The main disadvantage of bromine flame retardant is to reduce the anti-ultraviolet stability of the flame retardant substrate, and the smoke, corrosive gas and poisonous gases are generated when combustion, so that its application is limited.
Phosphorus - nitrogen flame retardant is also called the expansion type flame retardant, contain this kind of flame retardant polymer when heated, surface is able to generate a uniform layer of the carbon foam layer, insulation, oxygen and smoke suppression effect, and prevent the phenomenon of molten drops, it has a good flame retardant performance. The expansive flame retardant system is generally composed of three parts: sour-source (dehydrating agent), carbon source (carbon) and gas source (nitrogen source, foaming source). The expansion type flame retardant is mainly used to flame retardant of the carbon layer of porous foam. Phosphorous nitrogen flame retardant has the advantages of halogen, low smoke and low toxicity.
Isopropylphenyl Phosphate(IPPP50)Use:
Isopropylphenyl Phosphate, Flame Retardant IPPP50 This Product Is Compatible With Vinyl Chloride, Nitrocellulose, Synthetic Resin And Natural Resin, Etc. Because Of The Above Advantages, Reofos Series In Industrial Production Is Widely Used: PVC Film As Flame Retardant Plasticizer, Reofos Increase In The Amount Of Oxygen Index Increased, Enhanced Flame Retardant. In The Rubber Industry Can Be Used As Chloroprene Rubber And Rubber Flame Retardant Plasticizer; In Other Industries Can Be Used As Lubricants With Extreme Pressure Additives And Digestion Of Cellulose Paint, Resin, Phenol Resin And Other Flame Retardants.
Isopropylphenyl Phosphate, Flame Retardant IPPP50 Use Is Also Applicable To Fabric Coating, Circuit Boards, Flooring, Textiles, PVC, Phenolic Resin And Other Fields.
The flame retardant effect of phosphor flame retardant is caused by the dehydration and carbonation of the early decomposition of high polymer. This process of dehydration and carbonization must depend on the oxygen-containing groups of the polymer itself, and it has a high polymer with oxygen groups in its own structure. Their flame retardant effects will be better. For polypropylene, due to the molecular structure of itself without oxygen containing groups, when used alone phosphorus-containing flame retardant flame retardant effect is not good, but if with (0 h) 3 and the distribution of such as Mg (OH) 2 can produce synergies, good flame retardant effect is obtained.
Polypropylene (PP) has been widely used in many industries with its advantages such as small density, good mechanical properties, chemical corrosion, easy processing, high temperature and low temperature, etc. PP plastic flame retardant has become the largest and fastest growing polymer flame retardant material.
Magnesium hydroxide [Mg (OH) 2] as a kind of halogen-free flame retardant, besides can flame retardant and smoke elimination performance, and dehydration temperature is high, more suitable for PP, such as polymer flame retardant modification of processing temperature is higher, in reducing the harm to environment and processing in the material can meet the requirements of relevant laws and regulations, but also make the fire retardant plastic easier to recycle. Especially the Mg (OH) 2 rich raw material sources, low price, use it as PP plastics flame retardants have higher economic efficiency, so in recent years all over the country to use the Mg (OH) 2 flame retardant PP attaches great importance to.
However, at present, most enterprises are using Mg (OH) 2 flame retardant PP, because Mg (OH) 2 is not enough, it needs to add other flame retardants, resulting in high formula cost. For this reason, I will discuss some matters that should be paid attention to when using Mg (OH) 2 as flame retardant. When using Mg (OH) 2 flame retardant PP, the material reaches ul94v-0 flame retardant grade (3). The dosage should be more than 60%, however, if you use Mg (OH) 2 to suppress the smoke, the dosage can be lower, and the density of PP with 40 Mg (OH) 2 is only about 1/3 of the non-flame retardant PP.
When the content of Mg (OH) in PP was 65%, the mechanical properties, especially the impact strength and elongation, were significantly inferior. In order to make the Mg (OH) 2 flame retardant PP material mechanical performance not fall a lot, should choose fine particle size and narrow particle size distribution and uniform of Mg (OH) 2 as raw materials, and the double coupling surface treatment, in order to improve the rheological properties of the material, and promote the mixing process by Mg (OH) 2 / PP surface heat conduction and avoid the formation of local hot spots, and improve the Mg (OH) 2 and the compatibility of PP, can make it more evenly dispersed in the polymer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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