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Star type polysulfone resin industrial synthesis method

A polysulfone resin and a synthesis method technology are applied in the field of industrialized high-pressure synthesis of a new type of enhanced polysulfone resin, and can solve the problems of low light transmittance of polyethersulfone, shortened service life of plastics, and reduced impact strength of light-transmitting resins. , to achieve the effect of saving procurement costs, saving costs and reducing consumption

Inactive Publication Date: 2016-02-17
GUANGDONG YOUJU ADVANCED MATERIAL RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most commonly used method is additive blending modification, but polysulfone itself is sensitive to additives, which will reduce the service life of the plastic itself while improving performance.
Chinese patent document CN102532899A discloses a physical method of adding titanium dioxide and glass fiber to polyethersulfone and using mechanical blending to improve its comprehensive mechanical properties such as bonding performance and compatibility, but both titanium dioxide and glass fiber will affect the resin. The light transmittance has a certain influence and the impact strength of the resin is significantly reduced
Chinese patent document CN102532899A discloses organosiloxane polyethersulfone resins containing linear and cage-type main chains and a preparation method thereof. By introducing functional molecular structures into the main chain of polyethersulfone, the polyethersulfone hydrophobicity and mediation properties are improved. electrical constant, but the light transmittance of polyethersulfone synthesized by this method is not high, which is mainly limited to the fields of coatings and microelectronic devices

Method used

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  • Star type polysulfone resin industrial synthesis method
  • Star type polysulfone resin industrial synthesis method
  • Star type polysulfone resin industrial synthesis method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In a 300-liter stainless steel reaction kettle equipped with a nitrogen pipe, a condensing water separator and a high-efficiency stirrer, add 35.0kg of 4,4'-dichlorodiphenyl sulfone, 29.5kg of bisphenol A, and 14.0kg of sodium carbonate in sequence, and then add 100.00kg N,N'-dimethylacetamide. After pumping air to reduce the pressure inside the kettle to -0.09MPa, introduce nitrogen to raise the pressure inside the kettle to 0.01MPa, repeat this process five times to vacuumize and introduce nitrogen to replace the air in the kettle, and finally introduce nitrogen to reduce the pressure in the kettle to 0.01MPa. The pressure was raised to 2.0MPa. Heat to make the temperature in the kettle reach 170°C to form salt at constant temperature for 1 hour, then raise the temperature to 200°C for constant temperature polymerization for 3 hours, then add 200.4g of aromatic triphenols (1) to the system, increase the stirring speed to 80 rpm, continue Constant temperature for 0.5 ...

Embodiment 2

[0032] In a 300-liter stainless steel reaction kettle equipped with a nitrogen pipe, a condensing water separator and a high-efficiency stirrer, 35.0kg of 4,4'-dichlorodiphenyl sulfone, 32.32kg of bisphenol S, 14.0kg of sodium carbonate were added in sequence, and then 100.00kg N,N'-dimethylformamide. After pumping air to reduce the pressure inside the kettle to -0.09MPa, introduce nitrogen to raise the pressure inside the kettle to 0.01MPa, repeat this process five times to vacuumize and introduce nitrogen to replace the air in the kettle, and finally introduce nitrogen to reduce the pressure in the kettle to 0.01MPa. The pressure was raised to 3.0MPa. Heat to make the temperature in the kettle reach 200°C to form salt at constant temperature for 1 hour, then raise the temperature to 240°C for constant temperature polymerization for 3 hours, then add 144.6g of aromatic triphenols (2) to the system, increase the stirring speed to 80 rpm, Continue to keep the temperature const...

Embodiment 3

[0037]In a 300-liter stainless steel reaction kettle equipped with a nitrogen pipe, a condensate separator and a high-efficiency stirrer, 35.0kg 4,4'-dichlorodiphenyl sulfone, 24.05kg 4,4'-biquinone, and 14.0kg Sodium carbonate, then add 80.00kg N,N'-dimethylformamide. After pumping air to reduce the pressure inside the kettle to -0.09MPa, introduce nitrogen to raise the pressure inside the kettle to 0.01MPa, repeat this process five times to vacuumize and introduce nitrogen to replace the air in the kettle, and finally introduce nitrogen to reduce the pressure in the kettle to 0.01MPa. The pressure was raised to 3.0MPa. Heat to make the temperature in the kettle reach 200°C to form salt at constant temperature for 1 hour, then raise the temperature to 240°C for constant temperature polymerization for 3 hours, then add 144.6g of aromatic triphenols (3) to the system, increase the stirring speed to 80 rpm, Continue to keep the temperature constant for 0.5 to 1.0 hours until th...

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Abstract

The invention discloses a star type polysulfone resin industrial synthesis method. Reinforced polysulfone resin is prepared through molecular design, excellent performance of original polysulfone is kept, melt viscosity of polysulfone is greatly reduced due to introduction of aromatic polyphenol, processing and forming are easier, thermal stability is higher, and the actual application field of polysulfone is greatly expanded. According to the method, the use amount of a key solvent of N-methyl pyrrolidone can be greatly reduced by controlling the solid content in the salifying stage and the polymerization stage and increasing the solid content in the polymerization stage, and cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an industrial high-pressure synthesis method of a novel reinforced polysulfone resin. Background technique [0002] Polysulfone is a thermoplastic special engineering plastic, represented by polyether sulfone (PES), bisphenol A polysulfone (PSU), polyphenylene sulfone (PPSU), because of the benzene ring in its molecular chain Rigidity, flexibility of ether group and large conjugated system formed by sulfone group and the whole structural unit, so it has high strength, flame resistance, radiation resistance, acid resistance, oxidation resistance, solvent resistance, biocompatibility, physical and mechanical properties and excellent insulation properties It is a polymer material with excellent comprehensive properties and has been widely used in many fields. However, polysulfone resin has a high melting point and high melt viscosity, which is not conducive to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/40
Inventor 王贤文
Owner GUANGDONG YOUJU ADVANCED MATERIAL RES CO LTD
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