News Details
Superplasticizer
2017-12-10 17:49:40
Superplasticizer
Plasticizers are usually made from lignosulfonate. Super plasticizers are usually made from naphthalene sulfonic acid or sulfonated melamine formaldehyde. Some of the new super plasticizers are made of polycarboxylic ether (PCE).
Plasticizers are ubiquitous in life. In addition to plastic containers, tableware, daily necessities and toys, plastic preservative can also be included in the plastic film. Plasticizer is widely used in food packaging, medical and health products, paint and other industrial products. There are also trace amounts of DEHP and other ortho two carboxylates in the environment and drinking water.
The plasticizer is a common argument, but in Taiwan, plasticizer storm coerced, are known as the plasticizer. The plasticizer is the largest of all plastic additives. Among them, the best cost effective o-phthalic acid esters are the most widely used, and the global usage is more than 8 million tons per year. Among them, o-phenyl two carboxylate plasticizer is the main body, accounting for 75% of the total volume of two. The two isooctyl phthalate two formic acid (DEHP) production of the largest, followed by dibutyl phthalate (DBP). The former DEHP, in the Taiwan plasticizer wind wave, a single show, DBP just knock down the drum.
Whether plasticizer of traditional lignosulfonate or superplasticizer based on naphthalene sulfonic acid or sulfonated melamine is the principle of using the same electric charge to repel each other, and to disperse flocculated concrete particles (details refer to colloid items). These plasticizers derived from lignin, naphthalene or melamine belong to organic polymers. Long molecules of plasticizers will encase concrete particles, providing negative charges, so that concrete particles will be excluded from each other due to the same negative electricity.
Polycarboxylate ether super plasticizer is the steric stabilization mechanism of the concrete particle dispersion, and the plasticizer according to the principle of the same electric electrostatic repulsion, the dispersion mechanism of the effect of strong, long on concrete workability can enhance the effect of the time.
The plasticizer used in concrete, also known as water reducing agent, superplasticizer or super plasticizer, can increase its fluidity and processability before construction and facilitate construction.
The higher the water content of the general concrete, the better its fluidity and processability. But when concrete has enough water, the strength and water content of the concrete after solidification are in inverse proportion. Therefore, if the concrete has high strength and the volume of concrete can not be too much, the workability will be worse at this time. Plasticizer can reduce its water content without affecting the workability of concrete, so it is also called the water reducing agent, and at the same time, it also improves the strength of concrete. If Pozzolana ash is added to the concrete, the plasticizer will also be added to improve the strength. In the production of high strength concrete or fiber reinforced concrete, this method is often used to improve the strength.
Two octyl terephthalate (plasticizer DOTP) information:
Shipping port: Shanghai port
Price quotation validity: 15 days
Entry time: 15 days (inspection declaration)
Export authority: the company's right to import and export
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
The effect can be achieved by adding 1 to 2% plasticizers in concrete. Too many plasticizers will cause excessive separation of concrete, so it is generally not recommended. Depending on the composition of the concrete, too many plasticizers may also cause the retarding effect (retardingeffect).
The plasticizer used in the dry wall of gypsum is also known as a dispersant, which can increase the processing property of gypsum before it solidifies. In order to reduce the energy required for dry wall drying and add less water when making, the processability will become worse. Adding plasticizer can improve its processability.
In general, a square foot (MSF) size, a 1/2 inch thick (15g/ square meter) dry wall is added to a 2 pound plasticizer. If the excess plasticizer is added, the retarding effect will occur, and the strength of the dry wall of the gypsum will become worse.
The plasticizer used in the dry wall of gypsum is usually made from lignosulfonate. The high efficiency plasticizer is made of naphthalene sulfonic acid condensate or polycarboxylate ether. The amount of the plasticizer is only 1/2 to 1/3 of the general lignin plasticizer.
The working principle of the gypsum dry wall plasticizer is roughly similar to the working principle of the concrete plasticizer. Plasticizer long polymer molecules will encase concrete particles, provide negative charge, and make gypsum particles repel each other due to the same negative electricity and increase machinability.
Energetic materials and pyrotechnic agents usually use plasticizers. On the one hand, they can improve the physical properties of propellants or their adhesives. On the other hand, they can also be used as auxiliary fuels to enhance the propulsion force provided by unit mass fuel (i.e., specific impulse). In solid rocket propellants and smokeless gunpowder, special plasticizers are needed to improve physical properties or lift specific punching.
The plasticizers that can lift the specific impulse are generally called Energy - containing plasticizers (energeticplasticizer). Its advantage is to reduce the mass of the propellant, increase the payload of the rocket or increase its maximum speed. But sometimes because of safety or cost factors, it is still possible to use plasticizers that cannot boost the specific impact. The fuel of the spaceplane solid rocket booster will generally use synthetic rubber called hydroxy polybutadiene (HTPB) as its plasticizer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
Plasticizers are usually made from lignosulfonate. Super plasticizers are usually made from naphthalene sulfonic acid or sulfonated melamine formaldehyde. Some of the new super plasticizers are made of polycarboxylic ether (PCE).
Plasticizers are ubiquitous in life. In addition to plastic containers, tableware, daily necessities and toys, plastic preservative can also be included in the plastic film. Plasticizer is widely used in food packaging, medical and health products, paint and other industrial products. There are also trace amounts of DEHP and other ortho two carboxylates in the environment and drinking water.
The plasticizer is a common argument, but in Taiwan, plasticizer storm coerced, are known as the plasticizer. The plasticizer is the largest of all plastic additives. Among them, the best cost effective o-phthalic acid esters are the most widely used, and the global usage is more than 8 million tons per year. Among them, o-phenyl two carboxylate plasticizer is the main body, accounting for 75% of the total volume of two. The two isooctyl phthalate two formic acid (DEHP) production of the largest, followed by dibutyl phthalate (DBP). The former DEHP, in the Taiwan plasticizer wind wave, a single show, DBP just knock down the drum.
Whether plasticizer of traditional lignosulfonate or superplasticizer based on naphthalene sulfonic acid or sulfonated melamine is the principle of using the same electric charge to repel each other, and to disperse flocculated concrete particles (details refer to colloid items). These plasticizers derived from lignin, naphthalene or melamine belong to organic polymers. Long molecules of plasticizers will encase concrete particles, providing negative charges, so that concrete particles will be excluded from each other due to the same negative electricity.
Polycarboxylate ether super plasticizer is the steric stabilization mechanism of the concrete particle dispersion, and the plasticizer according to the principle of the same electric electrostatic repulsion, the dispersion mechanism of the effect of strong, long on concrete workability can enhance the effect of the time.
The plasticizer used in concrete, also known as water reducing agent, superplasticizer or super plasticizer, can increase its fluidity and processability before construction and facilitate construction.
The higher the water content of the general concrete, the better its fluidity and processability. But when concrete has enough water, the strength and water content of the concrete after solidification are in inverse proportion. Therefore, if the concrete has high strength and the volume of concrete can not be too much, the workability will be worse at this time. Plasticizer can reduce its water content without affecting the workability of concrete, so it is also called the water reducing agent, and at the same time, it also improves the strength of concrete. If Pozzolana ash is added to the concrete, the plasticizer will also be added to improve the strength. In the production of high strength concrete or fiber reinforced concrete, this method is often used to improve the strength.
Two octyl terephthalate (plasticizer DOTP) information:
Shipping port: Shanghai port
Price quotation validity: 15 days
Entry time: 15 days (inspection declaration)
Export authority: the company's right to import and export
Use of two octyl terephthalate (plasticizer DOTP)
1.DOTP has good electrical and thermal properties. It can be used to replace DOP in the sheath of PVC plastic wire and can also be used in the production of artificial leather membrane. In addition, with excellent compatibility, terephthalic acid ester is two PVC acrylonitrile derivatives plastic plasticizer, plasticizer, plasticizer, polyvinyl butyral nitrile rubber plasticizer, plasticizer for cellulose nitrate. The improvement of the product and plays the role of hardness and deformation, can be used as softener in NBR, chloroprene rubber, EPDM rubber and other products three. Especially for cable material, it has good plasticizing effect and low volatility. It is widely used in various products that require heat resistance and high insulation. It is an ideal plasticizer for producing 70 PVC cable material and other volatile resistant products.
2.DOTP is used for the PVC products in the car, which can solve the fog problem of the glass window. DOTP is also used for high quality lubricants or lubricant additives furniture and interior decoration paint, and precision instruments, nitro varnish additives, paper softener, biaxially oriented polyester amide membrane film, plastic bags and other crafts, plasma storage.
3. because the linear molecular structure of DOTP is similar to DOS and DOA, its cold resistance is also better.
The volume resistivity of 4.DOTP is 10-20 times higher than that of DOP, and its mobility is excellent.
5., because DOTP does not contain o-phthalate two formate, it is not an environmental friendly plasticizer in the range of 16 16 kinds of plasticizers containing o-phthalic acid in the European Union and other countries.
The effect can be achieved by adding 1 to 2% plasticizers in concrete. Too many plasticizers will cause excessive separation of concrete, so it is generally not recommended. Depending on the composition of the concrete, too many plasticizers may also cause the retarding effect (retardingeffect).
The plasticizer used in the dry wall of gypsum is also known as a dispersant, which can increase the processing property of gypsum before it solidifies. In order to reduce the energy required for dry wall drying and add less water when making, the processability will become worse. Adding plasticizer can improve its processability.
In general, a square foot (MSF) size, a 1/2 inch thick (15g/ square meter) dry wall is added to a 2 pound plasticizer. If the excess plasticizer is added, the retarding effect will occur, and the strength of the dry wall of the gypsum will become worse.
The plasticizer used in the dry wall of gypsum is usually made from lignosulfonate. The high efficiency plasticizer is made of naphthalene sulfonic acid condensate or polycarboxylate ether. The amount of the plasticizer is only 1/2 to 1/3 of the general lignin plasticizer.
The working principle of the gypsum dry wall plasticizer is roughly similar to the working principle of the concrete plasticizer. Plasticizer long polymer molecules will encase concrete particles, provide negative charge, and make gypsum particles repel each other due to the same negative electricity and increase machinability.
Energetic materials and pyrotechnic agents usually use plasticizers. On the one hand, they can improve the physical properties of propellants or their adhesives. On the other hand, they can also be used as auxiliary fuels to enhance the propulsion force provided by unit mass fuel (i.e., specific impulse). In solid rocket propellants and smokeless gunpowder, special plasticizers are needed to improve physical properties or lift specific punching.
The plasticizers that can lift the specific impulse are generally called Energy - containing plasticizers (energeticplasticizer). Its advantage is to reduce the mass of the propellant, increase the payload of the rocket or increase its maximum speed. But sometimes because of safety or cost factors, it is still possible to use plasticizers that cannot boost the specific impact. The fuel of the spaceplane solid rocket booster will generally use synthetic rubber called hydroxy polybutadiene (HTPB) as its plasticizer.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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