News Details
Polyolefin plastic microcapsule flame-retardant
2017-11-28 14:02:04
Polyolefin plastic microcapsule flame-retardant
Plastics are widely used in industry, agriculture and daily life. However, almost all plastics are easy to burn, and some of them will also produce a lot of harmful gases and smoke when burning. Therefore, the flame retardant and flame retardancy of plastics is an important problem.
In the plastic flame retardant technology, adding polyolefin plastic microcapsule flame retardants is a widely used method. According to rough statistics, 65% of the world's flame retardants are used for flame retardants 70%.
The application of microcapsule technology to flame retardants is a new technology circle developed in recent years. It is also known as micro capsule microspheres, micro vessel solid particles or liquid droplets wrapped with natural or synthetic polymer materials, microcapsule flame retardant polyolefin plastic film package known as wall material, was a substance known as core material.
When in use, the microcapsules prepared with polymer materials or other materials are mixed, applied to a substrate is applied on the radiation heating and pressurizing or means of the micro capsule rupture, releasing the wrapping material, produce the desired application performance, or not to damage the cyst membrane, wrapping material release through the cyst membrane diffusion, control performance.
In polyolefin plastic microcapsule flame retardant the advantages of microencapsulation, capsule core encapsulated and isolated from the external environment, the nature of it can have no effect to be retained, and under appropriate conditions, and can be damaged when the wall material will be released to use this bag, bring a lot of convenience trapped.
The microencapsulation technology of the flame retardant can improve the flame retardants from the following aspects.
A) the flame retardants of gas and liquid are turned into solid flame retardants after microencapsulation.
B) according to the types of flame retardants needed, we choose the appropriate bag material and extend the compatibility of the flame retardant with the polymer after adding the capsule material, so as to reduce and eliminate the adverse effects of flame retardants on physical and mechanical properties of polymer products.
C) can reduce the migration of the liquid flame retardant in the polymer material and the loss of the flame retardant in the polymer material due to the volatility of the liquid.
D) can reduce the release amount of toxic components in the process of polymer processing and avoid environmental pollution.
E) can shield the irritating odor of the flame retardant and change its color.
F) can change the density, volume and other properties of the flame retardant.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Phosphorus and phosphorus compounds is one of the most important classes of flame retardant, red phosphorus due to its advantages of wide source, non volatile, low cost, good flame retardant effect, used as a flame retardant has been 30 years of history, it is a kind of flame retardant agent is highly valued by sichuan.
Compared with other additive type flame retardant, red phosphorus and high phosphorus content, so as to achieve the same amount of flame retardant, red phosphorus flame retardant is less than the other, has good physical and mechanical properties of flame retardant polymer with it, so the amount increased year by year and have good prospects for development.
But the red phosphorus itself with color, easily oxidized into hygroscopic acid, poor stability, dust explosion, used in thermoplastic processing produce extremely toxic PH: problems such as the main reason is to limit its widely used flame retardant. If the red phosphorus microencapsulation, these problems can be smoothly done or easily solved. Therefore, Mr. Ou Yuxiang predicted in the article: red phosphorus microencapsulation is 10 years before twenty-first Century the most promising one of halogen-free flame retardant.
Elemental phosphorus is flammable, but in the resin, red phosphorus and other phosphorus containing additive process is not a simple oxidation of phosphorus containing additives mainly in condensed phase effects, flame retardant mechanism:
The first step is to form a phosphoric acid as a dehydrant and to promote carbon formation, which reduces the heat conduction from the flame to the condensed phase.
Second step: the phosphoric acid can absorb heat, because it prevents the CO oxidation to CO2 and reduces the heating process.
The third step: the condensed phase protective layer to form a thin layer of glass or liquid, thus reducing the oxygen diffusion heat and mass transfer between gas and solid phase, inhibited the carbon oxidation process, reducing flame retardant thermal decomposition change as follows: flame retardant, phosphoric acid, phosphoric acid, partial polyvinylidene phosphoric acid, polymetaphosphate is stable and less volatile compounds, with strong dehydration, in the polymer surface complexes isolated from air and water; out absorb a lot of heat, so that the flame retardant polymer surface thermal decomposition release of volatile phosphides by mass spectrometry analysis showed that the concentration of hydrogen storage is greatly reduced, showed that the PO capture H? That is,? PO? +H? =HPO.
The development of phosphorous compounds with high phosphorus content, high molecular weight, good thermal stability, low toxicity and low smoke is a trend in the development of organophosphorus flame retardants. In addition, the radiation resistance and the phosphates that do not deteriorate the insulation of the substrate electrical appliances are also the new varieties that people have to focus on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Plastics are widely used in industry, agriculture and daily life. However, almost all plastics are easy to burn, and some of them will also produce a lot of harmful gases and smoke when burning. Therefore, the flame retardant and flame retardancy of plastics is an important problem.
In the plastic flame retardant technology, adding polyolefin plastic microcapsule flame retardants is a widely used method. According to rough statistics, 65% of the world's flame retardants are used for flame retardants 70%.
The application of microcapsule technology to flame retardants is a new technology circle developed in recent years. It is also known as micro capsule microspheres, micro vessel solid particles or liquid droplets wrapped with natural or synthetic polymer materials, microcapsule flame retardant polyolefin plastic film package known as wall material, was a substance known as core material.
When in use, the microcapsules prepared with polymer materials or other materials are mixed, applied to a substrate is applied on the radiation heating and pressurizing or means of the micro capsule rupture, releasing the wrapping material, produce the desired application performance, or not to damage the cyst membrane, wrapping material release through the cyst membrane diffusion, control performance.
In polyolefin plastic microcapsule flame retardant the advantages of microencapsulation, capsule core encapsulated and isolated from the external environment, the nature of it can have no effect to be retained, and under appropriate conditions, and can be damaged when the wall material will be released to use this bag, bring a lot of convenience trapped.
The microencapsulation technology of the flame retardant can improve the flame retardants from the following aspects.
A) the flame retardants of gas and liquid are turned into solid flame retardants after microencapsulation.
B) according to the types of flame retardants needed, we choose the appropriate bag material and extend the compatibility of the flame retardant with the polymer after adding the capsule material, so as to reduce and eliminate the adverse effects of flame retardants on physical and mechanical properties of polymer products.
C) can reduce the migration of the liquid flame retardant in the polymer material and the loss of the flame retardant in the polymer material due to the volatility of the liquid.
D) can reduce the release amount of toxic components in the process of polymer processing and avoid environmental pollution.
E) can shield the irritating odor of the flame retardant and change its color.
F) can change the density, volume and other properties of the flame retardant.
Triphenyl Phosphate (TPP)
Triphenyl Phosphatetpp-cas: 15-86-6
EINECS number: 204-112-2
Chinese Name: Triphenyl Phosphate
Chinese alias: phosphoric acid three phenyl ester; flame retardant TPP; TPP
English Name: Triphenyl Phosphate
English alias: Triphenyl Phosphate free of phenol; Triphenyl Phosphate (TPPa); Triphenyl Phosphate white XTL Phosphoric acid triphenyl ester; TPP
Molecular formula: C18H15O4P; OP (OC6H5) 3
Appearance and properties: white crystalline powder, odorless, slightly deliquescence
Molecular weight: 326.29
Steam pressure: 0.01kPa/20 ℃
The above is the product of the CAS, such as Triphenyl Phosphate tpp-cas: 15-86-6 other information please contact us!
Flame retardant TPP has many advantages, such as excellent transparency, softness, bacterial resistance, and water proof, grease-proof, good electric insulation, as well as good compatibility. Flame retardant TPP is mainly used as the flame-retardant plasticizer for cellulose resin, vinyl resin, natural rubber and synthetic rubber. And it may also be used as the flame-retardant plasticizer for glyceryl triacetate thin ester and film, rigid polyurethane foam, phenolic aldehyde resin, and PPO, etc.
Flame retardant TPP is a kind of halogen-free environment-friendly flame retardant with phosphorus element. Most of the products in the market are self-colored flaky crystal, our product is self-colored crystalline powder, and is more soluble in organic solvents. TPP is not soluble in water, but soluble in benzene, chloroform, ether and acetone, and slightly soluble in Z alcohol. Flame retardant TPP is nonflammable with slight aromatic odor and slight deliquescence. The fusion point is about 50 ℃, and fast melts to hoop-shape when heated. The lubricate effect is excellent, and it is often used as the flame retardant plasticize lubricant. What is more, it is used as the flame retardant for many plastics and resins, such as phenolic aldehyde resin, epoxy resin and so on.
Phosphorus and phosphorus compounds is one of the most important classes of flame retardant, red phosphorus due to its advantages of wide source, non volatile, low cost, good flame retardant effect, used as a flame retardant has been 30 years of history, it is a kind of flame retardant agent is highly valued by sichuan.
Compared with other additive type flame retardant, red phosphorus and high phosphorus content, so as to achieve the same amount of flame retardant, red phosphorus flame retardant is less than the other, has good physical and mechanical properties of flame retardant polymer with it, so the amount increased year by year and have good prospects for development.
But the red phosphorus itself with color, easily oxidized into hygroscopic acid, poor stability, dust explosion, used in thermoplastic processing produce extremely toxic PH: problems such as the main reason is to limit its widely used flame retardant. If the red phosphorus microencapsulation, these problems can be smoothly done or easily solved. Therefore, Mr. Ou Yuxiang predicted in the article: red phosphorus microencapsulation is 10 years before twenty-first Century the most promising one of halogen-free flame retardant.
Elemental phosphorus is flammable, but in the resin, red phosphorus and other phosphorus containing additive process is not a simple oxidation of phosphorus containing additives mainly in condensed phase effects, flame retardant mechanism:
The first step is to form a phosphoric acid as a dehydrant and to promote carbon formation, which reduces the heat conduction from the flame to the condensed phase.
Second step: the phosphoric acid can absorb heat, because it prevents the CO oxidation to CO2 and reduces the heating process.
The third step: the condensed phase protective layer to form a thin layer of glass or liquid, thus reducing the oxygen diffusion heat and mass transfer between gas and solid phase, inhibited the carbon oxidation process, reducing flame retardant thermal decomposition change as follows: flame retardant, phosphoric acid, phosphoric acid, partial polyvinylidene phosphoric acid, polymetaphosphate is stable and less volatile compounds, with strong dehydration, in the polymer surface complexes isolated from air and water; out absorb a lot of heat, so that the flame retardant polymer surface thermal decomposition release of volatile phosphides by mass spectrometry analysis showed that the concentration of hydrogen storage is greatly reduced, showed that the PO capture H? That is,? PO? +H? =HPO.
The development of phosphorous compounds with high phosphorus content, high molecular weight, good thermal stability, low toxicity and low smoke is a trend in the development of organophosphorus flame retardants. In addition, the radiation resistance and the phosphates that do not deteriorate the insulation of the substrate electrical appliances are also the new varieties that people have to focus on.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian