Litaba

Mokhoa oa ho ntlafatsa ho hasana ha li-flame retardants

Ka ts'ebeliso e pharaletseng ea lisebelisoa tsa polymer le lihlahisoa tsa bareki ba elektroniki bophelong ba letsatsi le letsatsi, liketsahalo tsa mollo le tsona li ntse li eketseha, 'me kotsi eo e e tlisang e tšosa le ho feta. Ts'ebetso e thibelang malakabe ea thepa ea polymer e se e le ea bohlokoa le ho feta, ke molemong oa ho fihlela litlhoko tse thibelang malakabe tsa polasetiki le lihlahisoa tsa rabara, ho fokotsa tšilafalo ea lerōle e bakoang ke li-flame retardants, masterbatch e thibelang malakabe e bile teng, 'me e bapala karolo ea bohlokoahali. le karolo ea bohlokoa ho bopeng lihlahisoa tsa ho qetela.

Flame retardant masterbatch e etsoa ho latela mokhoa o utloahalang, ka motsoako oa manyolo oa "flame retardant", "lubricant dispersant" le mojari, ka ho hloekisoa ho hoholo, ho kopanya, ho ts'oana, ebe ho latela granulation ea extrusion. Ho sena, dispersant phetha karolo ea bohlokoa haholo, eketsa karolo e itseng ea dispersant e ka ba molemo haholo ho khothalletsa ho hasana ha lelakabe retardant, e le hore ho ke ke ho le bonolo ho evenly qhalakantsoeng ka tshebetso, ho thibela agglomeration ea lelakabe retardant, the ho ntlafatsa phello ea ho qhalakanngoa, e le ho etsa hore limolek'hule tse thibelang lelakabe li bapale phello e ntle ea ho thibela lelakabe, ka tsela eo, ho ntlafatsa ho thibela lelakabe. bokhoni ba polasetiki, lihlahisoa tsa rabara, mollo o tla khangoa qalong.

Leha ho le joalo, ha e le hantle, lipolasetiki tse ngata le likarolo tsa rabara tse nang le likarolo tse thibelang lelakabe li sitoa ho etsa thepa ea tsona e thibelang lelakabe ka lebaka la ho qhalakanngoa ho sa tšoaneng ha lelakabe le thibelang mollo ka thepa ea mollo, e leng se fellang ka mollo o moholoanyane le tahlehelo e tebileng.

E le ho khothalletsa ho qhalakanngoa junifomo ea retardants lelakabe kapa malakabe retardant masterbatch ka sehlahiswa ho bopeha tshebetso, fokotsa ketsahalo ea ho hasana ho sa leka-lekaneng bakoang ke lelakabe retardant phello e ke ke ka tsela e atlehileng exerted, joalo-joalo, le ho ntlafatsa boleng ba lelakabe retardant dihlahiswa, SILIKE e hlahisitse motsoako o fetotsoeng oa silicone SILIMER hyperdispersant.

SILIMER ke mofuta oa tri-block copolymerized modified siloxane e entsoeng ka polysiloxanes, lihlopha tsa polar le lihlopha tse telele tsa carbon chain. Likarolo tsa ketane ea polysiloxane li ka phetha karolo e itseng ea ho itšehla thajana pakeng tsa limolek'hule tse thibelang mollo tlas'a ho kuta ka mechine, ho thibela ho kopana ha bobeli ba limolek'hule tse thibelang mollo; likarolo tsa ketane ea lihlopha tsa polar li na le tlamahano e itseng le lelakabe la mollo, li bapala karolo ea ho kopanya; likarolo tse telele tsa ketane ea carbon li na le tumellano e ntle haholo le thepa ea motheo.

Letoto lena la lihlahisoa li loketse li-resin tse tloaelehileng tsa thermoplastic, TPE, TPU le li-elastomer tse ling tsa thermoplastic, 'me li ka ntlafatsa ho lumellana pakeng tsa li-pigment / filler powders / functional powders le resin systems, le ho boloka boemo ba ho hasana ha phofo bo tsitsitse.

Ka nako e ts'oanang, e ka fokotsa viscosity ea ho qhibiliha, ea fokotsa torque ea extruder, khatello ea extrusion, ea ntlafatsa ts'ebetso ea lisebelisoa, ka lubrication e ntle ea ts'ebetso, 'me ka nako e ts'oanang e ka ntlafatsa maikutlo a holim'a thepa, ka tekanyo e itseng ea boreleli 'me ha e ame thepa ea mechine ea thepa, ke ho khothalletsa ho qhalakanngoa junifomo ea likarolo tse thibelang malakabe ho khothalletsa lelakabe retardant phello ea ho qetela. sehlahisoa ho fana ka ho bapala ka botlalo ho litharollo tsa boleng bo holimo.

Ntle le moo, letoto lena la lihlahisoa ha le loketse feela bakeng sa masterbatch e khutlisang malakabe, empa hape le bakeng sa masterbatch ea mebala kapa lisebelisoa tse ngata tse hasantsoeng pele.