Ultrafine pigment poda inonyanya kukamurwa kuita organic pigments uye inorganic pigments, organic pigments inonyanya kukamurwa kuita azo pigments, nyanza pigments, heterocyclic pigments, gobvu mhete ketone pigments, phthalocyanine pigments uye mamwe pigment. Inorganic pigments inonyanya kukamurwa kuva titanium dioxide, carbon black, iron oxide red, etc. Organic kana inorganic pigments ine mavara akajeka, simba rekuisa ruvara, simba guru remavara uye kujeka kwepamusoro, izvo zvinosangana nezvinodiwa zvejasi uye kudhinda ingi.
Nekudaro, mukugadzira pigment poda, iyo yakatsetseka iyo particle size, iyo yepigment hupfu ichawedzera, iyo inogona kutungamira nyore kune agglomeration, kugadzira zvidimbu zvakakura, pendi uye inki system kusagadzikana, zvichikanganisa zvakanyanya kunaka kwechigadzirwa.
Panguva ino, organic ammonium salt dispersant inodiwa kuwedzera kune pigment kupwanya process, pigment dispersant mu pigment paste system, kunyanya adsorb kusvika pamusoro pehupfu, kuderedza simba repamusoro re ultrafine pigment particles, kuti uwane yunifomu yekuparadzira maitiro, uye organic ammonium munyu dispersant anogona zvinobudirira kudzivirira flocculation kudzokera coarse kugadzikana inoyangarara ruvara bvudzi. Kuenderana kwakanaka nependi uye inki yekudhinda kuvandudza mashandiro ekupa ruvara.
Sei achidaroDispersing agent NNOkushanda?
TheDispersing agent NNOmolecule ine boka reanchor uye chikamu chinodzikamisa. Basa reboka rekumisa ndere kupa simba rakakwana rinosunga kune pigment filler particles. Dispersant molecules haadonhe kubva pamusoro pezvimedu, zvinova zvinodikanwa kuti dispersant ishande. Basa rechikamu chekudzikamisa ndechekudzikamisa pigment aggregate particles akaparadzirwa ne mechanical simba kuburikidza ne electrostatic repulsion uye spatial resistance muchikamu chemvura kudzivirira zvimedu kubva pakuungana.
Mune organic solvents, kana iyo yakagadzikana chikamu che dispersant ichidzikamisa yakapararira pigment particles ne spatial resistance, apoDispersing agent NNOzvidimbu zvidiki pane saizi yeketani yekunyungudutsa, cheni inonyungudutsa inosvina mumwe nemumwe uye entropy inoderera. Mumvura, ionization inoitika yakatenderedza mapoka eionic kuti aumbe kaviri layer, uye electrostatic repulsion inodzivirira particle agglomeration. Kana isiri-ionized polyether yakagadzikana, polyether inodzikamisa yakapararira pigment particles ne spatial resistance.
Nguva yekutumira: May-19-2022