In chinyorwa chekupedzisira, takazivisa kubuda kwezvinoparadzira, mamwe maitiro uye mabasa ezvinoparadzira. Muchikamu chino, tichaongorora mhando dzezvinoparadzira munguva dzakasiyana nenhoroondo yekukura kwezvinoparadzira.

Mushonga wepasi wekuderedza uremu hwemorekuru wetsika unonyorovesa uye unoparadzira
Mushonga wekutanga waive munyu wetriethanolamine wemafuta acid, uyo wakatanga kushandiswa pamusika makore angangoita zana apfuura. Mushonga uyu unoshanda zvakanaka uye unodhura mari yakawanda mukushandiswa kwependi mumaindasitiri. Hazvigoneki kuushandisa, uye kushanda kwawo kwekutanga mumafuta epakati nepakati hakuna kuipa.

Mumakore ekuma1940 kusvika kuma1970, mavara aishandiswa muindasitiri yekupenda aive mavara asina kuumbwa uye mamwe mavara eorganic aive nyore kuparadzira. Zvinhu zvinoparadzira mukati menguva iyi zvaive zvinhu zvakafanana nemasurfactants, neboka remapigment anchor kune rimwe divi uye chikamu chinoenderana neresin kune rimwe divi. Mamorekuru mazhinji aive nenzvimbo imwe chete yekunamatira pigment.

Kubva pamaonero echimiro, zvinogona kukamurwa kuita mapoka matatu:

(1) zvinhu zvinobva mumafuta acid, zvinosanganisira fatty acid amides, fatty acid amide salts, uye fatty acid polyethers. Semuenzaniso, mafuta acids akagadziriswa ane mablocks akagadzirwa neBYK muna 1920-1930, ayo akaiswa munyu ne long-chain amines kuti awane Anti-Terra U. Kunewo BYK's P104/104S ine mapoka ekupedzisira anoshanda zvakanyanya zvichibva paDA addition reaction. BESM® 9116 kubva kuShierli ideflocculating dispersant uye inowanzo dispersant muindasitiri yeputty. Ine wettability yakanaka, anti-settleting properties uye storage stability. Inogona zvakare kuvandudza anti-corrosion properties uye inoshandiswa zvakanyanya mu anti-corrosion primers. BESM® 9104/9104S ideal controlled flocculation dispersant ine akawanda anchoring groups. Inogona kuumba network structure kana yakapararira, iyo inobatsira zvikuru mukudzora pigment sedimentation uye floating color. Sezvo zvinhu zvakabikwa zvemafuta zvinobva mumafuta asidhi hazvichashandisi petrochemical raw materials, zvinogona kuvandudzwa.

(2) Mapolymer eOrganic phosphoric acid ester. Rudzi urwu rwe dispersant rune kugona kwese kwese kwe pigments inorganic. Semuenzaniso, BYK 110/180/111 uye BESM® 9110/9108/9101 kubva kuShierli ma dispersants akanaka kwazvo ekuparadzira titanium dioxide uye inorganic pigments, nekuderedza viscosity zvakanyanya, kukura kwemavara uye mashandiro ekuchengetedza. Pamusoro pezvo, BYK 103 neBESM® 9103 kubva kuShierli zvese zvinoratidza zvakanakira zvekuderedza viscosity uye kugadzikana kwekuchengetedza pakuparadzanisa matte slurry.

(3) Non-ionic aliphatic polyethers uye alkylphenol polyoxyethylene ethers. Huremu hwemolecular hwerudzi urwu rwe dispersant hunowanzova pasi pe2000 g/mol, uye hunonyanya kutarisisa kupararira kwepigment ne fillers zvisingasanganisike. Zvinogona kubatsira kunyorovesa pigments panguva yekukuya, zvinonyatsonamira pamusoro pepigments zvisingasanganisike uye kudzivirira kupatsanurwa uye kunaya kwepigments, uye zvinogona kudzora flocculation uye kudzivirira mavara anoyangarara. Zvisinei, nekuda kwehuremu hudiki hwemolecular, hazvigone kupa steric inhibitor inoshanda, uye hazvigone kuvandudza gloss uye distinctiveness yependi film. Mapoka eIonic anchoring haagone kunamirwa pamusoro pepigments zvisingasanganisike.

Zvidimbu zvinorema zvakanyanya zvemamorekuru
Muna 1970, mavara eorganic akatanga kushandiswa akawanda. Mapigment e ICI e phthalocyanine, mapigment e DuPont e quinacridone, mapigment e CIBA e azo condensation, mapigment e Clariant e benzimidazolone, nezvimwewo zvese zvakatanga kushandiswa mumaindasitiri uye zvakatanga kushandiswa muma1970. Ma agents ekutanga e low molecular weight weight akanga asisakwanise kugadzirisa mavara aya, uye ma dispersants matsva e high molecular weight akatanga kugadzirwa.

Rudzi urwu rwemuchina wekuparadzanisa huremu hwemamorekuru hunosvika 5000-25000 g/mol, nemapoka akawanda emuchina wekunamatira pigment pamorekuru. Cheni huru yepolymer inopa kubatana kwakakura, uye cheni yedivi yakagadziriswa inopa chipingamupinyi chesteric, kuitira kuti zvidimbu zvepigment zvive mumamiriro ekudzima uye akagadzikana. Zvigadzirwa zvemuchina wepamusoro zvinogona kudzikamisa pigments dzakasiyana-siyana uye kugadzirisa matambudziko akadai seruvara rwekuyerera uye kuyerera, kunyanya kune organic pigments uye carbon black ine saizi diki yezvikamu uye nyore kuyerera. Zvigadzirwa zvemuchina wepamusoro zvese zvinobvisa kuyerera kwemvura zvine mapoka akawanda emuchina wekunamatira pigment pamorekuru, izvo zvinogona kuderedza zvakanyanya viscosity yemavara, kuvandudza simba rekuti pigment intensity, kupenya kwependi uye kupenya, uye kuvandudza kujeka kwepigments dzinoonekera. Mumasystem akavakirwa mumvura, zvigadzirwa zvemuchina wepamusoro zvine resistance yakanaka yemvura uye saponification resistance. Ehe, zvigadzirwa zvemuchina wepamusoro zvinogonawo kuva nemigumisiro, iyo inonyanya kubva muamine value yemuchina wekuparadzira. Amine value yakakwira inotungamira mukuwedzera viscosity ye epoxy systems panguva yekuchengetwa; nguva shoma yekushanda kwe polyurethanes dzine zvikamu zviviri (zvichishandisa aromatic isocyanates); kuderedzwa kwekuita kweasidhi-curing systems; uye kushomeka kwe catalytic effect ye cobalt catalysts mu alkyds dzinoomesa mhepo.

Kubva pamaonero ekugadzirwa kwemakemikari, rudzi urwu rwemuparadziri rwakakamurwa kuita mapoka matatu:

(1) Zvishandiso zvepolyurethane zvine huremu hwakawanda, izvo zvinowanzoitwa ne polyurethane dispersants. Semuenzaniso, BYK 160/161/163/164, BESM® 9160/9161/9163/9164, EFKA 4060/4061/4063, uye chizvarwa chezvino che polyurethane dispersants BYK 2155 neBESM® 9248. Rudzi urwu rwezvishandiso rwakaonekwa kare uye rune vanhu vakawanda. Rune hunhu hwakanaka hwekuderedza viscosity uye hunhu hwekuvandudza mavara e organic pigments uye carbon black, uye rwakambova chishandiso che organic pigments. Chigadzirwa chezvino che polyurethane dispersants chakavandudza zvakanyanya hunhu hwekuderedza viscosity uye kukura kwemavara. BYK 170 neBESM® 9107 dzakakodzera masisitimu ane acid-catalyzed. Zvishandiso hazvina amine value, izvo zvinoderedza njodzi yekuungana panguva yekuchengetwa kwependi uye hazvikanganisi kuoma kwependi.

(2) Polyacrylate dispersants. Izvi zvinoparadzira, zvakaita seBYK 190 neBESM® 9003, zvave zvinoparadzira zvakajairika zvemachira emvura.

(3) Zvidimbu zvepolymer zvine branched. Zvidimbu zvepolymer zvine branched zvinonyanya kushandiswa ndiLubrizol 24000 neBESM® 9240, izvo zviri amide + imides zvichibva pa polyester dzakareba. Zvigadzirwa izvi zviviri zvigadzirwa zvine patent zvinonyanya kuvimba ne polyester backbone kuti igare yakagadzikana. Kugona kwavo kubata carbon black kuchiri kwakanaka. Zvisinei, polyester ichapenya pakupisa kwakaderera uye ichapenyawo mupendi yakapedzwa. Dambudziko iri rinoreva kuti 24000 inogona kushandiswa chete muinki. Pamusoro pezvose, inogona kuratidza kukura kwakanaka kwemavara uye kugadzikana kana ikashandiswa kuparadzira carbon black muindasitiri yeinki. Kuti ivandudze mashandiro ecrystallization, Lubrizol 32500 neBESM® 9245 dzakabuda imwe mushure meimwe. Zvichienzaniswa nezvikamu zviviri zvekutanga, zvidimbu zvepolymer zvine denderedzwa remamorekuru uye mapoka e pigment affinity affinity, kazhinji zvine kukura kwakanaka kwemavara uye kushanda kwakasimba kwe viscosity. Kuenderana kwe polyurethane dispersants kunogona kugadziriswa zvakasiyana-siyana, kunyanya kufukidza ma alkyd resins ese kubva ku long oil kusvika ku short oil, ma saturated polyester resins ese, uye ma hydroxyl acrylic resins, uye zvinogona kudzikamisa ma carbon blacks mazhinji uye organic pigments emhando dzakasiyana. Sezvo kuchine huwandu hwakawanda hwema grades akasiyana pakati pe 6000-15000 molecular weights, vatengi vanofanirwa kuongorora kuti vaone kana vakakodzera uye kuti vawedzere huwandu hwavo.

Zvinoparadzira polymerization zvemahara zvemahara
Mushure megore ra1990, kudiwa kwemusika kwekupararira kwepigment kwakawedzera kuvandudzwa uye pakava nebudiriro mukugadzirwa kwetekinoroji yekugadzira polymer, uye chizvarwa chechangobva kugadzirwa chemidziyo yekuparadzira polymerization yefree radical yakadzorwa.

Kugadziriswa kwefree radical polymerization (CFRP) kune chimiro chakagadzirwa nemazvo, neboka rekunamatira kune rimwe divi repolymer uye chikamu chakagadziriswa kune rimwe divi. CFRP inoshandisa mamonomer akafanana neakajairika epolymerization, asi nekuti mamonomer akarongwa kakawanda pazvikamu zvemamorekuru uye kugoverwa kwehuremu hwemamorekuru kwakafanana, mashandiro epolymer dispersant yakagadzirwa ane qualitative leap. Iri boka rekunamatira rinoshanda rinovandudza zvikuru kugona kwe dispersant kurwisa flocculation uye kukura kweruvara rwe pigment. Chikamu chakagadziriswa chakanyatsogadzirwa chinopa dispersant color paste grinding viscosity yakaderera uye kuwedzera pigment yakakwira, uye dispersant inoenderana zvakanyanya nezvinhu zvakasiyana-siyana zve resin base.

Kugadzirwa kwezvipenga zvemazuva ano zvinoparadzira mavara kwagara kuripo kwemakore asingasviki zana. Kune mhando dzakawanda dzezvipenga zvemavara akasiyana-siyana uye masisitimu ari pamusika. Chinhu chikuru chinobva zvinhu zvinoparadzira mavara chichiri che petrochemical raw materials. Kuwedzera huwandu hwezvinhu zvinogadziriswazve muma dispersants inzira yekuvandudza inovimbisa zvikuru. Kubva pakugadzirwa kwezvipenga, zvipenga zviri kuramba zvichishanda. Ingave iri kugona kuderedza viscosity kana kukura kwemavara uye mamwe mahunyanzvi ari kuvandudzwa panguva imwe chete, maitiro aya acharamba aripo mune ramangwana.

Nanjing Reborn New Materials inopawetting dispersant agent yekupenda nekuputira, kusanganisira zvimwe zvinoenderana neDisperbyk.