摘要:
A polymer composition includes at least one poly(aryl ether sulfone) (PAES) polymer, wherein the at least one poly(aryl ether sulfone) (PAES) includes polyphenylsulfone (PPSU), and at least one polycarbonate-polysiloxane copolymer (SiPC). The polymer composition may optionally include one or more poly(aryl ether sulfones) (PAES) polymers other than the polyphenylsulfone (PPSU). The polymer composition may also optionally include one or more polyaryletherketones (PAEK), preferably polyetheretherketone (PEEK). Optionally, the polymer composition may additionally include titanium dioxide (TiO 2 ).
摘要:
A polymer composition includes at least two different polymers independently selected from a poly(aryl ether ketone) (PAEK), a poly(aryl ether sulfone) (PAES), a polyarylene sulfide (PAS) and a polyetherimide (PEI), and about 0.05 to about 2 wt.% of at least one alkali metal carbonate. Preferably, the polymer composition is free or substantially free of solvent. A method includes melt mixing at least two different polymers independently selected from a poly(aryl ether ketone) (PAEK), a poly(aryl ether sulfone) (PAES), a polyarylene sulfide (PAS) and a polyetherimide (PEI), and about 0.05to about 2wt.% of at least one alkali metal carbonate to form a compatibilized polymer composition
摘要:
An anti-fouling coating is provided, containing a continuous matrix comprising a first component; a plurality of inclusions comprising a second component, wherein the first component is a low-surface-energy polymer having a surface energy, and the second component is a hygroscopic material containing one or more ionic species. The low-surface-energy polymer and the hygroscopic material are chemically connected ionically or covalently, such as in a segmented copolymer composition comprising fluoropolymer soft segments and ionic species contained within the soft segments. The continuous matrix and the inclusions form a lubricating surface layer in the presence of humidity. Coefficient-of-friction experimental data is presented for various sample coatings. The incorporation of ionic species into the polymer chain backbone increases the hygroscopic behavior of the overall structure. Improvement in lubrication enables material to be cleared from a surface using the natural motion of an automotive or aerospace vehicle.
摘要:
L'invention concerne une composition pour matériau composite ou composition de matériau composite de type Poly(aryl éther cétone) (PAEK), ladite composition étant caractérisée en ce qu'elle comprend au moins un pré-polymère réactif, de formule X- (EKKE)-X et/ou X-(PAEK)-X avec un degré de polymérisation n tel que 1≤n≤15 et de préférence 2≤n≤10, dans laquelle X représente deux fonctions réactives terminales identiques,chacune portée par un groupement benzoyle ou un groupement phénoxy terminal, lesdites fonctions X étant aptes à réagir entre –elles ou avec un allongeur de chaine par des réactions d'addition.
摘要:
Described herein are polymer compositions having a poly(ether sulfone) polymer and (i) a polysulfone polymer or (ii) a poly(phenyl sulfone) polymer. In some embodiments, the polymer compositions can optionally include one or more additives. It has been surprisingly found that the aforementioned polymer compositions have outstanding anti-stick properties with respect to proteins.
摘要:
A material for use with a 3D printer comprises a polyaryletherketone (PAEK) having an amorphous morphology. In some embodiments, the material also includes one or more further compounds having an amorphous morphology. In some further embodiments, the material includes, in addition to an amorphous PAEK, a compound having a semi‐crystalline morphology.