Polyvinyl pyrrolidone, abbreviated li PVP, yog ib qho uas tsis yog-ionic polymer compound uas yog qhov tshwj xeeb tshaj plaws thiab feem ntau kawm tshuaj zoo ntawm N-vinyl amide polymers. Nws tau tsim los ua cov homopolymers, copolymer, thiab cross-linked polymers nrog peb pawg loj: non-ionic, cationic, thiab anionic, thiab peb qhov tshwj xeeb: qib kev lag luam, qib tshuaj, thiab qib zaub mov. Nws cov txheeb ze molecular hnyav li ntawm ntau txhiab mus rau ntau tshaj ib lab, thiab nws tau siv dav vim nws cov khoom zoo heev thiab tshwj xeeb.