New developped PVC extrusion profile for power socket rail
others
Plastic polysulfone
by：CSSSLD
2021-01-23
PSU has excellent electrical insulation, especially in high temperature environment and water and moisture in the air after placing can still keep good electrical insulation.
Injection molding processing PSU on general inorganic acid, alkali, salt and fat hydrocarbons, alcohols, and oil is relatively stable, but will be affected by strong solvents of sulfuric acid, nitric acid, some polar solvents such as ketones, halogenated hydrocarbon, aromatic hydrocarbon, dissolution and swelling methyl formamide will make it happen.
polysulfone type of plastic is a kind of main chain structure containing diphenyl sulfone linear thermoplastic engineering plastics. Polysulfone according to its structure can be divided into three categories: bisphenol A type polysulfone, aromatic sulfone, polyether sulfone, bisphenol A type of polysulfone output biggest and the most widely used. This kind of plastic has good heat resistance, electrical insulation, dimensional stability, creep resistance and become comprehensive performance is very good engineering plastics, has been widely used since appeared in the 1960 s.
the PSU Tg at 190 ℃, thermal deformation temperature of 175 ℃, can be in - for a long time 100 - Use under 150 ℃, and PSU has excellent heat-resistant oxygen aging, at 150 ℃ after 2 years of hot oxygen aging, tensile yield strength and thermal deformation temperature decreases, the impact strength still can maintain 55% of the original value. Although PSU's long-term use temperature is not high, only about 150 ℃, but it is one of the cheapest price of all the heat resistant plastic, equivalent to half of the PTFE.
bisphenol A type polysulfone was among the first to come out of plastic polysulfone varieties, the commonly used plastic polysulfone namely and so on. PSU production process is first by bisphenol A and sodium hydroxide in dimethyl sulfoxide solvent reaction in the production of bisphenol A (bpa) sodium salt, with 4, 4 again & prime; Dichloro generate polysulfone two phenol solution polycondensation reaction. PSU molecular structure is composed of the isopropyl, ether, sulfone connect phenethyl into linear macromolecule polymer.
the isopropyl genes to replace the structure symmetry and the non-polarity, can decrease the molecular inter-atomic forces, in addition to the existence of ether bond, endows the polymer toughness and melt processing features. Sulfone and phenyl makes the macromolecular main chain shows a larger rigidity, lead to PSU difficult to crystallization; Diphenylene sulfone based on oxygen atoms is symmetrical, in the main chain sulfur atoms in the highest oxidation state, make the polymer has excellent oxidation resistance, and sulfone and two adjacent benzene formed a highly coexistence diphenyl sulfone structure, make the polymer has high hardness, thermal stability, resistance to radiation and other characteristics. PSU is a kind of high mechanical properties and heat resistance of amorphous polymers.
FEP non-polarity, moisture absorption rate is small, is a kind of excellent electrical insulation, high chemical stability and good weatherability. But its strength, abrasion resistance and creep resistance than other engineering plastics. FEP PTFE processing, more easily than it can produce some PTFE could not get parts. FEP can adopt injection molding, extrusion, mould, and coating film, sheet, rod and filament, used for pipe, wire, cable, etc.
PSU tensile strength and bending strength is better than that of POM, PA and PC, such as general engineering plastic, even at 150 ℃ when the tensile strength still can reach 60 mpa, while most of the injection molding processing plant general engineering plastics has lost use value. When the heat can still maintain its has the nature of the mechanical properties at room temperature is less than the general engineering plastics. PSU creep resistance is very outstanding, at room temperature under 21 mpa stress after 1000 h, creep variable is only 1%, in 99 ℃ hot air, a year under stress, creep variable is still less than 2%.
more excellent articles: fluorine plastic, click directly.
http://www。 csssld。 cn//html/2017/Info_1023/706。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
polysulfone type of plastic is a kind of main chain structure containing diphenyl sulfone linear thermoplastic engineering plastics. Polysulfone according to its structure can be divided into three categories: bisphenol A type polysulfone, aromatic sulfone, polyether sulfone, bisphenol A type of polysulfone output biggest and the most widely used. This kind of plastic has good heat resistance, electrical insulation, dimensional stability, creep resistance and become comprehensive performance is very good engineering plastics, has been widely used since appeared in the 1960 s.
the PSU Tg at 190 ℃, thermal deformation temperature of 175 ℃, can be in - for a long time 100 - Use under 150 ℃, and PSU has excellent heat-resistant oxygen aging, at 150 ℃ after 2 years of hot oxygen aging, tensile yield strength and thermal deformation temperature decreases, the impact strength still can maintain 55% of the original value. Although PSU's long-term use temperature is not high, only about 150 ℃, but it is one of the cheapest price of all the heat resistant plastic, equivalent to half of the PTFE.
bisphenol A type polysulfone was among the first to come out of plastic polysulfone varieties, the commonly used plastic polysulfone namely and so on. PSU production process is first by bisphenol A and sodium hydroxide in dimethyl sulfoxide solvent reaction in the production of bisphenol A (bpa) sodium salt, with 4, 4 again & prime; Dichloro generate polysulfone two phenol solution polycondensation reaction. PSU molecular structure is composed of the isopropyl, ether, sulfone connect phenethyl into linear macromolecule polymer.
the isopropyl genes to replace the structure symmetry and the non-polarity, can decrease the molecular inter-atomic forces, in addition to the existence of ether bond, endows the polymer toughness and melt processing features. Sulfone and phenyl makes the macromolecular main chain shows a larger rigidity, lead to PSU difficult to crystallization; Diphenylene sulfone based on oxygen atoms is symmetrical, in the main chain sulfur atoms in the highest oxidation state, make the polymer has excellent oxidation resistance, and sulfone and two adjacent benzene formed a highly coexistence diphenyl sulfone structure, make the polymer has high hardness, thermal stability, resistance to radiation and other characteristics. PSU is a kind of high mechanical properties and heat resistance of amorphous polymers.
FEP non-polarity, moisture absorption rate is small, is a kind of excellent electrical insulation, high chemical stability and good weatherability. But its strength, abrasion resistance and creep resistance than other engineering plastics. FEP PTFE processing, more easily than it can produce some PTFE could not get parts. FEP can adopt injection molding, extrusion, mould, and coating film, sheet, rod and filament, used for pipe, wire, cable, etc.
PSU tensile strength and bending strength is better than that of POM, PA and PC, such as general engineering plastic, even at 150 ℃ when the tensile strength still can reach 60 mpa, while most of the injection molding processing plant general engineering plastics has lost use value. When the heat can still maintain its has the nature of the mechanical properties at room temperature is less than the general engineering plastics. PSU creep resistance is very outstanding, at room temperature under 21 mpa stress after 1000 h, creep variable is only 1%, in 99 ℃ hot air, a year under stress, creep variable is still less than 2%.
more excellent articles: fluorine plastic, click directly.
http://www。 csssld。 cn//html/2017/Info_1023/706。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
Custom message
Related Products
