News Details
ABS flame retardant
2017-11-5 22:57:35
ABS flame retardant
ABS is the three copolymer acrylonitrile, butadiene and styrene, as one of the five major synthetic resin, is currently the largest output, the most widely used polymer, it will be PS, SAN, BS various properties of organic unity, both tough, hard, just the excellent mechanical properties.
In order to meet the requirements of UL94 V-0 (1.6mm), and take into account both mechanical and coloring properties, especially to maintain a certain toughness, the notched impact strength of the material is not greatly affected. In the field of halogen flame retardant has many solutions, in the same field; halogen-free flame retardant, red phosphorus flame retardant as a flame retardant efficiency ABS flame retardant high solution, it satisfies the flame retardancy and mechanical properties of these two requirements, but the ABS made of flame retardant materials because the color is deep, can not meet the coloring the performance requirements, can only be used in black or dark places; the current situation is: ABS flame retardant in the premise must meet the three basic conditions of flame retardant properties, mechanical properties and coloring properties, has been the world leader of flame retardant modified a problem domain recognized at home and abroad, has not yet been found to have very good the mature solutions. Analysis of the main reasons, mainly lies in two aspects as follows:
One of the reasons: ABS as the three component copolymer, ABS flame retardant its solution is not easy to achieve; in fact, other polymers (such as nylon, PBT, PP, PC, PET) compared with ABS, because halogen-free flame retardant only needs to solve a simple polymer, halogen free flame retardant of these materials is relatively easy to implement, many countries now have a good solution; while ABS is greatly different, it needs to satisfy the halogen-free flame retardant acrylonitrile, butadiene and styrene in the three kinds of materials, and the three kinds of component materials to the flame retardant mechanism, to be different in view of this, a lot of countries although it has been years of exploration, so far, has not yet formed a halogen-free flame retardant with less than 30% of the solution.
Two reasons: the world has successfully developed some halogen-free flame retardant solutions include: aluminium hydroxide or magnesium hydroxide based cooling system, the dehydration flame retardant ammonium polyphosphate based intumescent flame retardant system, with alkyl or aryl phosphate (or phosphonic acid ester) flame retardant plasticizer based the flame retardant system, and so on, the addition of flame retardant system, generally in more than 35%, often filling amount is too large, or the plasticizing effect is too large, the performance of the material, especially the influence of notched impact strength, so it can not meet the three basic conditions.
Flame retardant has flame retardant effect is to promote the early dissolution of the polymer dehydration and carbonization. The dehydration and carbonization steps must depend on the oxygen-containing groups of the polymer itself, and the polymers with oxygen-containing groups for their own structures. Their flame retardant effect will be better. For polypropylene, due to the molecular structure itself without oxygen containing groups, single use flame retardant flame retardant is ineffective, but if and (0H) 3 and Mg (OH) 2 compound can produce synergistic effect, so as to obtain good flame retardant effect.
Triphenyl Phosphate (TPP)
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.
The commonly used organic phosphorus flame retardants are phosphoric acid three phenyl ester, phosphoric acid trimethyl ester, phosphoric acid three (xylene) ester, benzene series phosphate ester, butadiene styrene phosphate ester and so on. The characteristics of phosphate ester is a flame retardant and plasticizer dual function. It can make the flame retardant realize halogen-free, and its plasticizing function can make plastic molding flow processability better, can inhibit the residual after combustion. Toxic gas and corrosive gas produced than halogen flame retardant less. The main advantages are high efficiency; has little effect on the stability of light or light stabilizers;
processing and combustion in low corrosion; prevent resurgence effect; very little or no increase in the quality of flame retardant materials. But most of the phosphate flame retardant has some drawbacks. Such as poor heat resistance, high volatility, compatibility is not ideal, but also in the combustion of drops produced.
The main products containing inorganic flame retardant with red phosphorus flame retardant, ammonium phosphate, ammonium polyphosphate etc.. With the increase of the amount of halogen free flame retardant material, red phosphorus flame retardant dosage is increased. Red phosphorus flame retardant effect better than phosphate ester flame retardant effect. Phosphorus inorganic flame retardants are widely used because of their good thermal stability, non-volatile, no corrosive gas, lasting effect, low toxicity and so on.
Six bromine ring twelve alkane (HBCD) is the most effective flame retardant of PS material, but ordinary HBCD is easy to decompose, it is generally used only in EPS extrusion plate equipment. In the XPS board production line due to friction, screw the actual temperature will be higher than the display temperature, also due to the impurities in material factors on the decomposition and the influence of residence time, the decomposition temperature of flame retardants at least 20 DEG C higher than the highest temperature of equipment.
According to the domestic and foreign XPS extrusion equipment manufacturers experience, XPS extrusion equipment must use heat stable HBCD, most of the domestic equipment using flame retardant suitable decomposition temperature at 240 degrees Celsius, some foreign equipment to reach 250 C.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
ABS is the three copolymer acrylonitrile, butadiene and styrene, as one of the five major synthetic resin, is currently the largest output, the most widely used polymer, it will be PS, SAN, BS various properties of organic unity, both tough, hard, just the excellent mechanical properties.
In order to meet the requirements of UL94 V-0 (1.6mm), and take into account both mechanical and coloring properties, especially to maintain a certain toughness, the notched impact strength of the material is not greatly affected. In the field of halogen flame retardant has many solutions, in the same field; halogen-free flame retardant, red phosphorus flame retardant as a flame retardant efficiency ABS flame retardant high solution, it satisfies the flame retardancy and mechanical properties of these two requirements, but the ABS made of flame retardant materials because the color is deep, can not meet the coloring the performance requirements, can only be used in black or dark places; the current situation is: ABS flame retardant in the premise must meet the three basic conditions of flame retardant properties, mechanical properties and coloring properties, has been the world leader of flame retardant modified a problem domain recognized at home and abroad, has not yet been found to have very good the mature solutions. Analysis of the main reasons, mainly lies in two aspects as follows:
One of the reasons: ABS as the three component copolymer, ABS flame retardant its solution is not easy to achieve; in fact, other polymers (such as nylon, PBT, PP, PC, PET) compared with ABS, because halogen-free flame retardant only needs to solve a simple polymer, halogen free flame retardant of these materials is relatively easy to implement, many countries now have a good solution; while ABS is greatly different, it needs to satisfy the halogen-free flame retardant acrylonitrile, butadiene and styrene in the three kinds of materials, and the three kinds of component materials to the flame retardant mechanism, to be different in view of this, a lot of countries although it has been years of exploration, so far, has not yet formed a halogen-free flame retardant with less than 30% of the solution.
Two reasons: the world has successfully developed some halogen-free flame retardant solutions include: aluminium hydroxide or magnesium hydroxide based cooling system, the dehydration flame retardant ammonium polyphosphate based intumescent flame retardant system, with alkyl or aryl phosphate (or phosphonic acid ester) flame retardant plasticizer based the flame retardant system, and so on, the addition of flame retardant system, generally in more than 35%, often filling amount is too large, or the plasticizing effect is too large, the performance of the material, especially the influence of notched impact strength, so it can not meet the three basic conditions.
Flame retardant has flame retardant effect is to promote the early dissolution of the polymer dehydration and carbonization. The dehydration and carbonization steps must depend on the oxygen-containing groups of the polymer itself, and the polymers with oxygen-containing groups for their own structures. Their flame retardant effect will be better. For polypropylene, due to the molecular structure itself without oxygen containing groups, single use flame retardant flame retardant is ineffective, but if and (0H) 3 and Mg (OH) 2 compound can produce synergistic effect, so as to obtain good flame retardant effect.
Triphenyl Phosphate (TPP)
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.
The commonly used organic phosphorus flame retardants are phosphoric acid three phenyl ester, phosphoric acid trimethyl ester, phosphoric acid three (xylene) ester, benzene series phosphate ester, butadiene styrene phosphate ester and so on. The characteristics of phosphate ester is a flame retardant and plasticizer dual function. It can make the flame retardant realize halogen-free, and its plasticizing function can make plastic molding flow processability better, can inhibit the residual after combustion. Toxic gas and corrosive gas produced than halogen flame retardant less. The main advantages are high efficiency; has little effect on the stability of light or light stabilizers;
processing and combustion in low corrosion; prevent resurgence effect; very little or no increase in the quality of flame retardant materials. But most of the phosphate flame retardant has some drawbacks. Such as poor heat resistance, high volatility, compatibility is not ideal, but also in the combustion of drops produced.
The main products containing inorganic flame retardant with red phosphorus flame retardant, ammonium phosphate, ammonium polyphosphate etc.. With the increase of the amount of halogen free flame retardant material, red phosphorus flame retardant dosage is increased. Red phosphorus flame retardant effect better than phosphate ester flame retardant effect. Phosphorus inorganic flame retardants are widely used because of their good thermal stability, non-volatile, no corrosive gas, lasting effect, low toxicity and so on.
Six bromine ring twelve alkane (HBCD) is the most effective flame retardant of PS material, but ordinary HBCD is easy to decompose, it is generally used only in EPS extrusion plate equipment. In the XPS board production line due to friction, screw the actual temperature will be higher than the display temperature, also due to the impurities in material factors on the decomposition and the influence of residence time, the decomposition temperature of flame retardants at least 20 DEG C higher than the highest temperature of equipment.
According to the domestic and foreign XPS extrusion equipment manufacturers experience, XPS extrusion equipment must use heat stable HBCD, most of the domestic equipment using flame retardant suitable decomposition temperature at 240 degrees Celsius, some foreign equipment to reach 250 C.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Spanish
French
Italian
Portuguese
Japanese
Korean
Arabic
Russian