| 摘要 |
<p>A process is disclosed for the concentration of aqueous fluoropolymer dispersion. Polyacrylic acid (or its salts) or an acrylic polymer of high acid content (or its salts) of average molecular weight between 50,000 and 500,000 is used as a concentrating agent and is added to the fluoropolymer dispersion. The figure is a graph showing the relationship between the natural logarithm of polyacrylic acid (PAA) concentration and the radius of gyration of the PAA.</p> |
