Aromatic sulfone composition as well as preparation method and application thereof
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A kind of technology of aromatic sulfone and composition, applied in the field of aromatic sulfone composition and preparation thereof, and can solve problems such as difficult and high transparency
Inactive Publication Date: 2020-10-23
KINGFA SCI & TECH CO LTD +1
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[0003] Researchers in this field have done a lot of work on the fluidity of aromatic sulfone polymers, mainly focusing on improving the fluidity of composite materials or copolymer molding compositions. It is difficult to take into account its own high transparency and maintain high light transmission of products. There are few reports on improving its fluidity and improving the color of products under the premise of high efficiency.
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Embodiment 1～6 and comparative example 1～4
[0045] This embodiment and comparative example provide a series of polyphenylsulfone compositions. Its preparation process is as follows:
[0046] (1) Preparation of polyphenylsulfone polymer
[0047] Quantitatively add 36kg sulfolane, 8.79kg 4,4'-dichlorodiphenyl sulfone and 5.59kg 4,4'-biphenyldiphenol into a 100L reaction kettle protected by high-purity nitrogen, stir to raise the temperature and add 33kg sodium carbonate and 3kg di For toluene, use the solution polycondensation method, keep it at 180-220°C for 5 hours, during the reaction process, the xylene will continuously discharge the reaction water through azeotropy, until no water is discharged, the salt-forming reaction is over, and the xylene is evaporated. Afterwards, the temperature of the reaction system was raised to 235° C. and kept for 3 h. Stop stirring and heating, precipitate the above-mentioned polymer material into strips in water, pulverize it with a crusher to obtain a powder material, boil it with ...
Embodiment 8～14 and comparative example 5～8
[0053] This embodiment and comparative example provide a series of polyethersulfone compositions. Its preparation process is as follows:
[0054] (1) Preparation of polyethersulfone polymer
[0055] Quantitatively add 36kg sulfolane, 8.79kg 4,4'-dichlorodiphenylsulfone and 7.51kg 4,4'-dihydroxydiphenylsulfone into a 100L reaction kettle protected by high-purity nitrogen, stir and add 33kg sodium carbonate and 3kg Xylene, using the solution polycondensation method, kept at 180-220°C for 5 hours, during the reaction process, the xylene was continuously discharged through azeotropic reaction water until no water was discharged, the salt-forming reaction was completed, and the xylene was evaporated. Afterwards, the temperature of the reaction system was raised to 235° C. and kept for 3 h. Stop stirring and heating, precipitate the above-mentioned polymer material into strips in water, pulverize it with a crusher to obtain a powder material, boil it with deionized water for 1 hou...
Embodiment 14
[0061] This embodiment provides an aromatic sulfone composition. In the preparation process, except that the selected tert-butyl aromatic phenol compound is 2,4-di-tert-butylphenol, the rest are the same as in Example 1.
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Abstract
The invention relates to an aromatic sulfone composition as well as a preparation method and application thereof. The aromatic sulfone composition includes an aromatic sulfone polymer and a tert-butylaromatic phenol compound; wherein the content of the tert-butyl aromatic phenol compound in the aromatic sulfone composition is 15 to 1,000 ppm. According to the aromatic sulfone composition providedby the invention, the performance of the aromatic sulfone polymer is improved by adding the tert-butyl aromatic phenol compound with relatively small molecular weight; the tert-butyl aromatic phenolcompound a certain content is added for not only keeping high light transmittance of the composition, but alsoimproving the fluidity of the composition, has certain oxidation resistance, can reduce the color and luster of the composition and parts thereof in the product processing process, and gives consideration to the fluidity and color grade of the composition. Especially in the processing process of transparent products such as milk bottles, compared with pure resin, the processing temperature can be reduced, the color grade of the products can be improved on the premise that the high light transmittance of the products is guaranteed, low-cost and high-transparency light-color products are obtained, and great practical application significance is achieved.
Description
technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to an aromatic sulfone composition and its preparation method and application. Background technique [0002] Aromatic sulfone polymers are high-temperature-resistant, highly transparent polymer materials, and have excellent properties such as chemical corrosion resistance, excellent electrical properties, and dimensional stability. They are widely used in aerospace, medical, food, and other fields. The presence of polar sulfone groups makes the intermolecular cohesion energy larger, resulting in high melt viscosity, poor fluidity, high processing temperature, and easy yellowing and other product defects. In order to improve the fluidity of aromatic sulfone polymers, aromatic sulfone polymers are usually physically blended with other resins or flow modifiers with high fluidity or chemically copolymerized to obtain high fluidity and good heat resistance. Propert...
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