Bipolar surfactants ndeye ma surfactants ane ese anionic uye cationic hydrophilic mapoka.

Kutaura zvakanyanya, amphoteric surfactants makomisheni ane chero maviri hydrophilic mapoka mukati memorekuru imwechete, kusanganisira anionic, cationic, uye nonionic hydrophilic mapoka. Iwo anowanzo shandiswa amphoteric surfactants anowanzo hydrophilic mapoka ane ammonium kana quaternary ammonium munyu mune cationic chikamu uye carboxylate, sulfonate, uye phosphate marudzi muanionic chikamu. Semuyenzaniso, amino acid amphoteric surfactants ane amino uye zvikamu zvemapoka mumorekuru imwechete ndeye betaine amphoteric surfactants yakagadzirwa kubva mumunyu wemukati une ese ari maviri quaternary ammonium uye carboxyl mapoka, ane akasiyana siyana emhando.

Kuratidzwa kweamphiphilic surfactants kunosiyana ne pH kukosha kwemhinduro yavo.

Kuratidza zvinhu zve cationic surfactants mune acidic media; Kuratidza zvinhu zveanionic surfactants mune alkaline media; Ratidza zvimiro zvevasiri-ionic surfactants mune neutral media. Iyo poindi iyo cationic uye anionic zvimiro zvakaringana zvakakwana inonzi isoelectric point.

Iri paisoelectric point, amino acid type amphoteric surfactants dzimwe nguva inonaya, nepo betaine type surfactants isinganakire nyore kunyangwe paisoelectric point.

Betaine mhandoma surfactants pakutanga akaverengerwa sequaternary ammonium salt compounds, asi kusiyana nequaternary ammonium salts, havana anions.
Betaine inochengetedza mamorekuru ayo akanaka echaji uye cationic zvivakwa mune acidic uye alkaline midhiya. Rudzi urwu rwesurfactant harugone kuwana mari yakanaka kana yakaipa. Zvichienderana nepH kukosha kweiyo aqueous solution yerudzi urwu rwekomboni, zvine musoro kuiisa muchikamu seamphoteric surfactant zvisizvo.

Zvinoenderana nenharo iyi, mhando yemhando ye betaine inofanirwa kuverengerwa se cationic surfactants. Zvisinei nekupokana uku, vazhinji vashandisi ve betaine komputa vanoramba vachiaisa mumapoka seamphoteric makomisheni. Muchikamu cheheteroelectricity, pane biphasic chimiro mukuita kwepamusoro: R-N+(CH3) 2-CH2-COO -.

Muenzaniso wakajairika wemhando ye betaine surfactants ndeye alkylbetaine, uye chigadzirwa chayo chinomiririra N-dodecyl-N, N-dimethyl-N-carboxyl betaine [BS-12, Cl2H25-N+ (CH3) 2-CH2COO -]. Betaine nemapoka emamide [Cl2H25 muchimiro inotsiviwa neR-CONH - (CH2) 3-] ine kushanda kuri nani.

Kuoma kwemvura hakukanganisibetainesurfactant. Inoburitsa furo rakanaka uye kugadzikana kwakanaka mumvura yakapfava uye yakaoma. Pamusoro pekusanganiswa neanionic komisheni pane yakaderera pH kukosha, inogona zvakare kushandiswa musanganiswa neanionic uye cationic surfactants. Nekubatanidza betaine neanionic surfactants, yakanaka viscosity inogona kuwanikwa.